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Stephen M.Jones , Admiiiistrative Offices< 4060 Sunrise Highway, Oakdale, NewYork 11769-0901
Chief ExecutivQ Officer (631) 563-0219
Fax(631) 568-0370
March 23,2009
Constantine E. Kontolcosta, P.E.
KACE Group
���.No<-t.11 Road- ,. _..._...
P.t�. Box 6�
� Greenport, NY 1i944
Dear Mr. Kontokosta: �
I'd lilce to respolzd to your letter of March 1�, 2oog tivhich includes an excerpted
attachment signeci by Sherri Aicher, Envilanmeiltal Analyst. I've re�Tie�ved her request
and yours and offer the follov�nng observations:
- Provided you are talcing all your�vater(domestic, fire, irrigation) froin us far. your
proposed affordable housing developinent, as we had assumecl you �?ould. wlzeii tive
issued you a water availability letter, your development �rill not have an impact on our
supplies. Our supplies do all come froin the north forlc and we design our system for
peak fiiture satZ.iration-demand. We 'haye analyzed oiir supplies and clo so every five
years in a comprehensive way with a thorough SEQRA analysis, which the NYSD.EC has
in their possessiorl already. They issue well permits to us based an a capped maxirnuni
gallons per minute and we are required to provide a complete analysis of any �otential
problerns that rnigllt occur from plunping. We �se these �eal� ainounts 'in our
� computatians as to whether we are a�proaching a possible pezl:deinalid. �
We ptimp all our north fork we11s v�ligl�tly and on].y some seasanall�because
of the potential for either salt water intrusion or infiltration of surface containinants.
You are welcome to use this le-kter in any response STou need to make to the
- NYSDEG and please refer any further concerns they might have about fihe public water
supply to us for proper response. , _
Sinccre ;
.. S ph 1VI. nes �
hie ' xecu ZiTe Officer
SMJ:drnrr�i
2006 National Source lNater Protectfore Award�linner
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4060 Sunrise Highway, PO Box 38, Oakdale, New York 11769
March 4, 2008
The Kace Group -
Box 67
Greenport, NY 10019 �
Attn: Constantine Kontokosta
Re: Water Availability— KACE LLC—Proposed Affordabie Housing
• SCTM# 1000-4-3-1 � "' .
File# 4776047
Dear Mr. Kontokosta: �
Reference is made to your request for information regarding availability of public water service to the
above referenced property.
There is ai existing water main available to the above captioned property from County Rd 48.
Accordingiy, public water service for the parcel will be provided, in accordance with the rates and charges
applicable at the time of hook-up. If a main extension is required, you are responsible for paying the
costs of the extension and if appropriate, an easement must be provided�to SCWA.
This letter is not to be considered an action by SCWA as defined by the New York State Quality Review
Act regulations or a determination that the parcei is approved for building. You are responsible for
obtaining any other permits or approvals that may be required for the proposed project. SCWA shall not
be required to provide water for the project untii all required approvals have been obtained.
For connections to the public water system, there is a key money fee that must be paid in full prior to
taking service. The fee starts at $3000.00 per service for a one-inch service and is greater for larger
� services.
If you have any further questions, piease feel free to contact me at (631) 563-5610 or our New Service
Department at(631) 218-1148.
Sincerely,
Steve Romano � � �
Manager New Service '
SR:drh
PRINTED ON RECYCLED PAPER
. �
,
5uffolk County Department of Health Services �
Office of Ecolagy
S�x.ffclk CQuau!�Deparhnent of Healfh Services !
Water QuaIify Monitoring Dafiabase Notes �
�
Field/Paxameter ( Units/ForrnaE Remarks
Date _� mrnddyy � i
Statiori ###### The firse 3 digits represent the bay cade;the last 3 the stafion number �
�T.Coliform MPN/100 mI Totai coliform bacteria 3
�__ �_
F.Coliform Ml'N/100 ml Fecal coliform bacteria
NH3 mg/1 Arnmonia(filtered}
NO2 mg/1 Nitrite(fiitered) �
NO3 mgJl NitraEe(filtered)
NO2+NO3 � mg/I Nitrite+Nitrate{filtered) �
�TKN mg/1 Total Kjeldahl nitrogen � ;
ITDKN mg/I Total dissolved ICjeldahl nitrogen
TN� _ ._ ` � n'g/l TotaI nitrogen ---
_-.--•--- -�--•----1 �
;TDN mg/1 Total dissoIved nitrogen � �
TP04 mg/1 Total phosphate _ �� _^._i �
.. . ... -
TDP04 ' + mg/I Total dissolved phosphate •
}_...-�-�-------�------r---_____._.. ---------.__l
'o-PO4 mg/1 Ortho-phosphate(dissolved inorganic} � �
(.._..__.._..__.___._.._.�_._._ .____ --____
�TP mg/I Tofal phosphorus �-� ;
TDP � T��� mg/I Tota2 dissolved phosphorus T � �
r
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Notes: `
t
�'AlI nixtrienE values are computed as N,P,C,or Si. �
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*As of August 2Q00,Ehe Kjetdahi Nitrogen(TKN,TDICI�and Phosphate(TPU4,TDP04)analyses were repiaced wSth ;
procedures that yield Toeai Nitrogen(TN,TDN}and Total Phosphorus{TP,TDP). �
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m _ _���. _ :.L, �:...t�.
;., :..: .,. , ..,,
. . .:.
.:.,,. ;;:: r.
.._:,,<:. . . ,�„
:,:::.::. :,...�,:.,: ..�.. .:.....:.�
..;.. - �.;.�,;:.>-,�:,:�... .,�... �:.,::�<.
:..::. ....... ..�.,::::.:.>�., ....... ...._..,.. ...._..., .s<.:,�..-� .,......�:.w.::. ... - >-- �-
9119/96 Ammania 0.060 mgJL} �
�9/99/96 Dissoived Kjeldahl Nitrogen 1.10 mglL
9/19/96 �Dissolved €'haspha#e 0.054 mg/L
9I19/96 Fecal Colifarm 9000 MPN/100 ml ,
9/99/96 Nitrate � 0.005 mg/� �
9/19/96 Nitrite < 0.002 mg1L �
9I19/96 Total Coliform • 16000 MPN/100 ml �
9/19/96 . Total Kjeldahl Nitrogen 9.20 mgll. i
9/'19l96 Total Phosphate 0.089 mglL �
10116l96 �Ammonia 0.030 mg/L �
___10/16/96__ Dissolved Kjeldahl Nitrogen 0.88 mg1L _ �
10/16/96 Dissolved Phosphate 0.025 mgJL ' �
10/16/96 Fecal Coliform 300 MPN1100 ml _ ;
10/15/96 Nitrate { 0.005 mg/L �
+
10116/96 Nitrite � 0.002 mg/L ; ;
10/96l96 Total Coliform 3000 MPN/900 ml �
_ _10/16/96 _�Total Kjeldahl Nitrogen 1.00 mg/� _ �
10I16196 Total Phosphate 0.047 mg/L �
�..._..:.._...__.___...-----.._-- �
1212/96 Ammonia 0.013 mg/� f
12/2/96 i Dissolved Kjeldahl Nitrogen 0.93 mg/� T� �
_12/2/96 Dissalved Phosphate O.Q61 mg/l. i
1212/96 Fecal Coliform 3000 MPN/100 ml `
12/2/96 Nitrate 0.083 mg/L � � ' �
12/2196 Total Coliform 9000 MPN/100 ml
12/2/96 Total Kjeldahl Nitrogen 0.67 mg/L �
12/2/96 Total Phosphate 0.048 mg/L �
1/13/97 Ammonia < .005 mglL ;
1/13/97 Dissolved Kjefdahl Nikrogen 0.83 mglL i
1/93/97 �Dissolved Phosphate 0.040 mg/L
��.-----
� _._.1/93/97��Feca1 Caliform 20 MPNl300 ml ,
1/13l97 Nikrate 0.908 mg/L � _
1/93/97 Total Coliform 40 MPN/100 ml
�9/93/97 �Total Kjeldahl Nitrogen 1.50 mglL '
9/13/97 Total Phosphate 0.038 mg/l,
2/13/97 Ammonia < .02 mg/L �� :
2/13/97 Dissolved lCjeldah!Nitrogen 0.77 mg/L
2113/97 ;Dissolved Phosphate < .0� mg/l. �
� 2113/97 jFecal Coliform 40 MPN/100 m(
L_____.._' � �
L 2/13/97 Nitrate < .2 mg/L � .
Page 1 of 1'i �
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2I93197 Nitrite < p.02 mg/L �
2/13/97 Total Colifarm 40 MPNI140 ml
2/13197 Total Kjeldahl Nitrogen 0.73 mg/L
2/13l97 7otal Phosphate 0.018 mg/L
_4i10/97 Ammonia � .OZ mg/� �
__ 4/10/97 Dissolved Kjeldahl Nitrogen 9.fl5 mglL �
4/10/97 Dissolved Phosphate 0.�43 mgiL �
4l10i97 Fecai Coliform 80 MPNIIOQ ml �
_ 4/90/97 Nitrate < .2 mglL �
4/10/97 Nifrite < 0.02 mg/L �
___4/10/97_ Tota1 Goliform 190 MPN/100 mi s
! 4/10/97 ,7ata1 Kjeidahl Nitrogen 1.2Q mg/L ' €
f�-'----'....___._._-.� -•- F
4/10/97 iTotal Phosphate 0.044 mg1L
_,6I9197_ �Dissolved Kjeldahl Nifrogen 1.36 mg/� , i
. �_ 6/9197 � Dissolved Phosphate 0.106 rng/L �
6/9/97 FecaE Coliform 80 MPN/100 ml ;
� _6/9197 Totaf Coliform 80 MPNI1fl0 ml �
� 6/9l97 Total Kjeidahl IVitrogen 1.50 mg/L �
6/9/97 Totai Phosphate 0.130 mg/L �
9l22197 Ammonia 0,278 mg/L '
9J22197 Dissolved Kjeldah!Nitrogen 1.39 mglL �
�
9/22/97 Dissolved Phosphate O.Q48 mglL � #
__9122/97 Fecal CoEiforrn 230 MI'IV/100 ml � E
~ 9/22l97 � Nitrate& Nitrite � < .2 rngll. � t
�_9/22/97 Nitrite OA46 mg/L � �
9/22/97 Total Coliform 2400 MPNI100 ml � ;
— a
9/22/97 Tatal Kjeldahl Nitrogen 9.20 rng/L �
9/22197 Tatal Phasphate . 0.117 mg/L � §
3/18198 Ammania 0.054 mg/[. #
, _3/18198 _�Dissofved Kjeldah!Nitrogen 0.44 mg/� �
� 3118/98 �Dissolved Phospha#e 0.027 mg/L r
E.....--�----..._..— ____
3/98/98 Fecal Coliform 40 MPNI100 ml �
3/18198 Nitrate&Nitrite < p.2 mg/L �
�
�..._- 3/18198 Y fVitrite < O.d2 mg/L �
� 3/18i98 Total Coliform 110 MPN/100 m! � –�
3/18/98 Totaf Kjefdahl Nitrogen 0.26 mglL ;
3J18/98 Totai Phasphate 0.055 mgtL '
6/15/98 Ammonia 0.035 rng/L ,
6/15198 Dissolved Kjeldahl Nitrogen 1.09 mg/L �
6/95/98 Dissalved Phosphate 0.069 mgtL
� 6/15/98 �Fecal Caliform 220a MPN/100 ml �
' _ 6/15/98 Nitrate& Nitrite < 0.2 mg/L
6!9 5/98 Nitrike �. 0.02 mglL �
'_______ -._�_.y
_6/15198 _ :'fofal Coliform > 16000 MPN/1flQ ml _J
Page Z of 11
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� . _6/15/98 _ Tataf Kjeldahl fVitrogen 1.10 mgJL �
� _ 6(15/98 �i'otal Phasphate 0.075 mg/L
11J9/98 Ammonia 0.073 mglL
�-----------•
? __11i9/98__ Dissoived Kjeidahi Nitrogen 0.69 mg/L
� 11/9/98 Dissofved Phosphate 0.031 mg/L
19/9/98 Feca1 Colifarm 11d0 MPN1100 m!
��1/9/98 Nikrate&Nitrite < 0.2 mg/L �� -
` '11/9/98 Nitrite < OA2 mg/L �
11/9/98 Total Coliform 5000 MPNI100 mt i
11/9/98 Total Kjeldahl Nitrogen 0.92 mg1L j
_` 1919/98 Totai Phosphate 0.037 mg(� �
2/8i99 +Ammania < 0.02 mg/L
_�2/8/99 Dissolved Kjeldahi Nitrogen 0.81 mg/L �
_ _ 2/8l99 _Dissolved Phosphate O.q27 mg/L +�_ �
I2/8/99 Fecal Coliform 300 MPN/1Q0 ml i
_2/8l9�tVitrate&Nitrite < 0.2 mg/L �
I— -- .._..—._ �
_ 2/8J99 Nitrite � 0.02 mg/� _.._._.� E
218/99 �Total Coliform 800 MPN/100 mi j
2/8/99 Total Kjeldahl Nitrogen 0.88 mg/L � }
� 2/8/99� Total Phospha#e 0.032 mg/L _ � �
t...__.._..�._------ � I
4/20199 {Ammonia < 0,02 mg/L i !
�--------�-----_.....`._._____ ,
I 4/20/99 �Dissofved Kjeldahl Nitragen 1.18 mg(L '(
��4120/99 �Dissolved Phosphate 0.063 mg/L j
3
4/20i99 Feca)Colifarm SO MPN/10Q m!
4/20/99� Nitrate& Nitrite < 0.2 mglL �
4/2QI99 Nitrite < 0.02 mg/� �
_ 4/20/99 Total Coliform 270 MPN/'100 ml �
4/20l99 Total Kjeidahi Nitrogen 1.30 rng/l. i
4/20199 Y Tvtal Phosphate 0.075 mg/L ;
11/29i99 Ammania < 0.02 mg/L _ ^� �
11/29 9/ 9 Dissalved Kje{dahl Nitragen 1.51 rng/L I 4
__ __.. i
11/29/99 Dissoived Phosphafe 0.073 mgiL r
91/29/99 Fecal Coliform 80 MPN/10d mI �
-- --- --- i
� 11/29/99 Nitrate& Nit�ite 0.420 mg/L ;
-- �
11/29/99 Nitrite 0.021 mgiL
11/29/99 Total Coliform 800 MPNf100 ml
11/29/99 Total Kjeldahl Nitrogen 9.30 mgt�
_ 9.1/29/99 Totai Phosphate 0.071 mgll.
; 3/2l00^ Ammonia 0.076 mg/L
i 312l00 Dissoived Kjeldahl Ni#rogen 0.83 mg/L
____3/2/00__ Dissoived Phosphate O.Q52 mg/L �
,__ 3/2/00 Fecal Coliform { 20 MPNl100 ml _ `_j �
�_ 3i2/00 Nitrate& Nitrite < 0.005 mglL ��
3/ZI00 Nitrite < 0.42 mglL
Page 3 of 11
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3/2l00 Tatal Coliform 80 MPN/100 ml
3/2I00 Tota1 KjeidahJ Nitrogen 1.00 mgl�
3/2I00 Total Phasphate 0.078 mg/L
4l�0/00 Ammonia < O.Q2 mgJL ` �
4/10/00 Dissolved Kjeidahl Nitrogen 1.00 mg/L �
4/10100 Dissolved Phosphate 0.059 mg/L
� 4/10/00 Fecal Coliform 170 MPN/900 ml �
_ 4/10100 Nitrate&Nitrite Q.047 mglL. � i
�___�/10100 Total Coliform 700 MPN/100 ml _ �
4/10/00 Tota!Kjeldahl Nitrogen 0.97 mglL
, _�1/10/00 Tafal Phosphate Q.067 mglL �
5i26/00 �Ammonia 0.074 mg/L �
__._ 5l26/00 Fecal Caliform 500 MPN1100 ml �
--_ 5/26/00 Nitrate 0.108 mg(L �
_5/26100 Nitrite < 0.02 mg/L ;
' 5/26/00 Tptal Coliform . 1300 MPN/100 mf �
5/26/00 Total Kjeldahl Nitragen 'i.30 mg/� �
5/26/00 Total Phosphate 0.110 mgi� j
6/23/00 Ammonia 0.285 mg/� i
_ _.._ ,
6/23J00 Dissolved Kjeldahl Nitrogen 1.74 mg/L '
____6/23/00 Dissolved Phosphate � d.143 mg/L ;
6/23/00_ Fecai Goliform 500 Mi'N1100 ml j
( 6J23/00 �Nitrate < 0.2 mg/L � � s
i_.—__._.__�_ �
6/23/00 Nitrite 0.05�1 mg/�
i.___......._.__._ --. .._1
�_�&/23/Od 'Fotal Coliform 500 MPNl100 ml __( �
I 6/23/00 Totat Kjeldahl Nifrogen 2A0 mg/L I '
� 6/23100 Total Phnsphate 0.205 mg/L ^7 �
_9014/00 Ammonia 0.106 mg/L �
�_10/4/00_ Dissolved Nitrogen 0.73 mg/L ;
�__ 10/4/00 _Dissalved Phasphorous 0.045 mgiL �
` 1a���aa Feca!Coliform 3000 MPN/100 ml '
I 10/4/OQ Nitrate < 02 mglL . �
10/4/Q0 Nitrate& Ni#rite 0.165 mglL �
�--......__
� 90/4l00 Nitrite 0.038 rng/L ;
_1 pi4/00 Total Caliform 3000 MPN/100 mi Y
1014/00 Total Nitrogen 0.82 mg/L ��� !
-- '
�1014/00 Total Phasphoraus 0.071 mglL
_ 11i29/00 Ammania < O.a2 mglL ^
_ 19/29/00 Dissolved Nitrogen 0.55 mg/L. (
9�/29100 Dissolved Phosphoraus < 0.025 mgiL .
11129/00 �Fecal Coliform 230 MPNl100 ml
� 11I29/00�Nitrate 0.490 mg/L �
11/29/00 v Nitrite < 0.02 m /L �
�___� 9 �
�__ 11/29/QO Total Coliform 230 MPN/100 ml �
Page 4 of 19 �
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11/29/00 Total Nitragen 0.57 mg/� �
9�/29/00 Tatal Phosphorous OA38 mgJL
12I28/00 Ammonia 0.068 mg/L
12/28/00 D�ssolved Nitrogen 4.66 mg/L
�------
92/28/Op Dissolved F'hasphoraus 0.026 mglL � �
12/28/00 Fecal Coliform 40 MPlVi100 ml . j
! �2l28/00 . Nitrate < 0.2 mg/L —..i �
F...-__.�_ ---- �
12128/QQ Nitrite � 0.02 mg/L
12l28lC10 Tatal Cofiform 80 MPNI1Q0 ml �
�2/28l40 Total Nitrogen 0.66 mg/L
12/28/00 Tofal Phosphorous 0.030 mgtL �
3/29/01 Ammonia ' < p.02 mg/L i
3129/01 Dissolved Nitrogen 0.57 mg/L �
i 3/29/09 Dissolved Phasphorous 0.029 rng/� �
� 3/29J0� Nitrate < 0.2 mg/L I
� 3/29/01 ^ Nitrite � 0.02 mg/L �
� _ 3/29/01 ,_Totai Nitrogen 0.58 mg/L _ �
( 3129i01 Total Phosphorous 0.032 mglL ;
5115Ia1 +Ammania 0.163 mg/L �
-- — —_. �
__5/15/01 __ Dissolved Nitrogen 0.86 mglL ; ;
5l15/01 Disso{ved Phosphorous 0.07T mg/f� 3
�---------------•— — ;
5/95/01 IFecal Coliform 230 MPNi100 ml
5115/01 -.....+Nitrate � Q.2 mglL 3
-----5/�5/�9-�Nitrite 0.022 m /� •- 3
�.__._.�.�.� 9 �
5/15/01 Total Caliform 600 MPN/100 ml T �
5l15/p9 Tota!Nitrogen 0.85 mg/L j
5t15l01 Total Phospharous 0.091 mg1L
� 6/7/01 Ammonia 0.218 rng/L
6/7/01 - Dissalved Nitrogen 1.10 mg/L �
� 6/7/a1 Dissolved Phasphorous 0.120 mg/L 1
a
6/7/01 Nitrate < OZ mg/L ?
�!' 6/7!0'i ;Nitrite < 0.02 mg/L � �
6/7/01 �Total Nitrogen 1.1Q mg/L ~ __ ;
` 6/7/01 .--. 17ota) Phosphoraus 0.159 mg/L ' j
�----�---�--- ------�
8/21/0� �Ammonia a.145 mg/L j
8/21101 Dissolved Nitrogen 0.96 mg/L I
�_._.�- - ---- �
� 8/21/09 Dissolved Phosphorous Q.076 mg/L '
� 8/21/01 Fecal Coliform 5000 MPN/100 mi �
8/21/01 Nitra#e < p.2 mg/� !
�------_.___..-
I 8l21/4'I Nitrite < 0.02 mg/L :
I---------- _� .
I 8/21/01 _ Total Colifarm 16000 MPN/10Q ml ___ i
8/21/01 Total Nitrogen 0.99 rnglL �
i 8/21/01 Total Phosphorous 0.096 mg/L
�----- - -
�9/20/01 Ammonia 0.845 mg/L
___�___.� _ .
Page 5 of 19
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9120/01 Dissolved Nifrogen 1.00 mg/�
9/20/01 Dissolved Phosphorous 0.090 mglL
9/20/01 Fecal Caliform 800 MPN/100 ml
�__ 9I20/09 Nitrate&Nitrite < p,2 mgJL �� �
� 9/20I01 Nitrite < 0.02 mg/L �u� �
. 9/20/01 �Tota!Colifarm 1300 MPIV/100 ml _T. �
' -------�---
' 8/20/01 'Tatal Nitrogen. 1.00 mg/L ;
9/20101 ' Total Phosphorous 0.204 mg/L `� �
90l22/01 Ammania 0.121 rng/L
10/22/01 bissolved Nitrogen 0.66 mg/L j
_ 10/22/01 _ Qissalved Phosphorous 0.040 mgll. �
�� 9Qi22/01 Fecal Coliform 9700 MPNI100 mi �
----------- --
10/22/01 Nitrate& Nitrite < 0.2 mg/!.
(..........._.._....__-- — � �
� 90122/01 Nitrite < 0.02 mg/L ,
�-�--�----�-- -----
10/22/01 Total Coliform 5000 MPN/100 ml �
�.---=--....._....___._. .�_. .---
� 10/22/01_ i"ota!Ni#rogen 0.70 mg/L
'__10/22/01 Total Phosphoraus 0.076 mg/L � ___; �
_ 11/20/01 Ammonia 0.090 mg/L �
11t20101 Dissolved Nitrogen 0.71 mg/� �
11I20/01 Dissofved Phosphorous 0.086 mg/� j
11l20/d1 Fecal Coliform 700 MPN/900 m( �
!
11/20/09 Nitrate < 0.2 mglL �
11/20101 Nitri#e < 0.02 mgJL _ i
v11i20/0� Totat Colifarm 9000 MPN/100 ml i
------ �
11/20/01 Ta#al Nitrogen 0.72 mg/L �
11/20J01 Total Phosphorous 0.098 mglL
� 12I19/01 Ammonia 0.060 mglL �
12l19/01 Dissalved Nitragen 0.96 mg/L ^ � �
_.._.. .�__ �
12/�9J01 Dissolved Phospharaus 0.087 mg/L `
___12199/01 _ Fecal Coliform 2400 MPN/900 mi �
�___12/19I01 tVitrate < 0.2 mg/L � !
�
12/19/01 Nifrite { 0.02 rnglL i.
12I19/01 `Total Caliform 9000 MPN/�40 mf ;
92/'19/01 Tatal Nitrogen 0.98 mg/� � �
� 12/�9/01 7otai Phosphoraus 0.079 mg/� ;
� 2/14/02 Ammonia 0.028 mg/L �
2/14/02 Dissolved Nifrogen . 0.65 mgtL
2/�4/02 Dissoived Phosphorous 0.043 mg/L
► 2/�4/02 Fecal Coliform 11 Q MPNl100 ml
2J14102 Nitrate < 0.2 mglL '
2/14/02 Nitrite � � 0.02 mg/L i
! 2/14/02 Total Coliform 90d0 MPNJ100 ml
_ 2/94/02 Total Nitrogen Q.64 mg/L ^_ ;
2t14/02 Total Phasphorous 0.053 mg/L '
Page 6 of 91
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1/14/03 Ammonia < D.02 mg/L ;
�1/14l03 _ Dissolved Nitrogen 0.66 mg/L ^_ .V,
• 1/14l03 'Dissolved Phosphorous � 0.025 mg/L __� �
i---------- •-
9/14/03 Feca1 Coliform 20 MPN/100 m(
._..1/1�/03 Nitrate < 0.2 mg/l. ` �
� 1/14/03 �Nitrite < p.Q2 mg/L
1/14I03 Total Coliform 500 MPNi100 mt
1/�4I03 Total Nitrogen 0.67 mg/L
^�I14J03 Tota!Phosp3�orous < 0.025 mg/L
4/24/03 Ammonia < 0.02 mg/L �
4/24/03 Dissolved Nitrogen 0.84 mg/l.
4/24/03 dissr�lved Phosphorous 0.057 rngJL. �
4i24id3 Fecal Cofiform 80 MPN/100 ml I
�
4/24/03 �Nitrate < 0.2 mg/L � `
4t24/03 Nitrite < �.02 rng/� i i
�..._._.__._.�...__._� . _._
4124/�3 M 7ota!Coliform 230 MPN!'i00 ml __�� {
4/24/03 Tatal Nitrogen 0.73 mg/L {
� 4/24/03 Totaf Phosphorous OA58 mg/L ?
92/18/03 Ammonia 0.024 mg/L �
--• - ;
12/18/03 Dissolved Nitrogen 0.53 mg/�
12/18/03 Dissolved Phosphorous 0.076 rng/� �
12118/03 Fecal Coliform 16000 MPN/100 mI !
12/18/03 Nifrate < d.2 mg/L #
�.._..._.____.___._._ ---
12/18/03 ;iVitrike < 0.02 mg/L a
�. _-�-----------1— -•— ----�- -
i_ _12/18103 _ �Total Coliform 96000 MPN/100 ml �____1 ;
� �__....-�------ -
�;_ 12/18/03_ TTotaf Nitrogen 0.59 mg/L �
i 92/18l03 TTotal Phosphorous 0.063 mg/L __� ;
L___.__�.-- . � �
2l25/04 Ammonia 0.112 mg/L
_l �
2/25/04 Dissolved Nitragen 1.20 mg/t, i
2/25/04 Dissalved Phosphorous 0.043 mg/L �
2/25/04 Fecal Coliform < 20 MPN/100 rnl �
2/25/Q4 Nitrake � 0.2 mg/L �
2/25/04 Nitrite < 0.02 mg/L j
2/25/04 Total Coliform 110 MPN/100 ml � �
2/25104 Total Nitrogen 0.73 mglL '
�_.«_.._.�....�_.
__,. j
�- 2125104 To#al Phosphorous 0.047 mg1L ;
; ----3/29104---Ammonia < 0.02 mg/L �--�-- �
--.__.__.�...____._-� � --�--�--.......) '
! 3/29104 Dissolved Nitrogen 0.66 mglL i�
3/29/04 Dissolved Phosphorous 0.261 mg/L , 4� `
3/29lQ4 Fecal Coliform 20 MPN/10Q ml .
, 3/29l04 Nitra#e � 0.2 mg/L
� 3/29/04 �Nitrite < 0.02 mg/L ,
� 3129/04 Tatal Coliforrn 40 MPN/100 ml
3l29/04 Total Nitrogen 0.62 mg/L �
�—�-�------ --
Page 7 of 11 �
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^_ 3/29/04 Total Phosphorous 4.086 mglL �
4/29/04 Ammonia < 0.02 mgJL
4/29/04 Dissolved Nitrogen 0.88 mg/L
4/29/04 _ Dissalved Phosphorous 0.225 mg1L ;
4/29l04 Fecai Ca(iform 80 MPN/1Q0 ml j
�4/29/04 Nifrate < 0.2 mg/l. �
4l29/04 Nitrite < 0:02 mg/L
4/29l04 Total Caliform 130 MPN/100 mi !
_�_ ,
,^ 4/29/04 _Tota!Nitragen �.10 mg/L �
�_._ 5/27!{}4 _ Ammon asphorous 0.944 mg1L ��---
i __5/27/04 Dissoived Nitrogen 0.88 mg/L �
`_._ 5I27/04_ Dissofved Phosphorous 0.076 mg/� u �
5/27/04 Fecal Goliform 50q0 MPN/100 ml � ;
;
� 5/27/04 Nitrate � < 0.2 mg1L �
,._.__.___._._...._..__ _._�— _ �
5127/04 (Nitrite < 0.02 mglL �
5/27104 Total Coliform 8000 MPN/100 ml '
----------- �
5/27104 Tota! Nitrogen . 0.97 mg/L. S
5127/04 Total Phasphorous 0.073 mg/L ;
8/9/Q4 Ammonia 0.051 mg/L `
8J9/04 Dissolved Nitrogen 0.17 mg/L �
° _819/04 _ Dissolved Phosphorous 0.042 mglL � �
8/9/04 v Feca(Colifarm 2400 MPN1100 ml ;
8191Q4 Nitrate _ 0.336 mglL �
' 8/9/04 Nifrite 0.054 mglL � � (
.w�8/9/p4� Totaf Coliform 2400 MPN/100 ml �
8/9/04^ (Total Nitrogen 0.16 mg/� �
� 8/9/04 Total Phosphorous < Q.025 mg/� � � >.
�1/5/04 Ammonia < 0.02 mg/L i
---- �
__ 11/5/Q4 Dissolved Nitrogen 0.93 mg/L {
19l5JQ4 Dissolved Phosphorous 0.056 mglL ;
19/5/04 Fecal Coliform 1600p MFN/100 ml �
r�,._.�.�.,._.
�_ _ 11/5/04 Nitrate < 0.2 mg/� A_,� �
' 91/5/04 �Nitrite < 0.02 mg/L _� _ � �
IF 19/5/Q4 �Total Coliform 16000 MPN/100 m( � ;
- --------�--.._....- -�---�-
I.. _ 1115l04_ Total Nitragen_ 0.88 mg/L ---�-- �
.—�------ �---- :
' 11/5I04 Total Phasphorous 0.057 mglL ;
r 2/3/05~ Ammonia 0.050 mg/� ��
2/3/05 Ammania 0.450 mg/L 1
2l3105 Dissalved Nitrogen 0.60 mg/L
2I3/05 Dissolved Phosphorous fl.025 mg1L ;
2/3J05 Fecal Coliform 20 MPN/100 ml �
� 2/3/05 Nitrate � 0:2 mglL
__ 2/3105 . Nitrite < 0.02 mg/L '
Page 8 of 91
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� 2/3/05 Total Col9form 1300 MPIVl100 ml �
1---------------- ,
2i3/05 Total Nitrogen 0.55 mg/l. � �
__2/31�5 Total Phasphorous 0.035 mg/L ~
312105 Ammonia 0.040 mg/L ^_� �
�___3/2/05 _ _Ammania 0.040 mgiL
�...__._.312I05- ---�Dissoived Nitrogen 1.30 mglL ` ^ �
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!___ _.3/2/05_ _ �Dissoived Phosphorous < 0.025 mgJ[. �
�.-_--3/2/05__ _�Fecal Goliform 20 MPN/100 mi _ �
312i05 Nitrate 0.350 m !L �
�-----.__._.._.�__ g �
` ___ 3/2/05 Nitrite < 0.02 mg/L
3/2/05 Total Coliform 5Q0 MPNt100 m! �
312J05 Totai Nitrogen 1.10 mg/L �
3/2/05 Tofal phosphorous < 0.025 mg/L �
__ 3/30/05 Ammonia 0.040 rngiL �
_3/30/05 Ammonia O.Q40 mgll. �
� 3/30/05�Dissoived Nitrogen 0.51 mg/L. �
3(30/05 Dissoived Phospharous < 0.025 mg/L '€'
(� 3/30/05 ` Fecal Coliform 40 MPN/100 ml � �
----�--...------ 4
i 3/30/05 INitrate < 0.2 mgi� j
r-�---_...�_.._...__.....i__
; __ 3l30/05 ___Nitrite < 0.02 mglL ;
� 3130/05 Tota!Califarm 500 MANI1pA ml �
3/30/Q5 Totai Nitrogen 0.49 mg/l. `
� 3/30J05 Total Phosphorous 0.030 mg/� (
4/27/05� �Ammpnia 0.020 m /L.
�---__..----- � - �
�._.__4/27/06.___ Ammonia 0.020 mg/� e!
;__4/27/Q5 Dissolved Nitragen Q.93 mg/L _���..� [
..__.._ i
_4i27/05 Dissolved i'hosphoraus 0.079 mg/L �
� 4/27/05 `Fecai Coliform 300 MPN/�00 ml y 3
__4127/05 Nitrate < 0.2 mg1L � {
4i27/05 Nitrite � 0.02 mg/L �
4127/05 Total Coliform 2200 MPN/100 ml �
; 4/27(05 Total Nit�agen 0.94 mgl� �
,__.__..�___ _ ,
4___4/27/05 7otal Phosphorous 0.069 mgi� �
_ 6/1I05 _ Ammonia 0.257 mglL ;
6/1i05 � Ammonia Q.257 mg1L
_ 6/9l05 Dissolved Nitrogen 0.73 mglL ;
6/9/Q5 Dissolved Phosphorous 0.038 mg/L ;
6/1/05 Fecal Coliform 230 MPN/100 ml
6/1/05 Nitrate 4.371 mgiL
6/1/05 Nitrite OA22 mgiL
, � 6/1i�5 Tota1 Colifarm 230 MPN1100 ml ^y� ; ,
'.--'."6/1/05 �7otal Nitrogen 0.74 mg/l. .�..�_�~.
�....----��---� --_..__
i 6/�/05 ;Totai Phosphorous 0.036 mg/L
� _.11/15/05.__;Ammonia 0.060 mg/L _��____i �
Page 9 of'I 1 �
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_ 11/15/05 Ammonia 0.060 mg/� � �
'f 1/15/05 Dissolved Nitrogen 1.40 mg/L
�u_ 19/95iQ5 Disso(ved Phosphoraus < 0.025 mg/!.
11/15/05 Fecal Coliform 500 MPN/100 ml
_..�9 9/'f 5l05 'N itrate < 0.2 mgl� °
�11/15/05 __ Nifrite < OA2 mg/L �
11/95/05 Totai Coliform 1100 MPNI100 ml
11/15/05 Total Nitrogen 1.50 mgiL
11/15/05 Totai Phosphorous p,a57 mglL
�- --•_-------�-- ----�
2i23/06 Ammonia 0.07� mg/L i
__.___.�
2/23106 DissoEved Nitrogen 0.64 mglL Y �
�---�-� --�— — �
2I23/06 _ Dissoived Phosphorous < p.p25 mglL ;
2/23/06 Fecai Coliform 80 MPNl100 ml �
. ---1---�-
•. 2123/06 i Nitrate& Nitrite 0.195 mg/L
i_._-----�-�---- �
2/23/06 TNitrite < p.02 mgJL �
�I 2/23/06 Tatal Coliform 300 MPN/100 ml �
--�---..�.-----.._ __ , �
2J23i06 Tota!Nitrogen 0.64 mg/L s
�_..__.__.._.__,.__ .
f__ 2/23106 Totai Phosphorous < O.p25 rnglL a
3/20106 Ammania 0.040 mglL �
i
_ 3/20l06 Dissolved Nitrogen 0.59 mglL ;
__3/20/06 Dissolved Phosphorous < 0.025 mg/L �
- Y
3/20/06 Fecai Colifarm 20 MPN/100 ml ` � � S,
� 3t20/06 Nitrate 0.290 mg/L � #
3/24/06 Nitrite � 0.02 mg1L
� 3/20/06 T 7atal Coliform 130 MPNI100 m( !� �
_. 3120/06_ _ Total Nitrogen 0.60 mg/L � _� (
I_ _3t20/06 Tota) Phosphorous � 0.025 mg/� i
� --4/20/06 Ammania { 0_02 mg/L ---��� �
--•----; i
_.4I20/Q6 Dissolved Nitrogen 0.7Q mgiL
__4I20106 pissolved Phasphorous < 0.025 mg/L �
____4J20/06 ` Fecal Coliform 40 MPN/100 ml
_4/20/06 __ Nitrate 0.344 mg/L � � �
�-.---4/2Q/06 y Nitrite < 0.02 mg/L ;
4/20I06 •Total Caliform 970 MPN/100 ml �
^^4/20/Q6�.�_-. Tokaf Nitrogen 0.68 mg/� j
��--------- -- _._
_ 4/20/06 Total Phospharous � 0.025 mg/L ;
5/18/06 Ammonia 0.030 mg/L
5/98JQ6 Dissolved Nitrogen 0.67 mg/L � .
r---._ __.._�
____5/18/Q6 Dissa{ved Phosphorous 0.061 mg/L �
_5/18/06 _ Fecal Coliform 210 MPN/100 ml �
_5/18/06 Ni#ra#e 0.207 mglL
` 5/18(06 Nitrite < p.p2 mg/L ^�
5/18/06 Tota!Coliform 399 MPN/100 ml
6(98/06 1"otal Nitragen 1.00 mg/L �
Page 10 of 11
�
5/18/06 ,Total Phasphorous 0.082 mg/L �
12/5/06 Ammonia O.p70 mglL
12/5/06 Dissolved Nitrogen 0.65 mg/L
�.._.__.__._..`_---
�2/5/06 ,Dissofved Phosphoraus 0.059 mg/L
� 12/5/06 �Feca!Coiiform 260 MPN/100 ml �
i...._..._...__.__.__._---------
;_ ._.12/5l06 _�Nitrate < 2 mg/L �-----, �
� 92/S/06 jNitrite < OA2 mg/L �' �
--------------- ___....__.� �
_ 12/5/06 Total Colifarm 700 MPN/100 ml ^`_ �
12/5l06 Totai Nitrogen � 0.64 mg/�
12t5/06 Total Phosptroraus 0.063 mg/L j
_� ,
� 1/24/07 Ammonia 4.040 mg/L �
__9/24/07 Dissofved Nitrogen 0.76 mg/L �
__ 1/24I07^ Dissolved Phosphorous < 0.05 mg/l. �
__ 1/24/07 Fecai Coliform 2d MPN/100 ml _ t
� 1124/07 Nitrate 0.267 mgiL �
1/24l07 Nitrite < 0.02 rng/L . I
--------��---- — - —___..._.
� 'i/2�/O7 To#al Coliform 130 MPN1100 ml � �
�...._. ...__.._..............._._ _...___.------�1
1/24107 Total Nitrogen 0.82 mg/L :
.-.___ _....___._j r
__ 1 i24107� Total Phasphorous 0.056 mgiL _ � ;
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Page 11 of 11 �
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Suffolk Co�.nty Department of Hea1�h Services �
Office o� Ecology
S-arface�Vater Quality Moni�oring Database
�
Data Reliabilityf�.7is�laime� Staternent �
The attached water quality data has been collected and compiled by the Suffalk
County Depa:rtment of Healfh Services (SCDHS) during Ehe course of various �
environmental monitorin.g and rnanagement programs, and is provided to (
interested mexnbers of the public upon request. The informatian provided is (
both current and historical, and has been collected under a wide variety of �
sampling, analytical, and quality assurance regimes. Users should be aware that �
changes may periadically be made fo the data by the SCDHS, and that versions 4
forma�ly transmitted may ar may not�reflect these changes. �
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bVhile the SCDHS believes the data to be accurate and has made ,great efforts to �
assure its reliability af the time the information was compiled, fihe information is ;
pravided on an"as is" basis. Neither the Caunty af Suffollc nor the Depax�.ment �
of Health Services rnakes any Gvarranty, either expressed or implied, as to the i
accuracy, completeness, reliability, quality or usability of the anformation. Any ;
person having been transmitted this data or otherwise obtaining copies thereof, �
assumes all responsibili�y and risk for the accuracy and verification of �he �
inforrnation.
. �
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AIl recipients are requested to properly cite the data as follows: '
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Suffolk Caunty Deparhne�t of Health Services (SCDHS), yyyy. Surface �
wafier quality monitoring data prr�vided by the SCDHS C}ffice of Ecology, i
Yaphank,N.Y. ;
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Stephen M. Jones Administrative Offices: 4060 Sunrise Highway, Oakdale, New York 11769-0901
Chief Executive Otficer (631) 563-0219
� Fax (631) 563-0370
TO: United States Army Corp of Engineers
NYS Commissioner of Agriculture and Markets
NYS Secretary of State
NYS DEC, Division of Environmental Permits
NYS DEC, Region l, Regulatory Ai�airs
Suffolk County Departrnent�of Health Services, Bureau of Drinking Water "
Suffolk County Department of Parks
Suffolk County Department of Public Works
Town of Riverhead �
Town of Southampton
The Honorable Joshua Horton, Supervisor, Town of Southold
Riverhead Water District
Central Pine Barrens Joint Planning and Policy Commission
Long Island Railroad
NYS Environmental Facilities Corporation
Interesteci Parties
FROlVI: Stephen M. Jones, CEO . -
RE: Five Year Water Supply 1 for e Town of Southold
DA'TE: July 21, 2003
Please find enclosed the Findings Statement for the Suf�'olk County Water Authority's Five Year
Water Supply Plan Update for the Town of Southold. The Suffolk County Water Authority
Board authorized the release of the Findings Statement at its June 24, 2003 meeting.
Please feel free to contact my office if you have any comments on the proposed plan.
Enclosure
; „ , , .
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State Environmental Quality 12eview
FINIDINGS S�'A7CEMEN'�
Pursuant to Article 8 (State Environmental Quality Review Act - SEQRA) of the
Environmental Conservation Law and 6 N.Y.C.R.R. Part 617, the Suffolk County Water
Authority, as lead agency, makes the following findings.
Name of Action: Adoption of Five Year Water Supply Plan for the Town of Southold
Type of Action: Type I Action
Location: Town of Southold
Contact Person: For more information contact Timothy J. Hopkins, 4060 Sunrise Highway,
Oakdale,NY 11769, (631) 563-0236.
A encv Jurisdiction: Public Authorities Law Article 5, Title 4
Date Final EIS Filed: June 24, 2003
Description of Action: The DGEIS and FGEIS provided detailed analysis of difFerent options
that SCWA will consider when determining how to provide water for the residents of the Town of
Southold for the next five years. This Plan recognizes that SCWA will need to be flexible and
adapt to the changing conditions, both physical and regulatory, that affect how SCWA produces
water for the Town. The underlying assumption of this Plan, is that SCWA will be required to
serve those areas identified in the Water Service Area Map adopted by the Suffolk County
Department of Health, SCWA and endorsed by the Town of Southold.
Currently, SCWA aperates many small capacity wells within the Town. Extensive testing
indicates that are no areas in the Town that have the ability to support rarge capacity wells. In
addition, water quality trends indicate that treatment may be required on many if not ail of the
wells in the future. It is also necessary to anticipate regulatory changes that would require SCWA
to install treatment systems on many Southold wells to treat water that presently meets all
applicable standards. In addition, it appears that treatment systems may not be feasible to treat
some of the water quality issues encountered in the Town.
Selection of individual components of the Plan will depend upon the costs and benefits of
any particular option. The analyses offered in the DGEIS are intended to guide SCWA in
performing this balancing of options for the next five years. The options from which SCWA will
choose are discussed below.
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Findin�s:
A. Sufficient water exists in the Town of Southold to support full build out of the Town
SCWA finds that the aquifer system within the Town of Southold has a sufficient quantity
of water to provide for the Town of Southold even if the Town is developed to the fullest extent
allowable under current zoning. The DGEIS analyzed the hydrogeologic conditions of the Town
and reviewed studies of Leggette, Brashears, & Graham, ERM-Northeast, Camp Dresser&
McKee and development projections of the Suffolk County Department of Planning to detemune
whether a sufficient quantity of groundwater e�sts in Southold to serve the needs of the Town.
This review indicated that the required quantity e�sts. The study also noted that while a
sui�icient quantity groundwater exists, the quality of that groundwater is compromised. Thus,
SCWEi would need to install extensive and widespread treatment systerns throughout the Town if
it was to rely exclusively on the Town's groundwater resources to meet the Town's demands.
The impacts of relying solely on the Town's groundwater resources are significant.
B. SCWA can purchase water from the Town of R.iverhead Water District without having
significant environmental impacts
SCWA finds that, in accordance with the report prepared by H2M, the Riverhead Water
District consultant, if valves are installed on the water rnains on Pier Avenue, Manor Lane and
Herricks Lane, SCWA would be able to obtain up to 1,500 gallons per minute at the proposed
Sound Avenue interconnection. The proposed interconnection will require the installation of
appro�mately 8,300 feet of rnain on Sound Avenue from Cox Neck Lane to the Riverhead
system.
SCWA fiurther finds that there may be significant environmental impacts associated with
the construction of a water main along Sound Avenue for two reasons. If main is installed
between Cox Neck Lane and the Riverhead system the mains would front on parcels in
Agricultural District No. l. There is a potential that access to the public water within the mains
may encourage the conversion of farm parcels to non-farm uses. Second, the installation of the
main would be inconsistent with the Water Supply Map as discussed in the DGEIS. The Map,
adopted by the Suf�olk County Health Department, SCWA and endorsed by the Town of
Southold was intended to guide where water main service was to be provided.
SCWA finds that these impacts can be mitigated by designating these mains as
transmission mains and adopting a policy which prohibits parcels that are within Agriculturai
District No. 1 or undeveloped from connecting to the main. This policy would be consistent with
Agriculture and Markets Law §305, the mitigation measures discussed in the DGEIS and would
not have a significant impact on the groundwater resources. There would be no significant impact
on groundwater resources because as a requirement of service, SCWA would require that if an
e�sting unit presently served by a well wanted public water service that the well serving the unit
be disconnected. Thus there would be no additional withdrawal from the aquifer to serve to the
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newly connected unit. Another mitigation measure is the ability of the Town to designate new
areas on the Water Service Map with Health Department approval as eligible to receive public
water.
SEQRA regulations require that Generic Environmental Impact Statements identify what,
if any, additional approvals or environmental review would be required if the action proposed is
implemented. If SCWA establishes an interconnection with the Riverhead Water District, the
Town of Riverhead would need to approve the contract providing for the sale and may need to
approve a road opening permit. Road opening permits may be required from the County of
Suffolk and the Town of Southold as well. Because H2M determined that Riverhead has
additional capacity, further environmental review should not required if SCWA enters into a
contract with the Town.
C. SCWA can develop 2 wells at the Hallockville Museum Site without significant impact
to the environment
According to SCWA's consultant, Camp Dresser McKee, two wells withdrawing up to 1
million gallons of water per day could be operated at the site without significant adverse impact to
the Magothy Aquifer. The Hallockville site is approximately 0.5 miles from the Town of
Southold. If the Sound Avenue interconnection was established the water developed at this site
could be transmitted into the Southold system via those mains. If the mains were not installed,
SCWA could install mains within Sound Avenue.
There are two significant environmental impacts associated with developing the wells at
the site. The first is the visual impacts associated with developing the well and the second is the
same as the impact discussed in the preceding section.
SCWA finds that the visual impacts associated with the well can be mitigated in three
ways. First, if the chemical treatment building, which houses the equipment which treats the
water produced at the site. If located on site, SCWA can position the building behind an existing
building on the site. By locating the chemical treatment building behind an existing building, the
building will not be readily visible. Second, SCWA finds that if the chemical treatment building is
designed to resemble a farm building it will be undistinguishable from the existing buildings at the
site. Third, if SCWA has not interconnected with the Riverhead Water District, it could install
mains to transmit water directly from the Hallockville site to the SCWA facility at Laurel Lake.
.At the Laurel Lake facility, the water produced by the Hallockville well couid be treated in the
existing chemical treatment building. By transmitting the untreated water to Laurel Lake, both
impacts associated with the wells at the Hallockville site will be mitigated; first there would be
SCWA buildings at the site; and two, new interconnections could not be perrnitted to the main
along Sound Avenue because the water would not be treated for consump�ion purposes.
Prior to operating the wells at the Hallockviile site, SCWA would apply for the
appropriate perrnits from the New York State Department of Environmental Conservation. A site
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specific environmental review may be required as part of the permit process. If the installation of
mains is required, SCWA may need to obtain a road opening permits as described in the preceding
section.
SCWA finds that as an alternative, SCWA could purchase a parcel near the Riverhead-
Southold town line that is within the Town of Southold from which wells could be developed that
draw water from the Magothy aquifer. Developing these wells would require the same review as
required for the Hallockville wells.
D. SCWA finds there are beneficial impacts for maintaining some wells in the Town of
Southold
SCWA finds that there is sufficient groundwater within the aquifer system of the Town to
supply the Town's needs even at projected full buildout. However, while the quantity of water is
sufficient, the quality of much of the resource is compromised.
SCWA further finds that it is beneficial to have a system of wells in the Town as an
operational strategy. Operating wells in the Town allows SCWA to maintain multiple sources of
water which reduces reliance on a single source. By maintaining several sources of water, if one
source is temporarily unavailable water could be provided from other sources. By operating wells
in the eastern portion of the Town, SCWA does not need to move water from the western
portions of the Town to serve the eastern portion.
SCWA finds that treating water with elevated levels of chlorides is not feasible. The
technology e�sts to remove chlorides from water. Elevated chloride levels in production wells is
. usually associated with either lateral or vertical saltwater intrusion. Typically, SCWA lowers the
operating capacity of the affected well or discontinues its use. SCWA could build a desalination
facility but as noted by the DGEIS such facilities require large buildings, are costly to operate and
generate large amounts of waste. As a general policy SCWA would not develop treatment
systems to remove chlorides.
SCWA finds that the installation of granulated activated carbon filters to treated water
with elevated levels of VOCs and SOCs does not have a significant impact on the environment.
--When a well produces water which is high in VOCs or SOCs, an appropriate response would be
to install a granulated activated carbon filter unit on the well. SCWA is well versed on how to
install, operate and maintain carbon filters. SCWA has several units that can be instalied on a
temporary basis. Furthermore, the units are not enclosed within a building and thus do not
require the construction of a building which has permanent visuai impacts. Lastly, the carbon
within the units can be reactivated by a SCWA contractor who is responsible for disposing of the
waste generated by the unit in an appropriate manner.
To mitigate the visual impacts of the installing GACs units on Southold wells, SCWA
would install SCWA will install GAC filters on the largest capacity welis first.
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If the impacts to a well is not transitory, SCWA will investigate installing permanent
treatment within a specifically constructed building. When determining which wells to install
permanent treatment, SCWA will analyze the yield of the well and whether additional wells, an
site or off, could utilize the treatment systems. The goal would be to create treatment clusters
from which the water from several large capacity welis could be centrally treated. Economies of
scale could be realized by clustering treatment facilities without the widespread proliferation of
treatment systems. One candidate for this type of treatment facility would be the Kenneys Road
and Middle Road well fields in Peconic.
While most cost effective treatment systerns can be implemented for most chemicals of
concern, wells impacted by elevated nitrate or perchlorate levels present a�different set of issues.
It is very expensive to develop systems to treat water with high nitrate levels. Currently the most
efficient way to address elevated nitrate levels is to biend water with high nitrates with water with
lower nitrate levels. This solution presumes the existence of lower nitrate level water that can be
used for blending purposes. If such water is unavailable, SCWA may abandon the well. SCWA
finds that no new treatment systems for nitrates will be installed. SCWA also finds that the use of
the existing nitrate removal systenn at the North Road wellfield should continue. �
SCWA has detected perchlarate in 11 of the 30 wells it operates in the Town of Southold.
The combined actual capacity of the 30 wells is 4,195 gallons per minute (gpm). The�Urtited
States Environmental Protection Agency is considering lowering the drinking water standard for
perchlorate. It appears that EPA is analyzing the benefits and costs of different standards ranging
from 0 to 5 parts per billion. Current reliable detection limits, using state of the art laboratory
equipment is 0.5 parts per billion. If the EPA selects a level of 2.0 parts per billion or less, water
produced at 11 wells will not meet the revised perchlorate standard and wi11 not be useable by
SCWA. This represents a potential capacity loss of 2,800 gpm.
There are several options for removing perchlorate from groundwater. The DGEIS
analyzed each option. The simplest solution for treating water with perchlorate would be pass the
water through a GAC unit. However, caxbon filters are effective at removing perchlorate for oniy
short periods of time. When a GAC unit is used to treat perchlorate, the carbon needs to be
replaced frequently. Whereas, typically carbon is effective at removing VOCs ar SOCs for a
period of years, it will remove perchlorate for only several months before it is inei�ectual and the
carbon must be replaced. SCWA finds that site specific determination on whether to treat
perchlorate in a well should be made if and when a perchlorate levei in a well exceed standards.
This determination should include a balancing of the impacts and benefits of installing a
perchlorate treatment system.
E. Water can be transmitted from the Central Pine Barrens Region to the Town of
Southold without significant environmental irnpact
As the DGEIS analyzed there is a plentiful supply of water that is free of human-induced
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contaminants located to the west of the Town of Southold. Abundant supplies of high quality
groundwater lies beneath the Central Pine Barrens region. Since the passage of the Long Pine
Barrens Pratection Act of 1993 development in the region is regulated by the Central Pine
Barrens Joint Planning and Policy. SCWA finds that the water resources of the Central Pine
Barrens region far exceed the potential demand for them and represent a high quality source of
water for the residents of the Town of Southold.
SCWA has several options for bringing water into the Town. First, either a new well can
be developed to provide water for transmission into Southold or water from an existing well can
be transmitted. The DGEIS analyzed the impacts related to developing a well in Flanders that
would provide water to the Town. If a new well was developed, a New York State Department
of Environmental Conservation permit would be required. As part of the DEC application, well
specifc impacts would need be analyzed.
There are several potential impacts associated with bringing water to the Town of
Southold. First, there are construction impacts associated with installing a new main between the
Central Pine Barrens and the Town of Southold. Second, if a new wellfield is constructed, there
will be impacts associated with the construction of the wellfield. Third, there may be growth
inducing impacts.
SCWA finds that the construction impacts associated with installing the main and
developing the welifield can be mitigated through standard practices of SCWA. SCWA finds that
the preferred approach for the main would be along Peconic Bay Boulevaid. This approach will
minimize the impacts of the main construction and limit the installation of main to areas within the
Town of Southold that are designated to receive water services. The growth inducing impacts
and proposed mitigation measures are discussed below. Lastly, according to SCWA's consultant,
' Camp Dresser McKee, there would be negligible impact to the groundwater levels within the
Town of Southold by transmitting water from outside the Town to the Town and recharging the
same in the Town.
Approvals required include applying for and receiving a permit to operate a public water
supply well from the New York State Departrnent of Environmental Conservation, road opening
, permits from the County of Suffolk, the Towns of Riverhead, Southampton and Southold,
permission from the Long Island Railroad to cross its tracks in Riverhead, permission from the
U.S. Army Corp of Engineers and the New York Secretary of State to cross under the Peconic
River, a navigable water way and from the County of Suffolk if the main is installed within Indian
Island County Park.
Site specific environmental review would be required if new wells are proposed.
F. Mitigation Measures
The DGEIS examined several different measures which could be implemented by SCWA
6
or other agencies to mitigate the impacts associated with adopting a water strategy for the Town
of Southold. Mitigation measures analyzed by the DGEIS fall within three general groups.
The first group concerns the practical issues on how to provide high quality potable water
to the Town's residents. These measures include: (a)treating the water produced at existing
SCWA welifields, (b)transmitting water produced outside the Town of Southold to serve
Southold, (c) implementing an Agricultural Watershed Program to encaurage low impact
agricultural uses near existing wellfields which will lessen the potential for agricultural practices
from affecting the quality of the groundwater produced by the well and (d) purchasing and
transmitting water from Riverhead Water District.
The second group were methods for reducing the growth inducing impacts of increasing
the amount of water ava'rlable within the Town. These measures include: (a) eliminating SCWA's
75 foot rule allowance for projects converting agricultural lands, (b) analyzing the opportunities
afforded by the Agriculture and Markets Law to prevent the conversion of agricultural district
lands to non-farm uses, (c) advocating for purchases of additional agricultural lands and
development rights from farms within the Town of Southold from various sources, (d) supporting
the renewal of Agricultural District Number l, and (e) implementing recornmendations of Suffolk
County Agricultural Protection Plan.
The last group analyzed methods for reducing the demand for water within the town.
These measures encouraged the Town of Southold to: (a) impose mandatory restrictions on
irrigation dependent vegetation and clearing amounts, (b) require the installation of water saving
devices, (c) implement a non-contiguous cluster program allowing development rights to be
transferred within the Town, (d) encourage other uses for non-contiguous cluster rights and (e)
require mandatory clustering and conservation subdivisions.
Facts and Conclusions in the EIS Relied U�on to Support the Decision:
I. PLTRPOSE.NEEDS AND BENEFITS
SCWA is at a critical juncture in supplying water to its customers in the Town of
Southold. Presently, SCWA operates a system that relies on a series of low capacity shallow
wells that draw water from an aquifer lense that has large amounts of water of comprornised
quality. The quantity of water within the aquifer is sufficient to supply the entire Town, even at
full build out. Relying solely on the Southold aquifer will require that SCWA develop more
shallow capacity wells and initiate a program of installing treatment facilities on every well. Such
a program would include impacts to the visual resources of the Town, waste disposal and fiscal
impacts.
SCWA is proposing to adopt a Plan to supplement the existing SCWA system with water
sources that do not require significant treatment. SCWA will attempt to create more
interconnections between the largely independent Southold system and the largely interconnected
7
water distribution system to the west.
The benefits of the proposal are numerous. First, SCWA would not be dependent on the
shallow low capacity wells but rather those wells would be buttressed by a supply of water that
does not require extensive treatment. Second, the amount of water within the Southold system
would be increased. This would provide for additional fire protection and allow for main
extensions to serve areas identified by the Town and the SufFolk County Health Departrnent
including the Health Department priority areas. Third, because these new water sources are
outside the Town of Southold fewer laxge systems can be installed. Lastly, by selecting from the
range of alternatives identified in the DGEIS, SCWA can design a system that minimize
environmental impacts.
II. GROWTH INDUCING IMPACTS
It has been alleged that the introduction of public water into areas that were previously
unserved encourages development. While the point is debatable, the Town of Southold controls
development in the Town. SCWA can however shape the manner in which land is developed
through the adoption of watershed rules and regulations that must be approved by the New York
State and Suffolk County Hea.lth Departments. SCWA encourages agencies with jurisdiction over
land use issues to analyze development trends in the Town and engage in planning efforts to tailor
future development in a way that meets the Town's objectives and preserves and protects the
aquifer.
The DGEIS identifies several measures that can be enacted to prevent the conversion of
farmland to non-farm uses. These measures�include eliminating SCWA's 75 foot rule allowance
for projects converting agriculturallands. SCWA currently has a pravision by which it grants an
allowance of 75 feet of free water main for residential units which are not located on an existing
main. The applicant receives an allowance equal to the installation of 75 feet of water rnain as
part of the SCWA's e�ctension of mains to serve the applicant's house. SCWA could eliminate
this allowance for main extensions that involved the conversion of agriculture lands to residential
development and mitigate growth inducing impacts.
Second, if SCWEi or a governmental unit was to fund the provision of public water to
non-farm structures within the Agricultural District, Agriculture and Markets Law requires that
SCWA or other entity demonstrate that the proposed action minimizes adverse impacts on
agriculture. This demonstration would take the form of a study that analyzes the proposed
project, its impacts and the reasonable alternatives. The Commissioner of Agriculture is
empowered to restrain a public entity from funding the project if adverse impacts to the
Agricultural District could occur and require the entity to act in a manner consistent with one of
the alternatives analyzed or the Commissioner may select another alternative that would minimize
the adverse impacts to the District. If mains were installed in front of Agricultural District
parcels, SCWA could designate the mains as transmission mains and not permit service
connections to the mains.
8
SCWA encourages Suffolk County to continue the purchase of lands that are within the
Southold Special Groundwater Protection Area pursuant to the Suffolk County Drinking Water
Protection Program. Under this program, revenues from a special sales and compensating use tax
of 1/4 of 1% provide funding for sewer district tax rate stabilizatian, environmental protection and
property tax mitigation. Within the environmental protection category funds can be expended, for
among other things, the purchase of lands within SGPAs, the purchase of lands that are necessary
far maintaining the quality af surface and/or groundwater. Additionally, the program provides
funds for the purchase of farmland development rights. The purchase of farmland developrnent
rights ensures that farms generating the development right cannot be converted to non-farm uses.
Suffolk County can also make purchases of farmland development rights pursuant to the County's
Community Greenways Fund.
SCWA advocates the renewal of Suffolk County Agricultural District Number 1 which
expires in 2003. Pursuant to the Agriculture and Markets Law, the Suffolk County Legislature
can continue, modify or terminate the district upon reports of the County Agricultural and
Farmland Protection Board and the County Planning Department pursuant to Agriculture and
Markets Law Section 303-a. The County could recommend that the District be extend for either
12 or 20 years as pernutted by the law rather than eight years and work to add more properties to
the District.
Lastly, if the recommendations of the Suffolk County Agricultural Protection Plan were
implemented the potential for the conversion of active farmland to non-farm uses would be
lessened.
SCWA encourages the Town to implement measures that would reduce the demand for
public water in the Town. SCWA estimates that during the winter months approximately 10% of
its wells are in use to meet the demand for water. In contrast, in the summer months SCWA
operates nearly every one of its wells to meet demand. The increased demand is largely
attributable to irrigation system use. If the demand for water could be curtailed, SCWA would
not have operate its system at full capacity, it would allow more water to be available for fire
protection and would reduce pressure peaks and drops that occur concurrently with periods of
high water demands.
There are several methods that the Town can adopt to reduce water dernand. Southold
could adopt a local law permitting the irrigation of oniy 15% of any lot area. The restrictions
could be incorporated into any building permit issued by the Town. By encouraging the retention
of native areas, limiting clearing and restricting the amount of irrigation that could be operated on
a specific parcel, demand for public water could be reduced. Implernentation of this
recommendation would be consistent with the recommendations of the Special Groundwater
Protection Area Plan and would be further protective of groundwater quality than upzonings to 5
acres alone. The restrictions could take the form of covenants and restrictions imposed by the
Town in reviewing all future subdivision and building permit applications.
9
Second, the Town could require new buildings to install water saving devices, such as low
flow faucets and toilets. These devices would reduce water consumption in the Town.
Third, an opportunity exists for the Town to harness the market forces on the
development of undersized, according to current zoning, infill lots to protect lands it identifies as
"critical" through the creation of a non-contiguous cluster program. Under the program, the
potential developer of the infill parcel that has less area than current zoning requires, would be
required to acquire a right before the infill lot could be developed. The right would be allocated
to an owner of a critical paxcel based on the critical parcel's current zoning. The rights would be
allocated only after the owner of the critical parcel makes a promise in the form of an easement to
maintain a specific land use on the criticai parcel. These rights would have significant value by
allowing otherwise undevelopable lots to be developed.
The amount of rights that would have to be redeemed before an undersized parcel could
be developed would be equal to the difference between the area of the infill parcel and the amount
of area required by infill parcel's current zoning. As an example, an 10,000 square foot parcel in
an area that requires 40,000 square foot of area would need to acquire 30,000 square feet of
development rights.
Adoption of this program would be advantageous to SCWA for three reasons. First, infill
lots are generally located in areas of existing water mains. Thus 5CWA would not be required to
install large main extensions to serve new development within the Town. Second, as development
rights are purchased from critical lands, which could include farm lands, the potential for
conversion of farmland would be reduced. Third, the reduction in the conversion of such parcels,
would lessen demand for lengthy main extensions into agricultural areas, which would make the
cost for converting other farmland to non-farm uses lower.
The Town could require the Zoning Board of Appeals to require the redemption of non-
contiguous cluster rights in three instances. The rights could be required whenever an undersized
lot is proposed for development. The amount of rights required would be equal to the difference
in the undersized parcel size and the area requirements of current zoning. The Zoning Board of
Appeals could require the redemption of rights before allowing a previously merged lot to be
unmerged. Lastly, Zoning Board of Appeals could be prohibited from granting lot splits that
result in the creation of undersized parcels without the redemption of non-contiguous rights.
The Town could adopt local laws requiring mandatory clustering and conservation
subdivisions to rninimize the destruction of farmland and woodlands which would reduce the
amount of run-off and recharge of degraded water to the aquifer. Conservation subdivisions
lessen the total potential demand for public water by reducing the number of units that could be
built.
10
CERTIFICATION OF FINDINGS TO APPROVE/]�[JND/(T1VI�ERTAKE
Having considered the Draft and Final EIS, and having considered the preceding written
facts and conclusions relied upon to meet the requirements of 6 N.Y.C.R.R. Part 617.1 l, this
Statement of Findings certifies that:
l. The requirements of 6 N.Y.C.R.R. Part 617 have been met;
2. Consistent with the social, economic and other essential consideration from among
the reasonable alternatives available, the action is one which avoids or minimizes adverse
environmental effects to the rna�mum extent practicable, and that adverse environmental impacts
will be avoided or minimized by incorporating as conditions to the decision those mitigative
measures which were identified as practicable; and
3. If a State agency is making a final decision in the coastal area, that the agency has
made a written finding that the action is consistent with the waterfront revitalization program to
the maximum e�ent practicable. �
SUFFOLK COUNTY WATER AUTHORITY
Name of Lead Agency
Chief Executive Officer
S' a r f esponsible Officer Title of Responsible Official
Stephen M. Jones 7uly 21, 2003
Name of Responsible Of�icial Date
4060 Sunrise Highwav Oakdale New York 11769
Address of Agency
11
, �- ; .
' US Army`Engineers Dist N.Y. �'� Ken Rydzewski NYS Comm. of Ag. & Markets
Eastern Permits Section LIlZR-Hillside Maintenance Comp. Attn: Kim Blow
Jacob J. Javits Federal Building �3-59 183rd Street 1 Winners Circle
New York, NY 10278-0090 Ho11is, N.Y. 11423 Albany, NY 12235
NYS DEC, Region l, Reg. Affairs NYS Secretary of State SC Dep't of Health Services,
Building 40 41 State Street Bureau of Drinking Water
SUNY @ Stony Brook Albany, NY 12213 220 Rabro Drive East
Stony Brook, NY 11790-2356 Hauppauge, NY 11788
SC Dep't of Parks, Recreation and SC Dep't of Public Works Town of Riverhead
Conservation 335 Yaphank Avenue 200 Howell Avenue'
P.O. Box 144 Yaphank,. NY 11980 Riverhead, NY 11901
West Sayville, NY 11796
Town of Southampton The Honorable Joshua Horton Mr. Gary Pendzick
116 Hampton Road Town of Southold R.iverhead Water District
Southampton, NY 11968 P.O. Box 1179 1035 Pulaski Road
Southold,NY 11971 Riverhead, NY 11901
Central Pine Barrens Joint Planning NYS Environmental Facilities Corp. Mr. Biil Spitz
and Policy Commission 625 Broadway NYS DEC, Region 1
P.O. Box 587 Albany, NY 12207-2997 Building 40, SIJNY Stony Brook
Great River, NY 11739-0587 Stony Brook, NY 11790-2356
Mr. Vito Minei Ms. Valerie Scopa.z NIr. Tim Caulfield
SC Dep't of Health Services, Town of Southold Peconic Land Trust
220 Rabro Drive East P.O. Box 1179 P.O. Box 1776
Hauppauge, NY 11788 Southold, NY 11971 Southampton, NY 11969
The Nature Conservancy Long Island Builders Institute North Fork Environmental Council
P.O. Box 5125 400 Corporate Plaza P.O. Box 799
East Hampton, NY 11937 Islandia, NY 11722 Mattituck, NY 11952
Mr. Tim Kelly Long Island Farm Bureau Mr. Tom Williams
The Suffolk Times 104 Edwards Avenue Cornell Cooperative Extension
P.O. Box 1500 Calverton, NY 11933-1601 246 Gri�ng Avenue
Mattituck, NY 11952 Riverhead, NY 11901
Mr. Dennis Kelleher NYS DEC
H2M Group Division of Environmental Permits
575 Broad Hollow Road 625 Broadway
Melville, NY 11747 Albany, NY 12233-1750
I)RAI�'�GENERIC ENVIltONM�NTAI.IlVIPA.C'Y' S'g"ATEIViElVT
FOAt
Five Year Water Supply Plan Update
;ocation �
Town of Southold, County of Suffolk
Lead Agencv
Suffolk County Water Authority
4060 Sunrise Highway, Oakdale,New Yoik 11769
Contact: Legal Department
631-563-0226�
Prepared BX
Suffolk County Water Authority
405C-�unrise Highway, Oakdale,Nevv �ork 11769
r
� Date Accepted
Apri129, 2003 '
Date Comments 1Vyust Be Submitted Bv
June 6,•2003
Table of Contents
I. Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
A. Description of the Proposed Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
B. Significant Beneficial and Adverse Impacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
C. Mitigation Meas.ures Proposed . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
D. Alternatives Considered . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
E. Matters to Be Decided . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
II. Description of the Proposed Action . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
A. Project Purpose,Need and Benefits; 5ocial and Economic Considerations . . . . 11
l. Background and History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2. Public Need for the Project . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3. Objectives of the Project Sponsor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
4. Benefits of the Proposed Action . : . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5. Social and Economic Considerations . . . . . . . . . . . . . . . . . . . . . .�. : . . . 13
B. Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1. Geographic Boundaries of Project . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2. Access to the Project Site . . . . . . . . . . . . . . ... . . . . . . . . . • . . . . . • • • . 13
C. ProjectArea . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
1. Tota1 Site Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2. Public Water Supply Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3. . Community Character . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4. Town of Southold Subdivision Moratorium . . . . . . . . . . . . . . . . . . . . . . 14
D. Jurisdiction And Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . : . . . . . . . . . . . 15
� 1. U.S. Army Corp ofEngineers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2. New York State Commissioner of Agriculture and Markets . . . . . . . . . 15
3. New York State Department of Environmental Conservation . . . . . . . . 15
4. New York Secretary of State . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5. New York State Environrnental Facilities Corporation . . . . . . . . . . . . . 15
6. County of Suffalk . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .'. . . . . . . . . 16
7. Town of Riverhead . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
� S. Town of Southampton . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
9. Town of Southold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
10. Riverhead Water District . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
11. Central Pine Barrens Joint Planning and Policy Commission . . . . . . . . . 16
12. Long Island Rail Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
III. Environmental Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1?
A. Present Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
1. Number of customers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : . . . . . . 1�
2. Miles of main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
3. Wellfields . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2
a. Water quality and existing treatment . . . . . . . . . . . . . . . . . . . . . 17
�`�- 4. Drinking Water Quantity and Pumping Trends . . . . . . . . . . . . . . . . . . . 17
B. Land Use and Demographics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
1. Land use . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
2. Demographics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
a. Current Population . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
-�a. Projected population a�-satu:ation . . .�. . . . . . . . . . . . . . . . . . . . l�-
C. HydrogeologY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2. Amount of water that can be developed on the North Fork . . . . . . . . . . 19
D. Potential Conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
l. Number of potential units within Water Service Area . . . . . . . . . . . . . . 22
a. Methodology . . . . . . . . . . . . . . . . . . . . . . . . : . . . . . . . . . . . . . . 22
b. Projected number of units that could be developed . . . . . . . . . . 23
c. Estimated number of e�sting units without public water . . . . . . 23
2. Number of potential units outside the Water Service Area . . . . . . : . . . . 23
a. Methodology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
b. Projected number of units that could be developed . . . . . . . . . . 23
� c. Estimated number of existing uruts without public water . . . . . . 24
3. Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
E. Potential Conditions_-Water�Quantity_ ret�uirecL-under different buildout scenarios
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
l. Water Service Asea . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
2. Entire Town . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
3. Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
F. Potential Conditions- Trends of Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . 27
IV. Alternatives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
A. Water treatment at e�sting SCWA wellfields . . . . . . . . . . . . . . . . . . . . . . . . . . 29
1. Ion Exchange Resin Technology with on site regeneration to treat for
perchlorate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
a. Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
b. Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
c. Operating Costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
d. Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
2. Ion Exchange Resin Technology with off site disposal to treat for
perchlorate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
a. Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
b. Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
G. C05t . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3�
d. Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
3. Grranulated activated carbon treatment systems . . . . . . . . . . . . . . . . . . . 31
a. Requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3
b. Contaminants efFective at removing . . . . . . . . . . . . . . . . . . . . . . 31
c. Cost of system . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . . . . . . . 31
d. Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
4. Membrane Filtration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31.
a. Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
�, Contaminants effe.ctive at remeving. . . . . . . . . . . . . . . . . . . . . . . �2
c. Capacity of system . . . . . . .'. . . . . . . . . . . . . . . . . . . . . . . . . . . 32
d. Cost of system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
e. Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
5. Desalination of Seawater Using Membrane Filtration . . . . . . . . . . . . . . 32
� a. Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
b. Contaminants effective at removing . . . . . . . . . . . . . . . . . . . . . . 33
a Capacity of system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
d. Cost of system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
e. Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
6. Desalination ofBrackish Water Using Membrane Filtration . . . . . . . . . . 33
a. Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
b. Contaminants effective at removing . . . . . . . . . . . . . . . . . . . . . . 34
c. Capacity of system . . . . . . . ... . . . . . . . . . . . . . . . . . . . . . . . . . 34
d. Co�of system.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
e. Approvals required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
f. Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34 ,
7. Point of Use Filtration Systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
a. Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34
b. Contaminants effective at removing . . . . . . . . . . . . . . . . . . . . . . 34
c. Capacity of system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
d. Cost of system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : . . . 35
e. Approvals required . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
8. Water, Water Quality Treatment and Water Supply District . . . . . . . . . 3 S
9. Underground Injection Wells to Dispose of Waste Generated by Treatment
Facilities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
a. ' Technology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
b. Cost of system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
c. Legalauthority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
10. Other Disposal Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
11. Treatment of water with high nitrate levels . . . . . . . . . . . . . . . . . . . . . . 37
B. Develop new water sources within the Town . . . . . . . . . . . . . . . . . . . . . . . . . . 37
1. North Road, Greenport . . . . . . . . . . . . . . . . : . . . . . . . . . . . . . . . . . . . . 38
2. Laurel Lake West, Laurel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
3. Alvahs Lane, Cutchogue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4. Middle Road, Peconic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . '. . . . . . . . 38
C. Transmission of water produced outside the Town of Southold to serve Southold
� . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38
4
1. Proposed Flanders Wellfield . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
a. Proposed wells at Flanders Property . . . . . . . . . . . . . . . . . . . . . 39
b. Cost analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
i. Cost to develop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
ii. Replacement cost based on 2002 dollars . . . . . . . . . . . . 40
c. Life Expectancy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
�: Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
2. Potential Routes -Flanders to Southald . . . . . . . . . . . . . . . . . . . . . . . . 40
a. Route 1 -Peconic Bay Boulevard . . . . . . . . . . . . . . . . . . . . . . . 40
b. Route 2-Main Road . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
c. Route 3 - Sound A�enue . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
3. Flanders Transmission Main Issues . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
a. Main capacity and retention time . . . . . . . . . . . . . . . . . . . . . . . . 41
b. � Cost analysis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
i. Capital Costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
u. Operation and Maintenance Cost . . . . . . . . . . . . . . . . . . 42
c. Expected life span of transmission mains . �. . . ... . . . . . . . . . . . . 42
4. Other potential wellfields . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . . . 43 �
a: Hallockville Museum Farm site, Hallockville . . . . . . . . . . . . . . . 43
b. Design . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
D. Pu�chase_a.�d Tra!�smission of water from Riverhead!�l_ater District . . . . . . . . . 43
l. Supplying water developed in the Water District to SCWA Southold
system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
2. SCWA supply of water to Riverhead Water District and Water District
supply to Southold system. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
a. SCWA connection at Hubbard Avenue . . . . . . . . . . . . . . . . . . . 45
b. SCWA connection at Main Road . . . . . . . . . . . . . . . . . . . . ... . . 45
c. SCWA connection at Northville Turnpike and County Road 105
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
3. Installation of new well within Riverhead Water District . . . . . . . . . . . . 46
E. Conservation Programs and Potential of Reduced Dernand . . : . . . . . . . . . . . . . 46
F. No action alternative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
V. Impacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
A. Short term and long term, cumulative impacts . . . . . . . . . . . . . . . . . . . . . . . . . . 48
1. Water treatment at existing SCWA wellfields . . . . . . . . . . . . . . . . . . . . 48
a. Short term irnpacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
b. Long term impacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
c. Cumulative impacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
2. Develop new water sources within the Town . . . . . . . . . . . . . . . . . . . . 49
. a. Short term impacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
b. _, Long term impacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
c. Cumulative impacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
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3. Transmission of water produced outside the Town of Southold to serve
Southold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
a. Shart tezm impacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
� b. Long term impacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
� i. Water transmitted from the Pine Barrens . . . . . . . . . . . . 50
ii. �xl_at�xtransmitted�o:::-l�ia?lockv,ille Museum-�'arm site
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
c. Cumulative impacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
4. Purchase and transmission of water from Riverhead Water District . . . . 52
a. Short term impacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
i. Supplying water developed in the Water District to SCWA
Southold system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
ii. SCWA supply of water to Riverhead Water District and
Water District supply to Southold system . . . . . . . . . . . . 53 .
iii. Installation of new well within Riverhead Water District
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
b. Long term impacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
� c. Cumulative impacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
5. . Water,Water Quality Treatment and Water Supply Districts . . . . . . . . . 53
6. No_�ction alternative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54.
a. Shori ierm impacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
b. Long term impacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
B. Adverse environmental impacts that cannot be avoided . . . . . . . . . . . . . . . . . . . 54 `
1. Water treatment at existing SCWA wellfields . . . . . . . . . . . . . . . . . . . . 54
2. Develop new water sources within the Town . . . . . . . . . . . . . . . . . . . . 55 .
3. Transmission of water produced outside the Town of Southold to serve
Southold including purchasing water from Riverhead . . . . . . . . . . . . . . 55
4. No action alternative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
C. Irreversible and irretrievable commitrnent of environmental resource . . . . . . . . . 55
1. Water treatment at existing SGWA wellfields . . . . . . . . . . . . . . . . . . . . 56
2. Develop new water sources within the Town . . . . . . . . . . . . . . . . . . . . 56
3. Transmission of water produced outside the Town of Southold to serve
Southold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
4. No action alternative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
D. Growth inducing impacts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56
E. Impact on use and conservation of energy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
1. Water treatment at existing SCWA wellfields . . . . . . . . . . . . . . . . . . . . 58
2. Develop new water sources within the Town . . . . . . . . . . . . . . . . . . . . 58
3. Transmission of water produced outside the Town of Southold to serve
Southold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58
4. Purchase and Transmission of water from Riverhead Water District . . . 59
5. No action alternative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
F. Impact on and Consistency with Special Groundwater Protection.Area Plan,
�
6
Critical Environrnental Areas, Water Supply Management&Watershed Protection
Strategy and Section 305 of the Agriculture and Markets Law . . . . . . . . . . . . . 59
l. Special Crroundwater Protection Areas . . . . . . . . . . . . . . . . . . . . . . . . . 59
a. Southold SGPA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60
b. Central Suffolk SGPA North . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
c. Central Suffolk SGPA South . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
2. Critical Environmental Areas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
J � 3: Water Supply Management&Watershed Protection Strategy . . . . . . . . 62
4. Agriculture and Markets Law . . . . . . . . . . . . . . . . . . . . . . . . . . . . . : . . 63
a. SCWA actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
b. Action by private individual within Agricultural District . . . . . . . 63
VI. Mitigation Measures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
A. Water treatment at existing SCWA wellfields . . . . . . . . . . . . . . . . . . . . . . . . . . 65
B. Transrnission of water produced outside the Town of Southold to serve Southold
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 65
C. Purchase and Transmission of water from Riverhead Water District . . . . . . . . . 65
D. `Opportunities for Preserving Agricultural Lands . . . . . . . . . . . . . . . . . . . . . . . 66
1. Eliminate SCWA's 75 foot rule allowance for projects converting
agriculturallands . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
2. 1�gricultural Watershed Program . . . . . : . . . ._ . .. _ . . . . . . . . . . . . . . . . 66
3. Opportunities afforded by the Agriculture and Markets Law . . . . . . . . . 67
{ a. Government and Public Benefit Corporation actions . . . . . . . . . 67
b. Action by individuals within Agricultural District . . . . . . . . . . . . 67
4. Opportunities for County of Suffolk . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
� a. Purchase additionallands and development rights from farms within
the Town of Southold . . . . . . . . . . . . . . . . . . . . . . . . . . . .•. . . . 67
i. Suffolk County Drinking Water Protection Program . . . 68
ii. Community Greenways Fund . . . . . . . . . . . . . . . . . . . . . 68
b. Continue Agricultural District Number 1 . . . . . . . . . . . . . . . . . . 68
. ' c. Implement Recornmendations of Suffolk County Agricultural �
Protection Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
E. Uther Opportunities for Mitigating Impacts . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
1. Mandatory Restrictions on Irrigation Dependent Vegetation and Clearing
Amounts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68
2. Mandatory Water Saving Devices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
3. Non-contiguous cluster program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69
a. � Development of undersized parcels . . . . . . . . . . . . . . . . . . . . . . 69
b. Other uses for non-contiguous cluster rights . . . . . . . . . . . . . . . 70
4. Mandatory Clustering and Conservation subdivisions . . . . . . . . . . . . . . 70
VII. WorksConsulted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
7
VTLI. Appendices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .�. . . . . . . . 73
8
I. Summary
A. Description of the Proposed Action
This action involves adopting a comprehensive plan that will ensure a continued safe and
reliable public water supply in the Town of Southold. The plan will provide for a range of options
for supplying the residents of the Town of Southold with a water source that both meets water
quality and quantity requirements. This generic EIS will identify a strategy that best provides a
safe and reliable water supply for the Town of Sauthold and minimizes any associated negative
environmental impacts and economic costs. This Plan is intended to guide SCWA actions in the
Town for the next five years. Current estimates indicate that 9,480 gallons of water per minute at
ma�mum use over the next five years would be required ta serve the water needs of the Town
within areas designated for water service.
At:present, the demand for public water in the Town of Southold exceeds the amount of
water currently developed by the existing SCWA Southold system. This strong demand and the
�limited nature of SCWA's system within Southold, led SCWA to adopt a six month moratorium
on allowing connections to its system. The moratorium, adopted on May 21, 2002,was for the
express purpose of allowing SCWA time to adopt a strategy for increasing the supply of water
. within the Town. The mor.atorium expired on Novem�Pr 2�, 2C��2.
B. Significant Beneficial and Adverse Impacts
Significant beneficial impacts of the action will be to provide a safe and reliable supply of
water-that assures compliance with applicable regulatory standards and meets the existing
demands of the residents of the Town. Potential adverse impacts identified include: impacts to
ground and surface water quality and quantity;growth inducing impacts; and temporary impacts
associated with construction.
C. Mitigation Measures Proposed
SCWA will select alternatives that minimize construction activities, minimize visual
impacts, are sized to meet projected demand and maintain the hydrogeologic balance within the
Town's aquifer system. Growth inducing impacts can be managed by local government.
Opportunities identified by SCWA for managing such growth are suggested for local
consideration. Encouraging responsible development will lessen the impact that development will
have on SCWA's system.
D. Alternatives Considered
Alternatives identified include the purchase of water from the Town of Riverhead Water
District, transmission of water from the west through the Town of Riverhead in newly
constructed water mains, reliance on existing wellfields within the Town of Southold through
9
extensive water treatment programs, developing new well fields, constructing desalinization
plants, mandatory water conservation programs and a no action alternative.
E. Matters to Be Decided "
Matters to be decided includ�-�ste:mining which alternative�to select and the acceptance
of the Final Generic Environmental Impact Statement and the adoption of Findings by the SCWA
SCWA envisions the resultant Water Supply Plan will guide its actions in the Town of Southold
for the next five years.
,.
10
�. Description of the Proposed Action
A. Project Purpose,Need and Benefits; Social and Economic Considerations
l. Background and History
SCWA has provided pubtic water in the Town of Southold for several years. Initially,
SCWA, at the urging of the residents and public officials and pursuant to the Suffolk County
Comprehensive Water Resources Management Plan, acquired sma11 water systems. In 1997,
SCWA contracted to purchase the portion of the Greenport water system located outside the
incorporated Village of Greenport. SCWA is also the sole supplier of water, in bulk,to the
Village of Greenport. In 2002, the largely discrete areas of the SCWA Southold system were
interconnected. With the exception of one(1)interconnection with the Riverhead Water District,
which in turn is connected to the SCWA system in the west,tl�e SCWA Southold system is
independent of the larger SCWA system located to the west. This interconnection is used as a
last resort, when SCWA can not supply sufficient water from its wellfields within the Town of
Southold to meet the water demands of the Town of Southold. SCWA maintains appraximately
5,450=customer accounts in Southald. SCWA pumped 665,000,000 gallons of water in the
. period of September 2001 to September 2002 to serve SCWA customers within the Town.
� In 2000, SCWA adopted a str-a+egy for prov'iding pui�lic water�o properties on the North
Fork based upon a map adopted in 2000 by it, the Suffolk County Department of Health Services
and the Town of Southold. SCWA actions since that time have been in accordance with the 2000 .
Map�and Strategy. �
2. Public Need far the Project
SCWA prepared this GEIS as an update to the 2000 strategy. Currently SCWA operates
a series-of:small capacity wells on the North Fork. Large capacity wells, of up to 1,300 gallons
per minute are the norm in the western portion of the County. The aquifer system within
Southold cannot support such large capacity wells. SCWA has not developed additional smaller
capacity wells because the groundwater, while of sufficient quantity, is frequently characterized by
compromised quality requiring extensive treatment to meet drinking water standards. The cost of
developing these wells and treatment systems has caused SCWA to explore a full range of
alternatives for providing a safe and reliable supply of water for the Town. If SCWA decides to
commit the operational and financial resources to developing these smaller capacity wells and
treatment systems, it could produce enough water to satisfy current and projected demands salely
from utilizing the water resources of the North Fork Aquifer.
Of significant concern to SCWA is the potential that the drinking water standard for the
chemical perchlorate currently at 11 parts per billion will be lowered. Perchlorate(C104)is
an anion(negatively charged ion)which is found in the environment when solid
11
salts of perchlorate dissolve in water. The most common of these salts are
ammonium, potassium and sodium perchlorates. Perchlorate is known to be
e�remely soluble in water,with solubility similar to common table salt. The
perchlorate ion is extremely mobile in groundwater environments and can persist
for very long periods of time in groundwater and surface waters due to the strong
chemical chloride-oxygen bc::c�.- The ian is non-volatile and is a-s*:-�ng oxidizer.
(Suffolk County Department of Health Services, Summary Perchlorate Monitoring of Water
Supplies in Suffolk County,February 2001).
The United States Environmental Protection Agency is considering lowering the drinking
water standard for perchlorate. It,appears that EPA is analyzing the benefits and costs of different
standards ranging from 0 to 5 parts per billion. Current reliable detection limits,using state of the
art laboratory equipment is 0.5 parts per billion.
SCWA has detected perchlorate in 11 of the 30 wells it operates in the Town of Southold.
The combined actual capacity of the 30 wells is 4,195 gallons per minute(gpm). If the EPA
selects a level of 2.0 parts per billion or less, water produced at 11 wells wi11 not meet the revised
perchlorate standard and will not be useable by SCWA. This represents a potential capacity loss
of 2,800gpm. In suc;�-zvent, SCWA could not satisfy exi�tirrg_demands and will be prevented
from:meeting tlie=future demands of the Towrr�esidents without taking some action.
SCWA is committed to providing water in accordance with the Town of 5outhold's Water
Supply Management&Watershed Protection Strategy, a component of the Southold
Comprehensive Plan. The purpose of the Water Supply Management&Watershed Protection
Strategy was:
To design, adopt and implement a strategy for the protection and management of
the sole source aquifer of the Township of Southold. The strategy shall define the
areas to be protected, areas suitable for development, areas designated for farm
and agricultural protection and how the watershed will be ma.naged in order to
ensure the highest quality potable drinking water for private water supply wells
and preserve rural character. �
(WSMWPS at 2-3). The Strategy was endorsed by the Town in June 2000 and the Town
adopted a map entitled"Locations of E�cisting Water Mains and Future Water Mains Relative to
Protected.Lands Within Southold Town" at the same time. (Hereinafter the"Water Service Area
Map" or the"Map"). SCWA adopted the Water Service Area Map in July 2000. The Map
desigriates those areas within the Town which are to receive public water. The Map is included as
Appendix 1 and is available forview at www.scwa.com.
3. Objectives of the Project Sponsor
12
The objectives of the project sponsor include: (a)providing a source of water that rneets
both the dernands of the residents and SCWA customers in the Town of Southold and applicable
regulatory requirements(b)providing a reliable source of water to meet the demand that is not
subject to interruption, (c)increasing the fire protection capacity of the system, (d)judiciously
and environmentally dealing with the cost associated with treatment of public water in the Town
of Southold, and(e)providing support for water main extensions to areas in accordance with the
Town of Southold=�%Vater Supply Management&Watershed Pratectiorr-Sirategy and-the VPater
Service A.rea Map.
4. Benefits of the Proposed Action
Adoption of a comprehensive water supply plan will ensure that the water demands in the .
Town can be satisfied. By selecting from a range of alternatives, SCWA will minimize reliance on
one source of water in order to create a multi-source system. Operating a multi-source system is
a good engineering practice which increases system reliabili.ty, minimizes the costs associated with
treating contaminated water and lessens the possibility that overpumping of existing North Fork
wells will occur. The adoption of the plan will also address water supply in the event that the
perchlorate or some other standard is lowered by the U.S. Environmental Protection Agency
� and/or the NYS Department of Health. �
5. Soeial-and Economic Considerations
;` The economic cansiderations include analyzing the cost associated with each alternative
against the benefit, i.e., the amount of water produced by the alternative. Social considerations
include the provision of water to supply the demands in the Town and the growth inducing
impact, although largely controlled by the Town, of increasing water availability within the Town.
B. Location
1. Geographic Boundaries of Project
The project site is the North Fork of Long Island and its contiguous areas. Appendix 2 is
a rnap of the area.
2. Access to tlie Project Site .
Water mains presently exist throughout portions of the project site. See Appendix 1.
Adopti6n of a water supply plan will allow SCWA to replace and modestly increase the amount of
water available within its existing system and support main extensions throughout the Town in
accordance with the Map.
C. Project Area
13
l. Tota1 Site Area
Southold occupies the eastern portion of the North Fork of Long Island. Its mainland
reaches from the Town of Riverhead in the west and terminates at Orient Point at the east. A
series of islands extend from Orient Point toward Connecticut. The mainland of Southold is
approximately 42.90 square miles in size�and is surrounded by the Long_I�land Sourid on the
• North, Gardiners and Peconic Bay on the South.
2. Public Water Supply Areas
SCWA provides water in the area from the Riverhead/Southold border in the west to East
Marion in the east. With the limited exception of the Browns Hills Estate area in Orient, SCWA
does not currently provide water to those properties east of Dam Pond in East Marion.
Notwithstanding the extent of the current system, SCWA has adopted a Water Service Area Map
and intends to develop its system in a manner consistent with the Map and the projected needs of
all of the residents of the Town of Southold.
Included within the study area is Suffolk County Agricultural District Number 1. The
district contains approximately 260 parcels comprising 5,850 acres. (Two pa.rcels within the
dis�ri�t, tota.ling roughly._81 acres, are on Shelter Island). �J�Ihile the district lands are spread
-th�oughout the Town, a belt o�:2nds primar�ly use�=for agricultural purposes strac�dles Route 48
in the Cutchogue, Peconic and Mattituck area. The Southold Special Groundwater Protection
Area incorporates most of these parcels. It is important to note that not a11 parcels used for
agricultural purposes are within the Agricultural District. The district is defined on a parcel tiy
parcel basis and not as a contiguous area.
3. Community Character
The Town of Southold possesses a mosaic of agricultural lands, open spaces, historic
hamlets, residential community, secondary homes and a rich and varied coastline ranging from
bluffs to coastal marshes. With a population density of appro}cimately 200 to 300 persons per
square mile, Southold is still considered rural. By contrast,the population density of Su�olk
. western towns ranges from 3,000 to 4,000 people per square mile.
4. Town of Southold Subdivision Moratorium
The Town recently enacted a moratorium on the subdivision of lands in the Town. During
the moratorium the Town is analyzing and reviewing its zoning and subdivision codes to
determine whether amendments are necessary in order to preserve the Town's character.
Recornmendations from the study effort could include upzonings, mandatory conservation plans,
additional wefland setback requirements, and private-public conservation programs.
Implementation of wide scale upzonings could reduce the number of units that could be
developed in the Town.
14
D. Jurisdiction And Approvals '
1. U.S. Army Corp,of Engineers
An application to the Army Corp would be required if a directional drill under navigable
waters is undertaken.
2. New York State Commissioner of Agriculture and Markets
The project area includes Suffolk County Agricultural District Number l. Pursuant to
Section 305(4) of the Agriculture and Markets Law, a Notice of Intent must be filed with the
Commissioner of Agriculture if a public benefit corporation, like SCWA,
intends to con5truct, . . ., water[] facilities to serve non-farm structures, [in such
case SCWA] shall use all practicable means in undertaking such action to realize
the policy and goals set forth in this article, and shall act and choose alternatives
which, consistent with social, economic and other essential considerations, to the
ma�simum extent practicable, minimize or avoid adverse impacts on agriculture in
order to sustain a viable farm enterprise or enterprises within the district.
As the projecf-is conternplate�'�S�WA will not-be_funding the service of non-farm
structures witiiin tne agricultural district. The-proposed action is Iimited-to adopting a water
�
supply.plan.
3. New York State Department bf Environmental Conservation
Depending on the options selected by SCWA, well permits may be required. In such
event, a water supply application would be submitted to the New York State Department of
Environmental Conservation. SCWA operates under a general wetlands permit issued by the
DEC. If the construction of a transmission main from the west into the Town is selected as a
viable alternative, depending on whether the route of the main transverses regulated wetlands,
DEC would be notified. DEC would need to approve the use of injection wells to dispose of.
waste water generated by treatment systems.
4. New York Secretary of State
The Secretary of State has jurisdiction over the navigable waters of the State and an
application would be required if a directional drill within such waters was proposed.
5. New York State Environrnental Facilities Corporation
SCWA frequently applies to the New York State Environmental Facilities Corporation for
�'unding of its projects. Projects associated with this Plan would be eligible for funding under the
' 15
State Drinking Water Revolving Fund administered by the Environmental Facilities Corporation.
6. County of Suffolk
An application would be required to the Department of Public Works to install a water
---- main within C�unty Roads. A seY�.rate application would b.e.required te-the parks Department,
the Council of Environrnental Quality and the Legislature if a water main was installed within
County parklands, including Indian Island County Park. The Department of Health Services
would be required to approve any new water treatment facilities.
7. Town of Riverhead
Town road opening permits may be required if water mains are built in Town roads. The
Town may need to approve the sale of water from the Riverhead Water District to SCWA.
8. Town of Southampton
Town road opening pernuts may be required if water mains are built in Town roads.
-9. T-`3wn of Southold
Town road opening pernuts rnay be required if water mains are built in Town roads.
10. Riverhead Water District
Alternatives relying on the large scale purchase of water from the Riverhead Water .
District or any new connection to the District may require approval from the District.
11. Central Pine Barrens 7oint Planning and Policy Comrnission •
Although a proposal involves developing public supply wells located in the Core
Preservation Area of the Central Pine Banens and transmitting the water produced by the wells to
Southold, no approval from the Commission is required pursuant to the Long Island Pine Barrens
Protection Act of 1993 (Environmental Conservation Law Article 57).
12. Long Island Rail Road
A pernut may be required from the Long Island Railroad(LIRR) if a water main is
proposed that crosses LIRR tracks.
16
ffi. Environmental Setting �
A. Present Conditions
The cunent SCWA system has been developed in accordance with the adopted Water
Service Area Map. The Map identifies areas which are to be served by public water through the
installation of mains. Based on tiie interest of the owners of existing improved parcels for water
in an area designated on the Map, SCWA installs its mains. At present, there are areas designated
an the Map, which have yet to receive water mains. The reasons may include, lack of interest
from the owners of impraved parcels or lack of excess capacity within the SCWA system.
1. Number of customers
Currently, SCWA has appro�mately 5,450 active customer accounts in its Southold
system. The-average customer consumes between 110,000 and 120,000 gallons of water per
year. .
2. '�1Nliles of main �
There are approximately 50 miles on main installed within the SCWA Southold system.
Maj�r:w�ter:transmission mains a.-e-usua�ly 12te 24 inches in diameter. These=large mains ar�_the
backbone of the system. As water is brought into a residential community,the main size gradually
; decreases so that most individual homes tap into mains only about 6 inches in size.�
3. Well fields
a. Water quality and existing treatment
Water produced and served by SCWA rnust meet a host of regulatory requirements.
SCWA must abide by the regulations promulgated, in large measure, by the New York State .
Department af Health concerning water quality. If raw water does not meet the standards,
SCWA must either treat the water or cannot serve it. Treatment is the process by which the
contaminants are removed from raw, untreated,water to levels below the applicable standard
allowing the treated water ta be sezved.
Appendix 3 is the SCWA 2002 Annual Drinking Water Quality Statement.
4. Drinking Water Quantity and Pumping Trends
SCWA operates 30 wells within the Town of Southold. Appendix 4 presents the amount
af water produced by each well in the Town for the period January l, 2002 to December 31,
2002. As one would expect, the demand on the system is greatest during the summer months.
17
B. Land Use and Demographics '
l. Land use
The Suffolk County Planning Department during 1999-2001 undertook a series of studies
in order to characterize the development potential for the five eastern Suff'olk towns. These
e$'orts resuited in three reports: 1999 Existing Lanc�-ITse Inventory, Eastern Su$'o1k t;ounty; 1999
Land Available for Development,Eastern Suf�olk County; and Saturation Population Analysis,
Eastern Suffolk County. Each report built upon the prior studies.
The 1999 Existing Land Use Inventory classified all of the parcels in the five eastern
towns based on their existing land uses into 13 generalized land use categories. Parcels were
assigned to a specific land use category based upon their assessor's code and actual use. Planning
sta�ff verified the accuracy of the assessor code thraugh a cornbination of field inspections, aerial
photography interpretation and by other means. (1999 Existing Land Use Inventory at 8). The
study classified 34,767 acres in the Town Southold into 13 land use categories. Appendix 5 sets
forth the study.
2. Demagraphics
Saturation.-population-was also detenmined by-tne Piaru�ng De��:.*tment for each eastern
town. "Saturation population is the future potential population that would exist when all available
land is developed in accord with existing zoning." (Saturation Population Analysis at 1). Census
data from 2000 was used to determine the population and the number of existing housing units in
Southold. Relying on the Census data,Planning staff further refined the saturation population to
reflect the population attributable to year-round versus seasonal housing units. In Southold in
2000, according to the Census data, 34%of the housing units were seasonally occupied.
Saturation population projections represent the scenario of full buildout of every parcel �
within the Town. In reality, saturation conditions are unlikely to be realized because parcels may
contain environmental constraints which,prevent full buildout, vacant land may be protected from
. development, agricultural lands may not be converted to residential units or the Town may adopt
more restrictive zoning requirements which would have the effect of reducing potential yields.
Seasonal population is the critical figure with respect to water supply because it coincides
with peak water usage in the summer months. SCWA planning efforts center on creating a
reliable water source that can satisfy the peak water usage demands.
a. Current Population
In 2000, 20,599 people lived year round in the Town of Southold. According to 2000
Census data, the number of people in the Town in the summer months was 39,355. (Saturation
Population Analysis 7-8). Thus an additional 18,756 people are in the Town in the summer
18
months occupying seasonal units which represent 34%o�the Town's housing stock.�
b. Projected population at saturation
It is projected that at saturation 33,984 people will live in the Town of Southold year
round. This is an increase of 13,385 people over 20001evels. At saturation, it is projected that
the po�ulatian of thP'?'�-�in the summer months would be 64,1�4-people. Based on these
projections, it is estimated that 30,200 people will seasonally occupy the Town at saturation.
C. Hydrogeology
1. Introduction
The North Fork of Long Island, as with most coastal groundwater resources, functions
hydrogeologically like an elongated oceanic island with a series of fresh water lenses floating on a
large body of underlying salt water and separated laterally by salty zones between the lenses at
rnajor:estuarine creeks. (Leggette, Brashears& Graham, Inc., "LBG,"Master Plan at 5).
Appendix 6 provides a LBG study that includes a cross-sectional view of this hydrogeology.
There are three aquifer systems below the North Fork: the Upper Glacial, the Magothy and the
Lloyd. Only the Upper Glacial Aquifer contains freshwater water as the ather two are"primarily
saline." (W-SMW1�-S-at 9�.-
s' Beneath the North Fork, a clay layer extends from the LaureUMattituck area to the
Cutchogue area at depths extending from SO feet below sea level to 90 feet below sea level. The
thickness of the clay varies from 20 feet in the west to 90 feet in the east. (LBG, Master Plan at
5). The presence of the clay layer"limits the potential for upconing of salty water beneath
production wells." (Id.). However it does not prevent the lateral intrusion of salt water.
Recharge to the aquifer in the form of precipitation has filled the different lenses to
� different depths. These mounds of groundwater represent the water resources that can be utilized
ta serve the North Fork. Typically, along the coasts, groundwater in the Upper Glacial Aquifer is
at sea level, in the middle of the North Fork, in the vicinity of Mattituck, the groundwater in the
Upper Glacial mounds to approximately 5 feet above sea level. For each foot that freshwater
extends above sea level, there are approximately 40 feet of freshwater below sea level.
(WSMWPS at 10). Thus in the area of the 5 foot groundwater contour, there is an appraximately
200 foot thick mound of freshwater.
� 2. Amount of water that can be developed on the North Fork
LBG studied the potential far supplying the water demands of the North Fork by utilizing
the groundwater resources below the North Fork and concluded it was feasible. LBG proposed a
Master Plan for providing water to the Town in July 1992. LBG built upon previous studies
which calculated the"Permissive Sustained Yields" of the North Fark aquifer. Pernussive
19
sustained yields were defined by The Comprehensive Public Water Supply Study for Suffolk
County(CPWS-24)prepared in 1968 by Holzmacher,McLendon&Murrell. The pernussive
sustained yield was defined to be"the maximum rate at which water can be consumed perennially
without bringing about some undesired result." (LBG,Master Plan at 9 quoting CPWS-24).
LBG.s�mmarized the process of detenmining the yield as follows:
In effect, the estimates of Permissive Safe Yield began with area-specific recharge
rates, made reductions for near-coast areas outside the main water budget area,
and made.further reductions based on an"optimum" position of the salt-water
interface, including considerations of drought.
(LBG,Master Plan at 9).
The following table sets forth the Permissive Sustained yields.
Permissive Sustained Yields for Southold Town from CPWS-24 .
•2
ra e
rnus ive PS
Y er nu
t3ve
Pe s
P
g
. r _
V'
- .1�
, a er
��-_
in �, w t
Susta ed
».;�.
� ud et area -
Yi ld S b
e
�)
�' � g
�
•2
md
�
m d
m d1
� g
)
�
g ) �
g )
>::;<:: .
West of Mattituck Creek 2 0.40 3.4
� Mattituck Greek to Hashamomuck Pond 5.5 0.35 10.4
Hashamomuck Pond to Orient Harbor 1 0.25 2.1
East of Orient Harbor 0.5 0.25 1.1
Tota1 9 - 17
Another study of this issue is the North Fork Water Supply Plan(]vFWSP)prepared by ERM-
Northeast and Camp,Dresser&McKee built upon the CPWS-24 siudy. The results of this study
are as follows:
20
Permissive Sustained Yield for North Fork from NFWSP
Pernussive Sustained Present Potentially
Yield Consumptive Available �
Zone . Use • for Future
(mgd) (mgd/mi2) (mgd) Use(mgd)
1-Riverhead 29.4 0.7 4.7 24.7
2-Riverhead&West Southold 5.6 ' 0.4 3.9 1.7
3-West Central 4.9' 0.35 3.3 1.6
4-Central 0.9' 0.25 0.5 0.4
5-East 0.40' 0.25 0.47 02
' Since the underlying aquifer in these zones have insufficient storage,these values are conservatively based
on drought conditions and would be larger for a year of average precipitation. �
' The zero entry indicates that the present consumptive use is approximately equal to the permissive
sustained yieid on Zone 5 during drought conditions.
LBG adopted the findings of the CPWS-24 study in_anai_yzing_thP-�otential for supplying-
the Town's water.needs as the"m�st conser-vative val�es for water-supply-�la�ning purposes_"
(LBG,Master Plan at 11). �
;
� In the-LBG Master Plan it was noted that water supply wells with capacities as high as
Z00 gpm ean be operated in areas of water-table elevations of 4 feet above sea level without
inducing upconing of saltwater. (LBG, Master Plan at 13). Further protective of a well's
capacity would be the clay layer which"limits the potential"for upconing. Having established
that la.rge capacity wells could be established along the 4 foot groundwater elevation, LBG
proposed developing six wells with the"combined sustained capacity of 3.2 mgd, [a] sufficient
yield to supply a population of about 30,000 people." (LBG,Master Plan at 14, emphasis added).
LBG recommended locating these wells along the periphery of the 4 foot groundwater elevation.
Recognizing that a large seasonal population occupies the Town during the summer rrionths,LBG
concluded that, "short-duration seasonal pumpage substantially greater than the year-round rated
capacities may be accommodated." (Id).
Even though LBG has concluded that the North Fork Aquifer has the capacity to provide
for the Town water needs, wells developed on the North Fork most likely will require treatment.
As LBG noted, "[t]reatment for nitrate andlor pesticide/herbicideJfungicide residue removal and
for iron and/or manganese removal should be planned for [at] any public water well field in the
Town." (LBG, Master Plan at 21). And.because the clay layer would limit the potential for
upconing of saltwater, LBG recognized that lateral intrusion of saltwater would be the"more
limiting factor" an wellfield yield. (LBG, Master Plan at 12).
21
Current projections indicate that 33,984 people could live full time within the Town at
saturation density. This population base could be served by developing wells as per LBG
recommendations. A.n additiona130,200 people could seasonally occupy the Town. The
combination of the existing wells and the well network proposed by LBG could serve the number
of people at saturation density.
D. Potential Conditions
One of the features of the Geographic Information System(GIS) operated by SCWA is its
ability to maintain large amounts of land use data. The system contains attributes on the
individual pascel level including, among other things, parcel size, parcel ownership, land use code,
tax map number,location, location relative to the Water Service Asea Map, and whether or not
SCWA serves the parcel. Data on existing and proposed water mains on a Town wide level is
also rnaintained in.the database. Organizing the data in a particular manner is accomplished
through the use of.queries. A query permits a GIS manager to define a set of parameters, or
conditions; and then submit the query to the system to determine if any data, or in this case,
parcels,r satisfy the query.
1. Number of potential units within Water Service Area .
Using data developed by GIS coupled with information provided iiy the 1 own of Southold
Assessor:and the Suffolk County Planning Department, projections were made on the nurnber of .
. customers=that SCWA may be required to serve. These projections were of the number of parcels
that are-loeated in areas of public water service, as designated by the Water Service Area Map,
but:have yet to receive public water. Criven SCWA's commitment to serve those areas identified
by the=Map, provisions for developing a water supply for these potential customers rnust be made.
a. Methodology
Using carefully scr•ipted queries, the GIS managers were able to characterize the land use
and zoning of the parcels in the Water Service Area Map's boundaries. To determine the number
of parcels that are within the Map's area but have yet to receive SCWA service the GIS rnanagers
deternuned the amount of raw acreage of each parcel that is within 75 feet of an existing water
main or 75 feet of a potential main and classified the totals by zoning category. (See Appendix 7).
This data was further refined into 3 categories based on the individual paxcel's land use code. The
categories were"vacant,""unknown," and"underdeveloped." Parcels in the vacant category
were not developed, those in the unknown category did not have a land use code assigned to them
by the Town Assessor and those in the underdeveloped category were developed but still could be
subdivided and developed further.
After determining the number of acres in each category, a development yield factor was
applied to the total acreage in the vacant and unknown category. A development yield factor is a
inultiplier based on the number of lots that could be obtained in a typical subdivision recognizing
22
the zoning of the underlying parcel. As an example, if a ten(10) acre parcel zoned R-40, with no
constraints, is subdivided, the develaper can anticipate obtaining eight(8)lots. This recognizes
that some of the parcel would be devoted to infrastructure improvements such as roads and
drainage facilities. Thus the development yield factor for the R-40 zoning is 0.8. The
development yield factors utilized by SCWA were derived by the Long Island Regional Planning
Board in 1978. This calculation was done on a parcel by parcel basis for the underdeveloped
category after subtracting on�unit from the-par���size.
Given the uncertainty inherent in the"unknovm" category, SCWA assumed that such
parcels were undeveloped, subdividable and could require public water.
b. Projected number of units that could be developed
Using the foregoing methodology, SCWA determined that an additiona14,033 residential
units could e�st in the Water Service Area if each parcel was developed to its fullest potential.
SCWA analysis:indicates that an additiona1789 non-residential units could exist in the Water
Service Area if each existing non-residential parcel was developed to its fullest potential.
Thus the total potential number of additional units inside the Water Service Area Map is
4,822 (4,033 +789).
c. Estixnated number of existing units without public water .
�
To deternvne the number of existing units within the Water Service Area not cunently
served by SCWA, SCWA GIS managers highlighted all e7cisting SCWA customers within the
water serviee�area. The balance of the units are not currently SCWA customers. A count of
these.units was performed resulting in the tally of existing units which are not currently SCWA
custorners. According to this analysis, there are 3,281 existing units within the water service area
that are not served by SCWA.
2. Number of potential units outside the Water Sezvice Area
SCWA determined the number of units that could be developed in the Town assuming a
full buildout, in order to allow the selection of alternatives that would have the capacity to meet
the Town's projected demand. Full buildout assumes that every available parcel is developed to
its maximum potential under current zoning.
a. Methodology
SCWA utilized the same methodology as employed to deternune the number of uruts
within the Water Service Area to determine the number of units outside the Water Service Area,
b. Projected number of units that could be developed
23
SCWA determined that an additioria13,702 residential units could e�st outside the Water
Service Area if each•parcel was developed to its fullest potential. SCWA analysis indicates that
an additional 186 non-residential units could exist autside the Water Service Area if each existing
non-residential parcel was developed to its fullest potential.
Thus the total potential number of units outside the Water Service Area Map is 3,888
(3,702+ 186).
c. Estirnated number of existing units without public water
In addition to the theoretical number of units which could be developed on vacant lands,
4,877 units already e�st. This number was obtained by counting the existing units as depicted on
aerial photographs contained within the SCWA GIS systern. These units represent potential
SCWA.custorners.
3. Summary
The following tables summarize the preceding sections.
Potential atesidential Units within Water Servi�e Area
Development yield factors based on 208 study "
as of October 18, 2002 .
s::?�::;:::>`;<::;`:.::::;;;
<
�»?���'�''�<:.?'.;:;i:�:`•;:'<>:.
>::;::>�::i:� � Land Use ``.....:�:.,�:I�.>:::>
..?��k�:;i:�..
:;:':<:;;:;::;:;>
nkn
*
el ed
U own
der ev o
n d
cant
U
Va
P
AC 283 552 314 1,149
A�ID 24 5 0 29
HD 82 . 101 55 238
R40 865 421 168 1,454
R80 332 700 123 1,155
R200 0 0 0 0
RO 5 3 0 8
:<:>;:::i:>:::>;;:>:`::>:::::>:<:>:'.
������'T'c����;.:;;;:;,; 1,591 1,782 660 4,033
:<:>:><�':'<`.>;:::<.:<.:.::;>::.�::.:.........
�Parcels which do not have a land use code assigned by the Town of Southold Assessor assumed to be developable ,
24
Potential Non-residential Uruts within Water Service Area by Zozung Category
as of October 18, 2002
:.':::;:::;:.�>':>�>:::;�::;.:::;::�:'���::>:
......�... .:::::.�::::.
::.::::�.:.......... Land Use
,;.;:.::�;:>:><:>:?<:"<':'`'`>`;.<::;;::
.n:�::�:i�#€s:..
Va
can
t
n
U derd *
evelo
Unkn
P� o
wn
-�- - 21 36
14 ......::::::::7 i::.:::::::::.::.
� 9 29 12 50
LB 19 24 8 51
Lj 30 33 10 �3
_LIO 56 185 9 250
MI p 6 � 6
� 20 68 2 90
� 35 121 � 42 198
:,:<.«<:'T`��::��ii��::»:>s::: 190
.. 502 97 789
*Parcels•which�.do not have a land use code assigned by the Town of Southold Assessor assumed to be
-undeveloped
Potential Residential Units outside Water Service Area
j Development yield factors based on 208 study
as of October 18, 2002
�;::;;:;:>:�s:::<;::»:�>::''::'':::
..:::::�b�`:::.::::::::
Land Use
�:<�;'�'''._''>.'::;`:`'::<:::>:<:>:'::;:�s
.:.....:�at#t;�z�z�s..:::
V
a
cant
Und *
erd 1
eve o
ed
U
nkn
P own
AC 13 1,477 268 •::.:.:.::;;1,758:.;:.::.;:. .
AHD p p � �
�ID 29 514 0 543
R40 295 92 103 490
R80 400 363 129 892
R200 1'7 2 0 19
R400 0 0 0 0
RO 0 0 0 0
;::.;:;.:>.'.�::;':':'.':::::::;::>:;<::>�::::::::>:::::::;
i>;;::::;;`�`�::�J€��:;:::::::;'•:::: '7S4 2,448 500 3,'702
*Pazcels which do not have a land use code assigned by the Town of Southold Assessor assumed to be developable
25
Potential Non-residential Units outside Water Service Area by Zoning Category '
as of October 18, 2002
>�:».<,..�:;:::���;::.:
d e ;;:;;�'�Y�... a1� ....
::;:::;<;:::i<�:t1';`��;';`:���::»::::::<'?:::
Lan Us
:.:::.�.�.�..,�...f.:;:.>::•::.�;::•
. *
n erd elo ed
Unknown
Vacant
U d ev
P
B 5 2 4 11
HB 12 3 6 21
LB 1 13 0 14
LI 15 53 1 69
LIO 1 23 6 30
i MI 0 1 0 1
MII 7 2 0 9
RR 0 31 0 31
�::::>?;Z`�;;�'::�i?�::::".>•':`:: 41 128 17 186
*Parcels.which�do not have a land use cade assigned by the Town of Southold Assessor assumed to be
undeveloped
E. Potential Conditions-Water Quantity required under different buildout scenarios
1. Water Service Area
Historically, the peak demand consumption per unit in the Town is 0.65 gpm. If the areas
within the`Water Service Area Map's boundaries were fully developed, an additiona14,822 units
could be developed. Moreover, there are 3,281 e�cisting units which are not current SCWA
customers. In order for SCWA to have the ability to serve both the potential units and the
existing units which are not SCWA customers, an additional 5,267 gallons per minute of capacity
will need to be developed. ((4,822+3,281)x 0.65).
2. Entire Town
The Tawn could be developed at its fullest potential with 22,318 units(including
residential and non-residential). This number is the sum of the existing SCWA customers(5,450)
plus the existing units within the Water Service Area that are not SCWA customers(3,281)plus
the potential lots in the Water Service Area(4,822)plus the existing units outside the Water
Service Area(4,877) plus the potentiallots outside the Water Service Area(3,888). A.ssuming a
factor of 0.65 gallons per day per unit, would require 14,507 gallons per mi.nute. (22,318 x 0.65).
In addition, 800 gallons per minute are required to serve the Village of Greenport. This does not
take into consideration any water intensive uses, such as power plants. In total, 15,307 gallons
per minute would be needed to serve the entire Town of Southold and the Village of Greenport.
26
3. Summary �
The following tables summarize the buildout and water required projections.
Potential Buildout
_�� . _ _
stu►
S a
�CN E�stin
ni
U ts Not
P
otential
ni
� U ts
To
tals
g
Cust m �
o ers
Connec
ted to
SCWA
Within Water Service Area 5,450 3,281 4,822 13,553
Outside Water Seivice ELrea 0 4,8�7 3,888 8,765
Totals 5,450 • 8,158 8,710 22,318
Water Required under Different Scenarios
(Assumes consumption of 0.65 gpm per unit)
'�� Exi
st�n
SCWA E ' '
au n
st� nits N
U ot P
oten'
hal
g Villa
e f
g
g
0
�>>��t���<>��
::>::::>>::>:<::>::>:<:::>��::>:::<<»::
:::::::::::.:.:::::::::::::::;:;::.;::::::::.
. y
.:;<:;:;::::.;;:::::::><:::;>:»;:::><;::<::::>:>:::.:
. ;':::::::€::::><;:::
>>:::>:::«;::::::><?;`:>::::::>::>::.:>.<:: Customers * :::
Connected to Umts Green rt �:::::;:�a��vs�s;:':':;::;>::>::>;::
::'::;::>::::>?:':::::::>::;::::::;::>::;`::::::
Po :;....��..
:::::::.�:::.::.
SCWA
::�'�31�:>:
#t�:�:..`,,,..'t..'
��;:.
::.�!;?�::;:::::;;>
-Within Water 3,543 2,133 3,134 800 9,610
� Service Area
Outside Water 0 3 170 2 527
> , 5,697
Service Area .
``:<::�`:':"�i:::::�::::::_<>::;:':.:>>':
' 3,543 5,303 5,661 800 15,307
.......:€�:;::>:_:»>::::::>::s::::>:<:::>%
;::`:�::::::��4�AS;:�#':::;:;;:::>.<:
::::;:zi��i.�;z�q�i�;;::<':
...............:::.:..�: .....
*SCWA provides water to the Village of Greenport in bulk pursuant to an agreement.
F. Potential Conditions- Trends of Water Quality
SCWA frequently tests groundwater samples from various wells in the Town of Southold
to determine water quality. Under this program, water produced by test wells, fire wells,
irrigation wells, rnonitoring wells or abandoned production wells is tested at the SCWA
laboratory. This extensive testing program allows 5CWA to track the state of the groundwater
throughout the Town. If a site produces water that meets SCWA standards, a production well
may be considered for the site. SCWA's standards when evaluating if a site is a candidate for.
having a public well installed are more stringent than regulatory requirements;underlying this
policy is the theory that if the water produced at the test site is close to a standard, the standard
may eventually be violated resulting in the implementation of costly treatment or abandonment of
the well. By considering sites with groundwater quality well below the standard, the likelihood of
a violation is lower and thus the return on the SCWA investment would be greater. Appendix 8
27
gives the results of the testing program.
As Appendix 8 indicates, the groundwater quality in the town is compromised and
represents some of the worst raw groundwater quality in the County. This factor makes .
producing drinking water to satisfy the Town's demands difficult absent the implementation of
extensive treatment programs. Typical treatment options are discussed in Section N below.
�'�
28
1V. Alternatives
;
In this section, SCWA will examine different water supply alternatives for meeting the
existing water supply demands of the Town and which can be expanded as the demand increases.
The first section will review difFerent technologies for treating the water produced at the existing
SCWA wells on the North Fork. The second section will look at the feasibility of developing new
=v�zlls in the Town. The third section will study the potential for developing a water supply source
outside the Town and transmitting the water into the Town. Costs associated with the different
options will be reviewed. Special emphasis is placed on developing technologies for removing
perchlorate. Proven treatment methods exist foz treating the other contaminants encountered in
the Town. Appendix 9 sets forth the cost estimates for the various systerns discussed below.
A. Water treatment at existing SCWA wellfields
1. Ion Exchange Resin Technology with on site regeneration to treat for perchlorate
a. Technology
These systems are based on a process by which raw water is passed through a filter media
in a vessel consisting of synthetic resin beads that are coated with an anionic gel containing ,
chlorid�ions..�A:s the_rakv water passes throu�h-�he-filter_media, the chloride ions in the resin
exchange urith the perchlorate in the raw water. The perchlorate is removed from the raw water
� and bonds to the�resin resulting in finished water that meets standards.
Periodica.ily,the resin must be regenerated in order to maintain the efficiency of this type �
of system. Regeneration involves flushing the system with a brine�solution. As the brine solution
<passes over the resin, ion exchange again occurs with chloride ions in the brine solution
exchanging with the perchlorate bonded to the resin. The perchlorate is flushed from the resin.
At the end of the regeneration cycle, the resin as regenerated and once again able to remove
contaminants.
Ion exchange systems result in a volume of waste consisting of the brine solution
concentrated with perchlorate. Typical systems contain both brine and waste storage tanks at the
well field. The waste produced by these systems is approximately 0.2 percent of the total system
flow. This waste must be removed from the plant and disposed of in accordance with applicable
regulations. It is estimated that an on site waste tank sized for a North Fork pump station will
need to be emptied every four days.
In order to treat a continuous stream of contaminated water it is necessary to have
multiple filter vessels installed so that at any given time, one vessel will be filtering raw water
while the ather is in regeneration mode.
b. Capacity �
29
Ion exchange systems are designed and constructed to rneet the capacity of a specific well
field:
c. Operating Costs
Appendix_-9-��tails the cost associated with installing�-�perating io�-���hange �ystems_
at the existing Southold wells. In general, economies of scale can be realized when the systems
are installed at lasger capacity wells resulting in a lower cost per thousand gallons of water
treated.
.d. Design
Ion exchange systems ase housed within a 10 foot by 30 foot building with a 25 foot high
peaked roof located at the wellfield. In addition, an above ground 12 foot diameter waste storage
� tank that is 20 feet high would also be constructed at the wellfield. To prevent freezing, the tank
would be enclosed within a 20 foot by 40 foat building which has a 32 foot high peaked roof. A
driveway would need to be constructed to allow access ta the tank building to facilitate the
removal of the waste by tanker truck.
2. Ion-Exchange I�esin_Technolo��ovith off site disposaLto treat for perchlorate
a. Technology
� Ion..exchange resin with o$'site disposal systems work in the same manner as ion
exchange resin with on site regeneration with one notable exception. Instead of regenerating the
resin by flushing the filter media with a brine solution, when the resin is depleted it is removed
from the vessel and new resin is installed. The advantage of such a system is in its simplicity;
there is no regeneration of resin, brine storage or waste storage in the field.
b. Capacity
The systems can be designed and constructed to meet the capacity of an existing well field.
c. Cost
The cost of designing, constructing and operating these types of systems have not yet been
determined because their effectiveness is being evaluated as part of a�SCWA pilot study currently
underway.
d. Design
Ion exchange systems are housed within a 10 foot by 30 foot building located at the
wellfield. A driveway would need to be canstructed to allow access ta the building to facilitate
30
the removal of the spent resin by tanker truck. . '
3. Granulated activated carbon treatment systems
a. Requirement
rn additionto perchlorate��ntamination, many of the SCWA North T'r c�r�€wells are
impacted by the presence of other contaminants. SCWA uses granula.r activated carbon filters
(GAC)to treat these contaminants. These contaminants, range from pesticides and herbicides,
the metabolites or breakdawn components of pesticides and herbicides, to volatile organic
coznpounds, such as r.emnants from petroleum spills.. .GAC units are installed at the Evergreen
Drive,.Sunset Drive, Inlet Drive, Middle Road,Peconic, Old North Road, Island End, and Rocky
Point Road wellfields. The carbon within the units is periodically changed to ensure the
ef�ectiveness of the system. Disposal of the carbon is the responsibility of the carbon supplier.
Typically,the spent carbon is eitlier incinerated or landfilled.
b. Contaminants effective at removing
GAC units are e�ective at removing VOCs, pesticides, arid herbicides and have some
limited effectiveness at removing law levels of perchlorate. SCWA is cunently perfornung pilot
-studies to aetermine the effectiveness of G�C-ior-removing perchlorate.
�' c. Cost of system .
The_estimated cost for developing GAC units for wells producing 50 gpm to �50 gpm of
water range from$50,000.00 to $500,000.00 depending on the size of the well.
d. Design
GAC units are housed within a 20 foot by 40 foot brick facade or steel building located on
a concrete slab. The building height can reach as high as 23 feet. The building would have a large
garage style door to allow tanker trucks to access to system. The tanker trucks would bring and
remove the carbon within the filters when it is no longer effective. The carbon is trucked o�site
for disposal.
4. Membrane Filtration
a. Technology
Membrane filtration systems consist of a membrane through which water is passed. The
mernbrane has tiny holes that allow water to pass through but trap contaminants contained within
the water. As the water passes through the membrane, contamina.nts are filtered from the water.
31
Two drawbacks of inembrane systems are that frequently the water to be passed through
the membrane must be pressurized and these systems generate high volume of waste water.
Pressure requirements can require the installation of booster pumps. Operation of the booster
pumps adds to the complexity of the system and increases operating and maintenance costs.
Waste streams associated with membrane filter system can range as high as 15 percent of
the amount of water treated. Consequently these large volumes of waste water must�be disposed
of in accordance with applicable standards. .
b. Contaminants ei�ective at removing
Among the contaminants that membrarie filter systems can remove from raw water are.
perchlorate, nitrates and chlorides. Theoretically, any contaminant that is larger than the pore size
of the membrane would be removed from raw water as the water passes through the membrane.
Thistechnology is attractive because unlike ion exchange it is not specific to any individual
contaminant. Therefore it could be employed to address future unknown constituents or revised
standards.
c. Capacity of system
'�i'he membrane filter systerris can be desig:ned and const�ctedrto-meet-the capacity-�£an
e�c.isting well field.
d. Cost of system
SCWA is currently outfitting a small reverse osrnosis filter a type of inembrane filtration at
its Long Way Wellfield in East Marion to gauge the cost and effectiveness for nitrate removal.
e. Design
A large building is required to house a membrane filter systems because the membranes
a.re arrayed horizontally. It is estimated that a building on the order of tens of thousands of square
feet would be required to house a membrane filter system sized to meet SCWA demands. Given
the area requirements of large membrane filter systems, they may not be an option for some of the
SCWA wellfields located on small parcels.
5. Desalination of Seawater Using Membrane Filtration
a. Technology
Desalination plants operate on the same principle as membrane filtration systems. Salt
water is passed through a membrane that removes the chloride from the water. While membrane
� • 32
systems often require"boosting" water pressure to force the water through the membrane,
'� desalination plants require that the water beirig forced through the membrane be highly
pressurized. A typical treatment system rated at 250 gpm of capacity would require the use of a
500 horse power electric pump to create the pressures need to force the saltwater through the
membrane. Desalination generates waste which must be disposed of in accordance with '
applicable regulations. These systems generate a significant volume of waste. For each gallon of
wa4cr-�reated, 50%is.wavt�. �
b. Contaminants effective at removing
Among the contaminants that membFane filter systems can remove from raw water are
perchloxate, nitrates and chlorides. Theoretically, any contaminant that is larger than the pore size
of the membrane would be removed from r�.w water as the water passes through the membrane.
c. Capacity of system ,
The systems can be designed and constructed to provide capac�ty as needed.
d. Cost of system
Desalination plants are expensive to construct, opetate and-main�ain; The incr:easad
ener.gy costs to operate the plants over the long term are significant. In addition, the large waste
� stream must be disposed of in accordance with applicable regulations. Lastly, desalination plants
must be located near the shore and thus would require the purchase of an expensive parcel of
���land.
e. Design �
A large building is required to house a desalination plant because the rnembranes are
arrayed horizontally. It is estimated that a building on the order of 10,000s of square feet would
be required to house a membrane filter system sized to meet SCWA demands. Typically,the
buildings have flat roofs. Given the area requirements of large membrane filter systems, only a
large parcel of land near the shoreline would be able to hald the plant.
6. Desalination of Brackish Water Using Membrane Filtration
a. Technology
Recognizing that underlying large portions of the North Fork is a lense of brackish water,
the use of desalination plants to treat this type of water was explored. Under this type of system,
brackish water, which is saltwater difFused with freshwater, would be pumped from beneath an
existing wellfield and treated at a desalination plant on site. Because the amount of salt in
brackish water is less than seawater the amount of pressure needed to pass the brackish water
33
through the membrane is less, resulting in lower operating costs.
b. Contaminants effective at removing
Among the contaminants that membrane filter systems can remove from raw water are
perchlorate, nitrates an�-ch�orides. Theoretically, any cont�m�nant that is larger than the nore size
of the membrane would be removed from raw water as the water passes through the membrane.
c. Capacity of system
� A system can be designed to meet SCWA requirements. V�ells using this technology
would not-be subject to the same capacity limitations of existing SCWt�wells.
d. Cost of system
Construction, operating and maintenance costs while.lower than a salt water desalination
plant would still be still significant. Land cost savings could be realized if the plant was located at
an e�sting well field.
e. Approvals required
�
If a system was designed to treat brackish water a DEC pernut authorizing the withdrawal
would probably be required. DEC may have institutional reluctance to grant a pernut given the `
potential that brackish water could infiltrate the lense of freshwater which it underlies rendering
the freshwater lense unusable for drinking water purposes.
f. Design .
Desalination plants to treat brackish water could be constructed at exiting SCWA
wellfields. As with membrane based filters and desalination plants, the membrane would be �
horizontally anayed within a large flat roof building.
�. Point of Use Filtration Systems
a. Technology
Point of use systems are filters installed at the customer level. Rather than treat water at a
wellfield,raw water or partially treated water would be provided to customers. At each point of
use a filter would be installed to remove contaminants in the water.
b. Contaminants effective at removing
Point of use systems can remove a suite of contaminants including perchlorate, nitrates,
34
VOCs,pesticides and herbicides. Point of use systems are currently being used on the North Fork
to remove the pesticide Temik and its breakdown product, aldicarb, from drinking water.
a Capacity of system
The filters would be sized to treat the water used for.potable purposes by each customer.
They-may take the form of"under the sink"filters or housenold size filters. .
d. Cost of system
Costs include purchasing the filters, installing the filters, maintaining the filters and
. providing laboratory tests to monitor the filter's ef�iciency. Labor costs associated with these
types of systems is high because visits must be rnade to each customer to monitoz the system's
perFormance. These visits require scheduling with the customer and require that the customer be
present to allow the workers to inspect the system.
e. Approvals required
While the Safe Drinking Water Act pernuts point of use filtration systems, reluctance to
their use on a Town wide basis has been expressed by the Suffolk County Department of Health
Serviees-because of the�_alisence of continuous monitoring. _A.dditionally, it is an open ques�ion
whether disposal of the waste generated.by point of use filters is a regulated activity. Regulations
{ may be promulgated on the disposal of the filters. Compliance with these regulatians could be
both=expensive and time consuming based on whether the filters are treated as hazardous wastes
' and if so, the subsequent record keeping responsibilities.
8. Water, Water Quality Treatment and Water Supply Districts
Town Law §190 et seq. authorizes the Town Board of Southold to create water, water
quality treatment, and water supply districts. Any proposed district must be created pursuant to
Town Law. Upon creation, the Town would then be able to provide water to those properties
within the district. The cost of the iinprovements and operations would be assessed on an ad
valorem basis to the property owners within the district. Prior to creating the district, the Town
would be required to demonstrate the source of water supply. (Town Law §190-c).
. Rather than operate the newly created system, the Town could contract with SCWA to
provide those services.
9. Underground Injection Wells to Dispose of Waste Generated by Treatment
Facilities
SCWA investigated the possibility of discharging the waste generated at its wells in the
saltwater beneath its well fields. The impetus for this investigation was the DEC regulation
35
discussed below.
a. Technology
SCWA investigated the possibility of installing injection wells at its well sites to treat the
�aaa�t�water streams generated by a tr.eatrnent technology. �T��er this proposal,_nitrate,
, perchlorate, sulfates, chlorides, and brine waste would be injected into the underlying brackish
groundwater. The advantage of injecting the waste water directly into groundwater is that
SCWt1 would not have to truck the waste from the site. In addition, SCWA would not incur
disposal or tippingfees in connection with treatment of the waste stream. The wells would be ,
driven to a depth at�which their effluent would be released into the salt water which underlies the
North Fork.
b. Cost of system
Costs:associated with constructing a typical underground injection well system is
estimated at'�50;000.00. These costs are offset by the savings realized because a waste storage
�cank would not have to be installed and there would be no long term waste disposal costs.
c. Lega1-authority
Underground injection wells are regulated by the New York Department of Environmental
Conservation and would require SCWA obtain a pernut authorizing their use.
The DEC�classifies graundwaters based on their best usages. Saline groundwaters with a
"chloride concentration in excess of 1,000 milligrams per liter or a total dissolved solids
concentration in excess of 2,000 milligrams per liter" are classified as Class GSB waters. (6
NYCRR§701.17). The best usage for Class G5B waters is as a"receiving water for disposal of
wastes." (Id).
Class GSB waters,based on this definition, underlie all of the SCWA North Fork wells.
An impediment to the use of injection wells is that, notwithstanding the definition of Class
GSB waters, the designation is not assigned to"any groundwaters of the State." (6 NYCRR
701.18). If SCWA deterniines to pursue the use of underground injection wells, SCWA could
petition the Commissioner of DEC to classify the waters beneath the SCWA wells as Class GSB
waters. The Commissioner has the authority to make such a classification provided she finds
"that adjacent and tributary groundwaters and the best usages thereof will not be impaired by such
� classification." (Id.).
10. Other Disposal Options
Other methods of disposing waste could include the purchase and operation of a
36
destruction module to treat perchlorate brine. Destruction modules destroy the perchlorate in the
brine leaving the brine intact. The brine can be either re-used or discarded. Operation and
maintenance costs for a destruction module is estimated to be $0.40 per 1,000 gallons treated.
The capital costs are estimated to be in the million dollar range.
1 l. Treatment of water with high nitrate levels
SCWA wells impacted by high nitrate concentrations are currently blended with water
with lower nitrate levels as per NYS Department of Health regulations. In addition, at the Old
North Road wellfield, SCWA treats water with elevated nitrate levels through an ion exchange �
system.
B. Develop new water sources within the Town
' SGWA explored the possibility of constructing additional well fields within the Town.
SGWA currently owns several properties, which under normal circurnstances would support the
-operation of a wellfield. However, upon closer examination, there are technical and financial
issues that a;i�ect developing a wellfield on the sites. Two constraints on SCWA's ability to
develop-new wells in the Town are the praximity ofwetlands to many SCWA lioldings and the
marginal.groundwater quality. Iri addition to the noted constraints, if the perchlorate standard
was lowered; SCWA may 6e£or:ced to install treatment_facilities at the site.
,. New wellfields would require clearing to allow the construction of a chemical treatment
building and the wells. The chemical treatment building is appro�mately 20 foot by 40 foot with
a<peaked roof that is approximately 15 high. The chemical treatment building is accessible to
vehicles via apaved driveway. Clearing at the site is kept to a minirnum.
Additional structures may be constructed at the site depending on whether treatment to
remove contarnination is required. These types of structures could range from a 20 foot by 40
foot building that is 23 feet high to house a GAC unit, a 10 foot by 30 foot building to house an
ion exchange system or a 20 foot high 12 foot diameter above ground waste water holding tank
built within a 20 foot by 40 foot building with a peaked roof that is approximately 32 feet high to
house waste water generated by an ion exchange system or a very large building to house a
membrane filter system. The buildings could be constructed of wood or steel and could have a
brick facade with a steel or asphalt shingle roof.
Financially the cost of developing a 200 gpm North Fork wellfield is estimated at
$650,000.00. The capital cost per gpm is $3,250.00. In comparison, the cost of developing a
3,900 gpm wellfield in areas to the west is$1,900,000.00. The capital cost per gpm for these
wellfields is $487.00. Thus it is approximately 6 times as expensive to develop a sma11 capacity
North Fork wellfield as it is to develop a higher capacity welifield in the western portions of the
County.
37
1. North Road, Greenport
SCWA owns a 10.5 acre site at the east end of the town near Moores Lane. Saltwater
underlies the site at a depth of approximately 90 feet. In addition, adjacent to the site are
regulated freshwater wetlands. Given these constraints the site could only support shallow wells
of limited capacity(50-100 GPM). For the foregoing reasons,_the Department of Environmental
Conservation may be reluctant to grant a permit for the operation of any larger capacity wells on
the parceL
2. Laurel Lake West, Laurel
SGWA owns:a seven acre parcel located to the south of Sound Avenue which is bordered
by a�large County parcel. The parcel is in close proxirnity to Laurel Lake along with several other
freshwater wetlands which limits SCWA's ability to establish additional wells at the site. The
SCWA is currently seeking approval for three additional 100 gprn wells on the existing Laurel
Lake site,which is almost 92 acres in size. The Department of Environmental Conservation,
citing concerns ori the impacts to the wetlands in the area, has required SCWA to perform
specialized tests in support of these applications.
3. Alvahs Lane;Cutchogue
This 7 acre site located in the center of the Town of Southold was the subject of a recent
test boring to determine the options for well construction. The test boring revealed that the
shallow depths are�high in nitrates making them unsuitable for water supply purposes. The deeper
zone that contained water of relatively good quality was very close to the salt-water interface and
as such would only yield a small volume of water(SO-100 gpm). Tlus low yield makes the site
uneconornical to develop. In addition, the site is not within the Water Service Area. Likewise,
test wells on nearby;agricultural lands showed promise but sustained pumping may degrade the
water quality based on similar experiences at the SCWA's Evergreen Avenue wellfield.
4. Middle Road, Peconic
This 38 acre site is currently utilized as a well field and contains two 50 gpm shallow
wells. Original plans for this well field included the installation of up to six 50 gpm wells. These
plans were changed in light of concerns of the NYS DEC regarding lateral salt-water intrusion
from nearby Goldsmiths Inlet. Pernutting of any additional wells at this site is questionable and
would yield little useable water.
C. Transmission of water produced outside the Town of Southold to serve Southold
SCWA investigated the potential for developing public supply wells in areas west of the
Town of Southold, in the Central Pine Barrens and transmitting the water produced by the wells
into the Town. Raw water analysis of wells in the areas to the west of the Town stand in sharp
38
contrast ta water quality on the North Fork. While North Fork raw water is some of the most
compromised within the County, water frorn the west is virtually free of any human induced
contamination because of a complete and continuous lack of human activities in these areas.
When compared with the high costs of filtering and treating North Fork raw water, any
future drinking water sta.ndard restricting newly regulated chemical constituents or changing
developrnent paite�ns would be of no co.^xsequen��-�;,we11s Iocated in the Central Pine Barrens
watershed.
1. Proposed Flanders Wellfield
SCWA owns 9.0 acres of land located at Oak Avenue in Flanders. The parcel is located
within the Core Preservation Area of the Long Island Central Pine Barrens region. Land uses
within the Central Pine Barrens are governed by the Long Island Pine Bari-ens Pratection Act of
1993 (Environmental Conservation Law Article 57)and the Central Pine Barrens Comprehensive
Land Use Plan. 'The Act divides the roughly 100,000 acre Central Pine Barrens into two distinct
geographic areas,�the Core Preservation Area and the Compatible Growtli Area.
The Gore Preservation Area is composed of approximately 50,000 acres in which
development activities are regulated by the Act and the Commission. Approximately 38,000 acres
are-in-public ovvnezslzp-an�-w:ll not be developed. (Central Pine-Barrens 7oin�Planning.an�.
Policy Commission website, October 2, 2002). Groundwater recharge flowing from these �
f' nondevelopable lands is of high quality. Recharge to groundwater can be compromised by the
� development activities on the lands through which the water passes. Criven the lirnited
developznent potential of the recharge areas for the Flanders wells, SCWA is reasonably confident
that the wells at the Flanders site would produce high quality water for the foreseeable future.
a. Proposed wells at Flanders Property
Test wells at the Flanders property demonstrated the ability to develop two (2)wells each
with a capacity of up to 650 gpm. If such wells were developed, the site would produce 1,300
gpm. Prior to operating these wells, SCWA would have to apply for a DEC permit authorizing
their operatiori.
b. Cost analysis
• i. Cost to develop
SCWA estimates that developing a fully operational wellsite at the Flanders property
would cost $1,500,000.00. A fully operational wellsite would include two (2)wells, a chemical
treatment building, yard piping, electrical controls, Supervisory Control and Data Acquisition
equipment and chemical feed equipment.
39
ii. Replacement cost based on 2002 dollars '
Based an a capital cost of$1.5 million, SCWA would have to put aside between$1.0 and
$1.5 million in 2003 dollars to pay for a replacement wellfield 'in 50 years depending on the rate of
investment return and the rate of inflation.
c. Life Expectancy
SCWA experience indicates that wells developed in regions sirnilas to Flanders have a life
expectancy of 50 years.
d. Design
An advantage of developirig wells at the Flanders property is that filtration of the water is
not required. Thus no large buildings housing filtration systems or waste water tanks would be
constructed. Ra.ther the site would be developed with a 20 foot by 40 foot chemical treatment
building with a 15 foot high peaked roof and two concrete boxes housing the well heads. A
portion of-the site would be cleared to allow access to the wellheads and the chemical treatment
building. However, SCWA strives to minimize the amount of clearing at its wellfields. In
adaitian-s�me paving would-iie insialled-to facilitate_access-ta-the wellheads-aind�hemical
-treatment builcling.
2. Potential Routes-Flanders to Southold
Appendix 10 is a map highlighting three potential routes for a transmission main from
Flanders to an interconnection with the SCWA Southold system. Two of the routes interconnect
-with the SCWA system on Main Road in Laurel. The third route ends at the SCWA Laurel Lake
well field.°Each of the routes begins at the Flanders wellfield and proceed northerly. A '
. directional drill would be required to crass the Peconic River. After crossing the ri�er, the main
would be installed along County Road 105 to Indian Island Park and then across the park ta
Hubbards Avenue, crossing the LIRR tracks near Hubbards Avenue. From Hubbards A�enue,
each route proceeds in a different direction.
a. Route 1 -Peconic Bay Boulevard
Under this proposal 11.24 miles of main would be installed. From the Hubbards Avenue
departure point,the main would be installed in Meetinghouse Creek Road to Pecozuc Bay
, Boulevard, The majority of the mains would be installed in Peconic Bay Boulevard, parallel to an
existing main to an interconnection at Main Road..
b. Route 2 -Main Road
Under this proposal 10.65 miles of main would be installed. Fronr►Hubbards Avenue, the
40
main would be installed in County Route 105 to Main Road. The main would be installed in Main
' Road from County Road 105 to an interconnection with the SCWA system in Laurel.
c. Route 3 - Sound Avenue
Under this proposal 11.98 rniles of main would be installed. The main would run from
Count�;-R�U�e 1 O5 north of Hubbards Avenue to Northville Turnpike. Then procee�l`aiong
Northville Turnpike ta Sound A�enue to an interconnection with the SCWA system at Cox Neck
Road.
3. Flanders Transmission Main Issues
Waterproduced by wells developed at the Flanders property would need to be delivered
into Southold via a transmissiori main. SCWA analyzed three different sized mains, a 24 inch
diameter main, a 30 inch diameter nnain, a 36 inch diameter main, to transmit the water.
a. Main capacity and retention time �
A main's�capacity varies depending on the route of the main. As the length af the main
increases, the amount of water that can be in the main also increases. Likewise,_r�tention time,
the amount oftime the wateLisWwithin the main also irc�eases-euith--th�length of the main.
-Retention time:does decrease as the usage rate increases. The following table shows the capacity
{, and retention times of va.rious main sizes and routes for the Flanders to Southold main.
Size(inches) Capacity(M.G.) Retention time at Retention time at
, usage rate of 5,000 usage rate of 7,500
gPrn gPm
Route 1- 24" 1.39 M.G. 4.63 hrs 3.08 hrs
Route 1- 30° 2.18 M.G. 7.27 hrs 4.83 hrs
Route 1-36" 3.14 M.G. 10.47 hrs 6.97 hrs
Route 2 -24" 1.32 M.G. 4.40 hrs 2.93 hrs
Route 2-30" 2.07 M.G. 6.90 hrs 4.60 hrs
Route 2- 36" 2.98 M.G. 9.93 hrs 6.62 hrs
Route 3 -24" 1.48 M.G. 4.94 hrs 3.29 hrs
' Route 3- 30" 2.31 M.G. 7.72 hrs 5.14 hrs
Route 3-36" 3.33 M.G. 11.11 hrs 7.41 hrs
41
Retention time is an important consideration in designing a system because water quality
can deteriorate if.the retention time is too high. During periods of low flow, in order to maintain
the proper chlorine residual, a chlorine booster injection system may need to be installed. At low
flow times excess main capacity could be recharged in existing Southold wells to be withdrawn
during the summer months. Periods of low flow would be anticipated in the winter months.
b. Cost analysis
i. Capital Costs
The following table sets forth the estimated capital cost for the dif�erent routes.
Route Size in inches Capital Cost
. 24 $8,650,000.00
Route 1 -Peconic Bay Boulevard 30 $12,650,000.00
36 $13,650,000.00
24 $13;650,000.00
Route 2-1Vlain Road 30 $17,650,000.00
, 36 $18,650,000.00
. 24 $9,500,000.00
Route 3-�Sound Avenue 30 $13,500,000.00
3� $14,500,000.00
ii. Operation and Maintenance Cost
SCWA estimates,based on its,experience, that the annual cost to maintain a water main is
$0.12 per foot of main installed. In addition, operating the Southold transrnission main would
require power beyond that which is traditionally required to operate a main because of the
considerable length of the transmission main. The electrical cost incurred by SCWA to pump
water to the Town would depend on the amount of water transmitted.
c. Expected life span of transmission mains
Ductile iron pipe and polypropylene pipe installed by directional drills have an estimated
life expectancy of 100 years.
42
4. Other potential wellfields �
SCWA is investigating the feasibility of developing new wells closer to the Town of
� Southold. These wells would produce water from the same aquifer system as the proposed
Flanders wells. Ideally, these sites would be located along the one of the proposed Flanders to
Southold transmission routes. By locating the wells along or near the transmission route,
�d�itional tr-�smission mairs would not be-r�eded. Reducing the amount of main which must be
installed would lessen the environmental and fiscal impacts of the proposal.
a. Hallockville Museum Farm site, Hallockville
SCWA is investigating the potential for establishing two wells on the property of the
Hallockville'Museum Farm site. The Farm is located in the Town of Riverhead on the north side
of County Route 48 just to the west of the Southold border. CDM rnodeled the impacts on the
Magothy aquifer of withdrawing 1 mgd from two Magothy wells at Hallockville. CDM
-`r�etermined that"[t]he maximum decline in the water table is [expected to be] 1.55 feet. To the
south;just north of Route 25, water table impacts are simulated to be less than 0.1 feet." (CDM
at 4). CDM also analyzed the effects of operating the wells on the salt-water interface. Directly
beneath the well, the interface is"estimated to rise approximately 75 feet." (Id.). CDM modeled
the well under steady state conditions, and under real conditions, "it may take many_.y_ears before
tne-same magnitude ef interface movement is ouserved." (Id.-}._
�� Prior to placing wells developed at Hallockville into production, SCWA would be
� required to obtain DEC permits. DEC may require additional study of the impacts that the wells
would have.
If wells were developed at Hallockville, water would be transmitted into the SCWA
Southold systern via mains installed along Sound Avenue. The mains would connect with the
existing SGWA system at Gox Neck Road in Mattituck or piped to tlie Laurel Lake facility.
b. Design ,_
An advantage of developing wells at the Hallockville property is that filtration of the water
is not required. Thus no large buildings housing filtration systems or waste water tanks would be
constructed. Rather the site would be developed with a 800 square foot peaked roof chemical
treatment building and two concrete boxes housing the well heads. A portion of the site would be
cleared to a11ow access to the wellheads and the chemical treatment building. However SCWA
strives to minimize the amount of clearing at its wellfields. In addition, some�paving would be
installed to facilitate access to the weliheads and chemical treatment building. SCWA would
work with the owners of the museum to develop the site in a manner that minimizes the visual
impact of the wellfield.
D. Purchase and Transmission ofwater from Riverhead Water District
43
i
i
�II
SCWA approached the Town of Riverhead Water District to determine whether the Water
District could provide water from its system ta the SCWA Southold system. Presently, a single
interconnection exists between the SCWA system and the Riverhead Water District's system at
the Southold Town line on Peconic Bay Boulevard. In addition, there are interconnections on the
� wzstern end of the Riverhead system. Through the Southold interconnection SCWA has the
avil_ity to supplement its Southold system by purchasing water from Riverhead during periods of
____ high demand. Likewise, R.iverhead has purchased water froin S�CWA through the I
interconnections in the western end of its system. ��
The Riverhead Water District maintains approximately 10,500 services throughout the
Town of Riverhead. The district is divided into three zones, Zone 1, 2 and 3. Capital facilities of
the District include eleven wells and pumping stations, four elevated storage tanks and standpipes,
a booster station and a ground storage tank. (H2M at 2-1). Approximately 214 miles of main in
varying sizes is maintained by the District. (Id at 2-3).
In response to SCWA's request, Riverhead hired the H2M Crroup, the Water District's
consultant to analyze the potential for supplying water to SCWA. The consultant analyzed three
alternatives. The first involved providing water to the Southold system at the three locations
where a_road crosses from the Town of Riverhead into the Town of Southold. These locations
are the existing Peco�ic�.ay Boulevard i�terconnection, and propc�ee�-'-1`✓��in-�:c�ad and Sound
A.venue i.nterconnections. The second alter-native involvec�-�onneating_ia.rge tramrsmission mains
transmitting water from outside the Town to the Water District at one of three different locations.
Supplying water to the Water District systern would enable the Water District to provide water to �
SCWA through the existing ar proposed interconnections. The third alternative invol'ved
constructing a new well in the Water District to generate a supply of water which could
transmitted to the Southold Town line. A copy of the report is included at Appendix 11.
� The goa] of the H2M study was to"determine how much water the Riverhead Water
District can supply to the SCWA without negatively affected [sic] the existing distribution system
and the Riverhead Water District consumers:" (H2M at 5-2).
1. Supplying water developed in the Water District to SCWA Southold system
H2M modeled the effects of supplying water to SCWA at Peconic Bay Boulevard,Main
Road and Sound Avenue in differing amounts. Using a computer model HZM was able to
predict, the effect, if any on the Water District, under hypothetical conditions of supplying water
to SCWA. For modeling purposes, the evaluation was run under peak day demand conditions
under the assumption that the largest IZiverhead well site was out of service. By using these
conservative parameters,H2M was able to predict the maximum amount of water that Riverhead
could supply to Southold under a worst case scenario. Additionally, these scenarios would ensure
that the Water District did not commit to providing more water than feasible to SCWA.
The model demonstrated that if 2,500 gpm of water or more was to be supplied to
44
SCWA at any interconnection there would be significant pressure drops throughout the entire
eastern portion of the Riverhead low zone. In fact, at some locations, the model predicted a
pressure reading of 0 psi. The minirnum acceptable pressure readings is 35 psi. (H2M at 5-2).
SCWA could obtain 1,500 gpm of water at a proposed Sound Avenue interconnection
witli no adverse impact to the Water District's ability to provide water to its customers at
acceptable press�re levels. U!?der--t?�.:s proposal;the existing main on Sound�v�iiue from Pier
Avenue to the Southold line would be transferred into Riverhead Water District Zone 2.�
Furthermore, three valves on Sound Avenue at Pier Avenue, Manor Land and Herricks Lane
would need to be closed isolating the main on Sound Avenue. This would create two long dead
end mains on IVlanor and Herricks Lane. As noted by HZM the option of creating a Zone 2
interconnection on Sound Avenue, "would provide the least impact on the Riverhead Water
District pressures while supplying 1500 gpm to SCWA." (H2M at 5-4).
2. SCWA supply of water to Riverhead Water District and Water District supply to
Southold system
Another method for providing water to the SCWA Southold system would involve SCWA
developing water ta the west of Riverhead and then transmitting the water into the Riverhead
systern: This praposal�ould increase the amount of water within the Riverhead system. H2M
-a�ralyzed how much water the District could supply to S�uthold, if_SCWA pr-ovided a constant
-supply of 100 psi water at three locations within the Town.
t
a. SCWA cannection at Hubbard Avenue
Under this scenario, SCWA water would be transmitted into the Town and connected to
the Riverhead system at Hubbard Avenue and provide 100 psi at the interconnection. Under
these assumptions, the Water District could provide 2,000 gpm at the Peconic Bay
intet-connection. If the existing water main along Peconic Bay Boulevaxd was upgraded from 12
inch rnain to 16 inch�main from the interconnection location to the Town line, 2,500 gpm could be
provided to SCWA. (H2M at 5-4-5).
b. SCWA connection at Main Road
If SCWA provided an interconnection to the Riverhead Water District at the intersection
of Main Road and County Road 105, the Water District could supply 2,000 gpm to the SCWA
Southold system at Main Road. If the water main between Herricks Lane and the Southold Town
line along Main Road was upgraded from 12 inch to 16 inch the amount of water that could be
provided would be 2,500 gpm. The Water District could deliver 3,000 gpm at the Town line if
the 12 inch main along Main Road was upgraded to a 16 inch main from South Jamesport Avenue
to the Town line. (HZM at 5-5).
c. SCWA connection at Northville Turnpike and County Road 105
45
If SCWA provided water at 100 psi to the Riverhead Water District at the infersection of
County Road 105 and Northville Turnpike, the Water District could provide up to 2,000 gprn to
SCWA at the Sound Avenue interconnection. (H2M at 5-5-6).
3. Installation of new well within Riverhead Water District
H2M analyzed the amount of water the Riverhead Water District could provide to SCWA
if a new well was installed on Tuthill Lane in Riverhead. According to the H2M model, if a 1,400
gpm well was cleveloped on Tuthill Lane, Riverhead could deliver 2,500 gpm at the proposed
Main Road. HZM did issue a caveat when discussing this alternative in tliat test wells at the
Tuthill Lane property indicated the presence of elevated chlorides which may be indicative of
increased potential for sa.ltwater intrusion. If operation of the well does indeed cause salt water
intrusion, the capacity of the well may be less than 1,400 gpm which in turn reduce the amount of
water available to SCWA at Main Road. (HZM at 5-7).
E. Conservation Programs and Potential of Reduced Demand
One method of decreasing demand on the SCWA Southold system would be to implement
mandato'ry water conservation programs. The goal of such programs would be to lessen demand
to.the extent that si�rufieant infrastructure improvemen�s-w�suld be unnecessary.
SCWA does not possess the legal authority to mandate conservation programs.
Notwithstanding, SCWA., in light of the demands of its system has taken steps to lessen demand.
First, SCWA does not permit new customers to make more than one tap into the public water �
system. A trend was developing in which custorners would apply for a separate tap that would be
used solely for irrigation purposes. Water used for irrigation purposes represents the largest use
by a typical customer. By preventing such taps, water demand can be reduced.
Second, SCW.A has encouraged the Town in reviewing subdivision and buil,ding permit
applications to limit the amount of land that can be placed into irrigation dependent uses. These
restrictions,typically in the form of clearing restrictions or the requirernent that native or drought
tolerant plantings be used, can only be applied by the Town. When implemented,these types of
" restrictions lessen the amount of water which would be used for irrigation purposes.
Third, SCWA with the cooperation of the Town and the North Fork Environmental
Council initiated a program to distribute water conservation kits to individuals in Southold. .These
kits alXow homeowners to retrofit water using devices to reduce the amount of water the devices
use. The program, in place since early summer 2002, has distributed approxirnately 250 kits to
Southold residents regardless of whether they are SCWA customers or not. To promote the
pragrarn, SCWA placed advertisements in local papers, on local radio stations and made
telephone calls to SCWA customers in the Town via an automated phone system.
Each kit contains information on the importance of conserving water, a low flow shower
� 46
head, twci low flow aerators, and a leak detection tablet to locate leaks in toilets. SCWA
continues to promote the program and will include information on it on the water bills of its
Southold customers. Furthermore, SCWA plans on interviewing people who have used the kit to
gather information on the water savings devices.
Despite these efforts, even if expanded, it is not anticipated that an appreciable reduction
-ir��vater demand-would oecur. Furtherniore, the potential impac�oi a iower perchlorate standard
would significantly hinder SCWA's ability to meet e�sting demand, let alone increased demand,
absent infi-astructure improvements.
F. No action alternative
Under the no action alternative, SCWA would continue to rely on its existing wells
suppletnented on an as needed basis with water obtained from the Riverhead Water District to
supply the Town of Southold. Once commitments equaled the capacity of the system, no new
connections to the public water system, even to areas on the Water Service Area Map could be
entertained. Under this scenario, 5CWA may face the untenable position, in contravention of its
fundarnental mission, of denying water to e�sting homeowners who experience private well
failure. Changes to the perchlorate or other standazd could put SCWA in the position of not
being able to meet existing demands, unless one of the other options described above was
implemented.
i,
47
V. Impacts
A. Short ter :�d long term, cumu:ztive irnpacts
l. �� :r treatment at e�st::.:g SCWA wellfields
a. Short term impac::�
Short ter -�pacts assoc'iated w:r.h developing treatment facilities at e�sting wells are the
construct'ron imF� �. Additionally, ther��may be minor, short term impacts related to a tanker
truck visiting the. ��very four days to remove waste water from the site, depending on the type
of treatment.
b Long term impac::�
If SCW�':. �barks on a program of treating the water produced at the existing Southold
wellfields, no ad� j:�a1 capacity will be�reated. Therefore,the system would be designed to
serve current cu�. ;�ers and would be without the capacity to serve additional Town residents.
The long term irt �ts would be minimal, in that current customers would continue to be served,
-and-no-additiona, sidents could be served.
The amo�. af water being withdrawn from the Southold aquifer would not increase
markedly and rec �ge would occur in the areas from which the water was withdrawn.
Long ter: �npacts would include the visual impact of constructing treatment systems at
the wellfields. T �reatment facilities could include an ion exchange system, GAC filters and a
membrane based er. If an ion exchange system with on site regeneration was implemented a 10
foot by 30 foot t� :iing with a peaked roof that is 25 feet high would be constructed. In addition
a 20 foot by 40 f: �. building with a peaked roof of 32 feet would be constructed to house a 12
foot in diameter toot high waste tank. The waste tank building would have a garage style door
to allow a tanker :tck to access the tank.
If a ion e- �.ange system with off site regeneration system was developed at the site a 10
foot by 30 foot t ding with a 25 foot peaked roof would be constructed. The building would
have a garage st�: door to facilitate access by a tanker truck to remove the spent resin from the
system.
If a GAC �it was required at the site a 20 foot by 40 foot building with a peaked roof of
23 feet high wou; be constructed. The building would have a garage style door to facilitate
access by a tankE: cuck to remove the spent carbon from the system. The spent carbon would
either be landfille ��r incinerated by the company which remaves it from the facility.
If a mem� :ne based filtration system was implemented at the site a large flat roofed
_ 48
building on the order of tens of thousands square feet would be constructed. The building would
have a roof that is approximately 15 feet high.
Any building constructed would have either a wood face, a brick facade or be made of
steel. The roofs could be metal or asphalt shingle. SCWA,to the extent possible, would design
the building in a manner that conforms to surrounding buildings and minimizes the visual impacts
of the buildings.
An additional long term impact would include the disposal of the contaminated waste
water if an ion exchange system was constructed at the wellfield. If the treatment system was
removing perchlorate from the groundwater, a perchlorate rich brine would result. Moreover, the
waste water may have elevated levels of other contaminants. This waste would be trucked from
the site in�large tanker trucks. The tankers would need to remove the waste every 4 days. �
If a waste effluent was generated, SCWA would propose discharging the effluent at the
County sewage treatment plant in Babylon. Currently the plant has no limitation on the levels of
perchlorate that it can handle. If standards are adopted, disposal at the plant may not be an
option. `Treatment at the County plant would not remove the perchlorate from the waste stream.
Rather it would pass through the system and be discharged into the Atlantic Ocea.n where it could
adversely affect marine life.
�h-e�environmental impact and-fmancials costs of implementing such a limited water supply
� plan would be significant. SCWA would need to invest significant resources both financially and
operationally to design, construct and operate the systems and would not receive any increased
benefit; increased capacity, frorn its expenditure. In addition, open ended waste disposal fees
would always be associated with the systems.
c. Cumulative impacts
Gumulative impacts associated-with treating water at the existing wells would be the visual
-impacts of the treatrnent system, the waste issues associated with disposing of either waste water
from an ion exchange system, spent resin from an ion exchange system or spent carbon from a
GAC unit, and the increased energy consumption associated with the treatment system. �
2. Develop new water sources within the Town
a. Short term impacts
Developing new sources within the town will result in short term disturbances due ta the
construction activities associated with developing the new wells. Economic impacts would
include the high cost of developing a low capacity well, as is typical on the North Fork. SCWA's
experience has been that the cost of developing a well in Southold can be approximately six times
as high as developing a large capacity well in the western portions of Suffolk on a gallon per
49
rninute basis. Moreover, the Southold wells typically have much lower capacity for t'he reasons
previously discussed. Therefore, the money spent to develop low capacity wells in Southold
could be otherwise used to develop higher capacity wells outside the Town's boundaries.
b. Long term impacts
Long term impacts associated with new sources within the Town would be the same as
those analyzed in Section V(A)(1)(b)if the new wells required treatment. Given the likelihood , •
that any new wells would eventually require treatment,these impacts would most presumably
occur. If new wells were developed in response to increased population in the Town, long term
impacts of salt�water intrusion or other types of contamination may be increased due to increased
production from the wells.
c. Cumulative impacts
Cumulative impacts could include growth inducing impacts. These are addressed below.
3. Transmission of water produced outside the Town of Southold to serve Southold
-a.- Short term impacts �
Short term impacts would include the disturbances associated with the construction of
new wells to the west of the Town and the impacts of constructing a water transmission main to
connect to the SCWA system in the Town. Other impacts include financing the cost of the
improvements.
b. Long term impacts
Typically in SCWA service areas, water is recharged to the aquifer system in the general
vicinity from which it is drawn. In so doing, a regional balance is maintained in the aquifer
system, with the amount of water being removed for human activities equal to or less than the
amount being recharged from human activities and rainfall. It has been estimated that
approximately 85%of the water served in unsewered areas is returned to the aquifer. (WSMWPS
at 15, citing Franke and McClymonds, 1972). Transmitting water into the Town may impact the
amaunt of water being recharged. SCWA commissioned a consultant to study the potential
impacts to the Southold aquifers, if any, from the increased recharge. As discussed below, an
increase of a maximum of 0.4 feet could be anticipated if 5.0 mgd of water is transmitted into the
Town. �
i. Water transmiited from the Pine Barrens
Camp,Dresser and McKee(CDIV�modeled the effects of recharging water transmitted
from the Pine Barrens into the Town of Southold. CDM based its model on the proposal to
50
transmit up to 4.0 mgd of water from the Pine Barrens. Using the calculation that SS% of the
� water transmitted or 3.4 mgd would be recharged to the aquifer, CDM concluded:
The maximum water table increase is estimated to be less than 0.3 feet. Since
developrnent, and therefore water use, is concentrated closer to the coast
(especially the southern coast), returning the imported water evenly across the
rnodel domain may n���ecessarily provide ari accu;a��ssessment of the actual-
� water table impacts. It is expected that the increase would be less than 0.3 feet in
the center of the fork, since less water would be returned in that area, and more
water would be returned closer to the coast.
CDM at 3.
After the increase of 0.3 feet in the water table, a hydrogeologic balance between the
amount of water recharged and the water discharged from the aquifer would be achieved and
further increases would not be anticipated.
No adverse.impact to Central Pine Banens aquifer would be anticipated because the water
rechar.ged to the area would be much greater than the amount withdrawn. In addition, the limited
potential for development in the area would lessen the possibility that new wells would be needed
-to serve.the c3�rnands ofthe area.
i` ii. Water transmitted from Hallockville Museum Farm site
Assuming 85%of the 1.0 mgd of water was transmitted from the Hallockville Museum
Earm site into the Town would be recharged to the Southold aquifer, CDM concluded:
The iznported water was returned evenly to all model elements east of the most
westerly existing supply wells, located just west of Mattituck Inlet. The maximum
increase in the water table was found to be less than 0.1 feet in the center of the
island, and nearly zero along the coast.
CDM at 4.
As with the anticipated increase of 0.3 feet increase in the water table from the recharge of
3.4 mgd transmitted from the Pine Barrens, once the increase of 0.1 feet was realized, no further
increase attributable to the transmission of water from Hallockville Museum Farm site is
anticipated.
Long term impacts would also include the visual impacts of constructing new wellfields,
ensuring the water maintains a proper chlorine residual as per Section IV(C)(3)(a) above, the
ability of SCWA to entertain new connections to its system, and the ability to extend mains into
previously unserved areas. Depending on the arnount of water transmitted into the Town,
51
additions to the existing 5CWA system could be entertained thereby increasing the number of
SCWA customers in the Town. Furthermore, additional capacity would allow SCWA to consider
water main extensions to heretofore unserved areas in accordance with the Town's
comprehensive plan.
Development of new wells.within the Core Preservation Aiea would not affect SCWA's
ability to provide water to the residents in the area of the wells for two reasons. First, sufficient
capacity exists within this portion of SCWA's system. Second, significant new development is
not anticipated given the restrictions of the Article 5'7 of the Environmental Conservation Law.
However, there also may be some positive impacts to wheeling water into the Town. The
outfall for the Greenport Sewage Treatment Plant is located in the Long Island Sound: This
discharge is a net loss of recharge to the aquifer system. Bringing water into the Town and
recharging it in the Town will help restore this net loss to the aquifer system.
c. Cumulative impacts .
� Cumulative impacts could include growth inducing impacts. These are addressed below.
�: Puscn�se and transmissian ai wate:-frorn Riverhead Wate�Distriet
a. Short term impacts
The Riverhead Water District analyzed three different options for providing.water to
SCWA at the Southold town line. Under each scenario additional interconnections between the
Southold and Riverhead system could be required.
If an interconnection is developed at Main Road, water main will need to be installed from
the Laurel Lake'facility to the Southold town line along Main Road. SCWA may need to
investigate locating a main from the Laurel Lake facility in the property owned by Nofo
Associates because Main Road just to the west of the Laurel Lake facility entrance passes under a
railroad trestle. The road dips to pass under the trestle. This dip in the road, makes it di$'icult to
install a water main and move water through the main efficiently.
Approximately 7,268 feet would need to be installed to connect between the Town line
and the Laurel Lake facility.
If an interconnection is developed at Sound A�enue, water main will need to be run from
Cox Neck Road west along Sound A�enue to the Town line. This will require the installation of
appro�cirnately 8,300 feet af main.
If either interconnection is created the mains installed would front Agricultural District
parcels. Installation of the mains would trigger review pursuant to the Agriculture and Markets as ,
52
, �er Section VI(F)(4)(a)below.
i. Supplying water developed in the Water District to SCWA
5outhold system
This alternative will have the fewest impacts. Under this scenario, the Riverhead Water
District would se1l-�aier to SCWA that it develaped by its current system. Infi-astructure
jmprovements would be limited to establishing the Sound A�enue interconnection. HZM
determined that the least impact to the Riverhead Water District would occur if the District
supplied SCWA with 1,500 gpm at the Sound Avenue interconnection. The impact to the
Ttiverhead aquifer system of recharging water in the Southold aquifer is not considered significant
given the limited amount of water that is proposed to be transmitted into Southold.
ii. SCWA supply of water to Riverhead Water District and Water
District supply to Southold system
The impacts associated with this proposal are similar to those analyzed under the proposal
to develop supplies in the Pine Barrens and transmit them into the Town of Southold. The only
difference is that the transmission mains would interconnect with the Riverhead Water District
systern,rather than interconnectwith the Southold system._Theimpact to the aquife�sy.stem.from
which-the-water-is withdrawn is not�eonsidered significant giver��ne amount tr:aa�smi�±�d would be
�ar]ess than the amount recharged. If new wells are proposed to supply the water to Riverhead,
, as part of the DEC application will analyze this potential impact.
iri. Installation of�new well within Riverhead Water District
Under this proposal, the Riverhead Water District would develop a new well at Tuthill
Lane.-Development of the well would require DEC approval, at which point site specific
environmental;impacts would be addressed, including the impact to the Riverhead aquifer of
recharging the water produced by the well in Southold.
b. Long term impacts
Depending on the amount of water purchased from the Riverhead Water District,the long
term impacts would be very similar to those discussed under the section VI(A)(3)(b) above.
a Cumulative impacts
Cumulative impacts could include growth inducing impacts. These are addressed below.
.5. Water,Water Quality Treatment and Water Supply Districts
The Town of Sauthold retains the authority to propose the creation of water, water
53
quality treatment and water supply districts to serve its residents. The mechanism for creating
such property tax districts requires the preparation of a map of the proposed district, an analysis
of the source of water supply for the district inhabitants and approval at a public referendum from
the residents of the proposed district. (Town Law 190-c).
Impacts associated with the creation of a water district would be the growth inducing
impacts associated with creating the district. Moreover, the Town would face many of the same
issues facing SCWA in providing water to the Town's residents while relying only on Town wells
and addressed in the"No action alternative section."
The creation of water districts may have growth inducing impacts by increasing the
amount of water available within the Town. In addition, depending on the location of the
districts, consistency with the Water Service Area Map may not be ensured.
6. ' �No°action alternative
a. Short term impacts
Under the no action alternative, SCWA would continue to rely on its existing wells and
a�rater obtained��m the RiverheacLWate:-��s��ic�4o-sap�ly the Town of Sou�hol�: �nce
commitments equaled the capaci'ry�£the syste�,-r.c new connections to the—Yab�ic water syste�
even to areas on the Water Service Area Map could be entertained. SCWA may face the
untenable position of denying water to existing homeowners who experience private well failure.
Likewise,fire protection will remain the same in the Town because no additional water will be
available. SCWAprofessionals will need to continue to aggressively manage the SCWA system
to minimize the potential impacts to the aquifer system.
b. Long term impacts
If the perchlorate or other standard was lowered to levels below those experienced in
existing SCWA�wells,the wells would need to be shut down, further reducing the available water
within the Town. Under this scenario, SCWA may not be able to meet the demand of its existing
customers.
B. Adverse enviranmental impacts that cannot be avoided
l. Water treatment at existing SCWA wellfields
If increased treatment at the existing SCWA Southold wells is required to treat and
remove perchlorate or other chemical, the amount of waste which must be disposed would also
increase. The environmental impacts that could not be avoided would include the waste
generation and the environmental impacts associated with trucking the waste from the site. In
acidition, if the County refuses to accept the waste or places restrictions on the concentration of a
54
particular contaminant in the waste stream, SCWA could be forced to pre-treat the ef�luent prior
to disposal.
Visual impacts would accompany the development of treatment systems within the Town.
All of the above impacts would be avoided if water is transmitted into the Town.
2. Develop new water sources within the Town
Developing new sources of water within the Town to replace existing contaminated
sources should not have unavoidable adverse environmental impacts provided the wells did not
require treatment. If treatment was required, the impacts noted above would accompany
development of the wells.
`However;SCWA has been unable to find new water sources within the Town that do not
-require treatrnent. Thus, the same unavoidable impacts as treating existing wells would occur.
These would-be;a�oided by transmitting water into the Town. �
3. Transmission of water produced outside the Town of Southold to serve Southold
including purchasing water from Riverhead
The operation of new wells-would not have unavoidabl'e adverse impacts because they
would be operated pursuant to Department Environmental Conservation pernuts. The net impact
�' of the increased recharge from water produced outside the Town in the Town was demonstrated .
to be negligible. Any construction activities would involve temporary disturbances which would
cease upon completion. If the water purchased from the Riverhead Water District is surplus no
impacts would be anticipated given the limited amount of water to be transmitted. In addition,the
H2M model.indicated that the Town could sell 1500 gpm to SCWA with the least impact to the
Ri�erhead system. If new wells.are installed, the impact on the area supplying the water would be
analyzed as part of a well pernut application.
4. No action alternative
Impacts of the no action alternative include the inability to serve those areas designated by
the Town to receive water service. In the event the standards are changed or the water quality
changes, SCWA would be forced to stop serving water to its current customers or serve water
that does not meet the standards. Maintaining the status quo will result in the operation of a
system that is undersized to meet current demand and to serve those areas designated for water
supply.
These impacts would be avoided if water is transmitted into the Town.
C. Irreversible and irretrievable corrunitment af environmental resources
55
'1. Water treatment at existing SCWA wellfields �
Treating water produced by the e�sting well network would involve visual impacts due
the construction of treatment systems and the buildings to house the systems. In addition, the
disposal of the waste generated by the treatment system would be an irreversible and irretrievable
commitment of environmental resources. Treatment systems would require an ineversible and
inetrievable commitment of energy resources. If an injection system was developed to dispose of
wastes into groundwater, there may be an irreversible and irretrievable commitment of the
groundwater resource receiving the waste.
Any impacts associated with the production of the water at the wells would be reversed
upon ceasing use of the wells and removing the treatment facilities.
2. Develop new water sources within the Town
Development of new sources af water within the Town would have the same irreversible
and irretrievable commitment of environmental resources as would treating water from existing
wells discussed in the preceding section because it is unlikely that SCWA will be able to develop
new wells in the Tawn that do not require treatment of some kind.
3. Transmission ofwater produced outsiae-the Town of Southold•tomseav� Soutnold
The visual impacts associated with construction of new wellfields may involve the '
commitment of irreversible and irretrievable environmental resources particularly if wells are
developed in the Core Preservation Area of the Central Pine Barrens.
There would be no irreversible and irretrievable corrunitment of an environmental �
resources according to the Camp Dresser McKee analysis if water was transmitted into the Town.
As the study noted the hydrogeologic balance in the Town would not be compromised by
transmitting up to 5.0 mgd of water produced.outside the Town.
In addition, any impacts associated with the production of the water at the wells would be
reversed upon ceasing use of the wells and removing the treatment facilities. Installation of a
transmission main will have limited environmental impacts which would be mitigated during
construction.
4. No action alternative
Maintaining the status quo of the existing SCWA Southold system would not involve the
irreversible and irretrievable commitment of environrnental resources except that SCWA may be
forced to deny water to those with existing wells which are or become contaminated.
D. Growth inducing impacts
56
The Town of Southold controls the amount of development that will occur in the Town.
Through a combination of zoning initiatives, planning efforts and resource managernent plans, the
Town Board will deternzine the course that development in the Town will take. SCWA, to the
e�ent possible, will cooperate with the Town in developing a water system that is responsive to
� Town objectives with respect to its planning goals. However, SCWA daes not have the ability to
control growth in the Town.
SCWA strives to provide a safe, high quality source of water to its customers. It has
consistently endeavored to provide water that is reasonably priced. As noted earlier, sufficient
groundwater exists in Southold's aquifer system to provide for the present and future needs of the
Town. Estimated treatment costs for providing this water are quite high. However, on a smaller
� scale,under the right circumstances, it may be economically justifiable for a developer to create a
private water system to treat the water. This economic incentive exists regardless of whether
SCWA buttresses its own system.
Two factors which may affect the pace of development are SCWA fees for new �
connections to S'CWA system and the consistency requirements of Agriculture and Markets Law
Section 305(4).
A SCWA study detenmined that providing water on the North Fork is more costly than in
almost a11 otl�er areas of Suffolk. SCWA determined that on average-to provi�e the r-esources to
supply a 1 inch connection to its system, it eosts appro�mately$3,000.00 more than elsewhere.
{ And this cost rises proportionally with the size of the connection. The increased costs are due to
limitations on the.size of the wells that SCWA can develop,treatment costs,the need to provide
backup water sources and maintain.pressure for fire protection. In order to recoup these extra �
costs and in order to not have the rest of its customers subsidize the North Fork customers,
SCWA-charges a key money fee for connections to its system. Iinposition of this fee may reduce
the financial incentive to connect to the SCWA system.
Implementing components of a Water Supply Plan will make prpvisions for increasing the
amount of water available in the SCWA Southold system. Even though the supply of water will
be increased there will still be casts associated with accessing the increased supply. For example,
if a developer wants a main extension along an improved road to serve a subdivision, they must
pay for a main e�ension. At a projected cost of$43.00 per foot, large main extensions are
expensive. Within a subdivision, installing water mains in unimproved roads, costs $31.00 per
foot. If the cost of a public water main e�rtension is high enough, it may be less expensive for the
developer to build and operate a private water supply systern. Thus,there would be no growth
inducing impact attributable to SCWA actions.
The second factor that could limit the growth inducing potential of inereasing the amount
of water in the SCWA system is the consistency provisions of Agriculture and Markets�Law
Section 305(4) addressed in Section VI(F)(4)below.
57
One area where increasing the amount of water in the SCWA system may have growth
inducing impacts is in the development of infill lots in developed areas. In some cases, these
undeveloped lots are essentially barred frorn development given their size constraints. Often
absent the provision of a public water supply, a private well and sanitary system cannot be
physically located on these parcels due to the setback requirements of the Suffolk County
Department of Health Services. If a sanitary system and private well with requisite setbacks
cannot be located on fhe parcel, the Health Department will not approve the lot for building.
Many of these lots are located on existing water mains and are not within Agricultural District#l. •
Therefore, the cost of main extensions and the consistency provisions of the Agriculture and
Markets Law would not apply to their development. Key money and other fees would still apply
to the development of these lots and SCWA would be hard pressed to deny a tap to an existing
main fronting these parcels.
Some growth inducing impact may occur if increasing the amount of water in the .
Southold system facilitates the development of these otherwise undevelopable parcels. It is
important to note that there is an appeal process by which an owner of these lots who was denied
the right to build by the Health Department could request a hearing with the Suffolk County
Department of:Health Board of Review. The Board of Review is empowered to authorize
development on the parcel absent the pravision of public water.
E. Impact-on use.and-conservation of energy
1. Water treatment at e�sting SCWA welLfields
innplementation of treatment systems at existing wells will increase the amount of energy
, consurned by SCWA operations. As noted in the alternatives section, some of the treatment
options, such as desalination plants, have the potential to be large energy consumers. Treatment
in any form will require an increase in the energy demands on SCWA.
2. Develop new water sources within the Town
New wells within Southold will.require a cornmitment of energy to power the wells. If
treatment is required at the wellfield, the energy demands will increase. However, if the wells are
replacement wells, the net amount of energy consumed by SCWA may not increase because there,
would be an energy savings from the well which was retired.
3. Transmission of water produced outside the Town of Southold to serve Southold
Developing a source of water outside the Town and transmitting the water into the Town
will require energy for two purposes. First, energy will be needed to power the new wells.
Second, energy may be required to operate booster pumps to move the water through the
transmission mains into the Town. The net impact on the amount of energy consumed by SCWA
may be minimal if the new wells replace existing wells in the Town.
58
4. Purchase and Transmission of water from Riverhead Water District
The energy impacts under this alternative would be similar to those addressed in Section
VI(E)(3) above.
-5. No action aiternative
Under the no action alternative, there would be no marked change in the amount of energy
required by SCWA. SCWA would continue to rely on the existing wells. If the perchlorate
standard is lowered and such action requires SCWA to place treatment system on existing wells
then it can be anticipated that additional energy will be required to operate those wells.
F. Impact on and Consistency with Special Cri-oundwater Protection Area Plan, Critical
Environmental Areas, Water Supply Management&Watershed Protection Strategy and
Section 305 of the Agriculture and Markets Law
1. Special Cnroundwater Protection Areas
Environmental Conservation Law Article 55 calls for a detailed staternent of the effects of
any proposed act�on-on, and-it�consistency with, the SGPA Plan.
{` The SGPA Plan contains general policy considerations that are�pplicable to all SGPAs
and specific recommendations for individual SGPAs. The general policy corisiderations include:
(1)a nondegradation policy, (2) a policy of maximum retention and protection ofundeveloped
areas, (3)the development of watershed rules and (4)the strengthening of regulations and
enforeement of laws that further the aims of the SGPA. (SGPA at 2-4).
The nondegradation policy includes the use of Best Management Practices(BMP)for
reducing impacts associated with residentiallawn areas, comrnercial and golf course turf due to
the use of agricultural chernicals. The policy regarding undeveloped lands includes public
acquisition of watershed land surfaces, limiting density permitted development by mandatory
cluster zoning based on five acre residential zoning, providing sewage treatment facilities for ,
multi-family units or condominium developments and limiting new industrial and nonessential
commercial uses.
The goals of the watershed rules policy are: (1)to establish standards that ensure the
protection of groundwater quality, (2)to define the types of activities that are compatible and
incompatible with areas of protection, (3)to emphasize the importance of non-point controls, (4)
to coordinate regulatory controls of contaminating activities to protect groundwater quality, and �
(5)to define zones of management and protection around wells within or proxirnate to SGPAs.
(SGPA at 2-10).
59
The Plan specifically recommends monitoring of a11 sanitary waste discharges of greater
than 1,000 gallons per day, advocates local zoning changes to prevent groundwater
contamination;it suggests that e�sting potential sources of pallution be allowed to continue
subject to periodic review by the county health department and local water supplier and states that
existing"wet"businesses should be connected to existing sewage treatment plants with discharges
outside anci d�wn g;ad;�::4=of SGFAs. The Plan recommends that an inventory o�-e�sting
commercial industrial facilities be taken to determine if they are degrading water and that
� monitoring wells be installed where such potential exists.
The SGPA nondegradation policy focuses on land use activities that cause a degrading of
groundwater quality. Consistent with this policy, SCWt1 is examining a range of options in order
to minimize reliance on one source of water to supply the needs of the residents of the Town.
Implementing a balanced approach of water supply will reduce tlie potential that SCWA will
degrade water quality at any given well due to over pumping which could cause saltwater
intrusion or spreading of contaminants within the aquifer. SCWA will abide by the general policy
of nondegradation by examining and selecting alternatives that balance reliance on wells in the
Town with the potential impacts to the aquifer if the wells are overused, including, if appropriate,
supplementing the water produced in the Town with water produced outside the Town. Through
the careful monitoring and balance of pumping of these wellfields, the qua.ntity and quality of
S_GPA=groundwater can be maintained_so that its�:se, function and enjoyment will continue.
Implementation of the water supply plan should not have significant impacts to the
SGPA's general policy regarding undeveloped lands. Land use decisions are outside the
jurisdiction of SCWA and rest largely with the Town. The Town can control the character of its
comrnunities through its planning initiatives. For a discussion of the�potential impacts to
agricultural-land resources and growth and character of the comrnunity or neighborhood see the
sections above.
SCWA does not have specific powers to institute or enforce watershed rules. However, it
is in SCWA's best interest to fully participate in measures for watershed protection in the
Southold SGPA if reliance on existing or new wellfields in the Town is a component of its water
supply plan.
a. Southold SGPA
The Southold SGPA encompasses more than 2,900 acres. It extends from Mattituck Inlet
on the west to Southold Hamlet on the east. The southern border is the Long Island Rail Road
and the northern border is north of County Route 48. (SGPA 3-117). The Plan's
reconnmendations specific to the Southold SGPA include: (1) continuation of farmland
development rights acquisition programs, (2) zoning of farmland at one dwelling unit per five
acres together with an incentive for the transfer of development rights to sites outside the SGPA
at a density of one dwelling unit per two acres, (3} mandatory clustering at a density of one unit
per five acres, (4) limiting residential development to infilling in existing developed areas around
60
� Peconic, Cutchogue and just west of Southold hamlet, (5) improving irrigatian practices, (6)
changing the type of crops to ones that reduce the need for agricultural chemicals, (7)public
acquisition of the few remaining wooded sites for future use as wellfields as needed. (SGPA at 3-
121). The Plan also states that in order to provide for the water supply needs of the entire Town
of Southold, well sites be established in the vicinity of Laurel Lake. Consistent with the SGPA
Plan, SCWA operates wells at its Laurel Lake facility.
b. Central Suffolk SGPA North
A small partion of the Town in the vicinity of Laurel Lake is included in this SGPA. In
addition to the general recommendations discussed above, a set of specific recommendations for
this SGPA were included in the SGPA: These recomrnendations include: (1)locating new
business development within the boundaries of the existing commercial areas or outside the
SGPA, (2) creating a watershed preserve consisting of approximately 200 acres in vicinity of
Laurel Lake, (3)continued acquisition by the Town and County of development rights under the
Farmland Preservation Prograrn, (4)the conversion of the former mining operation and the small
industrial uses on Sound Avenue to residenfial uses, and (5) amending the zoning code to prevent
expansion of commercial activities within the SGPA. (SGPA at 3-94). Consistent with the SGPA
recommendations, SCWA has purchased appro�mately 110 acres of land in the vicinity of Laurel
Lake. Together with the Town and the County, SCWA will continue to.pursue opporiunities to
protect_additonal acreage in the area.
( c. Central Suffolk SGPA South
The Central Suffalk SGPA South generally extends from Wading River Road in the west
along Route 24, the Peconic River, and Riverhead-Hampton Bays Road on the north, Red Creek
Road on the East, and South Country Road and Sunrise Highway on the South. It incorporates
portions of the Tawns of Brookhaven,Riverhead and Southampton.
Pursuant to Article 57 of the Environmental Conservation Law("ECL"), upon ratification
by the towns and�adoption of the land use plan by the Central Pine Barrens Joint Planning and
Policy Commission,the consistency provisions of article 55 are no longer required for activities
proposed for the Central Pine Barrens. �
Land uses within the Core Preservation Area are strictly limited. .Among the pernutted
activities in the Core Preservation Area are public improvements undertaken for the health safety
or welfare of the public and work by any utility performed for the purpose of public health, safety
or welfare. More specifically, the Act provides that any work pertaining to the water supply for
the residents of Suffolk County is pernutted in the Core Preservation Area. (Environmental
Conservation Law § 57-0107.). This provision would include the development within the Core
Preservation Area of public water supply wells to supply water to the Town of Southold.
2. Critical Enviranmental Areas
61
� The proposed action will not adversely impact the Critical Environmental A.reas(CEAs)
designated by the Town of Southold because it does not affect the host of state and local
regulations safeguarding the CEt3s. These CEAs include Cutchogue Harbor Wetlands,Hallock's
Bay, Dam Pond, Downs Creek, Orient Creek, West Creek,Richmond Creek and Beach,Brush's
Creek, Cedar Beach Creek, Corey Creek, Deep Hole Creek, Goldsmith's Inlet,Halls Creek,
Goose Creek, Little Creek,Mill Creek, �+?�-pipea Cove Creek. Mo�t of the CEA.s ar-e tidal
waterways. Desalinization, although previously considered as a treatment option, is not
considered a viable option given the costs involved. Thus, SCWA would not be affecting the
quantity of water within the CEAs. Furthermore, as noted earlier, if water was transmitted into
the Town of Southold,the recharge of the water would increase, albeit by a minuscule amount,
the underflow to wetlands.
The proposed action could increase the amount of water available within the SCWA
Southold system, however, new development will still be subject to local and state oversight. If
for example a parcel along one of the CEAs that is presently undevelopable absent the provision
of public water is developed after receiving public water that action would not compromise the
CEA's quality. Compliance with the standards af the Suffolk County Department of Health
governing the on-site disposal of reaharge from the parcel would ensure the quality of the water
within the CEAs is not compromised. In addition,both the Town and the State have wetland
regulations_which would-govern the siting ofanystmcture that is-pr-�posec'1 for a location near a
tidal wetland. Thus,=SCWA p]an woul'a not aaect the water quality-oft:�e-^EAs. For-a discussion
of the growth inducing aspects of the proposal see the above section.
3. Water Supply Management&Watershed Protection Strategy
Southold Town endorsed the Water Supply Management&Watershed Protection
Strategy(the"Strategy")in June 2000. The Strategy combined a review of existing conditions,
prior studies, land protection measures, analyzed growth factors and trends, made findings and
noted opportunities for managing growth and proposed action strategies to achieve the Strategy's
goals.
Two action strategies relative to water supply issues were discussed. The first strategy
consists of two parts involving the coordinatian of the installation of water mains. The strategy
endorsed the practice of installing water mains and providing public water to high density areas in
the Town. High density areas occur mainly along the southern coast for the Town. Second, for
planning purposes and water supply purposes, limits on the installation of mains in the agricultural
areas of the Town, which coincide with the Southold SGPA, were proposed. Agricultural areas
have been identified by the Town as areas worthy of preservation and the implication is that the
installation of water mains would encourage the conversion of agricultural lands into non-
agricultural uses. (Strategy at 73). Indeed,the Strategy earlier notes, "the availability of public
water mains is expected to increase the potential for growth in a number of areas in [the] Town
where development is currently limited." (Strategy at 61). Additionally,by installing mains in
high density areas and not in the agricultural areas, the water resource below the agricultural areas
62
would be available to serve the high density axeas and would not be overburdened by being
utilized to serve both areas. (Strategy at 73). SCWA has installed mains in accordance with the
Map adopted by the Town which implements this strategy.
The second action strategy addressed supplying water to those areas of the Town for
which mains were not to be installed. Endorsed options for these areas included the creation of
"satellite" supply facilities, limited/restri�d main extensions, relief rrom-trn��standards of the
Suffolk County Department of Health concerning private wells and the creation of water supply
districts. (Strategy at 74).
4. Agriculture and Markets Law
a. SCWA actions
Suffolk County Agricultural District Number 1 is comprised of approximately 260 parcels
. totaling appro�mately 5,850 acres within the Town: See Appendix 2. The District is not�
delineated by a line or.f�ed boundary but rather consists of its member parcels. Parcels within the
District enjoy tax savirigs and some protection from claims of neighbors concerning farm
practices. (Two parcels with a combined acreage of roughly 81 acres are on Shelter Island). If a
public benefit corporation, such as SCWA, proposes to fund the service of water to non�farm
structares within the Disfirict, the Agricultar-e-an�1Vlarkets.Law requires tl�e impact to the
13gricultural District be analyzed and alternatives selected that minimize adverse impacts to farm
i enterprises. Adverse impacts could include encouraging the conversion of Agricultural District
parcels to non-agricultural uses. Section 305 of the Agriculture and Markets Law sets forth a
procedure for reviewing such impacts and for selecting a.lternatives that minimize the impact.
SCWA's proposal does not involve providing water to non-farm structures within the
Agricultural District. Rather the proposal involves the creation of a water supply.plan that could
be implemented to provide water to the Town: If an applicant for public water was within the
Agricultural District, consistency and compliance with Section 305 would be required if SCWA
was to fund the e�ension of water service to the applicant. Likewise, if a governmental unit was
to fund such an extension, they would also be obligated to perform the review under Section 305.
Such review would be perFormed at the time of the application. This review would apply to those
projects that SCWA finances through the Environmental Facilities Corporation or if the main
e�ension was to take advantage of SCWA's 75 foot allowance for the installation af main.
SCWA's adoption of a water supply plan is consistent with the Agriculture.and Markets
Law because it requires site specific impacts be analyzed pursuant to Section 305(4)if a main
extension or connection to serve an Agricultural District parcel is to be paid for by SCWA or by a
governmental unit.
b. Action by private individual within Agricultural District
63
Section 305(1)(d)provides that if land within an Agricultural District, enjoying the tax
benefits assaciated with the district, is converted to non-farm uses, the owner of the land would
be subject to payments and interest based on the amount of real properiy taxes saved by virtue of
being within the Agricultural District. Avoiding incurring these payments providea a financial
incentive mitigating the potential for the conversion of farm land to non-farm uses if a water main
i�-installed nea�tre_Agricultural District land. ,
64
�I. Mitigation Measures
?. Water treatment at existing SCWA wellfields
Impacts associated with various treatment systems would be mitigated by transrnitting
��ater from outside the Town. This would eliminate or greatly reduce the need for extensive
treatment systems. Alternati��iy;�creatment systems could be limited to large capacity wells,
limiting the need to haul and treat waste from many treatment systems. This would also reduce
the proliferation of scattered treatment systems throughout the Town.
� Mitigation measures could include only developing treatment at wells with large capacity,
and developing a system of injecting the waste generated by the treatment system in the saltwater
below the site. By limiting the installation of treatrnent system to large capaciiy wells the amount
of construction would be reduced and some economies of scale achieved. If a system of injecting
waste into the saltwater below the wells was developed and permitted by DEC, SCWA would nat
have to truck the waste from the site to the County's Bergen Point S'IP in Babylon.
Gare:could be taken to ensure,that to the extent possible, new buildings conform to
e�sting land uses sunounding the wellfield. �
B. T�ansmissi�n af water produced outside=the�'own of-Southold to ser-v��oufhol�
` Conversely, the relatively small impacts associated with transmitting water from outside
the Town, the slight increase in the water table level, would be mitigated by installing treatment
systems at certain wells within the Town. A balance between utilizing sone treatment systems in
the Town and transmitting some water from outside the Town would potentially minimize the
impacts of each alternative.
Visual impacts of constructing a wellfield at the Flanders property can be mitigated by
minimizing the amount of clearing at the site. The buildings could be located in the center of the
site to minimize the potential that they would be seen from off-site. The structures constructed on
site could have low roof lines so that the roof do not extend above the surrounding trees. At the
Hallockville site, the buildings could be constructed so that they resemble farm buildings. The
wells at the site could be located behind the existing buildings so that they would not be visible
irom County Route 48.
Long term impacts and growth inducing impacts can be mitigated through the means
identified in Sections(D), (E), (F)below. Implementation of the opportunities identified rnay
]essen the dernand for water in the Town, reducing the amount which would be needed to be
transported into the Town and thus reduce the amount recharged in the Town. Reductions in the
amount of recharge will mitigate the minor impact to the aquifer system identified by CDM.
�:. Purchase and Transmission of water from Riverhead Water District
6S
Mitigation measures that would be appropriate under this alternative are the same as those
identified in the prior section.
Establishing a new interconnection between the Southold system and the Riverhead Water
�istrict would require the installation of water rnain either along Sound A�enue or Main Road.
Un�et�ither route; the-^��,.�:n would front on Agricultural District parcels. In order to minimize
the potential that the installation of the mains would pzompt the conversion af the Agricultural
�istrict parcels to non-farm uses, SCWA could dedicate the mains as transmission mains only and
not pernut service connections to either.
D. Opporturaities for Preserving Agricultural Lands
Opportunities e�st that if implemented would preserve the quality of groundwater
rEcharge from lands surrounding existing SCWA wells fields and would prevent agricultural lands
from being converted to non-agricultural uses. Each of these opportunities is discussed below.
l. 'Eliminate SCWA's 75 foot rule allowance for projects converting agricultural
lands
=�G�`J�i currently has a provision by which i4 granirs-ar,ra�lowance of 75 feet of-free-a�atpr
main for residential units which are not locate�-an an-e;.is;:ir��-�riain. -'�I�e applicant rece��✓es-an
allowance equal to the installation of 75 feet of water main as part of the SCWA's extension of
mains to serve the applicant's house. SCWA could eliminate this allowance for main extensions
that involved the conversion of agriculture lands to residential development and mitigate growth
inducing impacts.
2. Agricultural Watershed Program
In an effort to improve water quality at three e}cisting well fields which are predominately
surrounded by agricultural operations, the SCWA will provide grants to the farmers of land within
the zone of capture of the wells. These grants will be made on the basis of the farmers
participation in the Agicultural Environmental Management(AElV�program sponsored by the
Natural Resources Conservation Service and administered by Cornell Cooperative Extension
(CCE). CCE will be responsible for establishing AEM practices which will be geared to achieving
certain contaminant reduction goals each year. Eligible properties must be used for active farnung
and cannot be fallow land,unless that is an AEM protocol for one growing season.
Farmers would be asked to sign up for a minimum of five years and each year the SCWA
would match on a dollar for dollar basis, AEM grants issued for the farm operation. The SCDHS
would be involved in reviewing SCWA's raw water sampling data, to track presumed reductions
in contaminants during the five year time period.
The candidate well fields, near the United States Geologic Survey mapped groundwater
66
divide and/or within the Southold SGPA, are: North Road east of Horton Road; Ackerly Pond
e:�st of Ackerly Road and south of County Route 48 and Evergreen Drive west of Depot Road,
s;x�th of the Long Island Railroad. Other eligible farms would be those in the zones of
��ontribution of SCWA wells as identified by the Source Water Assessment Progam.
3. Opportunities afforded by the Agriculture and Markets Law
� a. Government and Public Benefit Corporation actions
As noted earlier, if SCWA or a governmental unit was to fund the provision of public
u�ater to non-faxm structures within the Agricultural District, Agriculture and Markets Law
rcquires that SCWA or other entity demonstrate that the proposed action minimizes adverse
ir,.ipacts on agriculture. This demonstration would take the form of a study that analyzes the
proposed project, its impacts and the reasonable alternatives: The Commissioner of Agriculture is
e�npowered to restrain a public entity from funding the project if adverse irnpacts to the
r�gricultural District could occur and require the entity to act in a manner consistent with one of
the alternatives analyzed or the Commissioner may select another alternative that would minimize
the adverse impacts to the District. If mains were installed in front of Agricultural District
parcels, SCWA could designate the mains as transmission mains and not permit service
connections to the mains.
b. Action by individuals within Agricultural District
£�
� Mitigating the potential for canversion of farmland to non-farm uses after the installation
oFpublic water supplies are the provisions of 305(d)(1) ofthe Agriculture and Ma.rkets Law. The .
iaw provides that the owner of farm land to be converted to non-farm uses be required to pay,
among other things, five times the amount of money saved in real property taxes by being
included within an Agricultural District.
4. Opportunities for County of Suffolk
Several opportunities_exist for the County of Suffolk to reduce the amount of farmland
which is converted to non-farm uses. A reduction in the amount of farmland so converted would
aiso reduce the need for public water to serve the structures on the converted farmland.
a. Purchase additional lands and developrnent rights from farms within the
Town of Southold
Suffolk County has a number of programs that provide for the purchase of land and
cievelopment rights frorn farms. Continued implementation of these programs will reduce the
�11?ount of land that can be developed in the Town of Southold. Reductions in the availabie land
for development will likewise reduce the demand for public water. A brief summary of two of the
programs follows.
67
i. Suffolk County Drinking Water Protection Program
Under this program, revenues from a special sales and compensating use t�of 1/4 of 1%
provide funding for sewer district tax rate stabilization, environmental protection and property tax
mitigation. Within the environmental protection category funds can be expended, for among
other things,the purc:ha�e-of lands within SGPAs,the puzcha�s�of lands that are necessary for
maintaining the quality of surface and/or groundwater.
Additionally,the program provides for funds for the purchase of farmland development
rights. The purchase of farmland development rights ensures that farm generating the
development right can not be converted to non-farm uses.
ii. Community Greenways Fund
By xeferendum in 1998, the residents of SufFolk County approved the issuance of$62
, million in bonds to fund the purchase of open space lands, active parklands, farmland development
rights and the creation of an educational center.
b. Continue Agricultural District Number 1
Agricultural District Nuriber 1 was created for a eight year period-whiclz-expires+a2003�-
i�ursuant to the Agriculture and Markets Law,the Suffolk County Legislature can continue,
modify or ternunate the district upon reports of the County Agricultural and Farmland Protection
Board and the County Planning Department pursuant to Agriculture and Markets Law Section
303-a. The County could recoznmend that the District be extend for either 12 or 20 years as
permitted by the�law rather than eight years and work to add more properties to the District.
. c. Implernent Recommendations of Suffolk County Agricultural Protection
Plan
In 1995; Suffolk County was awarded a$50,000.00 grant to prepare an Agricultural
Protection Plan by New York State. The resultant plan was released in June 1996 and adopted by
the Suffolk County Legislature. It contains recommendations on measures which slow the
conversion of farmland to non-farm land uses. If the recommendations of the plan are
irriplemented and the conversion trends slowed, the need for public water to serve structures on
converted farmland would be lessened.
E. Other Opporlunities for Mitigating Impacts
. 1. 1Vlandatory Restrictions on Irrigation Dependent Vegetation and Clearing Amounts
A local law could be adopted, implemented and enforced by the Town limiting that
arrLount of irrigation of any lot to 15% of the lot's area. The restrictions could be incorporated
� 68 .
into any building permit issued by the Town. By encouraging the retention of native areas,
limiting clearing and restricting the amount of irrigation that could be operated on a specific
parcel, demand for public water cauld be reduced. The single biggest use of SCWA water at
residential units is for landscaping needs. By requiring that new developments limit the amount of
irrigat'ron that can be installed, this demand would be lessened. This would have a twofold
advantage. One, it would reduce demand, lessening potential for overpumping; and,two, demand
wo.ulct be reduced during critical summer r�onths wlren ine system is most heavily used.
Additionally, such restriction would increase the quality of recharge to the aquifer.
Implernentation of this recommendation would be consistent with the recornmendations of
the SGPA Plan and would be further protective of groundwater quality than upzonings to 5 acres
alone. The restrictions could take the form of covenants and restrictions imposed by the Town in
reviewing all future subdivision and building permit applications.
2. Mandatory Water Saving Devices
The Town could require new buildings to install water saving devices, such as low flow
�faucets and toilets. These devices would reduce water consumption in the Town.
3. Non-c�ntiguous cluster program
; a. Development ofundersized parcels
An opporiunity exists for the Town to harness the rnarket forces on the development of
undersized; according to current zoning, infill lots to protect lands it identifies as"critical"
through the creation of a non-contiguous cluster program. Under the program,the potential
developer of the infill parcel that has less area than current zoning requires, would be required to
.acquire a right before the infill lot could be developed. The right would be allocated to an owner
of a critical parc�l based on the critical parcel's current zoning. The rights would be allocated
only after the owner of the critical parcel makes a promise�n the form of an easement to maintain
a specific land use on the critical parcel. These rights would have significant value by allowing
otherwise undevelopable lots to be developed. As discussed eaxlier, infill lots, previously denied
development with private wells receive a benefit when public water mains are installed in the
roads abutting these parcels.
The amount of rights that would have to be redeemed before an undersized parcel could
be developed would be equal to the difFerence between the area of the infill parcel and the amount
of area required by infill parcel's current zoning. As an example, an 10,000 square foot parcel in
� an area that requires 40,000 square foot of area would need to acquire 30,000 square feet of
development rights.
Frequently, the undeveloped lots are in high value areas and there is significant financial
69
incentive to develop them. As the value of developing them increases, the amount of money a
developer would be willing to spend to buy a right that would authorize their development would
increase. As this amount increases,the owner of the critical parcel may find it in their best
interest to sell the developer the rights associated with the critical land. In fashioning a program,
care could be given to ensure that it is completely voluntary, relies on market forces, and provides
significant financial incenfive for participation.
Adoption of this program would be advantageous to SCWA for three reasons. First, infill
lots are generally located in areas of existing water mains. Thus SCWA would not be required to
install large main extensions to serve new development within the Town. Second, as development
rights are purchased from critical lands,which could include farm lands, the potential for
conversion of farmland would be reduced. Third, the reduction in the conversion of such parcels,
would lessen demand for lengthy main extensions into agricultural areas,which would rnake the
cost for converting other farniland to non-farm uses lower.
b. Other uses for non-contiguous cluster rights
Increasing the incentives for using non-contiguous cluster rights will increase the market
demand for such rights and increase the price for the rights. A method for increasing the demand
for the rights-i�-to require the redemption of non-contiguous cluster rights whenever an
undersized lot is proposed for deveropment. The amount of rights required would be equal to the-
difference in the undersized parcel size and the area requirements of cunent zoning.
For example, currently the Zoning Boasd of Appeals has the authoriiy to allow a parcel
that was the result of a merger of smaller lots to be unmerged. The Town could adopt
amendments to its zoning code that mandate the redemption of rights if a proposal to unmerge a
merged lot is received by the Zoning Board of Appeals.
Additionally, the Zoning Board of Appeals could be prohibited from granting lot splits that
result in the creation of undersized parcels without the redemption of non-contiguous rights.
4. Mandatory Clustering and Conservation subdivisions �
The Town could adopt locallaws requiring mandatory clustering and conservation
subdivisions to minimize the destruction of farmland and woodlands which would reduce the
amount of run-off and recharge of degraded water to the aquifer. Conservation subdivisions
lessen the total potential demand for public water by reducing the number of units that could be
built.
70
VII. Works Consulted
Agriculiure and Markets Law, Article 25AA—Agricultural Districts, Section 305, Agricultural
districts; effects.
Camp, Dresser, &McKee, Memorandum, Groundwater Modelin� of Redistribution of East
-�'ampin�;N��pn?i�er, 2002.
Central Pine Barrens Joint Planning and Policy Cozrunission, Central Pine Barrens Comprehensive
Land Use Plan Volume 1� Policies Pro�rams and 5tandards, 1996.
Central Pine Barrens Joint Planning and Policy Commission, Core Preservation Area Estimated
� Parcel Status bv Ownershi�and Land Use as of April 1 2002
(http://www.pb.state.ny.us/chart_core.htm).
Environmental Conservation Law, Article 57, Lonp Island Pine Barrens Maritime Reserve Act.
Environmental Protection Agency,Perchlorate,
http://www.epa.gov/safewater/ccUperchlor/perchlo.html.
E�NJ:=Nor-theast, Camp Dresser&Me�{ee,North Forl�VVater Supply Plan Suffolk Countv STew
York, 1983.
i
�
HZM Group,;Riverhead Water District. Suffolk Countv New York Distribution Svstem
Evaluation&Hvdraulic Model, HZM Project No.: RDWD 02-63, 2003.
Leggette, Brashears& Graham, Inc., Ground-Water Availabilit�n the Incorporated Village of
Greenport, Lon I� sland, 1996.
Leggette, Brashears& Graham, Inc.,Master Plan for Providin� a Public Water Su�plv to the
Town of S�outhold New York, 1992.
Long Island Regional Planning Board, The Lon�Island Comprehensive Special Groundwater
Protection Area Plan, 1992.
Nelson,Pope&Voorhis, Town of Southold Water Supply Mana�ement&Watershed Protection
StrateQv, 2000.
� New York Department of Environmental Conservation, Critical Environmental Areas in Suffolk
Countv, http://www.dec.state.ny.us/website/dcs/seqr/cea/ceasuffolk.html.
Public Authorities Law, Title 4, Suffolk Countv Water Authority.
. 71
Sui�olk Caunty Department of Health Services, Summarv Perchlorate Monitorin�of Water
Su�plies in Suffolk Countv,NY, 2001.
Suffolk County Planning Department, 1999 ExistingLand Use Inventory Eastern 5uffolk Countv,
2000.
Suffolk County Planning Department, 1999 Land Available for Development Eastern Suffolk
Count , 2000.
Suffolk County Planning Department, Saturation P�ulation Analvsis Eastern Suffolk Countv,
2001.
Suffolk County Water Authority,Draft Environmental Im�act Statement For Laurel Lake Well
Fie1d One Million Gallon Elevated Stora�e Tank, 2002
Suffolk County Water Authority,Findin s Statement (Laurel Lake One Million Gallon Elevated
Stora�e Tankl,'2002
Suffolk County Water Autharity,Full Environmental Assessment Form For Acauisition of
ixree�ort Water System; 1937.
Town Law, Article 12, District and Special Improvements.
6 New York Codes Rules and Re lagu tions Sections 701.15, 701.16, 701.17, 701.18, 701.19,
701:21 and 701.22. .
72
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(For the Period January 1;2001,,to December 31,2001) ' , www.scsva.com
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. ... �: auffolk�County ilVater �uthority ., . � �
- � {InclUding•`da#a for Fe�r Harbor Garrip�Hero;Rivers�de and Sfon�Brook Water Districts) ' `��
. : ..' .. . . , . . ��n,t���,�t�..��.'.r,�e�,s`�,�''"°a-�d�"�ri ��'''�' „. .. . ,. ,'�.c�x�.�a1.��'�,�,��,3�',c���'�1?F.��'
;S,.S s9ILALn__S�'
The Suffolk County. Water � ' ' ., ,. • ... �
�,.:.:: ,, .. ,. ` ,
Authority is currendy servins:�more;.., . ,. ,' ,. .'. .:' ' . ,
. tham a million people, and we'again � �
have good news fo;all our customers � �� �� � ; " ., , .
in�,ouc.latest Annual, Vyater Quality , '��i � ,
.,h Reporta Throughout o1u 51 yeaz h�s; ;.',Y`"'�£J +x ���'' i , �
ttTry;the$CWA'hes never violated a { , '��t , a A � I ; .
r '�`�
��;�` 3lla �W,C 8CC Vt'.n! �� � �� r.l`{, r :..� � . .. . .
pleased:co be a.b�..lre.�tore onto ybu t6at + ' �'� . •
°""�•�t1��"���CECC¢��'���C(�e�811�.. � �..2w,.,. r.�"�'. Ai.a.,rtb�44�7�is�W-�AMagq�� , ,. � � y.
state.fiealth,standards for drinking: :U:.. • ' ' r-� � : . ;i' � �
water dunng 2001. ' , ,'S"' ��'�F�� �, � , , x�; ,
.:,. . _ .;. ;� :; . • .:., i.; t '� ;�
., .
+, f'-' °:'�
.: � .. _ �, . • '
, '�Ws�an_:make this statement "''` ��.�'=_- _r5 ;;... ` :
becau'se:we.tested•uigre,than Z4,p00, ; �: � 5,` �� •
v .�amples;l�tye.a�at,ourstate-.pf� �' L : y, .'• ;
� laboratory in Hauppauge We `� '� c _ �
coliect samples;�'rom every wel►s�e.� " - �' ���. •
�..y�.� y,�r�t,^�,� �. 7
the system on�a regular bas�s and�arc����; N� ' ' �''rfy.' ;„ .' ;
curre�YUy tesd"ng foT,'approx�mately�" ' �� l�� . °
300�chemical:conshtuents, ]00'more�' ' s�{i;r:t � � � .
. _„ _ \�,,i. . ..
than regwred�b'y'fedeial'and state reg= �, � � '' "':';� , .' ' `� �� „
ulaliori. Through'th�s extensrve moni- , "'r�r. _ �- • �• .-��-ti-• .
toring program, our dab director`and Q;.�; ;�. � ' r � r� � • •'
t ",;s. � n:b Gf�. . �2 }'u'.:. ;`-q�c+_.._.. .
her .staff.know if.any'SGWA�Wel] ., ..s>i• _ � .;., �: . . . . .
needs to be�removed�from service, ��'���'�" �:''�'�"-• r':� •'•^� • , • ,, -
either permanenUy or until appropriate re�nediation.can be.irt�ple- our c6emists in parts per million,.(mg/L) or parts per billion
mented. • � (ug/L). In aimost all cases,you will see the notation"ND"which
.,. . . .. .. _ . ,...,•_...............,.�,_...._ ...,... . . means that the chemical was not detected at all.
- As in past years,this document al�o contains general,infor- � -
.r..,,r.
mation about oiu,s'y,stem as well as!soqje:of the results of the tests We hope this repbit; ancl'ttie suggextions,it contains for
we did last year.You will find explanat'ion"s"of many ofthe water obtaining even more detailed�information,will help you get
quality standaz8s'we monitor. and:a,Water Disuibution Area coinpl.ete, accurate answers.�o an,'y'questions y.ou may have
Index. This enables you to find the•number of the table showing concerning the quality of�your drinking water,. (The Sufi'olk
results on watei samples that were taken from your area and to County Water Authority is required to mail this.statement to
co[np'are the'results.with"[hose from.oiher areas.. The re�dings each customer by state and federat law.) '
reported in these ta6les.list some of thesubstaiiices measured by
Este intorme aonilene iMormecion mu'y imporlante sotire su agua bebec Traduzcalo o hable con alguien que lo entfenda b(en.
. � _. . -. '
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� �
. . . WH�R�.C�C�E�-:�E��E� 'N��iTEE�� �Ql1��� �R�R�'?�-;�, _:'..� ;
fn genunl,thc wurcu of drinking watcr(both up wamr and batied wemr)can i�xludc rivcrs�lakes, • ' �
• • �
meama ponds,rcsm'oirs,s rin s,and we1(s.Ac�wamr tnvds mr?�he;urtea of ihc ta�d or thr,ou�h � � � - �. �
the gmund,it diuolves namrally occuning miaereis and can pie�c up=wtipmices;rcwipng from the ��?.;.�� ����^y"t.�c:"°'.9""'°°"�''� , !
pcescnce of animals or human ectivi6a.Conteminan�s that may be'present�in wmce waia include . y ,',`..:.. .�,,,:. �-�.;:�. . .
micmbiat contnminant::irwrganic conmminmu;pesuddes end httb�ndes orgemct¢emicai rnnta- "�j ��
, minantst u�d radiaactive contaminanla"� .�,. , � � � v.�'°y`�" . ,y. t?'�V�Sc ,.� ��!L_
�d �� .�i�. I
AI�of�iie watu wc suppiy io.You�wmoa from benWh�he'•B!ound ei�!is�efa�ed to es gmundwa �i.r'���;, 'a'���� +4� .�� ��y�,�'�i t�:?��.�o�a�:,
� ter.Yourwomiis�store.�bepEaththe�'groundinasendy geo�ogic�l{ofmanopknuvm.ps'd+�A9uffc .�,p �s�.�t.na h{ f. ,�, � r�„��,x� t '
� Systcm. Vlalcr in ilic A uifu S stem ori na�u udon.vihidi s1mv�Y fKKO�°�aO"^� � � ��.iy� re.v� �.F'
-k�3��.
throuBhthesoil.'fhaewcthuprimarylartnationswhic�oneonlheaher.nndmake4ptheLonQ. t ,,,;. s ." .:�'7 ,..�� � . .A�'.t �rf�'�%�_ 'r,".;�.. 1
thaetormazionsarei._; , 8+ :^�.. -:'"` �
IslandAquiferSystem.Fromtheshallowrstrothedeeyeat.. � - 'ur; �, �.""rniwa+,�,3.� .� ,�'� . ',r�.�.,�, �,i .�
Ciodal—comninsiheyoungcstwnewrstwatutn�hegmundweiersysum.The.SCWAIjaa.349.�,ulrr� � � .:, `-i„4:i�.. :3+.-- , �
drawing fmm this pon�on of the aquifec Yttueily nil private wdis draw fmm liie�,�oun��quitiz.:...:� -
_ . .
� '.MagoWy—is the Iwgest o(th:thic�forme�ions end holds the most weter,�{nyehpf wfich�s hun- ��`,�'
.drods of yeats old.'ilurc are 304 SCWA wtlie dnwing fmm�his portion oF,llie aqu+kLt-;Y�,,e 3�y'{r: .
Lloyd—n lergely-uniapped layer whiah contafns the otdest water,somC;�oY,�!{Nich_h??',�,bu.��,!!� ,
hcld�in�he Aquifcr System for morc thun 5.000 years.The SCWA hm lour'Uoyd,�ivelli:�' ��
• The to�ai depth of�he Long Islond Aquifa Systan is amnilest on�he nmth sFwre(epproximmely �
600 feeU und dcePa�elon6 the south shom.�gpP�xit�IY 2000.fxtj .� .i.; ,, ��.�� i -'`�;; ��:.�..'� ...��'� �. � � ':. .
�HOW DOES �I�� 5��� .,ICNQVI� �TS UV�A7ER t� C�(�E��T� ��i l����
For 51 yean,our�op pnomy-hu bcen to ensure thut the wa��r we provide meets the hiBhest ineluded orc new imn romovai pinn� 10 mo�e weiis aixl 153 milc of wqter mein. ,
�possible stendards.�Once n6oin,thie mpon comains�good news for all our trsidrnde�and busi- As mozt of the wmer we pump is almady of execllent qualfty.it gmemily don not receive
ness cusiomers.Az in past years,ihe wmu we delivued in 2001 met or e�eceeded every single dded'for instnna�a�cording 10 the�specifica��i os f he siaro�hwi h depnnme�to inhltiit bocY
h��U'°1ard°�W0�°°�"s1°°�' t�rini growth in the dis�ribnion syuem:We aiw�ndjuct ihe pH�Icvcl 6a6use�SuBolk's water i� . .
We must rnmply wl�h stricUy en�omrs!s�unJwds ut by the.Unitad Stems Envimnmemni� .;+:.:.��oliy z�iBhUy ocidic(PN can rnnge fmm 4.5 Io 6.8). To preveni mfmsion vf cuslomaa'
pmtu:tionAgencyaruliheNewYorkSwteHrai�hDepnnmm�(Inordumcnsumiha�upiv_niei:,;;��°,,home�'ptumbing,�F�e watv is chemically"but(erdf"by ndding z hydrated Iime pmduct�o
is safe to drink,the Stute and ihe EPA prescribe regulmionc which limit the omount.of.a[,IniPf.ri��,i�Q�;�PH Ievel. In uddiuon�o hydreted lime.cnustie aud�or sode'6ah must be uaed io
rnnmminants in wurcr pmviJal in public wntc systenu.The Stme Health Depenment�n�dxFie�, ..�Ql��;�ystems(or pH wMmL.. .,,� ;�; �!: ,7'.:';::.,,. �, . .
FDA's reguln6ons e.amblish limLs for conmmiaanis in boniod wamr which must provl.,��l!cr,.;, . T�r;,;:j
sume Protection far puhlfrhen�th). Becnuxe of�hese stringent sa@guords.we can itds;uro all';:"'�:.y;:U1'tin:-nu od�er vemment is required.�hcida'zortahu6icides,recoi�e sipai'-J'.ndd G�oiml trat-
aurcusmmca�hutil�wuter:We deliver ro them meas n1llocal,cmte and(edera18u1dF�ines.No�'-^.��of�rFlnetl�ation for�rolatile atgonia,pes' �
porlionoflhewutersya�`em'violuled:�he6actertdogfcaism�arduarunyotFier$eeithsmo- .�nmt,uifag�ranutoraniwtedca+bonfiluatfon.Airstrippers.ionenchnnge.:ic'vaaeusmo'si�and
durdF t�20(17 a!W New Yur�e�3��iali.qs vinong U�e strictest`cyuimmems in�he nntion tM1e oddill'o'h'pf pulypiwspha�a for scquest'nng iron u`e aiso,uscd si necded., „, ;, �
�Our lat�IhF nntion Glur6ecl gn�u7HlwwqGAening t+uiiiiy,conmim nppnnmk L-om�1ie simple To enswe'that SuiToik wiil rn.minue�o tuzve xcrss to�he puiest mvst pristinq.8rpundwma in
Io}hepopSllFtjCP��'f0lthm�I1fo116'n((Iollfui.,.�7litcqulpmCnlii5a5CnalGvelh¢IlheRtulis(6c� ihC(JluiC.�heSCWAha56Ce11int11e(ofCrfoirt0(��uiDn'�Il�thnl�luye�esu0edint��We
�manyq(�heconl6 Innntqy�ctc+iifwnrc¢puncd inpunspetbilllan.Oneµv:perbillionfppb) olsotook�Aelcadinsponwringthep�pebarn?i=PN�m. p� �'SP�'
AIP!KJ!��RB��I�tcifugfL�ttormepood��P�one'cawnd'in'�IieNfe�oPu�pereon�wha1a82 vu�iono(IOO.00Oucrosoflandlnapp'a1SuUolk.and,wame.row.cry,ciosely,inwlvedanmen-
'ywra u�A, p�her'r„sulis orc.�ixincii�ln parts pc+'miilion(ppm).7fifs�enabiu us lo fuifiil(and agmg and pro�xi��thnt unique resovrcc � • '� ' . .
even,ta ga jreyopd)l.Iw ea�cnsivc momtonnB cegMircd of uIl pubiic watc wpplicra . in wnclusion we want�o tlinnk atl o�ir'cus�aiiicrs foY allovring us to Pfovide yai with clean,
�Ourchem�atdie3t�he viacr heNh�uflhc�wclilu!ad�uiid within�ll�distribuiiaf aptem forp witle yd¢jfiy wa}ef In 2001 nnd Cor taking the time to mad this rcpon.;y'e hope You luvafwru!it m
t urametetf'incluJing�f+a�Kerin:�aotgunfc;cliemial�cuch as n�vatq Chlondt und�wd: � be nn�qtttesung nix�wiunble avervicw of our ongoing eTwu to�guorantee ihe snfay of the
vo�isatcf'i,��e a gonic com�wumis-intluding tenrcne.IricFdorodhylene aixls�nhalQmet6miu Pes6,'r ",patu We supply to'ino(e'ti,w.n amillion peoPle:its ajob we take very serioucly.day in nndday �
rou4 Atter all tt t Gur dunkin waw:too! . �� � !
� cide.�euch aa ultlicifi onJ IlnJane��nnd herhictiJa�nucb§x nimvirleaRd aUwanr� 'Ite�nlras+ 8 ,. • �. •,.,' . f
-�ory is in use cev.en Jnyn u wcek 24 hrnSis(,6 day: , , ��. . . � '
C tos oridiosis and Glardias�s informat�on� t
Morc Udoildl�y,+n�cr yudiny P�d wcll mtotmmion u ava�lobir in fwr euppldnent aM maZ be ��,. rYP ,P .. � . ;
oMuineApy cunmcting SCWA I'�b Diicgtor Ku1en Rnndaao nt 563-025R a LnM`Adm�maratioii . .�hm p�o���n ouWrs=lm of'e*'YP�P"Tid�°'B�°^��'If"ksd W'�ny �,
Munnger Ed Tfuskoimki ut.563-0258,:.Ad�Gtiwwllyi thi{Annuul�Wuw'Q�Miy�6.�wtll be*.A r`�bile qmtq wppiks le Splfdk CountY• _ . . , � . �
mndeavaiiub�cihmughwrwc6ahc.wwwucw�.eom. ,� � � .' , - :. : ' . � .. . . .
�YtlK!�.
Aspaificaumpicafthccuncniwa�cquulityftandudt.nndlhekmwn�fraltFf,risks�of�tie ��.� NewYrnkSiwflawrcqmresivuasuppiiaatoob�i rcuuomasaboirtU�edcksafciyp- ..
comaminnni involvCd:on inor�enic c}itinieai known�s m�mtG ti�ey bent�ruunt�a you.7fie tqsppndiosn rnd g�eid�uar '4-ry., P!°'P���e�%ierdia3u�pre intatinal illneua�cauced�6y
. �maximumcuntiminumlevcilMCL')'fdr�his'iu6sum�sl0pptrt,Th�menm}hml0ppmi3the +� �y���picpem'sjlp,Cryixo9puridiosiscqnbqve.rystti�ua'forpeopkwithwukfmmunfry's="
' ' d ns or�+ansPlqm panrnu.anA PeoPle wiih Gohn�diu�se dr'
highest�kweio(niinteallowaiindrinFingwaicc �„�} �,�. �., .' � �.k�wchWxl+FinathervpY lyY ..,, , ..,. , •.. . �.
.. . . F�IV�infation. -... �:. . ,
Nivuic in drinking wmer a�Ievcli above 10 ppm u n henitH dek formFjni��of iw tMn eix �k wrtti aeakened im iie tyue+u shou�d discuas with thdr h.eaith cue pmrida:Ure
montheotage.Highnilraltle4clsin�i�nkinBwulcrcanduseblue�abysyntlryine.Nllnuelev P . !M1. g � B � y
'cls may rixe quirkly fur ulron perioda of�ime becouse ol:i�ipCall:iV�a$riEqllurql-activ,ilY.: . nxd,lo.take�ut�n�au��ona;uwehnsboil3n wemr,usin acdtifi�dbottiedwmuorae e11
Monf�oAng nus ihown�hw thcxc oaivf6es do�rot 6ave u varinblc elT£ct on lhe�f'irQte ic'vdt fn appiPved home fite,r,�''.l,nd(ridunis wfio diiiili tltiy�me'y have cryptosporidfosis tir 8iordiasis
our weil souazs due w rcaaunal minfoils or fcnilizer upplica6oro.Nuw,evv.if yoJrwmei con- shuu�d'cuntazYt6eir�fi'boliA ewe providcR.immcdi�edy. . .,,r.,�,�
mins nilm�e ahovr5 ppm Sbulf of the curtrni MCL)bui bclaw 10 ppm.ond you nie.Faring fm "' �,�,he 5uRolk CouNy Wnur Authorily'doc m�recomme+d tbe uu�o[bot0ed�xnkr a�
nn infunt.you nhouid wk for udvin:(rom ywr heahb e�fe ptoridee �
� AnMF�cr subsia�e.raJ�m.in a na�um�ly�ocr.urting mdioanivc gns fouM in soii nnd omdoor air hume�Ilers nnd uccepts no Ifablllty or tespoa+ibility�whqlsoever for ILd+uas.• .'
ihut mny uiso bc(ourxl in drinking woicr�nJ inJewx aic Somc peoPk eapoxd�o elevntcJ mdon . . �. - ��... . �:..-,- . . . . .
ievds uvtt mnny ycun fmm s��ure�inciWling drinkirig w��cr mny�haJe a�f increased risk of gei• F'or 6dAftion6!infnnii�IiBh oirin•ptospdridioria or gtdidFoiii,ple6u comac�the S��o�k
�ing conca;-Thc�ioin risk Gom mJon is lung cnnccr fmm mdon cntcring inQoor nir from soii Cormq•OrpnrrnuN nf Hmlrh S<micrs at 8S3•2250.
' umkrhoma. . . . , , �� ,
In 2U01.upproxim:nely 2lXlof nuFwelic werc lea�cd for ewlun quoncrly.for u totai uf800 xam• ���y{mpor�anl w know.lhxl,an!ne.peoPk m�y be more vulnm6te b,coomminanls
ples.Thc rcvuhx mnpnl fmm Nnn•Dctay�0 419 pic�x�urics per IHcr(pCilt.).Curtemly.ihcte in d'rl�nking Mnter thnn IhR,general popuWtlon: Immuuocompromiatd{�ee'ePn!wd!
ifi no nmhiixheJ MCL fnr rwinn.Rx:uWhinnnl inf�mw�ion.rnli,7our s�a�e radan pmFmm(�' .�p�ryona with cvncer vndergoing ctiemothernpy.�IQlEORE WFO}1Y�'!UfM�lfgUM OI$i0
�N00�458>I I5N1 or�Ydl EPA`s Rmhin Hndihe(i•8IXFS05-R':uhm). � � �ro�P�dnu,peopie�ilh HIV/A1D5 ut;other immune sy�um�dtsorders,som2�eidedy,
in contmst.n�nther xuh.�a�c we�est anJ:ix�,�ueionaliy:�rca�f�K:imn:dc�ix,o Ireahh hnmrcl. ond Infanis can he parRculuriy el risk Crom{nfecUons. The+e peuF�le.chouW aeeic
. Simr i�can M+ur ncs�he�le pn�hicma.how�ycr,wc ure cummly working lu mJuce dM income- odrice fmm their he•rilh caie pruviden. EPA/CDC gu{ddines on"appioptinte mea��is
nicnccs i�ian cnuw:nur customcrn:9n air.0 whcrc�hc grmunJwaicr ndlumlly�i+nlainx fmn Icv �o Ieurn 1he dsk nf{nfatbn by crypimpoddium pnd othv microbidog3al mvmmi-
els higher Ihan Ire ntnnJanl.Myueuering u�,m�s nw:h uF p�dyPMiaP.hp�cx.ure°dJed�°nimrul ihe , nanlx are uvuiluble from 1he Sufe Orinking Weter Hutl{ne(SW�426^<791).
iron�nd keep il m M�Iwiaa H'c nrc niso wing s�:ciulizeJ imn rcmnvul pinnts femuring n m�n- , .
@une.Kc grccnsond pnxcnx imJ implcmcming.xinicp&s such asliia�ing hcW xc�urcci ii(low iron ' ,: . .. . .
K:IICf. .� . .
Ddnking wu�eq i��cludin&bo�ded wulrc,mny rcasonublg be ezprcted!o comuin ul
� AF n�n�im of informa�inn.high imn Icvcie cun f+c cuu�.yl hy wriwlen r and mixiag oY scJi- j�ae�Fmell nmoums nf'some eonlaminunts.The presence ot contdminnnfa does not
mems ihnl comain iron which is naturnlly ixtivrring in Ibe uyuifcr anJ�an ncule in thc wilcr �tt�����.�nd{culr Ihat wa�er poses e hcel�h risk. Muce infarmot3on aboul con�aml-
mainK. Thiv�ud+uicnm ur mir.inE is ofien Jue in it�c use of fire bydmntx,wmer mpin brcals. nants rnd po�eNtul fimllh etteeu�ao be ubmined�by celUng ihe Emlronmrnini
repairs m new x�rvire hiwkup.e The SCWA empinys a'iys�enuiic Ourhing pmgmm�o rcJuce P��Klfun Age�y'c Sufe Ddnking Wa(er HoU{ne(d00-436-0791). �
� �lhesc scdimemK in Ilu Ji:uriMni�ia s)'x�cm. Impruvcmcros wc uJJeJ�u uur Kyniem in_IX)1 �
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.,;� F ��" E; �,f,��i_'Sf}.
��K- . e �`��� e�� > .�.k,j r�'�y.d�{�r'�Nry�'�����#��'^WC�•'t�"�'� ��
. . , . . �.u,: l 1.��..:✓.�, �."-.:,w+et�:u�'�ualv3�
. - ,
- � ;;:. � ,,;._.. . .
2001 Microb�olQgical�Test R�sui#s : :2001 L""ead and�Co er�Test.flesuits
' Suffotk Cuunry WaraAutMnry,coll&tn!an uvdageuf 1777 Tuio1 CoUfmm 5ampla cich muiih c4�r
;o�goo�:;,,�i�:���r�,��Rifi�a.sw�ysmorwm«�inn�awwmm�rd«aw�. =•:;: =-.:.SCWA Lead and.Go erTest Restilt5 .. •
m
' ...Lnrgewa�erdistribuUonnieistliatcol�ea+10'o�maxTaelCoh(ormsompies�prrmonthi.ipux vmtaw D.u�u! ` e u�o�a FOi1Ofr�� .
� rc n the di est rcenm e of sitivesam IeS coii ' in un ane month.Th'rse nm-re rc �°"'Pomid'veuNo 5:.t�F�90'n p�'"'iko hbw.arcn M�� ��'"° u�`�J 5oivr
Po Bh P� &._,.Po P �S'd Y .. .., P . . .�n�i ort�w nn��+s�1 . •: .. � .
� scn[edinTebleltieloiv . _� t . y� •. � �. ., ... �u' 7N1 2.9 � ug/i .Q_ pi, IS..Ca7�aiofFjaudWd�
aud
'mell wemr diatri6uuon zrens thnt rnllta 40 or IeaTda2 CoU(orm wmQles per momh:'inup -.-.. �� 9I01 :ND-366� �_.-. � .�� � AJum6ing.5ystrnu : �
' 1 Ihe hlgbr3Cnuvibev of posfUve wmpla-rnlleaed�o uryy one month:77uee me i�pfesent '` � '' '
' Tablelibelow.�.. . . ....-..�. ., .:.,:..,.� ...._�� r � . . . CoPPQ' � o.'7NI�. .0.40 ..:mg/1 id�� �AL 13- Conwond
. . . ... . � . . . . . .:� � .. �: : .:�.: ". • �4101':::Np-1.07 � .. `Elumbin 5 stems
TABLE 1.=Mic.robiologicai.Test.Results._:..,:.;.. �-Sfon .'BrookWD'L'ead'and Go' ��Test Results':
'.� � For La e Watei R�stdbudon Arees �� �� �. ' � � z � . F��ay .
_. :
' ' ' �. , .. . ..:: �,q. ... ! ' .Cv!4aad YNN t9dh Pircwlle� �y�n MQ.0 � tJmn Llkeiy Sana '
. . . CampauM..� RICI.�..�'.:�.,.,._MR7:G...�. '.�7tuurtnenl:" �7�*�:.� � '•. :�. . °. .S�„�F.INwaTdRaWt . Ai'nimis.sl'1 '
Umi ot
� Totul� 'Prcsc�ce:oL� . �. � Nntumlly Itai �Ho. �BI01 .�d;2r � ug/i . 0� 'Al. IS.� ConosondHousdnld .
'-Coh(wm� C4Lfomiiri.r 4 � �� .�Pmentirt�he : ;. :ND:SZ �' .: ...PlumbingSysteni:.. . .
. ` . .. Bactene .�._5%ttfNfon�hlqr . ..0 �l.:N4 Emirrnmem. . o1:��i8N1 � ��4 �. �.ms/1 .� � A �.�" COn�ondFiaarl�oid � .
. . .. �• ...'Sam Ic.. , . „r . ` .
= ... - ,:� . .p . . . : _t ... WP�T .
, .�,-� .�., . � �.. �.� � . ��.+ . .; ..._.�_ :0.03;2.Q1 ,..;... .� .� ..� �: ..Poumbin S stoma•
� "'�.�;'; 'A".� �:�►°°�s�' : xa�r ; Riversi'de1ND Lead and Co ` �tesf Resul#s
' '�Djslributlon �Mont6ly: �Monthly � �Mooihly fab�mr�� � . . � � .
�, Area�. . PeicenU�,'. �. Perceniage .;-'Peiceniage-� t6eYar... '.�^^i�N vw�No ri.;m.o.r� �ypryr'�mmi�e� •�t�+cic �u��' � �ut�rysowc�- '� '
, .,'.. �PoslUve�� PaiUve Paettive. .. ��. . . . .
.. �� IA. .. ,16_%.r., �t_O�F7F�� .02�(. . _ 2409� .�� � I2ad� No � BI01 � 1�ND' � ' ug/1 ��0 AL �IS.�Ca�mion,ofHou=dwid
� !B ��� � 4.fi9F�.� .':"09'v' . ,:':07:.F,.v��. ....1.143:�`�.:� � "- ', .:.Np� ., ' . .P.Ium6inE$Ysicm�� .
' � � �� , .'ci.� PP« o
o � . :. ��,m'.
'6., .. � ....3.6'% .. :'.'056i . :-"1'4.7.'Xr ;�' �:�534 . .. ._ _.� ���. .';ND-UJ0. � '{':� .F'lumbin S slems
:. �z . � . : •�.�s�.- �.�.;.o�:...= ,-�o.a�:;�:�..-.:..z.�i%-�:.:: `:�.:. :Fair Nartior:WD Lead and Co erTest Results
is ss�:: .. o� :�o� isso . �,,.,,�.
vd'�w,� u�a. ` ,�6a��or.
' 18.:.' ,�:1.9.9F.. .'O�A. . � 0.6'X: .. :.`R50' .. .�Of'�""a Y�,/No s�!Nmi ia r�Nau�xr� h�"ibnC°��in�'il�+�ia:et7 . .tlfey5aurce. �
.. . ` 30 .. �. ...�.4%`. '..••r.�09F� ..�,'..,'y0.4w; !� .�.'f'�.'.'816'.:.':. � ��' l;c�d._ .No Nl01. � .'_.�� _ . ug/I�:. ''0 AL=IS. Cw�udonulhlouulnid
23 :2.Ob�� �09F"� 'O3R, � ' �509:.' ' ND='?i PlumbinpSysiems .
�. 30.��. . �� .0 96��.� ...0'76� � �... 02�k�- .�. '. 511�:, . '�OpPp' � o i ' �O.SN mgll L l AL=I.. Ca�mxnof H , . .
; � �Lnrge Di3tributkn Arca 1'�had no detecUons of Toml Califmm Hocteria dunng 2001.'� � ���•` � � - .
' .OAt-Ofii PlumhingSys�eme.
� � . .. ,..� ' . ���, � . . � . � . . . . . . , ; . .. ..
'� �� � TABLE II icro6�olo icalTest Results '••TM'MiP„�„��e,rc,�k u��.9�, rt„a��or�n �� �-��N� q+t!kyMd)A Y����
��■ n p�� � . . .i . . �
. }'�' g � . i�n w�uc on u�rsai<oC 1 W thp�YnJI�a�4z�h�pncaNnSc f d N tW,ii.1hw r��yuai� v hbw h.The�
• ; .. . For��Smail Wa1er.D�alribupopArm� �,�.��..:.� . ::� gp���mHk 4�equoi w w�(',�han 9D�of Ihc I.cnJ nJ C pper JIueR h.M tYSQ 41 y rof Walet ayb-,'
��.;�. (Iqdud(oBk'�R�land,,$tony:�rqukH'D�AfvvdtleWDn�CampHero)...... mm:.In���cl00ampkR�wpmcrillnyeAa�- ur,�r tirynunJ�ia'10ihjwnj:n�llewi wm2,9�u�/l � .
. . . .'. .. . . � �^� - .�forlsai.ndOdOm ldi�`a�..'fheani� k if L..�adr-acxnlvl�rlaitwu�flh.ItMlxin.+ta�cd.aiul ..
. comvW�a � Md. :. �.hicLc M....nnen�.. �.uwq5w, �� . rn PI*� "f:a . . .
�IF�e.uit lercl f CoM+z wac tw C:��+1cd m nY nf�h�.11N!,f'F iri.1�v! � � ._ � .
� Taal � ��7�vourmofc: .. , NuwrnllYi;,, 3rAakaLt.IIAL)lt�eroncrm U +laciwnmi m ryich.il� �.�k+41ng� �ia�mc��K:qtkr
��Cotij'Prm �� � posurve , � ' � �. .Prcsem in�he _ _ . . .�' .,. . . ., . . ... . .
0' t✓a �cquiicmrnu whicti a wncrtYalcm muu f IMrv�r �
..Bee�ene ... .A.satnpla , . Em�mnmem .i a•,.�1 �IprcFmuplJcpmu.iw�he�9phpc� 6kx+flh 4 �iniweJit+U uQn.yvlla�miic '
. .���o-, . �,.,
.. . ..:, . �. i � . ✓ �.. .��Iir,awiu�nnttmkaf Ip1'Uy!1:inHicmWAie ' f d'dnMit rtihal�M'�wli � 6eluvk'fhe.
iy�p��y e9 . .
.... •�. .Alghe'%t'� •��'I.oW�t� .`'Averagt� '��� Na�of. . 90th pemcnifk�W Wtial��o iv srevirr iMan 90'b i�f.the i.cad'uriil GM�15r lun�A:f itd oi y�wr wmp ryF- ,
�DLslrlbu6on ��Mooihly � �-Monihly MonQJY ... � ,��Ta4for��_ .iem.l.i6ue3ae24wmpla erc�viic�al.�yiwrwterryrarmupd�hv9tl�h�nemikmluewu4.uy1 .
; Area . � Percxn(age ��Percen,tage Perceainge.:� iheYne '- � .fqrLadnndil;t9in�IfarG�per:.Theaai nlerelfofl.uaJ;w,wMMext dJ 1 ny.t�ryF e ini��d. . .
..... c . Pos�tive. Poa{tfve �Podllve� �� � •� .4nd ihe ucilon k�cl.far Cqrpu wu viccakd m arc nf ihe 4 w�a i�w�l. �., .. �.� .
� .SCWAAmn3 .•'�.'a � ;�. tD... : 039F l. :t �344 �.�-- ..:: ckl'�med'��ocn 9oth�ti� IA`',�901c . .
I.The I � u thc IIc,nCtM S�N�a IuteJ.IND mH di.hmeJ
' lai:vdueona ut Ihol nJiea�u�� pxcc�u ge f d;a fimi�w0yv1 rqwl�ivail�el .i �h " . �
DavtsPntk�:' 1...•. �..' . '09�'in�. .IIU pactinlik'Y cqmLioargrmierthun911%n(iM�.ml �wIC�.�wl��yMdu�yourwaciFya<m.ln_.
. Lonel v1lle::� . 1 . r.•0'. -I47f� . ..32 � - ahiaca�e3ram�Aawercrollececd�o��yoimwu!7eypcmanJtM�3l11h�n<ntikvulmwaN�Yarta�imvl .
Ston`HrobkwD. 1 � '���0: � . :04.7F'.� - ••237..,., �.o3omg4�arGojipx,7tcopbn�kn.'L5fir4saJaCn�crwa�.rtw. ti7ldlm,u�y��f(heSwa�uuil.' , �
1 �Hnrbor WDi.` 1 p• ,..�'d 9 76 . �09. .'. .�5:-3helevd pacn�d`e{Msenls irie 9ahµ,�c+ytk 6f tl..6 iius k,"+9d.INU mn Joixn`ti1�Ikv�ciuik'u o
..._ , vuluema�ickctlOD�hm nJiesc�he�aSguf5J6criMpiiwiilu� upml�nixh�iwt�'Ih9tfh;�rr-
� npllerqWP .. .t ..�� _::�0�, , +.:3D.%�;..-;�:�1 9p .,2, cwikuMel,m«SrourUun9u��bof�hel�adnnlCn�prrrulux�kaw.+�rl�Xaurwuiaryw:m.;Inihaci+c
.' rfiefollowingSinql�DlsMW�ion:Arcashad-j�o;dele511onsofTdnlColiformBecmriuduring2001., 6nmptaw<rc'mllcaedayarc�wa+crxyzwoion�die9Dihjara.+alk`vl 21up'/I,firL.�J�JOSeumr/l'.. .
• ��fcrt'opjwThe onion kxh fg t<wl ur.Caj�:t wic nn(rxmlal,m mry uf ihc 6 Fna 1�vcrl.: . .
� ': S�7 8,9:10�4 21�75.2422.32,34.35 44.45' ` . . ... ... ., i �
��Klsma..Gherry Orovq�.'llk Wna P,ofnt O Woode,SummerClub.RiverntlE WA , � •- � . � � . �
Why SBve V1/afei'',•. , - Wells Re'movetl F'rom Sel�vice in 001 • <:
�' . �' � � .��.Tbe mb(e 6elow li;tz four WcIIs�bm wcm'icmuva!trom r.ervac m 3001�txwvac�hcy did riot
. '.�'Although�5u((olk 6oumy,es�a whok,�h¢s�an adctjuree m�pitn of wala to meet�presdrt erct(uurte�., �ms1 Ihe iv�I s�ondonl for tfic cvqiainirianis I��ial.� . .�� : .'A.
,;.
' �dema�ds,iheie¢ie'anumba'.ufi"sasoqswtryii{simpatmymsmewa�c... � 4.� �.: ..•�-:�. .�• �WEL¢NAME.:.,.' � �'. LOGATION. . ,' Ct)NTAMtNANT., � . . .
� �•§evingWntasa�ese,ei�ergyandt'oncofthecusisafsociemdviiihbwl�dlO�es"e�.unesofhfc '' BenohAvp,MI ' . '�.M.F�ich�ue . �Tetr�chlurueihene � � ' ��
i er d
� '�Snving�wwer�ovr'demmwitordecuicitylopowaairpum��.;� . '� .,. ... `.' . takeviewAveB3� ' '�BuYp"rt:,�- �� Ciii-I�2Dichlurodhene:� .
•Sming wdc�rt<tiices Ihe miI of a�e+�ey�tequi`ecl tb pvmp wmer mid tlie nced tu cansinict cov)y iieiV.• �vt�grteri Dc�BI � Gwchogue;' -. TNuI:AWicprb;� �
.��vid�s.p!mN^8?Y�enumdwwutav,ae . . . .: . SouthSpurDc'NI � ��:., EnsiNnnhjwn � Nitr��c . . .
'•Sw3ngwmen�esieps�'tl�estra�nonOK.W?�[f�5�'S(tltldllfRl$YIL�'�CIIOf�1,ItO�1�`W.ICI�f1I1$IOPVOMSCN'R 77ie.wellclislall�clowweminkcn wI�treryJcchcxvu}etlicyd�Jrxtimrctfhecuttent.�!�u�l,inLs .
��water use resuirnbn's i6`�at essauinl'fiie figh�in neais n2 rtie1.� �` ' :, an1 bipiisht MrJc imo nwliric xxvice in 2f%Il.try IM u�c uf grunulnr sv.tivWeJ,wr(M�n RIIMi�m. .
,.': .. :
.., �.
' • , �HOW CaI�I YOU.�OI�ISeNB Water? � ' ' WELINAME � � LQCATInN � CpN'fAMINANT'.� � '
�Conurvirig wamr it not diRii�.lA ean.save yoo-money.w�d suve ihis p�scious;Iife.glvMg�. Bnnoq;Ave.�ll.�;;':'. . , �N.Pnlchogup"� ���Tcir�u:hlonxlhene .. � ... . '
raource.�Please do the following oround yourhohie or buslnac:, ' ' BroaJwny M3 ' Hunting�on Sm�iun �Tcir.u:hlonwihcnc �
,.... ' :.....,�_:.. . .
�•Check�Por�and�rcpeir leaky�'fa�icEt3�InaiOe anii'oui'side yoii hoine or business,.Even o small lcak Dare Rtl:ql" SclJen� . � Tclnu:blaroelhene . . '
- ;cen wastrhundreds of gnllon�of wa�a n dny!' .� � �� � � ' :" . , � Middle R6,qZ'i �Pns,nic. . � Dinci+,eb' � � • �
Rock Poml Rd k3 Easl Munon.� . 7'CPA: �
•Chcck for Icaking)oi�cu.ihn dan alw waste'wamr nnd add w your qmer 6i11 Y .
-�'TnrochlommmpbiAu4cAcid", � � •
� %Uae ybur wuhing mechine wid dithwashv wi�h full load[only. ' � ''
� � �-�When.uaing n bosc o0�doors:do nol lel.the wa�v run needless�y.Urc�n twxzle Uwt d'utumalf'cul• ' � � � � �� �
IytumaoRwFKnnotbeiitgused. • . ' ', � .���CJ�i3tIStjCS/nrCulrrulurYcbr,•L'ulerlUrrrnber3/,2tN1f�
-Most Inwns nxd about I'/:m?inches of wu�er per wcek:Wata Ic�s ofieri and ror lop8ei�pen' i Cuudmers � ... , . JSf,327 •.
' �. i.. P6�nild�idnScrvcd':.r....:� ......... . I.IX�It.91S1.�
o.ds�o�enrnur5ge deep root gmwth..1(makci fqr a.hcal�hiu`lai'vn�hni:w�l�rt�he Ies}pes�ic�&s i . .
_. . . . . . .. . . . . .:' . MlesafMain,...,.,�. .... ... .... .. . . 5.39y_ .
.......
..: � ..:..:.
..... ...:.
' end:hefiicid'es and be fx�ler eble ro wUhs�und dmugbi coiulitionc.,Huy a�nin geuge or use un � , . .. F{Ydmnis �-'......:::......�..'..........:..... .1J.221 �
...
. '�Fim ...........
empry cof@e can to kap track of�he amount a(wamr your Iawn'rtr.eivei Oom yoursprinlcler'arul , Waicr Pum�!(billian gallons)....�....:�.�.....................:... � [A.4 �
mim . . - ' .. �. .:... .::. . .. }��Toial Wclls in Sys�em......�.........::�........................ A17
How Much Water Did We Supply in 2001� ;. ..A����w�ns.��sY���m.......:........:....................... 4�R
Tomalthedemnndsotwrnwomcs.wepumped69.4billiopgallartsoLWmecAf�tietwul.uxbilkcl �mp5wtions ..................�............................ 221
wr�vHomvsfwappmxirtiaiety60.56illiongallons.The�ficmwzaf89billiongallonsisnao¢ouiu- . SlorageFnci�Hic: .........: ...... ......................... 64
. ed for ond repesents waur Iaa fiam�he systan ns wUl as wauruud fv fiR fighting wd ahu pu'pea� N'amr Siorugc Gpociry.(millinn ga0nns).......................... 6fi.7
� a.This'Lnaccwnmd(or wata"repiesrnts 137G o(�he tdd wmtt pumpe�d in 2001. $ �A��+�fe Annual Wmct Ro�ex 1173,IXM1 gu0ons) .................... 521t2 -
. T�►BLE„OF. DETECTED COIVIPOUtVDS ,, � „ •:.
Compou^�".... . n� Mcl�r.tcw ukeq sa,mo :,��. :: .: . . ,� � . _:.. . : . . ., u� ,. ..
M i.timrcn � Maavrmst. �
. . . . . ;.. . . . . _.
�. . � -�. . . ..:. . '. . .� ....� .. ., . ,
RadioscGve Compoutids -• �.' Volatile Organic Coinpounds ', �
...� . . .,.
GroesJJ ecdvi � � 15 '•0' ofrinWmlde 'slls....�......_::.... . :.. BiomoddYaprieGimie�. ' upll. '80 80 BY�ProducfoldtinWnpwalerchbrinetion.� � �
ross e a o�ne ��a mso-rna e . iiaedod to kii�hermlW smi .� .
8lsmuth•274 G/i. Na Na �D of netural antl mantnarle tln fls:: ' Branolorm� � .�,upQ:• '80 ,�80. By�profkic!01 tlAnM
Cesium-13F 200 ;0 ot nelural�and rna�i-metle de flb'� � � needad b kfli i�armlW or 1efatro� ���'
, �
� Radon ' pCUi' Ne .Nn NeNrully occurting ratlipective gas founcf In _ CarhonTeVechiorltlu�., ' •uplF-. ':5,..q� DLsUwvge hqn chemkW plailU"amt WAor'. �
' �.. .. .. soil airandwnter. ..: • ''- . .. . �.r. , _! �: ;;il::�(." :'� IndusUlel�ectivitlest...i...;.:'. . ..
�
.. .. � .. �_. .. '' :,:,�[::-. ;�::,;,:. _' q9om�Fb�m�e4urn..... ';,uyl�... ;8� �.80,�By�pmduct ot drlpking waler tlilqination;'�:. '
Inorganic Compounds , . . • . ,�. . , .,. .. . needed b IJII hermtid o ins.
Chbrobrtn .' uyl �80. 80" BY.Protluc!oi tlrinking waler chlo�inat�m �
Alkalintty,rotal mg�l � Na Na .'i�pre;Riice d ria§aaAy ocan�ing mbonatea ... . .• . '. . ' .. ���y(p�II hermtul o anisms+�..
� ' � ������� � cis=T2-DlchlorooNenB 'S+• `5• Discha e irom 7ntluslNe!chemical:Mctodes � �
Alumirwm � m Na Na Naturall.occurtlri trans-7,2•Dichbroelhena��:u ' S"'"5. Oischa e Irort1 intluslriei chemienl faiiodes���' � �
,:. .�..i . .S
Ammaie.trae . .. mg/l Ne Na; �.Fmm nmmonilxnNtmfn�lonilizer�or�sepfk•. .�:` p�y�a� ��.:'up+l�^,1:-5:���..Q Used ac a.raMgeran4,aemsd projwlie�?., .
' 's'lom feechele ' .. . . . : �: loami n e� . ' � �� �
.q�mc u�n so Ne Eros on ol naturai tleposits eiectratia Ora, 1.1 DkhloroeUiarie �r .-' u9q 5' Ne oe�pe�na ege�*.ms+cr,�uqem.�wwn�*
. ., .� : . -. . ;: ..diicilatwasles�iised•in, -- "« . . .,� `�
. Asbesros • � �MFl. 7 "7` Oecn olesbestoscementwatarmalns � ' � ���`���}�� .
.. dilalnetod wNax htemie6ale bud n pro�
Beria» mg�l � 2;.'2 Eroslai ol nnWial deposlls:usetl In paihl ' •. . . �µy��ja�. ... ;
. . .. ., ., , .
. � end rbdantiddes�.... . '- �. �1.2-�Ichioroathane`'. '.,,u� 5' Ne Dischar a Irom intlusui chemlcal.tacto ea ;
Boron � m ' Na� Na Nalurali occuMn 1.i�Dichioroelhene�•�• u ��� •5�•Na Discha ehwn-Industrfsl.chefnicN fnGorlee-
8rom(de m Ne Na Nnlurall occurtb ' � .1,2-Olchioro ro e � .0 .5':�0._Oischar e from IndusMel chomic811actoAea � �
CO2..cakWeled.' m Na Ne� Nalurall oxurtN �'� :.` ::�..� ... Ma Leaks tar� �
'� ' Uryl,Ten.Biifyl-E1her. : u&�. . 50 �Na� �l9�?a+?�9e... :M,f$E. .�
Calcium . . mp/1�: Na Na Naluralry ocw,rting,atltlod to vraW{es,.��; � �gE . . � � :� ' ', i's ivi octane'enhencer.in uNeadad edoline•
.. . . . .". Caiclum H'imr�ile tLne Ioc ii'eoiihd :. Tetracliloroothane .. ..ug�l r 6� �Na Oixherge fmrn facloriesantl'tlry'Geane's;,..
�
� Chloritlo::.:' .. t:.: 250 -Na= Nafureli occurtin sli�ht sait.watar.inWslon •� � . �� Westa sfles s Ilis... . .'.'
Cobe11+5B•. . u ... Nn Na Nalurall oaurtin �,... .t•.��,; ' �'. 1�1.1-Tdchiomethens .���.uq/l' 'S .Na.Dlscharge iran metol dagreasinp sites and
� Cda • � orunits 15 ��Na ThepreeencnWnaMe�lypr.cvrtingko�,� .. :..oNetleciorid's . � .
� ' � ��men unese arminerala ..:... . . . .. ^. .... . . . � y . - .�.
" ' ' TtichWroeNone .. .�ugA 5�� �•0� Dlschergelrommateldegreasirgallae�nrW� �. �
. Copper ' � mg9 1 L3`Cortosiwro(housetwidpiumbingsyslems; � •' olbe[hclodes:.
� . � . . . ..:.. ....�....;::'� �
leachin irom.wood.reservafives�� ' TAchbmlluammettwne � ug�i 5 Na�Thie compourW was used as�e prope{lent , i
, DlssoiveUSoiids,tofal �m - Ne' Nn NaWreli oavniri minefais9ndmotals� - • (Freontt) , . - aerosWspreysuntll197��OUiersource`dot � �
, Fluoritle. •. �m .22� Na Eroslan ol naiurdl tle Is �� � amissions Induifo YLs�irsn`os'a sotvaM.dp.. . �
� Hartlnees,fots�' , �-mgrt� �Na Na NaN�ly oaurting calaum entl magneslum, � � .; ; de.a�ng�apeM,nqr6ed prypella(p and ns e �
� . csidum ruwide addeil as-H.coiitinl�.. . ,• . - � � � flre e�in a �t � .�:' ' � ' (
iron �•-300 � e 'N6turall pccuni ... � � ', � 123 Trkhl � .
moPro{�rre (�g�� ..5 � No lkedasatleardn8'�B�BaB�.tsedh.�
, i.em . . �,ugn.. aRu,�u.. .conoswn m housonda piumci�g systems � i . chenir�l mi�i'aierig,s.v.en tdim�al.sW '• �t
...IBmI'soklaf Fu..: . . . '.; � _.. r. �erV.airlase oM�umf�ierinua ;� �
IJWum . �•u . !Ne��Na NaNrNI xw er�� � �
Ma rwsium �.�m Na ,rJa Nalurail occurt . 1 12 Tikhlomtrfpuaoo4une� :.uyl.. .5. �Ne..Ueed�ea e refiipereM;sd4artt hrpWMs arM.
� Mnn wwte. . . . .30U• Na'.'NaturWl occu '.�' ..�...�-�.;_ � m.% �^�..... .:' . •.: vartYslMd.''`. �,;t�� y �,r� , 'j y
• _' " P Yle 'upl1.:•'6�� Na•i.oeks Irom lae tenks � nd-� {7
Nlckel:.�.. � up4 �100 ,Na ' � .(rpna0v�'eM��9s, ,f1�erMRect+e ' , ��:.�;... �.��.' -�•:: ::. �')+'.�Veirthanihe�� �oi �fenka • ��
.:: ._ . .......;_.....�- � .. . . . .,- }
.. . . ,:...:.�..:.banertea.��•-,�.,..:.:.:,,. _.�.. j�i1 ' . . .
� Nflrete'i � '�+5� _ 10•:��•rt0. •.ernlizerLae;leochaiehomsoptlefnn �.�ThaMC41s�1heswnMttiutoiii:sfarteCmnparda' ...+__ ..
sewe e•emsion.ot neW�al da ta*•, ��„� .,�j;��.
: . . ,;. {.,•g;:.., r.: ;' �
�erwaam: ;,, . u�n �e ;e , P�.",�s`°a�o-,e�g�'r.oai�.,r�a.��d me��'nt��rn. ' D�sinfection B Primduc�s r. . ;:;: ' ? ' �a
� i� �^ ' ' . WuM n srnre IeN➢mm.. � ....��... . i �BrafMctJaoocetk Add��...upll .Ne :Ne By-product Qi drlr�p xatei tlYorkntlon cj .
� -_Flwsphelo�:orCia� .Na Nn noaeo�mvs�er��3�m-cequmie!�,e4�v++e ' � �'�'� � � needod w wiDra�mne a�,ns`.
Ptwspho�e.folal.. . .�mg�i_- Na Na� Ahfe�lloMalerh,pm ..- . • . .' 8rortrotliclibioacq,bcl!dd ....'uG9 Ne Ne'By�PrWuc7oltlriMclnpwatetdUq4�etlm �i �
. .. , . �+?�R!9I�T�0 ' •:... .. twoded to klli hermfii a
- . . ' � . hdi ii coWLon biiM h eM kr65mrs.. ;` Ghior6db�anw�cetic Atltl . Na Ne 8 mduct ot GruY�i wafer dYalmtlO�.. .
.. . .. ,
H " ' ' H Unils �Ne •Na��, Mea�e d Cie or ' d.Ne vrater ':.. .... . .-.... .. .. . ;:,-:!Wn.... Y.-P � ..:,
,..noeded b IJd hemrfW .
' H fiokf' HUNts 'Na Na. Mu�sao'dihe a dUiewater - Flabocetic"Acklabtai,8 . � �
(1. �.,up7.'�.:60.. Na,^By�pio�kwK oi tl(ittldng'wa�e f W.orineUaf.: .�
. Potesrshim• ' •Ne �Na�� NaNrail «a,m� � � ' ,� . . � � . . '�aoa a Wn nem,n,� '•�: 1
� Slllcon. . �m �� Ne �Ne� Na1v211 ocw �:�: : Trihafometliar�es.tplal . :'ug7. 80 Nn By-pm�kK.t d drWug v�er cfYoiYiaton�qeb.+ . . . l,I
� Sodiutn ' . .m9�. . •16ee Ne NeWra�ly dxurthp . . . . . . �' . �' ed b W iwm4!a9B!Y�?%7T1iMc Bre bnned �� .
Spedtic Con�fudanca umhdcm� Na Na Moasure ol tlie btel amounl oi naWrall . • .����N°������d, c
;
Y � .. . ' + .. p�tibOutleL... �.. '�.,. ,�.
.. occurci�minerWain Itw wster.... . ... . . . . . �
SWnOum�.e8•�.� .m �Na Na� NaNrdil oca 5-� � U�derstendt�i You►:WaterQualk Data x
., , , '
. SuifaW '.'� m : �25U �Na�� Naturall.oaurt 9 y, ' ' �t
� Tem �aWre fwld ' Ne Ne Nelurell om . ... � . KeyTemu and De11n�11on� . � �
Ti�enlum uryl Na Na Newra�y ocwrting;vaed In paint qgmon�s.. Mu�mum Contntninan(fierd(MCL):'Ihe'highe"st Icvcl of a camnminuut ihm is nilpwed in ��
. ' 'uM as a reduci�a eri( ' .. . drinking wuter.MCIs•a�c set as�clou to�hcMCl:C as possible. ��`��� ' � �� ' �i
'lUrbiai ' NTU 5 Na Silt�and da In a uller ���� Muximum Coniomlwnl Levc!CoW(MCLC):Thc levei of a cuntnminnnt in drinking waier ' °
Zinc � m �5 Na Natumll occurrin. ahranizetl lumbin ., bciv,w whicb'there it nn knuwp or upcaed,risk to b�ai.�h.MCLGs allow fw a margPe of snk- �
'Wa4r contelMng more then 20 mg�i ol sodium stiaJtl rwi ba uwtl lor tlrinking by pe5ple on �Y• "
severey resUkled sodlum die+s:Wainr conlalning moro than 270 mgA ol sodium shwitl no4 Actlon Level(AL):The conttnlra�ian o(a comamitunl.whieh,if cace&kd,�ri�gerg�ir2p�mept�; '�
. �
be usad brdtlNJ��by�peopie onmoderataly resVktud salium diets. .„ or o�her requirements which 6�wmer"ryalem must folloiv.`'�"'�� �� „ ., �.;�. : ,
• ^ � � M{Iligrnn�s,ptr IIIec Im�,fq,rortesj�onEs'io ona pori_oJ:liquid in one:miilibn"paii.'abf'liquid V
, 3
" ' ,, ' . • . . ' � • . .. � (Panspermtlllori=PPm)..�: . :.::..,.. . • . , , .. ,;:.. . ..
S nthetic O anicCom unds includin Pesticides and Herbicides:, Miw��ms.n�r ni�r(uFn)corrcsponds w o��Pan ot i�qu�a�n o�.n�uion p�ns or iiyuia
. (Pansperbii6bn-PPh). . .. . . .
� Aladila � u 2 0 Herbidde used on row ero a Nnnogrumsper Iiler Ing/Ij corresponds,lu one�x�n nf iiqu(d�o one iriliion�pans oF liquid �
Ntlice ul u •7 Ne� cGcitln us on mw a ' (Ppns per�rillion•PPq. � . � . . � ��r
' Ala' W u �7 Ne Pes ae�seu on row.n s � Picocurie'a per Uler(PCUL1:Picocuriea�per limr is a mr�kurc of Uie radiooc'iivity in wmer. , x
Avazirre 3 3 Herb tle u on row s�: • Ne hdometde171�c6ldity UNI(N111):A meesure of the ci6riry of wume Turhidiiy in,eaiv,s �
arbo ran u 4a 4o s�idtla usetl on rmv cr 8.:�.. ..• or g rrru�:j�u�re�on���o��n�ow«,g�a.�. : .. . `
t.2Dibrornanenwne .�ng�l 5p o �. I umipen4d po ranpotr um- N1{cromMospercentimeter(umhd�m)eAineasurcofihe�auinmouMofnatumll occurtin
-EDB � eornelNn bnnnetl etltlitive - " ' mineinls in�he wutee � . Y . B � �
rtwseb u 7. 7 herbicitle usea on beans o�M ve ela es� yp�h Percentik Valu,r.The valua�eponed fa Ind and co rt rcsent�he 9ph
Mew �u 50 e seC az a�n tle PPtt P P��'u��G �
Metd u Sa Na sed es a sdl herb A P��mile ic o value on a sea�e of 100 thm i�ic��ea it�e percent o�a disui6uUon�hw is equW � �
Simazine u a a Usetl es an neroic o �o or 6clmv ic The 9(hh percentik is equnl io or greabr man 9076 of the lead�ind Eoppes va1=
euac oterep ugn 5o rva Usetl as en nero ucs dclmcd ot your waicr system., ,, . , ,.,. � . • . .,�
AGd(TCF7q . � � NAt7Jd:NaApplichUlc �. �� �� '.�.: ' . .��. � .4
ND:Na�Dnmable ot tesiing limii • �
•11w MCL Is tha sum ol tha Mro slaned compounds � Mlllion F{ben per 1{Icr(ME7.);a measure of the presence of nsbestos filxrs ihaY are Idnger '
� . Iban 10 mi'rmmMerx." � � , '
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mo nw s. u _. . _.. .. . rovn"_'_""• .. .. . ... e e�son . . .
.. .- . ...: .. _�.. � ., caE�of:tlRltN.GrW.o1.HW.?@ � i :olMiddle.Caun�YRd.IFlTv'l(E%: r i . � d6daTe�reRd.atarNoossueet, , .
e...: . _ .niCelNorNaAVe:;...:;..._� �. � : Ptbrlfie'smelFnelhborhoodE`ot.:,�.. .'. E'vN.W.'ctfUt.leJbanHS. �
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t� a a u ou i u qicliesRd SWofHawklnA.Rd�N � e enon �.. � ... . .
� - a11JRRrtBe'.; Ga�MaryQE� 1 H'PI.See ne�¢�. ';� � - � �.indufns Port JeHeison Statlat3.
e e��ore. .. -�. . �.. F'r�l��h,�a'.SdN:CaNy� e _rove ' ' IoMierereas
o .. 6am�l�funaheE � esmaAneIphboitwod;5.olMldd�a u ue�- .
a J erte�u..o?d--'_'—� ;. aa n nn :... :... �. . � '� " iry fltl.�RT ZS).E.W Morictios;. �:i' emeen u � '
as d:,W.oiHewXSns.Rd.�3N.ofH R. e .��ti��� .
� n� �c : e rove . .�..
ue n. . gewoo . :dNRkleCoinbyAl(F(f2�v.iEii .
o em � ;c_ � Uko's5teteP 'r %� �dBmd3ineri oc on
d��' �;� ew ea us e on on oma on on ma -
em �, ar e a s im e a een onm rwe o �e s, � �
� armm v�e .o orse •�.r eure :: ��• ,1�ypNedt/MorYnNaYIWi67e �
dVelaacFhy�, H.�a�� �.n t .ermngv •'. O; m en um �• .; SWalorgNg3dcRd:,,�n': .
arwid���'
.o(,S�rtiae Fwe,B N. .ol.or.on:Horse&ak Rd�. 1 ' oy nr i � ..�� rekd�al'seMced o8dt,)qeck .
Parlc:LoaAP('s.'Sd�,4fer-�..,•' oc on oydNeck.o➢of�esLNeck.d �badiriaYgF�mreci ba�.Pie.l.- , �
b�p�q�p�g,p� raeown.:' o�d'Srin Harlwr: dosRd.EbDeefSdd�id.�. ., .
yytirp,;,ldxtsp�p�.e;gb '' or on e � � � ona v e re�an � g a • r,,;� �� .
CL,kcYdre�Caperam�&Fam���' ren ver� - ..� anorv e� i tid�rl�pmtdSaltlelde.8&idar , •-. . .
reen = „� ae�c � .. . )SaabHobRd.EdfJit3e1 �'?
ren . �_. ., . a emunr. : u . .ofSunriseH : , . " dMisb�oRd6oiv,ee'n5amkiide rr:::�
dSagoY�pkwy 4&dLLE,aW.d.. . eos n �:i.� - en c ' �_ �au � 8teracet�.tdii�i,BuiY�i3�lim��'"�.
. Pkvy,�8N.c1l1RRIFleatt4�nd : au au e,... . :o�i3un acFl�.� . S.��t�kaM��flfltrudm ' .
� o roo . :..� ,�,: .; . : �"�` �.:� .' a a na - .
mn � " • &dPatiiq7.iNiili�odcHd.a �• o i uc me e uc reu��;
.WSa�BmcPkwy:R&dLll3R�EW Pi�&ms'S.4�E,adtndR'�. .dtJRRhpmGiPFiinK�fEstiLesS:� ,.i��. a v e �
Pkxy.&m�a`Sd;E}nR . '' " '" Dr.dW.dNdds ' �� :bdloLluL�e2,(&eeFwa�jPd;� eu e oe �
,Dr,9r�eary�le FWe,or ' .a � Pd;Snrdlwe.d .. ��� e en '. :•.....
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' ren oo eet s . ��� .. /SnmtolibnnineEbMart'�dmi. �.: � .dLiRfllydd¢:WeoixidesCiatriel .�.,I .
� r o emPon .. � � ��� o v e �ereaseace � � .� i Me..MaRabWaLnh.0 8k812�i :�;:. dal4n�N.otlnr+erS�nep .
. d�raor,rn.«cndsi�e o v ac ogue erea, o �� � Ri,EoHdOensM5Pdb0�e�
R4hie3ouhernteMdNHdiei .V1Fne�N,p.e.N.dKbodsiiQ,dSaC7:l d.6utnot' Nbfiil9daPw. . .� " NteieR�anDcme9��+��8-�
.n0ieenBralagridS�p tlaibor bnCarrieqd. e or .o oron, si e� ve. • �� VI�cDoesndhd+dearea.bjJ.Ed
�baassweebbtlie6 � �^� .. .�� ,� . , i • � o san ' � �_ txry&ookR:R.StabmvAidiFsbasidad, �
r.ge emPon �: . � Ctimmr ., .Nm,'.iryytm �. I � p�,.p��}j�+�g;�ef�e. 1�skaPaClanriaW hs .
' .daxnaan.saaJt�ert,orYdw�aa - s�mmva�a,�areiars�o��wi,v�e c � r�a«nsme�r�aaa ' � ewN:aKCouey aa '�Easa ` ' '
Fitl;a4dldaN.d H�rfigtneieeae�XrE�erabL.� e een .'.. � .� � i: seebab�vlorthszm.�.�� .i.,.y ;
� Dr,m,orafld:A95tr�Rtl.6 , erddnspUedtiatseqisfaYrlos, � n.orEol,Miller�Flaca-YapheN�fld:i 7�� uu ... . . '
dlemtaik sredso " B1mtrf�IddolertrmeCie�q,pqi}. 't .�'. on.orN:ai Lwi Atl. .a� �ambNEd.Stry6fodcRR '.. )
.: roo �ven•. ,��. . . `mno)� � i.� t � e Rd.6&da � S,Se�{�&dtlRl'�Yckld^9ar,'orE �t I
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� merHrkh.MN!(J YVlilem6/Qr . � on u _,.. . reb n�:...: • .1�
rawn._. r Flds:w.k[dWtr�qi��Fiadr� M1 Ft dwtnam.tha+rtt�lsFkdMfrv ' �tik.' un ea �.
' am ero� ma� n�u n �� h Ha�or - Sta�PkxyWdWtn4laLSttvd % �'� � �.
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• ^ " 12-Dlchbropropsne upll � ND : ND'. ND . 3B2 NO'- NU� N4-- 3✓6 ND ND ND I8 ND � ND ND•. 7f ND' ND�� NO 55�,}
-MeCryA•Tert�8uty1•Ethor(MTBE)upll ND ' 4.0 '. ND.. 382 -ND- 22 ND�� ��359 ND �ND`�ND' 48'. ND �ND` ND;. ,77 ,.ryD i .O�Y N0.-,65}
Taqachlome7lw�te uyl ... N�� NO NO �92 .ND .7S ND '356 ND ND� ND�,,�8 NR. � ND��ND 71 Mp, ND�� NO 55 y
Tmns-l2-0ichbtaethene ug9�....:�NC;-. ND ND 3B? . .ND� ND ND..,.:358 ND .N�:; ND� �t6. ND ' ND NQ 11 ND' ND N��. .:65 t
1.1.1-Trkhbroetliar�e ug9 ........'ND'. 4.9 ' ND 382 � ND:..SA'� NU. 358 . ND �ND: ND ' IB, �. �t�7D�' ND� ND��: 71 !lD,,7:;3y2.;�'12';::a 55'�.
?rlWoroe�huneup7...:......... ND � 0.8'E ND. 392. .. ND � O.Y � ND, �356.. `.� ND, �0.5 �ND � !I6 :..ND:; ND ND' �71 ND ,r�NDi,e N�: ..55
7iididokAtm�attvie(Fiem11)tpt .. ND ; ND ND 382'' - ND ' NU � ND 356. ND. ND NO... 46 ND� ND � ND � Zt . NO•- ND ND� �55�
t,2;3-Trkhbroptopene uy�l...::.. NDy. ND NU 392�'� '� ND' ND ND.,. '356. .N� ND ND 46" _ ND.. ND ND 71„ �ND,'�.ND .N�' S5
, 7,1,2-TrkhbrotrifWaoeUieneupl.... ND;,r; ND ;p�NO•��382"����-ND-"ND ,ND �.35,6, ND ND ND ., 46. ., ND�,, ND•, ND 77, _ ND ND..�; ND'• 'S5 �
P..m•Xylene uyl.......:....::..:M�.! ND' ND 382. N� ND N0.. 358 ND ND;.ND IB ND*i ND '�ND � 71 ...ND, `;N�;,,ND''•55�
OldntMlon By P�odueL . � ' ... . :.. _„.� . _..
�8rarachlomacaUcAddugri .:,...� NDi.: 0.7 ND 83� �ND 1.0 ND 31�� ' ND ' 'ND"'ND'_ .7. i`'.'ND�' 12.( ND. 37. ".ND �• 1ND';,�ND,;','.��
Bmrnodkl�loroaceticAdtlupll.::::;:�ND-� ND ND 63 ND., OS: NOJ'. 31 ND ND � ND ���'�7 ' ND � 0.8'��ND � 37� ND ''ND",ND':. : 7,
Chb�od�brortwacelic I4,dd�!W::..:�:ND`` ND.,..ND 83 ...ND ND...ND:':,31 � ND ND�. ND ' "7� ND ND � ND-.. 37 . . ND ".ND'• NU':�:: 7 .
. .Fisloacetic�Hcids:blai�5)uy0•....•.:ND' 1S.'.tND . 63.. .N0. 1$:�.�ND��'r�31 ND 0.'d'�� N�°� �7 ' ND 7.4�� 0.8. 37. � .NO. ..OS •N0. 7.
Tdholanathenee.IMN ugA.,.;e..; ND 2� ND 81 '' ND�� 25 � NO'��,'31� ND � 19 ND� ��7� �ND' �.6.6 OS 38�� �N��'�.NO" ND'`• 8�
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+200� Annual:VVa.ter�Quatity Stat�nient - Suffolk County Water'i4ut�iority � � � :
�(For CalendarYear 2001)
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' Disidbution Area��6..; ' ' Dlstdbulloe Aroa 7. �.'. .'pi�ttlbution Aree 8 ��� �Dietdbution'Aroa B" ,Dlstribhtton Area YO Distdbutfon Aree 17 �
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' �mv �yn My. resa� �ow tW+'� Mu. T�+ wv ..ry� .Mw rosn �cw .wyn nw, r�„ � 83�"� � �daae6�qs r+o.a
vaN,e velue valw vaan vaka ve4s vel�» vawm v,duo, vaw Wtw vaY,e vaWe 'ake vwe vaNw y�.,y�..r«m
� ND ND � ND 2 ND ND ND i , 2.4 2.4 2.4 1 ND ND ND� 2 :;N� �N� NO 2 • NO� ND '�ND" 3
ND ND �ND. 2 N� ND , ND i "N� NO;�NO' 1 ND ND N�: 2 .ND 3.4 ..2,7 2 ND ND ND 3
.NA .-NA NA 0 NA NA NA 0 ''Nq NA �NA` 0 NA .,NA . NA� 0 ..�NA NA �NA 0 NA 'Nq 'Nq p
NA NA •NA 0 NA NA 'NA 0 . NA NA ��.NA 0 -_NA NA .NA 0 NA NA NA 0 NA NA NA 0
ND 328 +ND 23 NA NA NA 0 ' Np 'ND ND 4 ND 206 ND� 6 ND 268 ND 22 ND 280 �'ND 31
. 16.0 77.8 37.4 170 21.8 67.0 58.5• 24 220 46A 319 31 1Bb 87.8 842. 7g, � 9.6 68.0 �36.1 138 7.8 85.0 38:6 163
ND 0.08 'ND � Bi Q.03 0.08 0,0.5 8 �ND�'0.06 �.ND� 73 ND 0.06 ND 32 ND 0.06 ND 59 ND'"�0;11� ND 86
ND 0.01 .ND �26---,Y_^.- ND 'ND� 6 �ND _ND ND.� �-G-- � ND. O.Ot :ND 13� .ND 0.03 ND 27 ND ND• ND 24
�'�ND ND ND �Sd' ND ND ND '8 (JD ND �ND 13 •�ND ��JD �.ND 21 _�ND ND ND 43 ND N� � ND � 62
ND ND �ND SC ND ND ND 8 .NU ND ,�ND . 13 ND ND ND 2i. ND �ND 'ND 43 �ND N�� ND � 62
ND ND ND � 56 •NU 'Np 'NO � 6 ND N� .ND 13 ND ND ND 27, �ND NO �ND 43 ND N� ND 62
ND D.DB �ND 217 ND 0.06' ND 6 'Np, OA7 ND 146 ND �0.09 ND. 121 ND 0.09 ND 463 ND" 0.08��ND� 2B8
. OS 6.4 -2,7 18 3.6 8.0 8A . 4 .09 �B.B 3,1 5' 1:6 72 3.7 B � 0.7 B.5 '2.8 15 0.3 7.8 �3.2� 22
52 220 15.8 20 21.B 25.8 242 5 &1 27.6 132; 5 9.8 . 31,1 232 13� : 8.0 30,1 17.4 17 6.0 34.4 159 24
39 18.7 72.9 277 i5J 1�2 762 6 1.1 zs.o 'isa 146 7R 31.1 21.1 121 6.$ 77S '16.6 463 4.8 47.6 21.7 286
ND .ND ND 54 ND ND ND 8 ,N� ND ND 13 ND ND .ND 21 ND �ND �ND q3 ND ND� ND� 62
N� . 8 . ND 50 ND ND ND ` B `ND .ND ND 13 -N� 70 NO t¢ �ND . 13 Np 3B ND ii ND� 63
ND -0.12 ND 21 �ND 0.06 ,0.02 5 � ND 0.03 ND , 5 ND 0.39 0.0.5 13 'NCl �0.04 NO 17 ND 0.08 "0:02 25
� 72S �84 18� 128 147 135 �1. 37 165 . �7p �5 51 786 �153. '�&: •„50 � 181 �88 15 42 166 �9 '' 22 .
� ND N� ND 217 ND ��ND �ND 8 ND ND ��NO 146 N� ND . ND i 121� :�ND ND NO 463 ND ND ND 296
182 80.8 51.4 20� 732 90.0 B1.1 � 5 �25,8 1020 I32 , �5 25.8 1162 1882� A2� ,22.4.:100.0:57.8 17 232 98.4 48.T 24
ND 186 .ND ' Bt' ND B9 41 8 ND ND NU ' 13 ND 672 ;:qi i 32� �:Nb r�62 .ND 58 ND 74 'ND'- 86
ND ND �ND� � 2f ND ND ND : 5 .ND -L7 ND 5 ND .iJ �N� ': 13• ND �, 1.3 .:ND 17' ND 4.1 '��ND" 25
ND .2.0 �ND 54 ND ND .;ND ; 8' . ND ., (JD .;•ND 13 ND ,26 'Y:U✓� 2(, 'ND :'ND �ND 43 ND ''��1J0`�° ND� '� 82 �
0.81'�3.56 .3A8 i 2p' 4.12'�A.73 �/.38 : '6' 0.81 .8.45 2.48 �� 5 � 1:17 8:07 5?2! 13� -7.16 .,7.11 357 17 O.B3 5:18�"2.82'- 24
ND '.17 'ND 81'" �ND 'NU ND : 8 �Np ND ;;ND ; 13 ND �13 �,ND � '32,%' .ND :ND ':ND 5B ND 42 � ND� '; 88
� ND �2S 0.6_ Bt' 0.6 �12 ,09 ; B; ;.ND .,1,4 ��0.8 ; �3 .ND ..19 :0.� 3Yr :;ND :C 42 9.7 70 ND � 7.7•c"'7;7'•` BS
. 0.68 �.B.Bt �5A6 i217.. ...553 �5.84 '.588 i B. 0.T3 �87f (6.05 1�6 .2.53 :922 713��.12�, 1.80 �:8.34 �720 463• ND 9.35 '6:33"'.2g8
�NO B:B .3,4 ;74B� ��ND� NO ;ND � 4. ��ND .ND ;ND 1 7, ;N� ,,ND .,ND ,� 7St: ��ND 8.7 :�35 „}57' �ND'� ND 'NU'•"".q8
. ND -.0.12 � N� '217. �ND �ND 'ND ; $� 'ND .055 .'NO '148'' ND .p.17 .ND ;iZi-. :�ND . 0:46 uND" 463 'ND..'..Q'.�5'•,,ND, �2g5 �
� ND .ND 'ND �� 21': �ND �-ND NU ' S �.ND �..ND ND � 5 �ND 0,19,,.ND1 ' 3.,. ,.NO '�Nq,-�'ND tE ':.':Np:+�.Np ND�:,.25 .
_ 72 .82 . 7S � 78 7.1 7.8 ..7.4 4' 6.8 ...02 .72 ': 58: , 7.0 „�.8:0'.�';76 t 12:.. >5&Y,.::�'8.7�.^JS 5Z ;-SZ -.8;9,`•.Z1'� 24
���B.S �8.0 `7.3, i15f ' 7.0 7S !7�? 1 tY' 7.b� ..BA ��7:A �.28 ' '::7A ^8.4 ..,�7.3 � 80.t ••.&7�.: BS �:R3 121. `89'..�•.�8:9��.•�Y.2:••F;138
. '0:46 ''720 079 51 0.86. 1OS 1.00 � B 0.42 ��123 ,0.88 13 _.0.50 t.q8 7it '. 21 058.�128 0.H0' 43 0.4Z 2'32 0.7B- 62 � .
. - .7.45 '.8.5 �,62 ���,54 � 62�.:�8,�� ,6:5 ,�G. 3.2 ��`,�g "�g �.13� ..4.1.: .8k 7„D .�. 2k. 3.0....�.3 '0.T•:•.43 "'32 .SB.�- �4.8'. �.62 �
'��.i" 3A�^�.:'11/k . 70 ,:51T �it2�•.'Y3.7 it.�.�. 8' �::3:3 Si6 :8.2 •.13.�` �66 '17:B :125 `�21� .'�T iiJ.6 8.1 43 '.3:0� 274 '8:1�:,� 82
' 03 �222 .UB :18 � 270 �•235 '�?2f . S'.. .55� � 309 :')85�� �1, 89 :'.'i3,p� �234 '.1�?.. t 100 '"?ffi � 230 . 58 .80 '•27�' ;751:• 2$ '
0.01 ��O.OB �0.04 .51 0.06� O.OB O.OI 8� ',NO „0.11 U.W i�� 0.02 �0.12 ;O.OB ; 2t ��O.OZ OA4 0.05 .43 ' RD':0,08•��0.03�`�'' 62
0.7 �33.8 .13.5 '277 B2 12A�. �10.1 '. 8•. ,0.5. �28.8 tIS �7/8.. 09 34.0 �8.1 '.72L•.� •ND 489 20.1 481 0.6'::°2(j:?.."7.9�"�'28G
10 18 .11 '138 8 '13 i1 �.1Y�� tA ,12 .,��1 !'26: .�f0 13 71 � 61.. . .9 :�.13 it tU3 �/0. 13 :'�t"� 173
�ND �ND ND I 5{•• ND ND .Np 8� Np �ND Np ;�-t3=� -.:ND��-�-NL� :t�0 '�21r- ;ND �.ND ND 43, ND '�NO��`.N�'��" 52 � �
oar y:o. o.0 �so.. o.zo 0.38 Q.�3 ' 8 4;27 1.7 0.61 ' 13 0./7 13 OS �1L!;y:.. 0.it-::.q:6 0,42. 3B 0.11� 'Z0 'Oitp_.''-u3
��ND . ND 'ND '21�: .�ND 'N6-�Hp , 5 --ND.- ND ND 5' ND ND- ND i-13- -ii;h'4":60:�n:NO�rn�17. � �. g^•-
. . . . .:_N .�_0.15' ,..NU.. .� .
' . � . .,.. .i . . . � .
��'ND �N�' ND 'S3 � ND NO �ND 8 �ND ND NO � 17• ND ,ND ND ' 24� 'ND �'�'ND � NO 58 � 'ND' 'ND � ND �'118
� ND •�ND ND '37. �'ND ND HU 4 ND ND ND 70• ND 'Np ND 16 �ND � ND �ND 31 ND � ND..Np� �fip
j ND -.0,8 ND '37�•'� •ND ND tO 4� N�� ND NU � 10 ND f1D ND ' 15 . NP : ND Np 31 ND NO' ND ' S0
� -ND �NO ND '�63 .NO -ND� ND B ND Np ND �i��� ND ND ND • 26 �Np !.�ND ND 56 ND ND � NU.�' 115•
��ND '��ND �ND .37 ND ND ��ND � t' ND Np NU ��10' ND ND ND � 15�� DW � ND ND 31 ��ND'• �NO'�ND'�' 60
�ND �ND ND 428 ND ND ��ND � 7� �ND ND ,NQ ;135� N� ND ND ;118.� •ND : ND ND 372 ND 43 ND 582
�ND�•:�ND 'ND �;88• � ND ND �HD ' 8' ND Np ND 17.� ND ND ND •?b.,:, •ND •�ND ND 44 NO ND�•',ND'� 71 �
ND ��ND �ND ,53' i ND 'ND Dq � 8 ND ND ND 17. ND� ND ND ;26• ND �'ND ND 56 . ND ND�"ND''''�176 �
, �-��ND 02 -ND 53 Np ND ND � 8 ' ND N� ND 17 ND ND ND ;26:� ND ' ND NO 56 ND ND�"ND•. �yi6
�ND�� �ND� ND 53 ND ND �kD � 8 ' ND ND Np 17, ND 'N� ND 26. ND NU ND--.56' �'ND" "ND'"`,-�ND"'�118
�ND B.7 1.8 `86 'ND ND � NO 8�' N� 1.8 ND ' iT ND 1.3 ND ,26 NO 2.8 ND q4�� '� ryD^'^•4�'��^�NU'"`,71 '
ND 2.1 NO 2M ND ib ND' A8 ND 0.8 ND 66. NU �.4 N� 740 ND .�1.0 ND 224 ND��' 2.3 '�ND 384
ND 79 ND 272 ND OA ND 48� ryp z,t ND 68 � ND 3.8 NU 740.:. Np 1.5 ND 220 '-��ND��"�'3,:4��"ND"'38,/ � �7'
, .N� 0.8 ND 272 : ND ND ND IB ND 'N� ND 68�,. ND ND NU 140r ND 0.8 ND 224 ND ND �ND;� 394
�ND '3.0 ND ?72 ND' tA ND �8. p1p 12. ND 66•� ND 19 NU :74q.:,, ND 19 ND 221 "-�ND",�''�:B"�:°.ryp. '.gg,{
�'NO �1.4 ND 27Z°� .•N� 1.0 NO '18', ryD 1.0 NO i6fi. ND. ..k0 �ND q40, ND 0.8 ND 224 ���'ND'^22'="ND,;;','391
'ND �b.8 � ND� 2Y2� -,ND 1:3' NO �8 '' ND' �0.8 ND �.66,.,. ND 7t0` ND� 1�0 ND ��.1 ND 224 ND�'"'9.3��[;ND'•'�39t
ND �-ND ND 2T2`- N� ND� ND 48' NO ND . ND '66° NQ� ND ND: 140�� ND ,ND NU 224 ND �'Q.B'"'�JD''344 �
ND� 3.8� �ND 272�• ND 2.8 1.4 48 NO 9S 1.5 ,66�.. N� 4.7 1,3 140.� ��ND '3.1 1.3 ?21 N� ' 82��'•0.8 384
ND ND N� 272� .NO NO ND 48 -ND ND N� 66- ND .N�, N0. 140 ' ND 0.8 N� 224 ND�'ND�`"�ND 394
� ND 0.8 ND 272 •,ND 0.8 ND �16"' • Np �,� ND. 66' NO �0,6 ND 140r. ND 1.3 ND 221 �����ND"'13"��ND�' 391
ND 07 ND 272 �ND ND, NO 48' Np 'Np ND 66 ND' 0.8 ND 140� ND 2,4 ND 224 ND' ND"'�ND 384
�N� �ND ! N�- 272 N� 4J 20 48' ND ND ND 6S. ND 2.6 0.6� 740 NO � 1.B ND 220 ND ' ND � ND' 394
� ND 5.7� � ND 272 'NO ND ND A8� ND ND ND 66 �N� 1;1 Nq� 140� NR 19 ND 224 'ND '32 �"ND 384
�ND ���,ND ND �272 ND NO ND 18 ND ND NO 66 ND ND � ND�� 7I0 N� ND ND T2q � ND��'ND" 'ND' �381
�ND 3.3 N� 272 . ND 3.4 LO d8 ND 4.3 1.B 66 ' ND 3.0 0,9: 140 ND 4.3 1.7 22� N��'.1.6� '0,9'� 394
ND 28 NCI 272 ND ND ND .48� ND.' 29 1,3 66 NO 21 OS. 140 ND� 3.7 12 224 ' N6''•4,0'.ND� '389
ND ND ND 272 , ND' ND� ND 48.� Np,, ND ND' 66�, ;�ND� 0.7' ND 140 NO . NU N� ?24. NO�' 9.0 'ND 3B4
�ND � ND NO 272 ' ND ND ND 4B� ND ND ND 66� ND Np NO 140 ND ND NU ?24 � ND 'ND"�ND 38{
ND 27 ND 272 NU ND ND 48 ND Np ND 66 ND ND ND 140 ND ND ND 224 �ND•" "ND�"'ND' 3B4
ND N� ND 272- . ND ND ND �6 NU ND ND 66 ND ND ND 740 ND ND ND 724 "ND�' ND ND� 3B1
' ND ND ND 18 ND ND ND 3 ND. ND ND 5 ND OS� ND 12 ND' ND ND 15 ','�ND���' 0.9-�`ND'�� 21 J •'
ND ND ND 1B ND ND ND 3 Np ND' ND 5 ND ND ND 12 � ND ND N�' 75 ��ND" �7,0 ND 21
ND ,ND Np 18 ND ND NO 3 ND NO ND, 5 N0, ND ND 12 ND ND ND 15 ' ND•' ND NO• 27
ND 09 N� 78 ND 0.3 ND 3 Np 1.8 02 'S ND 0.7 NO 12 ND 0.6 ND 15 NO 1.6 ND 2i
NO � 0.8 NO 18 ND 1J 0.5 0 qp �,� Np 5 NO 3.9 ND 11 ND 0.8 ND 14 ND 3.1 OS Y2 .
7 '
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, 20Q2 �►nnua��Wat�r,Qluality Stafem�ent Su#fo��,.Co:un�'�;�Alater`Aut'h'oi�ity`
• ,: F.ac Calenilar Year.2001
- � .Dislribulion Aree';12.. ... _DletdbuUon Area;14�,•; ��Dielributbn Arca 15.. : �, DlstdbvNon Area 78;,' ,':Dfehl6ullon Aroa 20 �
.. • - ,,. - . ,., , . . .
� .r„ .- ,. n�qeoiaaeanos : ea& '. A�wpp�!os� aod ' . aa+wanmary. • nna: �aanqed�.�++a raa- ?�id:dRearqc w.a
..._ _ � . .. -�Lmv HWh"''M'F� Teslv.. .WY� Hgh` M9. Tmb 1.6w �'W� �AW.' TeCe Lav.. Hgh M'C 7We low Hqh 'M4. Teeta
. .. . . �VaM1N' VehN' Va1ue, • VeUe'.Ya4N YahM Va4M VaWa Vek1e ,Vd11! VBYIo:VaUe � -�� ���
' RadloacUVlty ;.�. . . '. � • � � � �
' Gross Aiph,i aclfvity pCVI-........ ND ND NO; to MD ND NO 1 2 'ND ND NO 10 ddD .3.3 , ND 53 ND ,3.4 'ND 67
Gross Bate eciWlty pCN;........ N� 3.0��ND; �10 � '4•4 '�4.8 •�,4,6;. 2 ND" '22 ' N� 10 .ND ,; 4J ,� ND 53 ND ;6.9 'ND 67
BlemuCf2lA;pCU1 r............. �NA NA 'VNA 0 "NA�>"•NA �NA k 0 ND •ND ND, 4 ..ND 95.0, ND� 48 ND �,NO . ND' 60
, ; Ceeium•13ZpCUlc::...�..:�...... NA �• NA "NA,y 0 �NA •�•NA ';NAt � 0 ' ND ;',ND ND� 4 .,,�JD ;24.2, ND� 48 ND �8.B '.ND: 80
' qedon pCV):...:>:..:..:.....: ND �323 �ND 743 ND "�ND :f.ND 9 "ND ' 261 ND, 117 ND �.ND ND: 10 ND . ND 'ND 34
� Inwgenks:� � . �;:. . : �.� : .� : . .
, ,: : . .
NkeilnNy.�toteimg0....:......... B.8 224.0 St.Si-643 8.6 f03.8,27.9� 63 , 7.6_107.8 42.1• 671 722,�121.0,,�41.8. 167 7.6 �.66.8.352' 232
Aluminum mg9 .:.:.....r.:.... ND '-0,51 '0.04 i '838 �' N� 0.01�. ND . 23 `,ND 024 ,�NO' 78 ND� 0.36',�-0.02 182 ..ND 0.18 '0.03� 442
, Ammonla„frae mgtl,:...t..:..... NO-0.53-0.01 �139 ��ND ' ND ,;ND 10 ,ND ,;0.78'.;ND 130 'ND� 0.04� NO 27� .ND. 0.05 �.ND I. 70
qt�onicug�l:...:::............ ND - 6.3 ND' 346 ND , ND:,ND' 23 "ND 22 � ND 215 ,.ND ::•2.7 ND. 755 N� �;.27 .ND 775
. gndummg/(,,,,,,;,,,,,,,,,,,,"ND �ND"<%ND� 346 ND '�ND :;:NO' 23 �-ND , ND 'NO, 245 �ND .�;ND ND�, 155 �ND ND �:ND 775 �
. . 8oronmp4,....•.:............ ND �ND "ND � 305 �ND ND -ND� 23 '�!D ND :ND: 241 , �ND �nND ��,ND 155 •'ND 0.62 �ND' 173
� � BromNe mg� . � �...;........ ND 0.18' ND � 857 ND NU '•�ND � 30 ND 0.08 :ND 964 ' �NO :NP ND� i20 ND ' 0.08 ND 203
....
COZi.cakylakdrtgll.....:.:...: ND ` 132 '�d.3 7B b2 'S.5 �'2.4 B ND 16.7 ;.37 59 • 0.1 � 19J .�5.0 22 0.3 •8.3 3.0 33
� ColdummgA'....:.....:........ O.B 43.8 15.6. 121 �4.7 14J 8.1 10 3.3 37.9 14.4 93 4.5 41.3 17.4 25 02 30.0 10.9 88
Chbride mg/F.:..............: 3.0 58.3 247 857 3.A i6.3 6.3 , 30 28 �1702 26.5� 863 4.B ��68.6 �19A� 720 3.8 32.4 ••73.8� 203
.Cobp11;59,t�1...t:.......::...: ND 21 N� i 346' ND ND '�N� 23 ND N� NO 2A5 N� ND .ND, 155 NO +NO ND � t75
� �CWor..unlle,�,....�..:.......�.».... NO � 75 ND . 233 'ND �fi ,ND ', 23 ND 19 , ND. 230 ND ..17 ,�ND, 34 •ND !34 'ND &5
, Copparmgll�,-....�....:�.�...... N� 0.22 .0.03� 233 ND 0.08 '-ND 90-� ND. 0:17 N0�-, -96 " ND �0.28 r.0.04 25 ��ND 027 'ND-' 250-
Oiwoh�ed..�olMs,WWI mg�l........ -22 � 227 '�•97 79 25. '•88 �-41� 9 24 338 . B4 . 59- 42 .20.5 � 87 , ?2 13 771 '74� :-?3_.
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FlWrkle mg9...�........ ... .
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9
. . . .. _.. ... .----._... . .
: � 2002 Annual Wa�er�Quality Statem�nts f Sitffolk°County Water Authori$y� :
(For Calender Year 2001) �
�.
. . • . _ ......, ,. . ., , . .
.. •
� Dlsid6upon Area 32 _ �Dielitbution Aree 34:'.,„� Didirl6utlon Ana 36..��;'Dlelri6utloo Aree A4� �;DlatdbuUon�.Ares 45 '� •;
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� . _, .. .., .. � OTHER COMPOUNDS.TES.T.ED With Negati�re�Results)>-; � -:- � �
Suffolk County Wa[er Autliority�also iested foi tl�`e following�terns,and they were not detec'ted�anywhere in our sys'tem dunng 200f. '�
1.1,1.2-TetrechloroeUuane PJCrin . . . ' � . .� . . CNomneb . GI hosaJe Picbram �
YP
... . . . .....>_........ . .. . .,... . .
i.t..P.2•Tetrscliloroefhene Allyl Chbtk3e•� ..: .. , � Chioropyiibs....:.:: HoplacMor Epmide•, PbLvssium-40
1�72-Tdehbtoetlwnn. .. . AmerklUm�241 - ClilomNalaill"'_.''``.'.' '. _ HepfacMor'. . . . .. . Pmnamide •
1.1AkhloroproPe�e Amelryn .., . . ': ChbTroPham•. �� .�. . Haxeddorohenrena����;� . Promeuyn
� 12,&Trlddombonzene Mlhracone � ' Chryaene � HezechiorWufsdierie�,. Propedilor � �
7,2,4TAchbiobenzerw Mtlnany .. Cis-1.3��Ichbropropone Hexaclilo�acydopentnden"a Propazirre .. .... . .
12�4TrImeUrylbenzena FvoclilM-1016 � � � CIs�Pe'rmeiheln . Flezachbtoethane': , f?topaxur . . .
72�Dlbromo3-ChlomPropane Arochlort227 . �CoWilt�l'i0activlty , . Hexazirwne: . �. � •� Pyrene' ;�: -"., �. . -
�72'Dlchlorobeniene Arachlor 1232 GYuna:lna . ' linidachiopr(d . Hadlum•2?8 .. " .
�1,3,S�Tdmetlrylbonznno � Arodilor 72a2 . � �yenida . � indeno[12.�.G.OJRyrene . Sec•Butylbenzene . „_ . �
.1,3•Dichloro6eniene � �Arachiqr1248 G,y���e ' ' .�. � Isophoro�e � ,. Selenium ..
1.3-�ichlomprbpane: fvochibr 1754 � � De�a�On ... � Isoprop�iben�oe SMer . . . ., ..
t.b•Dkhbroberizeno Nochbr 1260 . . . L1CPA-(�eclha�j .;� .. ' Laed•210 : . . Sfiveo-770 , ,... .
t•Chbrobulene� � Benlnrnn: . � Decachioiobipharryl>,.',} . Coad-272 � � Slivox(2.4.54P) . �-�:�i� �
7-Na{Shlhd =. . � .: Bonz(AlMthr'scene� .. � DIIZEtlrylhexylledipale'..: � MeWlhbn '. . Smtevyn '.;. �,., :
"22'.�.3'�4S'�6,6-Oclachlof�IphetiN .8'unzene�.'� � : �' , ' ISII2�a.4�he*YO PhNi�lale . ' Alanganesu-54 �-� .. � Svdium�22 . ' . �
. :�2';3;3�:d�&HaPlachiombipheoyl: �Benzo(A7Pyrene-� �� � �Ie77noo' '•� . . • MBAS � StandardPiale.CounL-.:n��;,r•.� �
'2.2',3',4,6Pantachlotobiphanyl Banzo�BjFluoranMene � Olbertzjp:F�,a'nthrecene� Me�cury � Sryrune �
2,2',4,4',5,6'•Hexechlorobiplierryl Benxn�G,{i,IjPerylene ' � �ib�pnochlor,omethene MelhaerylavtrYe • Tebuthlu�on .
2,2',4,4'-TeUachioroWphemN , 8enzo(KjFliwranlh'ene Oibranomettiana '� � Melhiow`G � � Ta(bacil �
2.?-Dlchiompmpane � .Beryilium��. � ; Diwmbe �;' .. MeUwmyl;'� TerbuUyn ., ...,.. .
2,3-Dkhiombipherryl � Boryllium-T , Dlctibrprop,•�' Melhoxychibr - ' � TeA•8utylbenzene �
2.4�Sd.. . BHC�Npha ' ' Dichbrvous•' ' . . MetlrylP.crytala ' ' ` TelrachiaMnPhos ... .., ..
2,4.5-Trlchloroblpheiryi 6HG Beta INekfrin � � Metlryl iafide � � Tetralrytlroturan ' ;"
2,4•D _ � ' BH0.Doha ' detlryl Ether.' � ' Me11ryl Paraoxdn � � "" " Thalllum
2,4•DB�, � BHC,Gamna(LlrWsnej ' �leUryphth0lote ��� Motlrylene CNoride"' �� Tin '� � � �
' �2,4•DlNhotduene ' � Bramc6 � � � Dimelhyphttwtate MoMhuzln '� . Tduona '^` "" ;
2,6•Diniporoluene � -Biortaocetk Adtl � Di•N•BuryipliN�alele , ' ' Mevinptws' �. Total Chramium � �
2-Bu4vwno(MEIQ Bromadanzene . � DipHenamid... � MGK 264-Isomer A �' Total Orpank Carbon'� ' .
2�Chbroblphenyt. Biomochbmmethane Diqua� MGK 264-isomor B To�sphonn ...i. . .
2•ChiorotolUeno Bromaneihane ' EColl � Mireic . � Trans•1.3�Dichbropropena. , .
2•Hexanone � ' �8uiachlor . EndosWtan t,, . � MoGnale . � TiansNonachbr ,,, .
3,5•Dlchiombenxnfc Acid �8atylale �� .. ' Endasulten 11.� ' Moybdenum ;��� , . T�ans-Pertnathdn „ . � . � .
3-Hydroxycarboturan 6utyibenzylphthalale . EndosWlanSuilate � : NaphthNane' . TribmmoacelicAdd' �,,.,
.4,4'•ODp • �Cedmlum � .'• Endiin Aldehyde .. NaproparMt�u „ Tdadimekm , . , �
..4,d•..ODE :Cerbaryl..: . ' Eritlriri � . �N•8urylboiueria „ Tdcycezde . ...
4,4'.-DDT �s� ��.��Carbon�01su1fMe.. '. EP,TC � NiVNa :. T�illu�Jin;,
�4-Chlorotdueno � � �Chlo�vMen • � Ethoprop � . NiVobeazerre � TdBum�,. . ., � � ;
4•IsopmpyllWuene � Ghlordarre4 ..' Elhyibonzenu ' Nodlurazon, ' Uranium � , .. . .
�4-Methyh2�Penteiwno �� Chiortlene(Npha). � E1hylMethacrylate. . N-Pmpylbonzene � � . Venadiqn;, . �'
;:4Nltrophnnoi . °-Chiordane(Garnma)• � Elridiazole"., . Odor. ..�., r � Vertwiale;•� �
� ' ��Acenephthylone�� � �� Dhio�darat(TechnMai) � . Europlum152 �, � Ozamyl ('�, . � VirrylChlor(de � . ��•�
�Acolochiof i � CblordarB(Trans t�PnacNor) ' Europlum-754 •. o-xylene ; . Zlnc•FS _ (:
r..:
.. 'v Akkowndc`.. . . . . ChbmUeRzone .p . ��.:a - : Euioplu'rM156. , , :-:r. Pa�aquat I:. . Zlrcon1�95 � ,
'�AcilluoAen . Chlorobeqzliete . Fenadmol - . ' ' Pebulate ��.r . . � .. ?.,� 1'
::AcrylonitrNe � � Ghbroeth�ane ' Fluklone � Penlhochiorophendu.�..�.: . ...
��Ndicarb. ." ��.�Chlotomutliene . . Fluorene � Phenanthrana: �� ': 'i ' ':.�in�.;;�;�•n.... .
. ` SPECIAENOTICE FOR' ' ' Regional O,ffices
,: , .
BREN7'WOUD�ANQ>FAIR H/1RBOR WATER DISTRICTS� �`� � �
��The:SuAalkGaunry=WnterAuUwriry�ouk�overthe�opere�ionnftlieStentwoodandFairHa`borWmer � NnrmnllwFinctitinui�Hlorday.Fridciy.A:3�¢in.'S�OOp�' '�� � �
�Diatriw im2000:tTat rrsuysforBmntwood u�c includaFm{�ie informatltm found in the main'section �: . K'�%km Regiooai Olfice - � Y."'.`.,`,.��".`... .� .. . . i .
of thie rcporc'�Ruulu from�the Brcntwood ams may tie found undei Disin'MitionMrn 12 Rauia forFair� J 26U Momr Parkwuy,HaupJuuge,NY��78A(631)SR2-221I,,.�.� , j .
.�Hs4morcieponed�onpage•12mderDistrihutlanNmf}IWDAItlwughiheeeitemcarebcingpmvidedup- � CentrWReglwulOfl�ce „ � . ., .. .. ., .
. , �.-aramiy,plcesrlwpsaurcd thet,infonnmion you rcad'elsewheie'in thic booklei ibout ihe promc�ions and.� : ?A145.t�outc 1 j3,Suiic I Coram.NY.I I727(fi31)G9R•95t10 � . i
' -servicea'vie oRer to our cus�omeri applia to you as welf . .. . . Easurn Regfmw!0f6�x �.. ...• f .
' ' 'SPECIALNO7'ICEFOR�RIVERSIDEWATERDIS7RICt. > b?aowg�wt�ed�a.w«�n�mp�ea.�.Nvnme(61i)2esio�a • ; ;
� Porthe"Heydrtg Impolred iAG TDD � i
, You wili find Infoimotion penaining to our fesung bf wetcxomples fmm youiared�on p8ge13 under � ��•' ' '
Distribution Arca�'RSWD.,(Aecording ro ourcaicuieuon�we Seiv$epprox�mamly 1734 peopie in C c Customer5erv{ceNumlxria589�5210. ' - , ,
A`dmiril`strylfveORlm f '
Riveraide:)Although theu ikms sie beiag�piovide'G:aepuatel�.plcei5be auukd�ihal.�nformnifon�yau� .. .'qyj�Sunrise Highwny Oakdnle.NY I ITR91631)SR9-520D�..�5�, ,. . � �
1ead elsewhcrc in ihis bookle�about��he�pPoicetiond and�ernces we olfa to�6urcusiomers nppiies to r�y.'.Emergency ....: :�� . :' � � ' � . j
you en weil. .. .- . �. . ..�� �, ..� . � • . � fv�onday-Friduy 8:70 a.m.-B:00p.m.picnsc coilyour fcgmnal oRce...,' t �
SPEGAL NdTiCE FOR.STOIVY BROOiC VI/A7EA DISTRICT''' n��whcr nuurs t67�)t�s�o66� .. � :
You wiil find infmmmion penaining Io ourtaiing o(wem��smpla,from your aiw dn this poge alang�; .. , '�'� ` � , . „ �� . !
ro��a.:. Federal;PWS ifJ Number5 "�
wiih wme.sWdsdci:pertinent to yalr sys�em.nm lista!beiow Aithough thae items are being:p •� .. ! �
cd aepommiy,pleatebe assured thu�faforma�ion you rcnd eisewhcre M�his booklu a6om ihe pmtwionr. �SuiToik Coumy Wmcr A'vihomy• 5�1052fi• �� '� •
nnd sttvica we ofiaio ourcustome�s appiies�o you as well:„. .:� ' � Brcnlwu�W W:ner Dislricl 5103692' .,, ' . � �.i
" SPECIAL NO710E FOR CAMP HERO WAl'ER DISTRICT .' ' :ei�crsi�c wnmr D"ismct', S�USfi55." '' '
The Su((olk Coumy WmecAwhorny uwk over.operation of Cnmp Fj.ero on Sep�embcr 28.2001.Tut�. ��Siony 6n9ik Wuici Dixirict S�p3698''� � ,-„�� �
resui�a from yovr�orca�moy�be(ound on p�ge 12 undcr Dis�nlwtion ARa CH WD.Acrnrding to our caL � Fatr HarMir Wute��Dixtriyy • SI 11)59J.,
-�suntiona.:we scrve�npproximately 72�pcopic in Camp Hem:)Alihough ihese iicros ate heing Pmvidcd•�� Camp Nem Wamr Disiria •5121q74 �r'+� . �
=::separamly,please•be nssured�hm�informmion you iead eluwhne in ihic bookid abomdhe proicctions':�• � �� • � ' '•
�nnJ serv{ces wc oRer Io our cuslumea npplics Io yud as wcli;. •� � �� � � �
• Need mnre infamwtian about.tu?PI�+u.re virit nur.websi�e ru wwwsnvarom�or�ive u3 u
. '. .. cn!l tu 585�520d You!muy nLm he in�err.+r�rl iii ruterivling qne of the;mee(ings,iif tIJg,Suffofk
CowuvWaterAuthoriryBwrrtlrJDi�ckYnn. Plruu�jeelJreemmtr�ul�hesemeeting.r,which
StOfi)/B�OOIC WBtC�DIStfICt StBtISfICS ,ure generufly lield u�7 p.m.nn tLe l�st Tues�uy oj rhe month''ni nur head-
Customers ..........:................i:.....:�.....,.:...1�637 quarfers in Onkdti(e. . . ... .;,�,,...;:�;:;;�,.r,r..�-.,.;....c
Popula�ion Servod ..............�.. .......... ...4,41 I ' ''
,Miles of Main............. .............................16 � Stnc�l�i��w;r9CtlFtt�is:iL ysv:Ys�tT�d:.L�,Sz�iit.3;tis'�xz..»........._,.,......:_:7�,��6P�.-.f .
.. ...
� �re Hydrams� �� � '
......:...................................21g " z Suffolk.County �s Proud to tie;a� �
Water Used(Bitlion Galtons) ..............................240 i' c o . ;c
AverageAnnualBill(IDi,000guilons).................:.....553 � ���� ` Groundwater Guardian� r
Wmer Biiled(Hiilion Galtons :" � '
)..............................219 .. . % {�---V. .: . . . y . k��l
PercenrogeL.ost ' ,,..,,,.,yr�,' � � �rER � Commun�t s
................................ �� a:-�r_r:st�.�;:�:,rtres:r:;:s���xa-..:t�:nr�•.�;�����o-.,:..^*.v-e�:,+7==rs�:-�;'t�+�'�;x��r.a�
�,
. .�.� .
.. .. ,. ,�._._ . . .. . . . . . .
' 2002 AnnuaCVlfater Quality Statement -. Suffoik CountX Water Authority {
�
: . ... :... . ' .. .,... ... . . (For..CalendarYear20D1) . . . . • 4
� � Dlstributlon Aree RSWD � : Dtetdbutbn Area SBWD Diatribulbn Aree FHWD DlsMbulbn Area CHWD
qanps ol H'oduqs °�
Lw Hiph M'B. No.d�.. �dp� �'9, Nnd law a Wph MR NoW Low t�6ph� ..h+C Nnd
VCMi� Vuiue Value �Tes4;'� � VeMx Va�w Vahw Tub VeY» VMx Yake Tmb VaY» VaMro �4lus Tmb
Redio�ctivlty . � NO N� NO 7 ND 28.5 '4.38 20 NA NA NA 0
' Gross Alpha activNy pCN ........ ND �ND NO 1 � . N� ND NO 1 NO ND ND 2 NA NA Nq 0
Gross Bnia aclivity pCN .,.:.i.... ND ND ND 1� ' . � NA NA 0 NA NA NA 2 NA Nk NA 0
BlsmutM21/pCN.............. NA NA NA 0 Np NA NA 0 NA NA NA' 0 NA NA� NA D
� , Ces'nun-137pG11''.•.u'.:...�....1 NA NA NA �0 NA NA NA 0 NA NA NA 0 NA NA � NA 0
fledonpGfl...........'........ NA NA NA 0 . ,. ,
. ���:Inorgenlp . . ..
.�,q��pNty,�pq��............. 34.D 36.0 35.0 2 �.4 60.2 <5.3 2 93.4 34.4 33.9 2 52.D 68.0 58.6 7
�Aluminum m ND 0.02 ND 2 � 0.02 0.06 0.04�. 2 0.48 0.62 OSS 2 NA NA� NA 0
� � """""""" ND N� , NO� 2 ND ND N� 2 ND ND NO 3
qm�a;��,,,,....•..... ND ND ND 2 N� ND ND 2• ND Nb NO 2' ND 11.0 6.7 3
�ArseMc ugll. ................. ND ND NO 2
• �AsheetoSMFL..�...�............ ND ND ND t ND ND ND 1 ND 28.5 4.30 , 20 NA NA NA 0
���Berfum myl ............:.:... N� NU ND 2 N� ND ND 2 ND NO ND, 2 ND 0:10 ND 3
� :go�mgq ................... ND ND ND 2 ND ND ND 2 NO ND ND 2 NA NA NA 0
�Bromide myi ................. ND ND ND 2 . ND ND .ND 2 ND ND ND 2 NA NA NA 0
CA2.calaleted my1............ 3.3 3.5 3.0 2 7.B 3.7 2.B 2 8.7 8.1 8.1 1 NA NA NA 0
-Caidunmg9..................' 6.9 to.3 B.s 2 toA 242 i7.1 2 0.2 02 02 2• 16A 21.o te.a 5
�Chlorfde mg9 ................. 7.3 7.7 7.5 2 7.6 21.8 i4J 2 4.8 4.B 4.8 2 10.0 110.0 80.2 24
'��-Cobe1t-58ug�1....�............. NO ND ND 2 . ND NU ND 2 ND ND ND 2 NA NA NA 0
�Cdor uniffi ................... ND ND ND ,2 ND ND ND 2 19 27 23 2 ND ND ND 3
�.Coppar mgA .................. NO ND ND 2 -i:D- 0:03 .ND 2 . 0.04 0.05 O.Q4 2 NA NA NA 0
� ���,DlssolvadSolids.toWmg�l;...... 52 55 54 2 57 12H 90 `2 52 52 52 1 NA NA NA 0
�-Fluork3emg�i�.................. NO ND ND 2 � ND ND ND 2 NO ND ND, 2 ND ND ND 3
�:Herdnees,twel mpA ............ 320 34.6 33.3 2 29.4 76.4 529 2 ND 2.6 1.3 2 NA NA NA 0
�Ironug�l ..................:.. ND ND ND 2 ND 33 ND 2 � 241 242 242 2 1700 5500 3600 2
-�Lendugll .................... ND ND NU 2 1•< 1S 1.5 2 ND N� ND 2 ND ND ND 3
-�Ulhlum ugll................... NO L4 i.t 2 ND ND ND 2 6.7 B.B 6.7 2 ' NA NA NA 0 �
��.MuB���mF� '.. 220 270 2.45 2 1.42 4.46 2.84 2 0.11 0.13 0.12 2 NA NA NA 0 �.
. ND ND ND 2 ND N� ND 2 610 1100 860 2
-Merga�eeo uyi'..'....'������ . ND N� ND 2 ' � ND 0.5 ND 2� NO NO � N� Z NA Nh NA 0
����N����"""""""""' 1.03 4.02 2S3 2 ND ND ND 2 N� ND ND 3
<.,NWete�mpll................... ND NU ND 2 '
��ps�pg��pq,,,,,,,:..:. NO ND ND 2 . ND ND ND 2 ND ND ND 2 NA NA NA 0
"" � ND ND ND 2 0.42 093 0.8T 2 N� 0.40 O.ld 7
' phpyphjte,pryn myfi........... 0.71 020 0.78 Z � ND NO ND 2 0.8B 1.85 1.32 2 NA NA NA 0
� Pnos�ham:mrm npn o.�z oza o.ie 2 . .
...........
' .PH�ryy ...................... 7.3 7.3 7.3 2 ' 75 7.5 7.5 2 6.9 6.8 B.B 2 BS 6.7�� 6.6
�pH,fieW uMb.:.......:...... NA NA NA. 0 ••:•. ` NA NA NA 0 NA NA NA 0 • 72 7.8 7.3 '7
:rPoteselunimqA:.......:.i...�..O.St O.SB D.55 2 ; �.43 0.88 0.88 2 3.71 3.7H 3.75 2 NA NA NA' 0
�.��Sllkonmp9........a...t:..... 7.1 8.3 7.7 2 5.8 8.0 6.9 2 5.0 62 5:1 2 NA NA NA 0
Sapum mg�l.................. 52 6.4 5.8 2 5.7 t32 9S 2 18.9 179 17.0 2 38.0 48.0 40.3 3
.��SpedflC CotMuctwice tnY�d6rt.'i'.. f02 iO3 104 '.2 � BS 230 163 2 82 BO . 88� 2 340 480 �13 7
�.g��U�.gg'myrM;,,,,,,,,,,,, O.IXi 0.63 0.03 2 ND ND ND 2 NO ND .ND 2 NA NA NA 0
� � ..:9uHnlampfl:.................. 3.3 65 �5.8 -:2 �, 2.4 BS 5.9 2 4.7 5.1 4.8 2 t3.0 18.0 75S 2
- TempereNro,BaW'C ..........:NA NA NA 0 � : NA NA NA 0 NA NA NA� 0 7 1B 13 7
.7��ro�u` ...: � ' ' NO -� ND" ND 2 ' ND N� ND 2 25.�: 30J .28.0' 2 _ NA NA � � NA 0
' :!TUryydy �uNts ............ 0.17 0.38...0.28 , 2 . 0.32 0.33 0.33 2 29° ' '3.7 . r.3.0 2 � NA NA NA 0
� ''� ND ND ND 2 . . � ND� ND,. .2 , 0.02.. 0.03 0.03 3
Zlncmg/I........�............. ND ND�. Np. , 2 ..,' � � ��ND: . '
�SynlheUc Orgu�k Compo.wMr tr�dudin9 WttiekM�and . . . �
Her6leWea(mry Indude iLti eolkctW oJrt lot,2 yem). N� ND ND 2" ND NO ND 0 NA NA NA 0
q�achbr ugll......,.;......... ND NG" ND � . NO ND � ND 2 � NO ND 'ND 2 NA NA NA 0
�AWitatb SWlorro teyl:..'.:...:'... ND ND''�_ND ' 2 ND ND NO 2 ND ND ND 2 . NA NA NA 0
� Altl'icarbSWfoaldeugA........... ND ND ���N�•. .'2, .�:•
Atrezine ugll......:..:........ ND NO ND 2 ' '• ND ND ND 2. NO . ND ND 0 ND ND ND 7
Carbofutan ug�l................ ND ND ND .2 � ND ND ND 2 ND ND N� 2 NA NA .NA 0
12 Dfbromometliana(EDB)nyl... ND ND� ND, 2 . ND ND ND ,2 . ND,� ND ., NO.,-, 2 . NA .NA NA 0
p�nosnb ugll.................. ND. .ND ,ND 2 ND NO �ND 2 ND'•" ND�%� ND�%� �0 - NA ���NA NA D
� ' ND ND N� 2 ND ND ND 0 NA NA NA 0
Melalaxyl ugA.............. .. ND� NQ N.d' Z ND ND. ND 2 N� ND . ND D NA NA NA D �
MetdachlorugA .............:. ND�� ND '�ND�' 2 ND ND ND 2 � ND ND NO 0 ND ND ,,, Nb t
�5(mazine ugll ................. ND ND �ND' Z � ND ND NO 2 � N� ND ND 0 NA NA •NA 0
� TetractYorpteiepy�a6cpdd(T(�A)uqt ND' ND ND 2 . . •
' Vo�Ml�e Org�nb Campounds � ND ND ND 2 ND ND ND 2 NA NA NA 0
gromod)piiptqnothane�g�1,,,.... ND ND ND 2 NO ND ND 2 � ND ND ND ' 2 , � Np N!f � NA 0
Bromobrm ugA�................ NO 72 0.7 Z ND NO NO 2 ND ND ND 2 ND ND ND 3
� CerbonTeVacfilwWeug�l . . NU NU ND 2 NO ND ND 2 ND ND NO 2 NA NA NA 0
ChlorodibromaneGiena uyl... '. ND��•, 0:5,' ND 2� NO ND ND 2 ND ND ND 2 NA NA NA 0
•�•e.
_ Chlorobrm upll.......,......:: 0.6 0.7' 0.7 : 2�.
� Cls.t,p.pkN{p�pppie�eupll....... ND ND ND 2 ND ND ND 2 ND ND' ND 2. ND ND ND 3
� p�dYorodilluoiqnepmne udl...... ND ND ND� 2 ND NU ND 2 ND ND ND 2 ND ND ND 3
� NO ND ND 2 .ND. ND ND,.' 2 � ND NO ND 3
1,1-0kMomelt�aneupll.......... NO ND N� 2 ND ND ND 2 ND ND NO 2 ND ND ND 3
1.2-DkMoroetltanouyl.......... ND ND, ND 2 •
���.p�q��p�pp�Jy�p�,,........ ND ND ND 2 ND ND N� 2 NC1 ND ND 2 ND ND ND 3
� ND ND NU 2 ND ND ND 2 ND ND ND 3
. 12.bich�pppmpar�s ugli,........ ND ND' N� 2 ND ND ND 2 ND ND ND 2 ND ND ND 3
Matfryl.7eA.&�y4Etlfar(MTBE�uqi... NO ND ND Z ND NO ND 2 ND ND' ND 2 ND ND ND 3
TetracMoroeq��e uyl.....:..... ND ND ND 2 ND ND ND 2 NO ND ND 2 ND ND ND 3
Trare•12dchb�oetltotro tgA ..... ND ND NO 2
1,1,1=1'rkhbroetliatw upll ........ NO ND �ND 2 ND ND ND 2 ND ND ND 2 ND ND ND 3
7�iqdorpe�hgnetpf�............. ND ND ND.. 2 N� ND ND 2 Np ND ND 2 ND ND ND .3
7rldYaoM�adneCmne(kemlt)tip1. ND ND ND 2 ND ND ND 2 . ND N6 ND� 2 ND ND ND 3
7.2.3-Trkhloroprtipsrw ugll ....... ND NC/ ND 2 ND ND ND 2 ND ND ND 2 ND ND ND 3
PQt10 ND ND N� 2 ND ND ND 2 NA NA NA 0
1,12•TrichiorotrilWarontlwno upll .. ND ND ND 2 ND NO ND 2 � ND ND ND 2 ND ND ND 3
p,m-Xyleno ug�l................ ND ND NO 2
Di�lnfection By-Producu NO ND ND 2 ND 12 0.6 2 NA NA NA 0
� BmnwchbtoaceUcAdduB�l ...... ND NO ND Z N� ND NO 2 ND ND ND 2 NA NA NA 0
Bromodith�oroacelk Add ug�l.. . ND ND - ND Z ND N� ND 2 ND ND ND 2 NA NA NA 0 �
� . Chiora116romoaceUc Add upA..:.. ND � NO. ND 2 N� 0�3 ND 2 NO 3.3 0.7 2 NA NA NA 0
HaioaeoHe Acids tola�(Sj�Ug/1 ..... ND OA� ND 2 � �
7rihalomelhanes,Wtal ugll.....;... ND 1,2, 0.5 2 NO NO ND 2 ND ND NO 2 NA NA NA 0
Suffalk Courrty 11'ater Aictliority - Pure, Safe & Co�:staiitly Tested
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Existi.ng Land Use Inventory
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Prepared by
Suffoik County Department of Planning
H. Lee Dennison Building - 4th Floor
100 Veterans Memorial Highway
P.O. Box 61 QO
Hauppauge, New York 11788-0099
July 20q0
1999 EXISTING LAND �.15E INVENTCDI2Y - EASTEY2N SIJF�OLK C�►iJN'�'X
Stepr vp-1�1. 7�nes
� Director
Environmental Analysis & Research Divisions
DeWitt Davies �
Lauretta Fischer
Peter Larnbert �
Ron Verbarg
Cartograpnic& GIS Divisian
James Daly
. Tom Frisenda �
Vinnie LeoGrande
Carl Lind
Suffolk County Water Authority
Anthony Graves
July 2000
1999 Existrng Land Use Inventory-Eastern Sicffolk County
. TASLE OF CONTENTS
1NTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Previous Land Use Studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Study Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
METHODOLOGY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Data:Managernentand Scale . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
<I:arid llse Classification System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Land Useinventory Process . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Land:Use Classification Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Ex.isting Laixci-Use Niap Accur�cy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...._. .�_._._.-. . 10
� Time Frarne . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
, .
RESULTS OF THE LAND USE 1NVENTORY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
REEERENCES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Preparcd by SuRutk Counry Department oCPlenning i July 2000
1999 Existing Land Use Inventary-Eastern Suffolk County
L1ST OF TABLES AND MA1'S
TASLES
Table 1. Land Use Classification System for Suffolk County . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Table 2. Total llpland_P__crPage and Number of Parcels in Towns of Eastern Suffol tLCQunty- 1999 . . 11
Table 3. Land Use Acreage by Town for Eastern Suffolk County- 1999 . . . . . . . . . . . . . . . . . . . . . . . 11
MAPS
The G1S maps that accompany this report are identified below.
B� Existing Land Use Map Series- 1"=2,000'
Town of Riverhead
Town cf-�outh�old �
Town of Shelter lsland
Town of Southampton
Town of East Hampton
Prcpared by Suffulk Cuunry Deryaronont of Planning 11 July 2000
1999 Existin�Lund Use Inventory-Eastern Su ffalk County
INTRODUCTION
Previous Land Use Studies
Existing land use maps and tabulations of land use acreage data on a town-wida basis for the five
towns of eastern Suffolk County(Riverhead, Southold, Shelter lsland, Southampton and East Hampton)
� are available that reflect conditions in 1962 (SufFolk County Dept. of P�anning l 962), 1966(Nassau-
Suffollc-�Z�gi�nal Plaru�ing Board 1968�_?�d 1981 (Long Island Regional Plannirg�.oard 1982).T��s�
studies, conducted on a County-wide basis, are useful in that they provide a general picture of the
location and interrelationships of major land use types at different times in the past. However,each of
these studies differs with respect to the methodology employed to classify categories of land use,the
scale ofthe base maps used,the level of effort and techniques employed in verifying land use, the extent
to which mapped land uses have been generalized, and how acreage figures were generated. Therefore,
comparison of the results of these inventories to detertnine accurate trends is invalid.
The need-for up-to-date, accurate land use data collected at a large scale was recognized in the •
Brown Tide Comprehensive Assessment and Management Program(BTCAMP)(Suffolk County Dept.
of Health Services 1992).The land use inventory conducted in 1988 for the Peconic River/Flanders Bay
watershed:was prepared at tax map scale and field verified. The Department of Health Services
Geographic information System(G1S)was employed to plot the existing land use map for the study area
show:ing 13 categories of land use and to generate acreage figures.The map,however,reflected
°generalized land use patterns, since digitizec�-ta�c�nap:co�erages showing-pareel boundaries were not
available at that ti.me.The recomrrendation u�-as=made iri 3TCAMP to cona��ctan in-depth an�lysi�of
existing land use,population and land available for development for the entire watershed of the Peconic
j Estuary System using G1S technology to plot maps and generate acreage data at tax map scale.The
establishment of the Peconic Estuary Program(PEP)provided the vehicle and focus for implementing
this recommendation.
As a xesult of the work perforrned under the PEP,the Suffolk County I�epariment of P'lanning
completed a land use inventory and analysis for the watershed of the Estuary that included 52%of the
land area of the five east end towns (all of the Town of Shelter lsland,67% of the Town of Southold,
66%of the Town of East Hampton, 51%of the Town of Riverhead, and 36%of the Town of
Southampton). The methodology employed and the G1S data and rnap products produced are described in
the report Peconic Estuary Program Existing Land Use Inventory(1997). The decision was later made
by tl�e Suffolk County Depariment of Planning to assign staff on an as available basis to complete the
land use inventory and analysis in a similar fashion for the entire land area within the jurisdiction of the
five east end towns.
Study Objectives
The objectives ofthis inventory are as follows:
■ Establish an accurate GIS existing land use data base at tax map scale (i.e., large scale) for
eastern Suffolk Cbunty. This data base should be prepared using a consistent approach so that the
results are comparable among the various municipal jurisdictions involved.
■ Prepare G1S existing land use maps in digital and print formats for each township.
■ Quantify existing land use acreage by general catego�y and inunicipal jurisdiction.
Prepxred by SufTutk Cuunry Dopartrnent of Pianning 1 July 2000
1999 Existin�Land Use Xnventory-Eastern Suffolk County
METHODOLUGY
Data Management and Scale
The Suffolk County Planning Department's G1S was employed to link land use data with parcels
shown on the Suffolk County Real Property Tax Map. [The Department's G1S consists of the following:
• �SR�'�Arcinfo 8.�,r"�-rcView 3.2 and Mapinfo 5_0_GIS software
• Dell Poweredge 6300 dual processor Windows NT server with 1 gigabyte of R.AM and 50
gigabytes of storage
• HP 1O55cm color inkjet plotter
-� Calcomp 9500 digitizer
• Four Windows'NT workstations,each with 128K R.AM and 8 gigabytes storage
Backup copies of all hard copy maps are archived in a plotter output format(GR.A and HPGL)on
a DLT tape format. To access digital maps on a PC running ArcView requires 64 megabytes of RAM
and 8 gigabytes of storage.] Land use data were collected at tax map scale. Although the scale of the
Suffolk CountyReal Property Taac Maps for the eastern towns vary,it is�pically.l" =300'. The existing
land use.display rnaps that accompany this report have been greatly reduced, i.e.,the scale of these maps
(1" =2000') is an order of magnitude srnaller than that of the tax maps. However,tax map parcel
boundaries were not altered in any way by GiS manipulation. Tbis preserved the sanctity of the parcel
line work and land use data base. The extEnt to whidi sr:�ali-�arcel�s-ca�=�e visually distinguished
depends or�the scale selected for G!S-map plotting:
Land Use ClassificaHon System .
Use of town tax assessor code data expedited the attaininent of land use inventory objectives.
These data sets were available in electronic format and keyed to Suffolk County tax map parcels. They
provided a starting point for the land use inventory work.
Tax assessor codes are assigried to parcels for the purpose of raising revenue through real
property taxation. There are literally scores of codes assigiied to ratable property. To facilitate
interpretation,the land use methodology grouped these codes under the following 13 general land use
categories that are commonly used for regional planning purposes: low density residential(s 1 d.u./acre),
medium density residential(>1 to<5 d.u./acre),high density residential (z 5 d.u./acre),commercial,
industrial,!institutional�;xecreation and open space, agriculture, vacant, transportation,utilities,waste
handling and management, and surface waters. Table 1 shows the general land use categories and the
property type classification and ownership codes assigned to each category. The groupings in this table
do not necessarily reflect the divisions in the assessor's manual(New York State Division of Equalization
and Assessment 1991). The 13 general land use categories are more suitable for characterizing
community layout and function, determining land available for development, estimating future
population levels and preparing master plans. Each and every parcel on the tax map was assigned to one
(and only one) of the general categories.
Prepared by SuRolk Counry DeErarhtxnt of Planning ' 2 July 2000 .
1999 Existi�ag Land Use Inventory-Eastern Suffolk County
Table 1. Land Use Classification System for Suffolk County (p.l of 5) �
Low Density Residential (s1 d.u./acre}* - High Density Residentiat(Z S d.u./acre)* -
attribute code 1 -symbol#83-yellow** attribute code 3-symbol#92- peru**
210 One Family Year-Round Residence 210 One Family Year-Round Residence
220 Two Family Year-Round Residence 220 Two Family Year-Round Residence
230 Three Family Year-Round Residence 230 Tlu-ee Family Year-Round Residence
240 Rural Residence-With Acreage- 260 Seasonal Residences
25� Estate 270 Mobile Home
260 Seasonal Residences 271 Multiple Mobile Homes
270 Mobile Home 280 Multiple Residences
312 Residential Land lncluding a Small 312 Residential Land lncluding a Small
lmprovement(not used for.living Improvement(not used for living
accommodations) accommodations)
316 Waterfront Vacant Land lncluding a 316 Waterfront Vacant Land lncluding a
Small Improvement(not used for Small Improvement(not used for
living:accommodations) living accommodations)
439 Srnall Parking Garage 410 Living Accommodations
483 Converted Residence 411 Aparhnents
416 Mobile'Home Parks(trailer
Medium:Density Resic�ential (>1 to<5 parks,trailer courts)
=d:u./.acre)*- 439 Small parning-��rage
attribute;cosie 2-syrr�bol#84-gold** 483 Converte�_Residence
210 One Family Year-Round Residence *Parcels designated as residential require lot
; 220 Two Family Year-Round Residence size calculation to determine residential density
230 Three Family Year-Round Residence classification(low,medium or high density).
26� Seasonal Residences **The symbol#and color assigned to each
270 Mobile Home land use category were selected from the shadeset
312 Residential Land lncluding a Small of Colornareaes in r�I.2C/iNFO Ver 7.04.
lmprovement(not used for living
accomrnodations)
3l6 Waterfront Vacant Land lncluding a
Small Improvement(not used for
living accommodations)
439 Small Parking Garage
483 Converted Residenee
PrepareJ bj•Sutibik County Department uf Plannin� 3 July 2000
1999 E��:• °p1g Land Use Invento►�-Eastern Suffolk County
Table � ,and Use Classifica= ��z System for Suffolk Couniy (p.2 of 5�
Commercial- 474 Billiards
attribute code symbol#110-redi`'k 480 Multiple Use of Multi purposes
414 Hotel 481 Downtown Row Type(with
. 415 Motel common wall)
417 Camps, � �ages, Bungalows 482 Downtown Row Type
41-$ Inns, Lc s,Boarding&Room��:.�. (detached)
Houses, irists Homes, Fratemit.; .�i 484 One Story Small Structure
Sorority �uses 485 One Story Small Structure-
420 Dining � ;blishments Multi-occupant
421 t:aurants 486 Minimart
422 �rs& Luncheonettes S l 0 Entertainment Assembly
423 ���k Bars,Drive-lns, Ic�� 511 Legitimate Theaters
�am Bars 512 Motion Picture Theaters
424 ;ht Clubs 513 Drive-in Theaters
425 r 514 Auditoriums,Exhibition&
426 ;t'Food Franchises Exhibition Halls
43� Motor`� icle Services 515 Radio,T.V. &Motion Piciure
431 �o Dealers- Sales& 5���. Studios
432 :-vice&Gas Stations 520 Sports Assembly
433 �to Body,Tire Shops,O�':�i 52 i Stadiums,Asenas,A_���or-��s,
=lated Auto Sales- Field-Housev
434 =tomatic Car Wash 522 Racetracks
435 rynual Car Wash 530 Amusement Facilities
436 if-Service Car Wash 53l Fairgraunds
437 ;rking Garage 532 Amusement Parks
438 �,rking Lot 533 Game Farnns
450 Retail � °�ices 534 Social Organizations
451 =gional Shopping Cente� 540 lndoor Sports Facilities
452 ;•ea of Neighborhood . 5�1 Bowling Centers
�opping Centers 542 lce or Roller Skating Rinks
453 :�rge Retail Outlets 543 YMCAs,YWCAs, etc.
454 �rge Retail Food Stores 544 Health Spas
455 : �alerships- Sales& Services 545 Indoor Swimming Pools
;ther than auto with large 546 Other indoor Sports
=ale operation) 550 Outdoor Sports Activities
460 Bank&: x�ce Buildings 554 Outdoor Swimxning Pools
461 Landard Bank/Single 555 Riding Stables
+ccupant 556 Ice or Roller Skating Rinks
462 <rive-in Branch Bank 557 Other Outdoor Sports
463 :ank Complex w 4ffice Bldg. 570 Marinas
464 sffice Building 583 Resort Complexes
465 �rofessional Building 691 Professional Associations
470 Miscel:.::�eous Services **The symbol# and color assigned to each
471 �uneral Homes land use category were selected from the shadeset
472 �3og Kennels, Veterinary of Colornames in ARC/INFO Ver 7.04.
'linics
473 �rreenhouses(retail sales)
� 4 July 2000
Prcpared by Sufi'oik County Dapar�� nt ofPlxnning �
1999 Existin�Land Use Lzventory-Eastern Su ffolk County
Table l. Land Use Classification System for Suffolk County (p.3 of 5}
lndustrial- �nstitutional-
attribute code 5-symbol#127-purple** attribute code 6-symbol#45-deep sky blue**
440 Storage, Warehouse&Distribution 610 Education
Facilities 6]1 Libraries
441 Gasoline, Fuel, Oil;Liquid 612 Schools
Petroleum Storage andl�r- 6l3 Coll�ges-&Universities
Distribution 6l4 Special Schools &Institutions
442 Bottled Gas,Natural Gas 615 Other Educational Facilities
Facilities 620 Religious
443 Grain&Feed Elevators, 630 Welfare
Mixers, Sales Outlets 631 Orphanages
444 Lumber Yards, Sawmills 632 Benevolent&Moral
445 Coal Yards,Bins Associations
446 Cold Storage Facilities 633 Homes for the Aged
-447 Trucking Terminals 640 Health ,
448 Piers, Wharves,Docks& 641 Hospitals
Related Facilities 642 All Other Health Facilities
449 Other Storage, Warehouse& 652 Office Building(Government)
Disiribution Facilities 653 Parking Lots(associated with
475 Junkyards government building)
?10 Manufaciur.ing c�-Processing 660 Protection
720 Mining and Quarrying 66l Army, Navy,Air Force,
721 Sand& Gravel Marine&Coast Guard
740 lndusirial Product Pipelines(non- installations,Radar,etc.
utility companies) 662 Police &Fire Protection,
741 Gas Electrical Signal Equipment&
742 Water 4ther Facilities for Fire,
743 Brine Police, Civil Defense, etc.
744 Petroleum Products 670 Correctional
749 Other 680 Cultural and Recreational
681 Cultural Facilities(museums,
art galleries)
693 lndian Reservations
694 Animal Welfare Shelters
**The symbol# and color assigned to each
land use category were selected from the shadeset
of Colornames i�l ARC/iNFO Ver'7.04.
Prcp:�rcd by Suffolk Counry Department ofPlanning 5 `�u'�y�000
1999 Existin�Land Use Inveritory-Eustern Suffolk Caunty
Table l. Land Use Classification System for Suffolk County (p.4 of 5)
Recreatian &Open Space- Agriculture -
attribute code 7-symbol#70- green** attribute cade 8- symbol#69-lawn green**
190 Fish, Game &Wildlife Preserves 105 Agricultural Vacant Land(Productive)
552 Public Golf Courses 110 Livestock&Products
553 Private Golf Country Clubs 111 Poultry&Poultry Products
�oC lmproved Beaches 1-12- Dairy Products
580 Camps, Carnping Facilities and 113 Cattle, Calves,Hogs
Resorts 114 Sheep &Wool
581 Camps 115 Honey &Beeswax
582 Camping Facilities 116 4ther Livestock: donkeys,
590 Parks goats
591 Playgrounds 117 Horse Farms
592 Athletic Fields 120 Field Crops
593 Picnic Grounds 129 Acquired Development Rights
682 `Nature Trails,Bike Paths,etc. 130 Truck Crops- Mucklands
695 Gemeteries 140 Truck Crops -Not Mucklands
920 Private Hunting&Fishing Glubs 150 Orchard Crops
930 State Owned Forest Land 151 Apples,Pears,Peaches,
932 State Owned Land Other Than Chemes, etc.
Forest Preserve ' 152 Vineyarc�s-
940 Reforesteri-i,and&Other Relatea 160 Other Fruits
Conservation Purposes . 170 Nursery&Greenhouse
941 State Owned Reforested Land I8� Specialty Fartns
942 County Owned Reforested 182 Pheasants
Land **The symbol#and color assigned to each
960 Public Parks land use category we�-e selected from the shadeset
961 State Owned Public Parks, of Coiornames in ARC/INk+LI Ve�r 7.04.
Recreation Areas, and Other
Multiple Uses
962 County Owned Public Parks
and Recreation Areas
963 City/Town/Village Public
Parks and Recreation Areas
970 Other Wild or Conservation Lands
971 Wetlands, Either Privately or
Governmentally Owned,
Subject to Specific
Restrictions as to Use
980 Taxable State�wned Conservation
Easements
990 Other Taxable State Land
Assessments
993 Transition Assessments for
Taxable State Owned Land
994 Transition Assessment for
Exempt State Uwned Land
6 July 2000
Preparcd by Suffolk Counry Dcpartment oP Planning .
1999 Exzstin,g Land Use Inventory-Eustern Suffolk County
Table 1. Land Use Classification System for Suffolk County (p.5 of 5}
Vacant- 818 Gas Transmission&
attribute code 9-symbol #26-white** Distribution
310 Residential � 820 Water
311 Residential Vacant Land 822 Water Supply
313 Waterfront Vacant Lots 830 Comrnunication
374 �urai Vacant Lots s 10 Acres 831 Telephone
320 Rural 832 Telegraph
32l Abandoned Agricultural Land 833 .R.adio
322 Residential Vac. Land>10 A. 834 TV other than Community
. 323 Other Rural Vacant Lands Antenna T.V.
330 Vacant Land Located in Commercial $35 Comrnunity Antenna T.V.
Areas 836 Telecommunications
� 340 Vacant Land Located in Industrial 847 Pipelines (used by utility companies)
Areas � 860 Special Franchise Property
350 Urban Renewal or Slum Clearance 861 Electric&Gas �
910 ` Private Wild &Forest Lands 862 Water
911 Forest Land 866 Telephone
912 Forest Land 867 Miscellaneous
868 Pipelines
Transportation- 869 Television
attribute code'10-syrnbol#33�="iight grey*�`
650 Govemment Waste Handling &Management-
` 651 Highway Garage attribute code 12-symbol#28-dlc.slate grey**
692 Roads, Streets;Highways & 850 Waste Disposal
Parkways,Express or Utherwise 851 Solid Wastes
including Adjoining Land 852 Landfills &Dumps
821 Flood Control 853 Sewage Treatment&Water �
840 Transportation Pollution Control
841 Motor Vehicle 854 Air Pollution Control
842 Ceiling Railroad
843 Nonceiling Railroad Surface Waters-
844 Air attribute code 13- symbol#52-pale
846 Bridges,Tunnels &Subways turquoise**
183 Aquatic: oysterlands
Utilities- ' 315 Underwater Vacant Land
attribute code 11 -symbol#31 - It. slate grey** 845 Water(canal)
810 Electric&Gas 972 Land llnder Water,Either Privately or
812 Electric Power Generation- Governmentally Owned
Coal Burning Plant **The symbol#and color assigned to each
813 Electric Power Generation- land use category were selected from the shadeset
Oil Burning Plant of Colornames in ARC/iNFO Ver 7.04.
814 Electric Power Generation-
Nuclear Plant
815 Electric Power Generation-
Gas Burning Plant
816 Gas Generation Plant
817 Electric Transmission&
Distribution
Prcpared by Suftolk County De�rartment uFPiannmg / July 2���
1999 Existing Land Use Inventory-Eastern Suffolk County
Land Use lnwentory Process
The follotiving is a brief listing of the steps in the process used for conducting the inventory of
� existing land use.
■ Using the GIS, combine tax map parcel line work with the three digit,tax assessor property code
data and prepare a coverage at tax map scale for each town showing ]3 general land use category
attributes based on grouped assessor code data and residential density crzteria.
■ Prepare large scale plots of all tax map sections located within each township. These plots show
the land use attribute code numbers for the 13 general land use categories listed in Table l, one
of which is assigned to each tax map parcel.
■ Verify parcel attribute codes via field inspection, aerial photo interpretation,use of Real Property
Tax Service Agency property data and owners list files, etc., and manually conect same where
necessary on the tax map section plots.
■ Correct the GIS data base.
■ Merge the tax map section sheets and prepare preliminary, color-coded GiS existing land use
maps for each township. lnspect and correct parcel line work and attribute codes,where needed.
m� Plot final,color-coded existing land use maps at desired scale.
■ Use the G1S to tabulate acreage figures by general land use category and municipal jurisdiction.
The steps in the process are conceptually simple. However,the level of effort required to
prepare usable G1S coverages,verify and correct land use codes, and produce an accurate parcel-specific
land use data base was quite substantial given the geographic extent of the area,the rnagnitude and
complexity of the data.bases involved, and the need to conduct extensive field verification.
Land Use Ciassification Conventions
Experience gained with the initial phases of the land use inventory and field check process
resulted in the establishment of several conventions that were used to simplify and expedite the work,
and help assure that land use code attributes were being assigned in a consistent manner by the several
staff inembers involved. These conventions are summarized below.
■ When more than one use was found to occur on a single parcel,the primary use of that parcel
was determined and assigned to that parcel. Primary use is based on the relative intensity of the
use in comparison with that of the other use(s)in question,with consideration also given ta the
areal extent of the use on the parcel.Typical examples follow:
-A 100-acre parcel is used for both residential and agricultural purposes. Crops are
grown on about 80 acres, 15 acres are in woodlands, and a house is located on site. Even
though the parcel accommodates three uses (including vacant), it is assigned a
classification of agriculture, since most of the parcel is dedicated to this use.
-A two-story structure is located on a 10,000 sq. ft. lot in the retail portion of a central
business district.A hardware store occupies the first story of the building and the second
floor is used for an apartment. While used for both coinmercial and residential uses,this
Pre�rared by Suffolk Cuunty Department utPlanning o Ju�� �000
1999 Existin�Land Use Inventoty-Ecrstern Suffolk County
parcel is classified as commercial, given the relative intensity of the uses in question and
the prevailing nature of neighboring retail uses. '
-A country estate is located on an 18-acre parcel, some of which is wooded,with the
remainder used as pasture.This parcel is classified as low density residential, given tbe
fact that it falls within the density criteria of< 1 d.u./acre.
-A roadsight-of-way Y�r�el traverses a bay,but t�e improved-�ortion of the parcel does
not extend over the water. The entire parcel is classified as transportation.
■ Dedicated common areas on tax map parcels in condominium/townhouse projects were classified
as recreation and open space, since such areas are not available for development in the future.
Small,privately owned parcels that are the sites for residential structures in these projects were
classified as high density residential.
� Agricultural land that had reverted to old field habitat due to non-use was classified as vacant.
Actively cultivated lands and those recently left fallow were classified as agriculture.
�� When structures on improved parcels are unoccupied,the parcels are not classified as vacant.
They are classified according to the type of structure present, i.e.,commercial,industrial,
residential, etc.
�� Whethe:a-parcel is pubiicig o�caned-ar privately owned does not-r_ecessarily�etermine hc�a that
parcel is classified. For example,parcels classified as recreation and open space can be owned by
� property owners associations,private conservation groups, or private clubs, as well as public
entities. `
■ Privately owned, commercially oriented,intensive recreational activities,such as bowling alleys
. and sports complexes, are classified as commercial.
■ All publicly owned parks and conservation lands,whether actively or passively used, are
classified as recreation and open space.
■ Parcels owned by the Suffolk County Water Authoriiy were classified as utility,regardless of
whether the parcels were improved or not.
■ The existing zoning designation of a parcel is not a factor in how that parcel is classified as to
existing land use.
� The number of residential structures on a parcel, as opposed to the number of dwelling units, was
used in conjunction with parcel acreage to determine density, and hence,the ciassification of the
parcel as low,medium or high densiiy residential.
■ The context within which a parcel is located, i.e., the uses found on adjacent and nearby parcels,
can often help in making judgments in the field as to how to classify that parcel.
■ Parcels that are adjacent to commercial uses in business distiicts and are used as parking lots in
connection with these uses were classified as commercial. Parcels used for parking that are
directly related to a nearby transportation use, e.g., fei-ry or railroad,were classified as
transportation.
Proparcd by Suf£uik County De�raHment uf Planning 9 July 2000
1999 Existing Land Use Lzventary-Eastern Suffolk County
The tax nnap base shows property boundaries, and not geographical features,the extent of various
"surface covers" or datums. Hence,the boundary of a parcel located on the shoreline may,or may not,
coincide with the location of the land/sea interface.The apparent shoreline on the existing land use maps,
i.e.,the boundary between parcels classified as surface waters and adjacent parcels classified as one of
the 12 upland land use categories,sbould not be interpreted as the water's edge or mean sea level,etc.
Overlay of the tax map base on appropriate maps, such as USGS topographic maps, can indicate the
extent to which the shorelines replicate each other.
A lake or pond located within a larger tax map parcel will L�ot be shown on the existing land use
map as surface waters. lf the lake/pond is a separate parcel, i.e.,the shoreline is a property boundary,
then it will be classified and shown as surface waters on the map.
Existing Land Use Map Accuracy
The Existing Land Use rnaps series shows thousands of parcels,each assigned to a land use
category.In evaluating the accuracy of these maps, one has to consider two types of potential error.T'he
first type is judgment error,resulting in the assignment of the wrong classification category to a
particular.parcel. The second type is attribute error,where the wrong classification is assigned to a parcel
in the G1S data base, and this error is not detected in review of preliminary maps. Given the extensive
level of effort devoted to the land use inventory,the staff is confident that the incidence of both types of
error is very low. Users of the Existing Land Use map series and the acreage tabulations by land use
-category that are derived-from tlie GiS.data�base should be aware of the methodolo$y employed,so that
proper interpretations can be ma�G.—
Further explanation may help to reduce confusion with respect to the differences between
preliminary maps showing uses determined by assessor codes and existing land use maps prepared by
using the land use rnethodology described herein. Each municipality can assign assessor codes to parcels
in different ways according to local practice. ln almosf all towns,it is evident that publicly owned parcels
and other nan-ratables often are not assigned any category. ln addition,the assessor code data sets vary
greatly by town in the extent and frequency of update.The use of this methodology and field verification
assured comparability of inventory results across municipal boundaries and their accuracy and suitability
for planning purposes.
Another comment is warranted with respect to the relative accuracy of the acreage numbers in
this report.The G1S calculates parcel area from digitized tax maps,which depict approximate parcel
baundary locations. Original parcel surveys and/or deeds must be used to determine actual parcel
location and acreage for purposes other than general land use inventory that require very accurate parcel
data.
Time Frame
The stafF conducted the field verification of land use for the six towns in the PEP land use study
area in a sequential fashion over an 18 month period beginning in 1994. On an as available basis,the
staff conducted the land use inventory and analysis for that portion of eastern Suffolk not within the
boundaries of the PEP from 1996 to 1999. During the process of G1S file co�rection and map preparation,
changes in the use of major parcels within the PEP were noted after completion of field work. For all
intents and purposes,the pattern of land uses as portrayed on the Existing Land Use map for each of the
five east end towns should be considered as representative of 1999 conditions. This"snapshot"view of
land use is, of course, static and will not reflect those incremental changes that have occurred as a result
of more recent development activities.
Prepued by Suffulk Cuunry Da�rertmrnt uf Ptanning
10 July 2000
1999 Existing Land Use Inventory-Eastern Suffolk County
RESULTS �F THE LAND USE 1NVENTURY
The results of the existing land use inventory are portrayed in map and numerical formats. The
full color, G1S computer generated maps portray the distribution of 13 land use categories as of 1999
within each of the five east end towns.The G1S was utilized to generate land use acreage data from the
tax map parceUland use data base.These data are grouped by land use category and local govemment
jurisdiction.
The land area of the five east end towns encompasses approximately 221,000 acres. There are
over 111,000 real property tax map parcels within this siudy area.The total upland acreage and number
of real property tax map parcels by town are shown in Table 2.The town totals shown in both Table 2
and Table 3 include incorporated villages within the geographic boundaries of each town.
Table 2. T.otal Upland Acreage and Number of Parcels in:Towns.of.Eastern Snffolk.Connty.-.1999...:.:...:.:.:.:..:::.
;::<::<:::;»:;:>:«::::>::::::>::»>::::<::;::>::;:::;:.>:;::.;:. »>::»>::>::>:<::�: . .
>::>::>:€:�'.I��I��:::::;:<;:::::>��:`:>::»:;::::s>::>::;::»`::»`;�::::>::::::::::::::::::::::::::>::::>:::::::>::»`<:::::;':::<::`:;><:::>:::<:::»::::;;::::>:::
::::::::)�a��::;:;'���ti'.`�`::;�#33:::�::::::::::;s'.:i::i:;�'i5:?:;.;:,2:::::>::>:;:
;;:<.:::�>:::>arii f r�..
<::<:>;�s:an�:>:So
. . .. ... ... ...
:;::»>:«:::>::»::;;;:;::::;s::<:>::::<:>::::>:::;::;;::>:::«:>�:>:::»::::::::>::>::::»:<:::»;:::�>:::�::::>::::::>:<:>:<:>:;:::;::>::::;::;:»::::�»::::»<:>:<:>;::>::>::>:>;>
::::::::>::>::>�:::<;»::;.;;:>:.;:.::.::>:::,.:�>;:.;:.:.;;;:.;;;:<;.;;;>;:.:;.::�;;:.....:. ::.:::::::.:.:.�:..�:::
...
:::>::::«::::>::::>:::>::>::::;::>::::::::>::�::;:>::::>::::>::>::»:<::<:;<:::::::<:>:<:;:::::>:::�'�t�r:eait�::�:»;;:<::��ut:atci::i::>�::�:>;<><:s::::.[...1....................��........................................ ...��..............?�......
::::::::::::::::::::::::.::::.::::::::::::::::::::.::::::::::::.::::::�::.�:::h.:::::::::::::::.::.�::.::.::M�::....:......................................................p.................................4�..................�............
U Iand Acreage.Town-wide...............43,297.............34,767..............:..7,247::.::::::::..::::8$,963::::::.:..:..::::.:46,996::::229,270:.
.::::P..�::.�.�
:>:>��.�2�:>
:::::::>'�'::�1;:.�:::::»::�<1'1 �
:>::;:<:>:»::>::::»:::;::�;::::>�:>:;::>;::::>::>�>:::<::;;::>:;::>:::>:::::;;>:;:;:::;;:::>::>::<;;:;::::;:.;:;:�::::::<:;><:;::>::::>::>::><:<.::.:;;:.:::>>.�::>;>:>�;>::;::»:::>:::>�::;;�:::,:;,:::::;:<:>;<:::;<:<:>::::,:::.. �:::::::
::.::.... .::...:.:.:..: .:,:;.... .:.. . :::;:;:>::>::»::..<;...::::::>::::>:::>::::::>:::::::::<.::>:::.>;:::::»::>:::>;;:><:::;::�� ���::»>;>:><::;:>::»::>�7:'�28�::::>::::::`:>;:>::::>:.....� .. �:�..........
>:.. .::o�..f�. �. �:::<:.:vu:. �d :.;�.:.�.>�:::#..'�.1.,�kf'i:;i..:.:::::::::::;:�.##...�..."�..::.::::::::._::::..:,.��........::.:�.................�......:.::.:::::::.�::::::::::::::.,..:::::::::::::::::::::a.:::::::::;
:�+��.t�r...:::::::�:::�:.�t`�:::�n:�r:::�..:::::.:::.......:...:..::.:...................,�."�....................................................................
Table 3 is a.summary of the upland acreage by land use category for each of the five east end
towns. Approximately 57% of the east end acreage is in the following three land use categories:
recreation an�-apEn_spacP (24%); agricultur.e(1_-6%);_and vacant(17%). Near.ly three-fourths of the �
recreation and open space-acreage and the vacant property is situated on�e south fork, and almost three-
fourths of the agricultural acreage is located on the north fork. Residential development comprises 27%
of the east end acreage. Cominercial, industrial and institutional uses each account for 2%of the study
area acreage.Eight percent of the study area has been assigned to the transportation category,which
consists primarily of road and railroad right-of-ways.
Table 3. .Land.Use Acrea�e by Town for Eastern Suffolk County.-.1999.. .....:::..:::....:.,:....:::.,.,,,::::..,,..,,.,,,,.....,,,.,,,,,.,,,,,,,..
.:.�::::::.::::::::::::.........
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::::i'••'�?:i::i:i:::::::::'::i::::i:::::i,:<::i::'�ii:':�'�:::ii:�::::i::`::{:::::::<?''i::::::,::{::;i::;Y::i;,:;,;,;y:::<::::::i!".[Y�::::�i:::::::i,::������.:•:u:::::ii::i::i::i::i'::::�'::::i:::::i::::'•'::::t:::i':,L.:i,:`:'.�......'�,::Y+.:i:::<Y::::::
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:;::.P>:;;:;.;;>::<:.;
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.:::>,,:;;:���a��cc�::;::::><:::>:_<<;:<:;::;:::::::. .� ...
�::::::�:>>:<:::»::::::::::::::::<:::;:;::>.:>;;:<:>::>::::»:<:><::::�::>::>::>�:>;:>:_<:>::�:::>::<::>::::::::>::::;::::::;::::::>:��>s,°s:.;:::::»::><>::>;::::>:
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Low densi residential 2,094 5,566 1,810 15,194 7,953 32,617 15%
...........................:�3'.........�................................................:..:......:...:.::.:......�::::::::.�.�::::::::::::.:::::::::::::::,:::..�:::::.:::::::.::::::::::.�.:�::::<.�.�:.�:::::::.�:::.�:::;:.�.:<::<::;;,;:;:.;;:.
::>::::>:::>:<:�::>>::::::::>::::<:::>:::�>:;::::::::::::.>::::::>:::�::>::>:,_::::::;<::>�:�::>::::::>::>::::>;:>>>����:�:�::>:<:::>:>;::>::::>.::::::::::::;:>:<::;:>;::>::;:::<::<;:::<::::>>.:>::_:�<>;��»::>;::;;:::>:»;.;:;::::>::><�.:::>::><:::::<:�:;.;::;<;;>:;;:
>;:.;;:::<.;:;<.;:.>:::;:.;»:.:;::.>:;;:.:;;::.;;;:.;>;::.;:.;;;;:
<:�:;>��>::>:>..>:;::::�::>::>::;:>:::>;::;::�;::>;:::<:::<::>.:;.:: ::::...:..:................. ........... ...
:. .. .... ...... .:.: :. . :::::.�::::::.::..: ::.::.�:.::. :::,: .,;:.>::;.:;:.:;. ;.:>;:.:�;:.:>;�:.::::.:.��;.:::::::.»:;::::.;:.»:..�.::.:� �. .::.;:.;;:::..;.::::::::;:.;:.;:.;:.>:.:..�..,.
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.. ..;::«::>;>;:<:.;•.:::.::�>::;;;;;:. •::..< :::;:::.:;.;>;:, ..:.::.:;;;<::;;;:;>:::.:::.::...;•.;;:;:.;::.>::.:.;.:• ,>;::<:•��•. �..;:.::.:.>:;>;••:•.:. •:
.:. .. �. :. �...::.���kd�r���.:::::::::::.3..�.:�.�.:.�:::::4�:Q!4:::::::::::.���.�::::::::::.�::.::�:#�.Kg.'�.�:;::::::::::��7..�C.�..�::::::�:::.�:.::�'.:::::::::�:.�::�::
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Hi h density residential � 761 236 14 580 405 1 996 1%
. .�............ ....... ............................................................,...:::..:.:.....:...::::::::.�:.:::..:.:::::..:::::::::::::::.�:::::::::::::::::.�:.�:::::::�::::.�:.::::::.::::::::::::::::.
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::::::«::;;:;:�.>::;;;::::>::::::::::::::;::::><::>::::>:;::<:>�<>�:::<>::::;:::::::>::;::::>::::>::>::>:::<::;>::;.::<:;�>:::<:»::::;:::::>:::<::>::>;:><::<>:::s::>`;:»>:>�::>:::;:::::::>::::>::::>;<::<:.;<:`::��:�::::�:<>::::::>::>:s::>;:>,,:::°:;>::;;>:>::::::>::::>::.>.;:>..::.>::<.:<....;;.;:<>.:;�.::>::::;:;::>
<::::::::::>�>:.:><.:;.:.::...:.:....::.:::.::::.::::::::::::.�:::.�:..�::.�::::::::::�::::. .. .
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:..;;�.. :.:... . .:.. ::.><:;<>::>:<:»::>:::::<::<:>::>::>::>:::<z:>:z::<:>:<::;:>::::;::.::>::>::::::::.:::,:::::::.:�:.:.....:�:::::.::......::::::;::.::.::::.:.� ................ . . ............ ............�... .
:. .. . . . .. .:..:.............:.:..:....:.::.::.:::::::::::.::::.:�9�::::::::::::::���::::::.::::::..�:�6:.:::::.:::.:::::......7.8.,T.:..::.::::.:.�:��.�.::::.�::....4...,�.�::,�:.�::.::::::1�.;
.!C����.���:�:;:.;:.;;>:.::.>:.::.>:.;::.:;:.::<.;:.::::.::::::::::::::::::::::.�:::::::::::::::::::.�::::::::,:::.:::::::::::::::::..�:::::::.::::::::::::r:.::,.:.::.:....................................................................
Industrial 3,661 149 12 789 266 4 877 2%
......................................................................................................:.:.:.....::....:::.::::..:::.:::::..�::::::.:. .:,::::::::.:::::.,::::::.::::::.::::.::::.::::.:_:::.:.�:�:.:::.::::.:::::.�::::.:�:;;.�:.
:�;>:>:::::>:�:>:::::>:::>�:<:><.;>::<.<.;::>::::>::::::::::::::<:;::>::;::>::>::;<;:>:<::;:>::::>::::>::»::;::::<:>::»:<:::>;>;::<:::::>::>>:<::::::::�::::�����<:>�:>:�;<:;:<::<::>`::>:>�::;�:::>«:::>:::<:>::>:>::::::<::;:;:::.>:<:�<>��;�:>:::»�:>:>:>;::::::«:<:;>::;:�<:::>::::::::>:;;:>:::;::��`�:��:'<:::>::<:::::;»::�:�>°���::<::>:
:.::
:::.:�.. ....... ....:::::.:.;;:.;�;.;:.::.;;:.;:.>:.::.>;:.;;;;:;;:.::;:.::.;::.:....... .. :;.:;:.:;::. ::.::� :::..:.;:
: . ..... . . ..�:..:.....:............................................ .. ....:....::.:... :::::::.::::..:.:::.::...:::::.:::.: .:.::. �:::;.:�:::>:>:>:::;<:>�:. �>:>:::>:::: .::.:::.:::>:::;:>::»:<:::>:�.�:::
:.. . . .. .:.�::::::::::.:::::::::::::::.:::.�:.:�::<:.:;;:,:.;:;.:;:�:1:�;;:�:;;>:.�....�42:::::.::.::..1.2.�::.....:.:.:.:..:.2.��44..:.:::::.:::::,:��4.:;:.;�.;:::�.��2.I:<::::::<:::.;�:.�;.
:�.r����t�.�n�l..:::.:::..:.:::::::::::::::::::::::.:.:..:...........�.... ......:.::. ...::.:.:::::::..:..::,::.:::.::.::,..:::::...:�,:.,::::.::.:::::::.:,......:::........:.:::...,............:.:..:..............
:..�::::::::::::::::::.�:::::::.�:::::::::::.::::::::.�::::.::::::::.�:.:::.::::::.�:::::..::.,.:::.:...::�.::...::.:.......:.:............... ..............................................................,.......................
Recreation& open s�ace 8,510 4,105 2,E 17 ..;., :24,041... . 14,872,:.:.54,145.......24%
:.::.:;:.;:.>:.;:.;;:.;::<.:.::.:::.;:.>:..
—::>::�:::::::><::.;::>:;:>�::<:«::::;:»: . ,.: : .. :
:.:;.::.....:....: �: ::::..:::.::..::::::::::::::::::::::::.:::::::,::.. .., ... .:::::.:.:.::... ..::..::: .:: . .:::::::::.,.� :::
:: .a., .. ....... .::::::::::::::::::.::::::::::::::.�:::.::::::::::....: . ..::::.::.�. .:...:<.y.'.::::,>><:::::::::;:.�::«>;:z;:z:::::;<::;:>;::.,�.::�::;;s.>:::::::ss:::;;. :..:::.;;;.:..... .....::::::::.::.. . :.
:.:. .. . . . .. ::.::::::.�::::::::::::::::::::::::::::::.::::::.. .......::.�:::.:.� ...�.�.:..:...::�.�.�3.::::..�:...�;:::.� �,�.��:::::.::::::.�,�.t�,.X.�.::::::.�'��.��'-��..�...:.�::::::�.��`�.:
.� ����.�..::.:::::::::::::::::::::::::.::::::::::::::::::�.�.8�.:.�:::::.::.>..'�..:......:.:.:....:......,,....:.::::,::::.::::.:,.::.:::.,::::::::.:::::::y.::::::::::.::::::::::x::::::..�:::::::::::::::::::::.:
.:::::.�.::::::::::::...::::::::.................................................:.�...::...._....................... ........... ..... .
Vacant..............................................................4,1.39.........6,008.......��3�.1..:.:,::::.:::.:1.5,023:::.::::::10,899,.:�:::37,440.:.......1.7%0..
<;::;:::::»::;:::<:::::::::::>s:>:::::<z:`:>::::>:::>;>`:>«>::»>;::<'<:;:<:::::>:<�{:::>::><>::«:::�>;:;>:>::;:»>:<>;:::::::;:::::>�:�:::>:;:::»:<::<:;:::::>�>::;::::::s::�::::::>::,;;:.:;:;:;.:;:;:>::>:�::>:<>::<:>':�:>�:>�::>`?�'�'C`::::::::::;>::;::::;;:;>;::<»';;:::::;':>:<:>::::>::,::>:::;;:;'
:;::,i:::;'•>:::s:::::::::�•:
.. ... ....
i;:".:;:s::ir:s;:;:::;::..:.::.:.. .:::::.:�::._.�:::.:�:::::.�:::.:::::::::.:... ..:.. .. :.:,..:: .:,. .:�.>:::.:,. .,:.....:.........:..... :,:.::. .::::.::::::.:..:... ..�::.:.g. ... ...:::.:::::::::: .�..::
:::>:>:k::�^•.::'•::::>:.r.3::.;:,::c,�:.::::>:::::%:::i•�s. i:
::.::: . ... .: : :<:::::::::::::::�::>::::::::::»:><::::::>::::::::::::::::: : ::.:::;::::..:::.�.: ::.:::>::::::,:::�.. :.:::.:;.::.:::::::;;.:. .::.:::.<;: ... a
::...r �: ...r.t t� ;:.;....::,.::::::.::.:�:::::::::::::::.�:::����:...:.::.:2.4Z�.::.,.:.:::.:1.�.�.:::..::::..::.....9.3I.8::::.;:::::::::x.::.�:�.�:.::::::���.'��:.:::::::::::�:�0:.
:�»..�.�.:;:�:�?'::�:.;;:�::�::.:::�::.::;;:.:>::::::::.�::::::::::::::::::.:::.�:::s:::;:::.::..:.::::::::�.:::.:::::.::.:::::::::::.�::::::::::..::::,:.:.::,::.:.......:..................................................................
Utilities 157 241 3 493 243 1,137 1%
;:: �
;;;``:::':'a>�;:;:
..:.:.. :/>:
::•:>:.:::>:;.;;:.;:;;>;;::<.;:.;:.;:x;�::.;:;>:.>::<.;>;;:::.:::>;:.;;::•:>:::::::::.::::;:::::::::::.:�:. � . >;�::::;<::::>:<::z�>::::::>::s::r:::»«::>::;?:<;;:::<:: � .;;:<::��>:<::::::»i;»::::si:::::::::>:<:
;.;;;:::>:>:::::::;:::>��<::<:::>:;:>:::;:>�:>;�>:::;::<:::::;>::>::»::>::>:::>::;::>:�::::<::::�::>:<:;::.::;;::;,:::: :;;�:>;>:<�:::::;;�::::>::::......::.:::.:.:.:...
...:.._�4.::>;,:,:::..�.::::1:::::::::::::::::>:::<::::;:::>:�:.::<��::.�.::...
,,,.:;:::.::.<,.:.::.:..; ,:.::::>::>:::;»::;:::::;::;;>::>::>::>::»>:<:::»:;::;:::>::;;:�>
;:..: .; : �:..:. �:::;:;::>::»:;;»>::;::>:<:>:;:;:::::::«::::::>;:>:>:::::::...:>:.;.;;::;:.;::<:: ;..�:>::::»;:::::::: ....... .�1.7...............��..............0...a�:.
:� �� .� . �n ...............................................�.fi......_.....:::�:5:�::::::::�::�::�7;:::::>:;:;:>;::::>.>.:..:.::.. ......... ................................................................
;;:.>:.:�:;.;�;:;.:���::.�.�::.:::::::::::::::::::::::::.::::::::::::::::.::::::::::::.:.�:::::::::::.:�:.,:::.::::..::::::::::::::.:::::::::.::..:. ..:,..........:................................................................
TOTAL 43,297 34,767 7,247 88,963 46,996 221,270 100%
Prepared by Suffolk Cuunry Depatlmrnt of Planning 1 1 July 2000
' ' 'n Land Use Im�ento -Eastern Su olk Coun I�'�
19��Extstc ,� ,
REFERENCES
Long Island Regional Planning Board. 19&2. Land use-1981. Areawide 208 Waste Treatment
Management Program. Hauppauge,NY.
Nassau-Suffolk Regional Planning Board. 1968. Existing Land Use. Nassau-Suffolk Comprehensive
Plan Series. Hauppauge,NY.
New York State Division of Equalization and Assessment. 1991. Property Type Classification and
Ownership Codes. Bureau of Local Assessment Services. Albany,NY.
Suffolk County Dept. of Health Services. 1992. Brown Tide Comprehensive Assessment and
Management Program. 3 vols. Riverhead,NY.
Suffolk Courity Dept. of Planning. 1962. Existing Land llse. Hauppauge,NY.
Suffolk County Dept. of Planning. ]997. Peconic Estuary Program Existing Land Use lnventory.
Hauppauge,NY. (draft)
12 July 2000
Prepared by SuRoik County Departmom uf Ptanning
App.e�dix 6
Leggette, Brashears & Graham, Inc.
Master Plan for Providing a Public Water Supply
to the Town of Southold, New York
. • —
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a +
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A PUBg.IC W AT� SLTY'I'I.�,�t TO T�
TOVVN O� SO�Ta'FI�I�, P�l�V YO�
pr�par�d For
Suffollc County Water Authority
7uly 1992 '
LEGGETTE, BRASHEAItS & GRAI3A11r�, INC.
Professional Ground-Wat�r Consult�nts
72 Danbury Road .
. � Wilton, CT 06897
,
TA�LE O�' CON7['ENTS
Pa�e
SUMMARY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
POPULA'ITON AND WATER USE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
WATER-SUPPLY AVAII.ABILITY . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
�-Ioffman - Bulledn GW-45 . . : . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Crandall, USGS WSP-1619-GG . . . . . . . . . . . . . . . . . . . . . . . . . . �
Comprehensive Public Water Supply Study (CPWS-24) . . . . . , , , , _ , 9
North Fork Water Supply Plan - SCDHS . . . . . . . . . . . . . . . . . . . . 10
_LBG Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
WELL=FIELD SITE SELECTION CRITERIA . . . . . . . . . . . . . . . .� . . , . . 12
Populadon Centers . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . .12
S torage Tanks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
�
Fresh-Water Mound . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Sources of Known or Potential Contamination . . . . . . . . . . . . . . . . . 14
Competition With Irrigation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
PROPOSED WELL-FIELD LOCATIONS . . . . . . . . . . . . . . . . . . . . . . . . 17
SiteA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
SiteB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
SiteC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17
SiteD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
SiteE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
SiteF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Site-Specific Testing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Orient Area . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
LEGGETI'£,BRASHEARS � GRAHAM, INC.
TABLE OF CON'I"ENTS
(COY�17[7[NU�) �
Pa�e
GROUND-WATER QUALITl' . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
COT�tCLUSIONS AND RECOMMLNDATIONS . . . . . . . . . . . . . . . . . . . . 20
REFER�NCE.S . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
p,ppENDIX FIGURE 4-1 FROM THE NFWSP
PLATE PRELIMINARY WATER-SUPPLY PLAN
LEccE-rrE, Ba�►sxr.�s & Gx�»�a,Ir�c.
I�.ASTER PLAN FOR PROVIDING �
A P[JBI,IC WATER SUPPY.Y TO THE
TOWN OF SOYJTI30LD, NEW YORK
; SL�fM.i�ARY
The Upper Glacial aquifer in the Town of Southold contains a series of fresh-
water lenses separated by tidal creeks or inlets. Development of ground water for public
s�.ag�t:y�g�sr-�ases is feasibt�-in the-lens areas, but indivTdual well wi�tdrawal rates wii�be
smaller than in western and central Suffolk County to minimize the threat of salt-water
intrusion by lateral encroachment or vertical upconing. A widespread interstadial clay
offers greater protecti�on from upconing on the North Fork than exists in the Montauk
area. �
The lazgest present water use in the Town is for seasonal agricultural irrigation,
.a largely cansumptive water use, that is forecasted to decrease in future years. Public
water-supply usage will be mainly non-consumptive, as most of such usage is returned
to the ground by septic systems.
Six prospective-g�blic water supply well-field sit�s have been..:identified in the
western sector of the Town of Southold, with a preliminary yield potential of 3.2 mgd
(million gallons per day). Individual well yields are estimated to range from 200 to
625 gpm (gallons per minute). Each of the sites meets the Water Authority criterion for
tank overflow elevation at or nea� the well-field location. 1fie chos�n well sit�.s are
mosdy located on the southerly side of the fresh-water lenses, so as to minimize water
main distances to population centers which are mainly along the Peconic Bay coast.
Eventually, a transmission main could pravide a continuous interconnection from the
Riverhead system to the Greenport Water District, and perhaps eventually to Orient. A •
prospective well site of modest yield potential (110 gpm)has been identified in the Orient
area.
Grour�d-wat,�r qualaty on the I�T�sth Fosk has been adversely impa�terl by
agricultural chemicals. Although it is possible that concentrations of such chemic�ls of
any given well site may not exc,eed drinking water limits, the Water Authority should
plan on treatment for nitrate removal and for removal of pesticide, herbicide and
fungicide residues. Naturally-occurring iron and/or manganese concentrations may also
require water treatment.
LEGGETTE. BRASHEARS Rt GE2AHAM, INC.
. _2_ .
IN'I'YtODL�CTION
On M�-: ; 1992, the Southold Town Board adopted the following resolution:
W�iEREAS, Town Board is responsible for the health, safety and welfaze of its
citiaens;-;a�vv, �r�fore,_be i�_ .
RFSOLVF.D � the Town Board of the Town of Sout�►old hereby endorses a study of �
a pilot plan b�> � Suffolk County Water Authority to provide public water to the people
in the area frc he vicinity of the Riverhead Town boundary, South of the Long Island
, Rail Road, u�. �he vicinity of Bay Avenue in the Mattituck area, subject to the Town
Board review �nd approving the s�.�rvey before it is released; and
gE TT �g~' :�R, RFSOLVED chat the Town Boai'd endorses an initial study by the
Suffolk Coura. Vater Authority of water needs to serve Cutchogue and New Suffolk.
As a ��onsible provider of a safe and plentiful supply of water to over
one million p ale in Suffalk County, the Suffolk County Water Authority believes it is
��adent to ar-�_ :pate the neecis of the en�ia�.North Fork ��-i.ong Island so that, if the
n�d arises iR; `;� future, they are in a positioq to expand the initially envisioned pilot:
area system. s part of a coordinate�i effort to generate a Master Water Supply Plan for
the Town of .�: -�thold, the Authority requested that Leggette, Brashears & Graham, Inc.
(LBG), Prof� ���ona�l Ground=Water Consultants, prepaze a water availability study. No
specific atter�� -�� has been given in this study to the area served by the Greenport Water
D'istrict, bu� ��is district could eventually be integrated into a townwide distribution
system.
The e:�:;�nents of the study include determination of the safe yield of the aquifers
underlying tt'�,�h.sown, estimation of current usage, determination of the optimum locations
for water-st��:f�ly wells and storage facilities, and review of potential water quality in
future produ��on wells.
POPULATION AND W A'TER USE
popc;i.:�tion in the Town of Southold in 1990 v�+as listed by the U.S. Census Bureau
as 19,836 �R:�::sons. The LILCO estimate for January l, 1991 was 19,831. The U.S.
LEGCETTE. BRASHEARS �t GttAHAM. I�IC.
-3-
Census data break out as follows by geographic areas according to "Census Designated
' Places" (CDPs), which are not necessarily polidcal boundari�s.
S(3UTHOLD TOWN U.S. CENSUS ESTII�IATES
G�a�a a�at�ic ?_-a�!- - 4/1176 -411/�Q 4/1790
Laurel 598 962 1,094
Mattituck 3,039 3,923 3,902
Cutchogue - New Suffolk 2,718 2,78$ 3,001
Eeconic 835 1,056 1,100
Southold 3,749 4,770 5,192
Gteenport West 1,682 1,571 1,614
(unincorporated)
Greenport Village 2,4�1 2,2'73 2,070
(incorporated)
East Marion - Orient 1,240 1,511 1,534
r
�Fishers Island 462 318 329
Totais 16,804 19,1'T2 � 19,83�
For the area of the Town of Southold west of the service area of the Greenport Water
District, the first four lisdngs - La.urel to Peconic - show a 1990 population of 9,097,
about 46 percent of the Town populadon.
According to LILCO, the 1991 population estimate represents 8,229 households,
of which 3,774 are located in the four western CDPs; 46 percent.
The summer-season population is not so clearly known, but the North Fork Water
Supply Plan (NFWSP) provided estimates from the Suffolk County Planning Board of
a townwide surnrneP increase of 19,760 in 1980, slighdy more than double the yeaz-round
population. lfiese increases are dominated by se�ond home and summer guest
populations,.but also include mat�el and camping visitars.
LEccErr.c, B�as�Rs � G�ax�,Irrc
-4-
Per-capita water use in 1980 in the Greenport and Riverhead Districts'was listed
in the NFWSP as 110 and 120 gpd (gallons per day), respectively. With a year-round
population of 20,�0 in the Town of Southold, this translates to 2.2 to 2.4 mgd of
domestic water use. Present summer-season domestic water use would be expected to
be essentially double these values. Based on the watez-supply experience in the Montauk
area, a growth in summer-vacation home populations could lead to seasonal water use
approaching four times the year-round rates.
For the four western CDPs, the Greenport and Riverhead per-capita usage figures
correspond ta a demand of about half the townwide values. At present, these water
demands aze being met by individual domestic supply wells, with the exception of the
Captain I{idd Estases water system which is operated by the Suffolk County Water
Authority. �
1fie initial pilot-project plan announced by the Water Authority is to extend a
main frorci-tl:e I.ti��zhead system along.Peconic Bay Boulevard east to Bay Avenu�, with
the expectation of serving a substantial number of residertces and businesse�=:rorrE the
Long Island Railroad/Route 25 azea south to Pe�onic Bay. This azea involves
appmximately 800 prop�rty owners, and is known to have a history of private well
contamination with nitrates andlor pesticides, as well as high iron content. It is
anticipaced that new well sources would be developed wit}►in about three years and that
the irutial pilot project would be expanded to the north and east.
yVATER-SUPPLY AYAILABIYITY
The hydmgeotogic framework of the North Fork of Long Island has been studied
for the past 35 years by the United States Geological Survey and other concerned
agencies. The referencx list of this report illustrates the coverage of the various studies.
Fresh-water supply in the Town of Southold is derived from local ground waeer
in the Upper Glacial aquifer. The Magothy aquifer contains sale wat�r throughout the
North Fork. Available studies indicate that there is a surplus of shallow ground water
available for deveiopment, but that care must be ta.ken to avoid unnecessazy water-quality
problems related to agricultural land use and potential salt-water encroachment.
LEGGE't'TE. BRASHEA1tS c�t C�iRAHAM.INC.
-5-
- The most important recent finding concerning water availability is that there is
t an areally extensive clay layer, previously only inferred, extending from Riverhead at
least as faz east as Richmond Creek (i1FWSP, 1980, Bohn-Buxton et al., in press). This
interstadial clay is present at approximately 50 feet below sea level in the
LaureUMattituck area, sloping northerly and easterly to about 100 feet below sea level
in Shore AcreslWol�pit Lake and in Cutchogue. Tts fliickness varies from about 20 feet
in the west to as much as 90 feet in Cutchogue. Figure 4-1 from the NFWSP is
appended to this report, a longitudinal section from Riverhead to Orient which shows the
, relationship of this ciay to the fresh-water lenses. lfiere is also a lower interstadial clay
unit, but it is below the fresh-water/salt-water interface over much of the study area.
The presence of the upper clay unit limits the potentiai for upconing of salty water
:beneath production wells.
As with most coastal ground-water resources, the key availability parameters are
-aquifer transmissivity and individual-well y�ield potential, volume of (fresh) water in
-aqui-fer storage;_and recnarge r-ate�, �n-,};is peninsula, which-fun��ons hydrogeologically
like an elongated oceanic island, a series of fresh-water lenses float on a large bady of
i
underlying salt water, with lateral separation and salty zones between the lenses at the
major estuarine creeks. An overview of the more recent previous studies of the azea
summariaes th� available b�iy of knowledge on these hydmgeologic parameters. As
with most.hydrogeologic studies, the more recent regorts are in part derivative of earlier
studies.
Fioffman - Bulletin GW-45
Hoffman (1961) of the United States Geological Survey, examined the specific
capacity - the yield divided by the drawdown - for 77 wells throughout Southold, and
found eh� follo�vir�g:
LF:ccEr�, Be��sx�s & G�,�,Iivc.
_s_ � �
� Range in specific capacity Percent of wells '
. (gpm/ft'-h ��
40 or more 1`�
30 to 39 20
20 to 29 45 �
10 to 19 20 I'
Less than 10 1
1/ Gallons per minute ger foot of drawdown.
1fius, :there is a reasonable expectation that properly designed and constructed wells will
have specific.capacities greater than 20 gpm/ft, and probably more than 30 gpm/ft,
depending on local subsurface conditions.
From these data, Hoffman concluded that the trar►smissivity of the glacial deposits
-��g�-��values somewhat le�—�an 20D,0� g�- gr� fo�t to v�lues somewhat
greater": He further noted that the coefficient of permeability may range between 1,000
and S,tK10 gpd per square foot.
With reference to storage, I3offman utilized a specific yield of 0.17 and the
Ghyben-Herzberg principle to estimate the total fresh ground-water storag� on the
mainland part of th� Town of Southold as 83,000 million gallons in April 1950. This
may be broken out into three segments:
' � � MCs� . � � . .
West%
Mattituck Inlet to Hashamomuck
Inlet ��'� �
��.�ls
Chag�l Lane, Greenpoa� to
Causeway, East Marion . 6,100
��
Orient ���
� 'I'otai (roundet�. �3��'�
�,/ Million gallons.
LEGGEI'T1E, BRASHEARS s� GRAHAM,INC.
-�-
By far, the largest volume of fresh-water storage occurs in the west azea, near Mattituck,
Cutchogue, and the Village of Southold. It should be noeed that Hoffman did not
consider the storage in the part of the Town of Souchold west of Mattituck Creek. Of �
his grand total, only 2,OQ0 million gallons, or 2.4 percent, was storage above sea level,
essen[ially in direct proportion to the Ghyben-Herzberg ratio (40:1).
Hoffman estimated average annual recharge to these three areas as;
MG
West S,6�0
Central � 8f 0.
,East 1,100 � .
:Tota1 :(roundec� 10,600
� Thus, in contra.st to most of Long Island, the annual replenishment is a significant
percer age of the-�-..sh-water storage, arr-i::gortant �actor-in-w��;er��pply planning.
In this light, Hoffman also looked at the annual recharge during a 3-yeaz period
of minimum precipitation, in which only 30 percent of the precipitation became recharge.
. Annual recharge
Area . �
� �m�r: � MG� i�IGD/nui
West 29.2 5,750 0.54
Central 6.7 5�5;' 0.24�'
East 4.7 715 0.42
':Totals (Average) 4�.6� 7,050 (0.48)�
�/ Square miles.
2/ Esdmate refl�cts 2 mi2 area vvith surficial clay, assumed to have aero�recha�rage.
1fius, in an azea where fresh gmund-water storage is limited, Hoffman esdmates a
conservative drought recharge rate of about half the accepted average recharge rates for
Long Island.
I.Ec�r�, BAusx�aRs & G Iric.
-8- '
�,randall, USC;� WS�"-1619-GCF
Cranda�_ ;1963)questioned Hoffman's assumptions about evapatranspiration rates,
and calculate� zverage rechazge rates for four areas of the Southold peninsula (plus
two island-pen�:,sulas not considered here), with reductions in parts of the Greenport area
to allow for lc> �1 clayey sediments and paved areas. "The v�+est-�entral (B), central (C),
and eastern (��: � areas were essentially identical to Hoffman's, but a western area was
added to the �est of Mattituck Inlet and� extending about a mile into the Town of
Riverhead. � �� average recharge values for Area B were less than Hoffman estimated
for his West �wa to the east of Mattituck Inlet.
�� Annual recharge (MG)
A (West) ^+ 1,500
B (West-C'� V:�al) 5,300
C (�entr:. -0�0 '
.._., -
D (F.ast) 1,100 �
.,. . ,. �,750 � .
::;:�otal
Cr:, �all noted that recharge may range from 25 to 35 percent of the totat annual
precipitati-�: in very dry or very wet years, respectively.
CrG:� �all offered his own estimates for fresh-water storage based on a larger
specific ya�:�� of 0.22 and deductions for till and clay units. His values, which are
substanaai���':�r larger than Hoffman's, are:
LEGGEI'I'E.BRASHF�►RS & GRAHAM,INC.
-9-
, .P�r�a Fresh��ater storage (IdIG)
A {West) 4b,�
B (West-Central) 134,000
C (Central) 10,400
D (East) i0,400
Total 200,800
Nevertheless, Crandall's storage estimates indicate that the largest fresh-water storage in
the Town of Southold occun between Mattituck Inlet and Hashamomuck Inlet.
('nmr�rehen�ive �'ublie Water SuAaly Studv (CPWS-241
The Comprehensive Public Water Supply Study for Suffolk County (CPWS-24)
(1968)�by Holzmacher, McLendon &Murrell provided a fresh approach to ground-water
-supply availabila�y by progosing"Permnss?��=Sustained�-Yields" fo*��zfic azeas withi�-
the .Gounty. Permissive Sustained relds was defined as "the maacirnum rate at which
water can bc consumed perennially without bringing about some undesired result". In
effect, the estimates of Permissive Safe Yield began with area-specific rechazge rates,
made reduc�ons for near-coase areas aucside ehe main wate� budgee are�, and made
further reductions based an an "optimum" position of the salt-water interface, including
cansiderations of drought. 1fie CPWS-24 regort also defined "Average Net Yields",
which were based on average-yeaz recharge rates.
• . For Southold, the findings were: • �
LECG�.-rr�. B�wsa�e��.s � G Irv�.
-10-
Permi�sive PSY pec mi2 Av�rag�
Sustained of watear Ptet Yield
Yield budget area (A.N�
(��? �
(mg� (mgdlmi� (mgd�
VVest of Mattituck Creek 2 0.40 3.4
Mattituck Creek to Hashamomuck 5.5 0.35 10.4
Pond
Hashamomuck Pond to Orient Harbor 1 0.25 2.1
East of Orient Harbor 0.5 0.25 1.1
:3'otal 9 .. 17
N'orth ForDc� Water Supgl_v Plan - SCDHS
. 1fie Nortts Fork Watez Supply Plan (Z�1FyVSP) (1983), prepared by
EgM-rlortheast and Camp, Dresser & Mc�Cee fa��the Suffolk. Coe�ratw---�epartment of
Health Services'`(SCDHS), offers little new data related to basic aquifer parameters, but
much�useful;data on historical and projected water use• For ground-water availability,
this study reexamined and generally accepted the °pezn'►issive Sustained Yields" from th�
CPWS-24 report, but adjusted the water-budgee arcas slightly. Table 7-4 fror� the
NFWSP, a.part of which is reproduced below, is a useful summary of the available water
,budget, compared to the estimated consumptive wat�r use in 1980.
LEGGF.TTE,BItASHEARS t�Rt GRAMAM+�C-
-11-
' SUMMARX O� WATER BUDGET ANALYSIS
(Fro�a Table 9-4, NFiWS�
Zone Permissive su.stain� vield Present Potentially
co�su.mp- available for
. *=��e use future use
�(mgd) (mgdlsq.mile) (mgd) � (mgd)
1 - Riverhead 29.4 0.7 4.7 24.'7
2 - Riverhead & West 5.6 0.4 3.9 1."1
Southold
3 -'West Cenual 4.9�` 0.35 3.3 1.6
4 - Central � 0.91' 0.25 0.5 , 0.4
5 - F.ast 0.40!' 0.25 0.47 0�` .
1/ Since the underlying aquifers in these zones have insufficient storage, these values
are conservatively base� on drought conditions and woul�i b� largeF for a yeaz of
�=average precipitation.
.2/ "The-zem entry indicat�s that th� present consumptive use is approximately equal to
-the:permissive sustained yield in Zone 5 during drought conditions.
:LB Re�ports
LBG has prepazed several reports on the Southold area for the Water Authority
dealing with "Factors Affecting Water Supply Development" (1985) and site-specific
� reports (Mill Lane-1989, Oregon Road-1991, Laurel Lake-1992). For these reports, the
CPWS-24 "Permissive Sustainable Yields" have been adopted as the most conservative
values for. water-supply planning purposes, and site-specific data have been utilized for
well-field planning.
The"Factors" regoats de.�it with the historic fluctuations of the fresh gmund-wat�r
mound in the area between Mattituck Inlei and Richmond Cre�k, in effect the west-
cential, Area B, or Area 3 region of prcvious studies, and theoretical aspects of salt
LEGG�:. B�►SHEA�LS Fd GIRA�i.�,IMC
-1L- , ,
water upconing beneath a pumping well as relaied to yield and positioning of the well
screen, as well as general well-field spacing.
The three site-specific reports provided preliminary yield-potendal estimates
ranging frarn 175 gpm at Mill Lane, to 350 gpm at Oregon Road, to 625 gpm at Laarel .
Lake. In each case, consideration�was given to vertical ugconing and lateral encroach-
ment of salt water as the pc�.ential limiting parameters.
WELL-FIELD SITE SELECTION CRITER'.[A
It is evident that salt-water encroachment, vertically and/or horizontally, is the �
practical limiting factor for public supply well fields. In practice, it has been found that
lateral encroachment is the more limiting factor for well or well-field yield in Southold
when theoredcal perfonnance is evaluated. As was determined earlies on the South
Fork, this-means that the opumum locations for ground-water development are along the
cential spine` of the North Fork, where fr�sh gmund-watez �ounds or lenses-x:a:s
between':the major creeks/tidal inlets, roughly coincident with the Long Island Railmad�
track. This axea affords the greatest aquifer thiclrness and the greatest distances fram
salt water bodies. However, there are other factors which have to be considered in
Southolde
P�ulation Centers
The primary population centers aze located along the southern portion of the town
adjacent to Peconic Bay, and also along Mattitucl� Cre�k. It therefore becomes
inefficient to construct well fields in the interior b�cause of water-main length and
excessive pressure losses through the transmission pipes. The well-field site selection
proc�ss included placing wells ire reasonably close pmximity to population centets.
�ora�e Tanks
Another factor is storage tank placement� In order to be able co integrate the
Southold system with the Riverhead system, as we31 as other Authority systems, the tanlcs
must have an overflow elevation of 185 feet above sea level. The tallest tan�cs t�he
L�c�►-rE.BRasx�xs & G�.�►x,�.Iric.
• -13-
Authority conswcts are 150 feet, which means that they must be locatetl at 35 feet above
sea level. The 35-foot contour in the western parc of the Town of Southold, shown on
plate 1, is approximately coincident.with a water-table elevation of 4 to 5 feet above sea
level on the southerly side of the fresh-water mound. At this elevadon, the prospective
' well sites are sufficiently removed from salt-water badies to minimize lateral salt-water
intrusion potenti�l. All of the six well=field sites in western Southold could accommodate
a tank at elevation 35 feet above sea level onsite or in near proximity. A detailed review
of storage needs is beyond the scoge of this study but is a potentially important factor in
an area with fiigh seasonal weekend usage.
Fresh`-Water`Mound
1fie LBG report of Mazch 19�5 outlined the normal and extreme drought year
(1966) water-table mound centered on Cutchogue Station, between Mattituck Creek and
R.ichmond Cre�k. A number of prospective production well-field locations have been
considesed essen�ally between the normal +4- and +5-foot water-table �levation
; contours. .These general lorations have been chosen because they aze downgradient of
the �ground-water divide, sufficiendy distant from tidal water, have a relatively thick
fresh-water lens, are sufficiently separated to avoid undue mutual drawdown interference,
are reasonably closc: to population centers and Main Road (Rout� 25) ansl, in a
preliminary way, are in areas where property may be readily available to the Water �
Authority.
• Previous studies by LBG show that at water-table elevations of 4 feet above sea
• level, well yields as high as 700 gpm can be achieved without inducing upconing of salt
water (LBG, 1985). These calculations were completed without consideration of the
area]ly-extensive interstadial clay layer, which would be even more pmtectivc of high-
yield wells.
Based on the abode factors, su well-field loc�tions hav�besn selected, as shown
on�plate 1. 1fie anticipated long-term yields of the well fields, also shown on plate 1,
are based on a recharge rate of 0.5 mgd/mi�, and the indicated circles around each well
site symbolically represent the equivalent recharge area. The actual zone of capture for
I.EccErrE. B�astn�►�s & G�a,Irvc.
�1M'
each well field would have a parabolic shape centered on the wells and widening up to
and, in some cases, beyond the present ground-water divide. As any site is tested and
developed, site-specific zone-of-capture maleling should be used to define the actual zon�
of rechazge capture. The total selected well-field networic would have a combined
sustained capacity of 3.2 mgd, sufficient yield to supply a population of ,about
30,000 people. This is well in excess of the population projections for the entire Town
of Southold to the year 2020.
It is important to recognize that short-duration seasonal pumpage substantially
greater than the year-round rated capacities may be accommadated. The presenc� of
upper interstadial clay in western Southold implies that seasonal upconing of saline water
will be less of a limiting factor than on the South Fork.
.�,���Pres of`Known or Pot�ntial Gontamination •
The most recent inventory of land disturbances that may involve potential
hazardau� wasteJstora�e faciiities i�=-;he Coznell University CLE.�IZS study for th.e
SCDOHS, in:which a county-wide inventory of potential waste-disposal sites was made
by-detailed analysis of aerial phocographs for 1962, 19"7� and 1984. Such features as
dumps, landfills, pits, lagoons, barrels or drums, mined azeas, disturbed land and above-
ground tanks were identified, and changes associated with these sites over the photo
history were described. Where pertinent, CLEARS information for the vicinity of
� proposed well-field sites is discusseti below in the section on each proposed well-field
loc�tion, and the mapped sites are shown on plate 1.
�m�etition With Irri�atiQn
As can be seen in table 7-4 from the Nf�'WSP (page 11 of this report). agricultural
ia�i�adon is the Iargest consumer of watsr on the North Fork. Estimaus of the past
irrigation pumpage have been given in previous reports, vary considerably from wet to
dry year, and are considered unreliable by local agricultural experts.
LEGG�'T'Y'E, BELA.SHEARS � GRAHAM,INC.
-15-
A windshield survey of the North Fork was conducted in June 1992 for a first-
' hand understanding of the active farming and irrigation activities, especially in relation
to prospective public water supply well sites.
In the Town of Southold, there appears to be considerable agricultural diver�ity,
with the historic dominant potato acreage giving way to sod and wine grapes, and a large
-a�,:m4age sall-in vegetables and ber-rie�� Table 7-3 fram the NFl���', re�,��duced b�low,
gives estimates of crop acreage and annual water consumption in 1980 based on estimates
by the Suffolk County Cooperative Extension Service.
IRRIGATION REQLT]RlEMENTS FOR CRO�'S G�20WN
ON THE N4�RTH FORK`-�
(Fcom Table 7-3, NFMS� �
Crop type Acre.ag� � Irrigation requirementsa'
(gallons per acre�per year)
Potate�s 12,L� 125,Q�A
Mixed �egetables 4,0�' 205,000
Cabbage and Cauliflower 3,5� 205,000
Rye 2,000 -- .
Nursery stock 2,OQ0 165,000
Pastures 1,000 20,000
Sod 1,000 245,U00
Sweet corn 800 125,000
Fruit trees 600 ' 125,040 .
Grapes 350 40,OQ0
Greenhouses 25 815,000
TOTAL 27,275-" 140,000
(weighted average)
. �,/ Communication with D. Fricke et al. from Suffolk County Cooperative Extension
Service.
2/ Peppers, spinach, beans.
�/ All figures rounded. "
4/ Acreage was estimated.
LEcc�.'rrE. B�ust�aes & G�►xa�w. Irr�.
-16- •
By conuast, a 1991 estimate for all o� Long Island for 1991 from the Farm Bureau
shows only 7,500 acres in potatoes, 2,450 acres in cabbages and cauliflower, bue with
substantial increases in nursery stock, sad and grapes.
Irrigation practices vary widely by crop and individual preferences, but mainly
involve moveable sprinklers, with some trickle-irrigation in nursery stock areas. The
"rule of thumb"is tnat most crops need an inch of narsral or irrigation water per w�k
during their growth cycle. In a typical year, sod requires about double the water that
potatoes need because of the growth cycle, whereas wine grages are rarely irrigated
except in the initial season of planting until the deep roots are set. A representative of
the Soil Conservation Service offered his opinion that most crops. in the Town of
Southold aze under-irrigated because of the lack of sufficient equipment and labor, and
t}�at the grape crop could be improved by periodic irrigation.
In June 1992, a fairly sizeable acreage was in hay or lying fallow, with some
areas showing "old field progression" to woody plants- Numerous "for sale" signs were
evidenY--�on inactive and on soa�aie- active f,3r�s. Az-housing displaces fazms, th�
consumptive use of ground water will decrease. Whettaer homes are supplied by
individual wells or by public water supply, the major part of domestic water use will be
returned to the ground by septic systems. Most of the previous reports on the North
Fork forecast a ]ong-term reduction in commercial agricultural activity in the future,
following patterns from the west. If realized, this will result in less consumptive use of �
ground water.
A working paper by the 1991 US/LJK Countrys�de Stewazdship Exchange Project
found that there weze 470 pazcels of Iand of 10 acres or largez in the Town of Southold,
comprising 13,500 acres. Active commercial fazms, 84 in number, involved ownership
of only 3,670 acres. Retired farms comprised 2,533 acros. Substantial acreage, much
� in sod, was leased land, not included in the active farnn list. A total of 1,100 acres o�
farmland in the Town have reportedly haci their dev�lopmcnt rights sold.
LEccErr�, �u�sxF.ARs �c G�uix�,Ir�c.
-�7-
PROPOSED WELIfFIELD LOCATIOY�iS ' '
SitQ A
Site A is a fazm site in an area presendy used for cabbages and potatoes and with
wine grapes, more potatoes and a small horse farm in the immediate azea. For the.
present, there would be moderate competition for the available water for irrigation
� purposes, and only minor potential for interference with domestic supply wells. The
preliminary yield potential of chis site is estimated as 0.5 mgd.
Si�,g B
Site B is in unoccupied woadlands directly to the east of the Laurel L�ce tract.
Nearby farmland is lying fallow; there is some active potato farrning to the west and
southwest. Competition with irrigation is deemed minar. lfiere is minor potential for
interference with domestic supply and commercial wells within the Laurel Lake
cammun'fty, tfie i a:mp Malloy area an� a-1���Main Road-(R�aute��5). The preliminary
; yield potential is estimated as 0.9 mgd. An issue that will ne�d to be addressed during
testing will be gotential impacts on fresh-water wedands about 1,000 feet to the north of
th� site.
There is an abandoned sand and gravel pit to the east of L,aurel L,ake neaz the
prospective well site. It has a hummocky appearance that looks like sand and gravel was
� dumped in, perhaps to cover something, rather than a typical mined-out appearance. No
direct evidence of dumping was �observed. This site should be checked out by test
borings and a monitoring well during testing for a production well si'te. The CLEARS
study makes note of this site and another gravel mining site 5outh of Main Road neaz
� Bray Avenue. In addition, an industrial site between Main Road and railroad trac3cs has
a history of above-ground storage tanks, scattered waste ar►d soil mounds. One or more
monitoring wells would b� war�-ant�d in this dir�ctior►.
���
Site C is in fazmland presently in use for vegetables and near some fallow land.
Potatoes are grown to the west, wine grapes to the south, and more fallow land lies to
LEcc�-r�. B�.sx��s & G�arw,Ixc.
-1�- '
the east. At present, there is mod.erate seasonal competition for the local ground water '
for irrigation, and some potential for interference with domestic supply wells along Main
Road (Route 25). The preliminary yield potential is estimated as 0.5 mgd.
it D
Site D is pr�..�ndy a Chrs::.^zas tre�farma_ Wi*�e grapes aa�e� beans aze being
grown to the west and northwest. The Town of Southold landfill is located 1.2 miles to
the north-northwest, on the northerly side of the ground-water divide. Competition with
seasonal irrigation water use appeacs light, but some potential for interference with
domestic supply wells along Main Road (Route 25) and nearby side streets. The
preliminary yield potential is estimated as 0.5 mgd. '
���
� Site E is mainly in a wine-grape area, mosdy associated with a single vintner.
Compedtion wieh sa:son� i.*�rigation is presendy lighc and the poter.tial -for interference
with domestic wells is slight. The preliminary yield potential is estimated as 0.5 mgd.
Site �'
� Sit� F is in a prirnarily residential and wooded are�. Dia�ectly to the northwest
is a recharge basin/pond which has wedands characteristics, and directly across Middle
Road is a gasoline station. The site is too small ta accornmod.ate a storage tank but land
1,000 to 2,t� feet to the northeast on the north side of Middle Road, neaz the power
line right-of-way, may be suitable. lfiere is little to no competition with irrigation
supplies, but sorne potendal for intezference with domestic supply.wells. A 1989 test
well at this site showed excellent water quality, and pore-watez sampl�s from the
intersta.dial clay showed fresh waee� ea more thari 1� feee below the production zone.
The paeliminary yield potential is estimated as 0.25 to 0.30 mgd. A public water-suppty
permit has been issued for two wells at this site with an authorized withdrawal rate of
28$,000 gpd (gallons per day).
LEGGFIT£,BRASHEARS BL GR�►HAM,IPYC.
-19-
� �ite-�Qecific 'Te�tin�g
Once suitable properties are locatecf for well installation, a testing program would
be initiated. At each site, a tesi well would be installed and a controlled pumping test
run to determine the zone of contribution. The tesis would utilize existing or newly-
. insta.11ed monitor wells zo Cet�rmine water-levei u;awdrn�s=a�-sp�cific distances from the
well fields. The final re�ommended well yields would be based on the aquifer testing.
The initial development is planned for the Laurel Lake azea. It is anticipated that
this well field will be capable of supplying water to the communities west of Mattituck
� Creek along Peconic Bay, as well as most of Mattituck.
In addition, the present investigation has included consideration of prosgective
well sites both east and west of Mattituck Creek and in Orient. No consideration has
been given to the Village of Greenport which operates its own public supply system
supported by wells. �
��Orient�:�Area �
Plate 1 also shows the much smaller and lower ground-water mound in Orient,
with the locadon of a prospective well-field site. Ba,sed on Table 7-4 of the NFWSP
(page 11 of this report), the Pea�ar�issive Sustained Yield of this area is already oder-
subscribed, mainly by agricultural pumpage. Considering that both the agricultural and
residential consumption peak during the same months, and the small volume of local
fresh ground-water storage, it appears likely that increases in pumpage would likely lead
to salt-water encroachment, especially in drought yeazs. A local source of public water
supply by shallow wells might be feasible if a significant volume of agricultural pumpage
is retireti. A rectangular manmade pond about a half mile to the east at the headwaters
to the wedands was identifi�by the CI.EP�RS study. The 197� anei 19�4 photos show�ti
the pond being filled in with material including miscellaneous waste. The extimatai yield
potential of this site is about 0.15 mgd.
L.Ecc��,B�►.s�xs & G�,a.�a,I�vc
-LV-
},:
GROUND-WATER QUALI'I'Y
Ground-water quality in the Town of Southold has been widely degraded by
leaching agricultural chemicals. Heavy fertilizez use has caused elevated nitrate levels,
commonly exceeding the drinking water standard of 10 mg/1 (milligrams per liter) of
nitra+�-:-:;�ogen. Concentrations of resiaae�_.of aldicarb �aad other pesticides and
fungicides also commonly exceed drinldng water limits. Naturally-occurring dissolved
iron and, to a lesser extent, manganese are also commonly esthetic nuisances for private
well owners. Where present above the Secondary Maximum Contaminant Levels in
public water-supply wells, treatment for removal would be required and would be a
benefit to customers. �
Well-site selection can minimize the concenvations of agricultural chemicals.
Initial sampling results from the Mill Lane test well in Peconic indicated excellent water
quality, but sust.ained� high-yield pumpage at any site will tend to draw in water from
laeerally-remote azeas,__and_to-ciraw wateP-fr�a.a�±-t�he�sp�er part or-the water tab�--�vhere
surficial chemical impacts tend to be concentrated. Any well in the Southold azea should
be -expected eventually to show impacts of agricultural chemicals, although not
necessarily in excess of drinking water standards. It would be prudent to plan on water
treatment for nitra.te and pesticidelherbicidelfun�icide removal and for iron and/or
manganese removal at each well field.
CONCLUSIONS AND RECOrR�.�iDATIONS
1. Therc is sufficient fresh ground water in the Town of Southold to support
the expected future population growth into the early part of the next century.
LEGGEITE,BItASHEARS 8t GRAHAr+4 INC-
-21-
2.� The expected future reduction in commercial agricultural''activity will
reduce the consumptive use of ground wate�, resulting in a more �avorable hydrogeologic
budget. Ground water used for domestic water supply is largely returned to the ground
by septic systems.
W
3. -�Ca�und-water quality in the Town or��uthold has been impaireci by
residues of agricultural chemicals. Although any well site may inidally show satisfactory
water quality, some water-quality degradation over time should be expected. Treatment
for nitrate and/or pesticidelheri�icidelfungicide residue removal and for �iron and/or
manganese removai should be planned for any pubiic watei well field in the Town. Over
the very long term, reduced agricultural activity should result in some ground-water
quality improvement.
4. Six well-field sites have been identified in the western part of the Town,
from the i�verhead border _tQ_.th�-.hamlet of Pecon��: i'��se_ site�-b�ve individual
projected yield potentials of 2Q0 to 625 gpm, and an aggregate esdmated yield of
3:2 mgd. Tank locations that would meet the Authority's elevation criterion aze available
at or near each well site. The well-field and tank sites have been situated sa as to be
reasonably close to populadon centers that may want public water-supply service. 1fie
uldmate distribution system would likely tie into the Greenport Water District, providing
addidonal back-up capacity for that system.
5. Ttie gmund-water resources in the (�rient azea appeat to be fully
subscribed by domestic and agricultural usage. If agricultural acreage is retired, a small .
lcxal well field may be feasible.
LEcc�.-rr�., BaAsx�s dc G�a.�„Itvvc.
-22- �
6. As with any Water Authority exploration prograrn, a full-scale testing
program should be conducted at any progzrsed well-field site to ascertain the hydraulic
characteristics of the subsurface material, the depth of the salt-water interface, t;��e
stradgraphy, the water quality and any potential impacts of watez-supply developme::�.
LEGGETTE, BRASHEARS & GRAHAM, INC. _
\�� � �
�
R. G. Slayba k, CPG
President
������ `
Robert Lamonica, CPG
Vice President
skd
7uly'28, `1992
southold:rptJ92-34
LEcc�'rE,Br�wsx�.n�s 8c G�a�,Ir�c.
'LJ-
. il�ir.C.lti:,l.�C r-� ,
Baier, 7. H. and Dennis Moran, 1981, "Status Report on Aldicarb Contamination of
Groundwater as of September 1981", Suffolk County Department of Health Services.
Baier, 1. H. and S: F. Robbins, 1982, "Report on the Occurrence and Movement oY�
Agricultural Chemicals in Groundwater - North Fork of Suffolk County", Suffolk
County Department of Health Services.
-Bohn-Buxton, Debra E., Herbert T. Buxton and Valerie-ann K. Eagen, in press,
"Ground-Water Flow Patterns and Traveltimes on North Fork, Long Island, New
York, in Relation to Aldicarb Cantamination", United States Geological Survey. �
'Crandall, H. C., 1963, "Geology and Ground-Water Resources of the Town of
Southold,,Surfolk County, New York", United States Geological Surv�y, Water
Supply'Baper 1619-GG.
; '.ERM-Northeast Engineers, P.C. and Camp, Dresser & McGee, 1983, "North Fork
1�Vater Supply Plan, Suffolk County, Ner�v York", prepared for Suffolk County
Department of Health Services.
Hoffman, John F., 1961, "Hydrology of the Shallow Ground-Water Reservoir of the
Town-of Southold, Suffolk County, Long Island, New York", United Stat�s
Geological Survey, Bulletin GW-42.
Holzmacher, McLendon & Murrell, 1970, "Comprehensive Public Water Supply
Study, Suffolk County, New York, CPWS-24.
Jensen, H. M. and Julian Soren, 1974, "Hydrogeology of Suffolk County, New
York", United States Geologic�i Survey, Hy.drologic Investigations Adas I�-501.
Leggette, Brashears & Graham, Inc., 1985, "Factors Affecting Water-Supply
Development in the Southold Area, Long Island, New York", prepared for Suffolk .
County Water Authority.
LEGGEI'TE,BRASHEARS BL GRAHAM, INC.
-�4-
Leggette, Brashears & Graham, Inc., 1989, "Hydrogeologic Evaluation of the
Richmond Creek Subdivision Property, Mill Lane, Peconic, New York", prepared for
Suffolk County Water Authority.
L,eggette, Brashe.ars & Graham, Inc., 1991, "Hydrogeologic Evaluation of the
Propeny at Oregon Road, Oregon Hilis, Town of Southold, New York", prepazed for
Suffolie �ounty WzteT-Authority.
Leggette, Brashears & Graham, Inc., 1992, "Patential Land Acquisition, Laurel, New
York", prepared for Suffolk County Water Authority.
Luscynski, N. J. and J. F. Hoffman, 1951, "The Water Table as of April 1950 in
Southold Township, Suffolk County, Long Island, New York", United States
Geological Survey, Open-File Report.
McClymonds, N. E. and O. L. Franke, 1972, "Water-Transmitting Properties of
Aquifers on Long Isla..a�d,.New York", Llniied States Geolo.gi��S�a:rreJ_,. Professional
Pager 627-F.
Soren, Julian and W. G. Stelz, 1984, "Aldicarb-Pesticide Contamination of Ground
Water in Fa:stern Suffolk County, New Yark", United States Geological Survey,
Water Resources Investigations Report.
Suffolk County Water Authority, 1990, "Southold Watershed Management Plan:
Evaluation of Proposed Alvah's Lane Wellsite, Hamlet of Cutchogue".
LEcc�rr�, B�as�a�s & G�n.�.�, Ir�c.
+,.
APPEND�L
FIGURE 41 FROII+Y. 1�N�SI'
LEGGF'ITL•,BBAS`HEARS $t GRA.RAArt,ING
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Appendix 7
Parcel Statistics
Parcel Statistics: Raw Acreage and Factored Lots witlun 75' of Existing Water Main, by
Zoning Designation
�' �on'�.� status, based on land use codes•
Desiqnation vacant not vac. unknown Totals
AC �
raw 497.5 1768.3 508.1 2773.9
factored 199.0 707.3 203.2 1109.6
AHD raw 8.7 82.1 --- 90.8
factored 23.5 221.7 --- 245.2
'"� 21.1 1�2.7 13.6 137.4
H� 8.8 126.1 7.1 142.0
FLD raw 3�.2 44.4 20.2 94.8
`factored 81.5 119.9 54.5 256.0
L.._� 12.7 55.1 3�3 76.1
,
LI 27.7 107.6 4.2 139.5
'Loo 55.7 142.7 9.4 207.8
'nlll --- 12.5 --- 12.5
M11 12.6 88.2 1.5 102.3
R40 raw 752.2 3293.4 130.7 4176.3
factored 601.8 2634.7 104.6 3341.0
R80 raw 731.9 1881.8 180.7 2794.4
factored 292.8 752.7 72.3 1117.76
�� �'�W 6.0 44.0 --- 50.0
factored 4.8 35.2 --- 40.0
RR 21.6 86.9 25.8 134.3
artiall /Full 12.7 7.7 15.8 36.2
Under Water
Parcel Statistics: Raw Acreage Factored Lots, within 75' of Potential Water Main, by
Zoning Designation
Zonin status, based on land use codes:
Desiqnation vacant not vac. unknown Totals
AC
raw 210.4 841 A 277.8 1329.2
factored . 84.16 336.4 111.1 531.7
AHL� raw --- --- ---
�
factored --- � --- ---
B --- 1.5 --- 1.5
HB -=- 2.1 4.7 6.8
HD raw --- --- ---
_
factored --- --- ---
LB 5.5 6.2 --- 11.7
LI 1.9 14.3 6.3 22.5
LIO --- 51.0 ---
MI --- --- ---
MII 7.2 20.5 0.1 27.8
R40 raw 328.6 1273.3 79.2 1681.1
factored 262.9 1018.6 63.4 1344.9
R80 raw 96.2 641.6 127.7 865.5
factored 38.5 256.6 51.1 346.2
RO raw --- 0.6 --- 0.6
factored --- 0.48 --- p.48
RR --- --- ---
Partiallv/Fuliv --- --- ---
Under Water
Parcel Statistics: Raw Acreage Factored Lots, Outside Water Service Area
Zo- n!�1 status, based on )and use codes: '
Desiqnation vacant not vac. unknown T�fals
AC
raw 33.1 5387.14 670.19 6090.41
factored 13.2 2154.9 268.1 2436.2
AHD raw 0.1 5.8 ___ 5 g
fac�ored 0.27- 15.7 --- 15.9
B 5.4 19.9 4.2 29.5
HB 11.8 13.8 5.9 31.6
HD raw 10.56 192.12 --- 202.68
factored � 28.51 518.7 --- 547.2
LB 1.4 18.2 --- 19.6 .
�� 15.3 69.4 1.3 86.0
-LI0 0.8 39.2 5.6 45.6
MI 0.0 �.1 --- 0.1
tVlll � 6.9 6.1 0.0 13.1
R40 raw � 369.01 976.71 128.75 1474.47
factored 295.2 781.4 103 1179.6
R80 raw 999.35 2�42.17 321.53 3463.05
factored 399.7 856.9 128.6 1385.2
R200 raw 103.3 821.6 --- 924.9
factored 16.5 131.5 --- 148
R400 raw 5.p 3 9 8 9
factored �.4 0.3 0.7
RO raw 0.5 3.5 --- 4.D
factored 0.4 2.8 --- 3.2
RR --- 27.1 --- 27.1
Appendia� 8
Water Quality at Select Non-Production Wells
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Append�-� �
Engineering Cost
� Suffoik County Water Authority-Engineering Dept
Tabie 1. Capitai and Operation and Maintenance Costs for a Perchlorate Ftemoval Treatment System,Ackeriy
Pond Well Field,Southold,Town of Southold,New York
A.CAPITAL COSTS-Based_on a 840 gpm T reatment System
Item Unit Quantity Unit Cost Total Cost
Structures
1) Exterior Siding and Roof on Treatment Sy stem L.S. 1 • $75,000 $ 75,000
Enciosure,Complete including ali electric,heat,
ventilation,insulation,doors,hardware,etc.
2) Concrete Foundation f or Treatment Sy stem Enclosure �.S. 1 $35,000 $ 35,000
� and Brine Tanks,Complete,including ail reinf.,slabs, .
etc.
Perchiorate Removal Svstem
3) 840 gpm Continuous Perchlorate Remov al Treatment L.S. 1 $1,200,000 $ 1,200,000
System,Complete as manuf.By Basin Water,including
all conVols,piping,f ittings,valves,prefilters, brine .
pumps,fiow meter,Resin,Oeliv ery,etc.
4) Instaliation of Perchiorate Remov ai Treatment Sy stem, L.S. 1 $25,000 $ 25,000
Compiete,including all rigging,assembly,piping,
fittings,etc.
5) Brine Tank and W astewater Coilection Tank L.S. 1 $25,000 $ 2500Q
Containment,_Gomplete,including Containment,
Instaliatlon,'level controls,alarms,piping,etc.
{; 6) Misc.Interconnecting Piping between Sy stem,tanks L.S. 1 $25,000 $ 25,000
and Yard Piping,Complete
Electrical
7) Underground Conduit 8 Controi Room Electrical W ork, L.S. 1 $40,000 $ 40,000
Complete
Yard PiAinq
8) Yard Piping Complete,i ncluding all misc.f ittings,
Copper,Gaskets,Thrustblocking,Roding,etc.
a. 6-inch diameter L.F. 100 $20 $ 2,000
b. 12-inch diameter L.F. 400 $40 $ 16,000
9) Valves and Hydrants L.S. 1 $5,000 $ 5,000
10) Labor for Yard Piping instaliation Day 10 $2,700 $ 2�,000
Other
11) Misc.Site W ork-including Asphait Pav ing to Treatment L.S. 1 $75,000 $ 75,000
System,Grading,Topsoil and Seeding Landscaping,
Fencing,etc.
Subtotai: $ 1,550,000
Engineering(20%): $ 310,000
Contingency 12p%)� $ 372,000
TOTAL ESTIMATED CAPITAL COST: $ 2,232,000
f G� f
� �
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l c' , �
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Suffolk County Water Authority-Engineering Dept ,
Table 1. Capital and Operation and Maintenance Costs for a Perchiorate Removal Treatment System,Ackerly
Pond Weli Fieid,Southoid,Town of Southold,New York
B. O&M(ANNUAL)COSTS-Based on 122,001,250 gailons per y ear treated
Item Unit Quantity Unit Cost Total Cost
Operationai
1) -Sodium-Chloride ton 146 $ 75.00 $ -iD,980
2) Wastewater Disposai-Cost f or disposal to the Bergen Gailons 246,907 $ 0.08 $ 19,753
Point STP
3) ' Additional Operator Costs-includes daily system check, man-hours 183 $ 55.00 $ 1D,065
coilecGng samples,etc.(av g.0.5 hrs./day)
4) Electric-includes only the electricity for the treaUnent kw/hr 15,000 $ 0.15 $ 2,250
system and enclosure
5) Water Quality Sampies-Perchlorate Analy sis of Raw each 104 $ 50.00 $ 5,200
and Treated W ater '
Maintenance
1) P.C.Mechanic Costs-General maintenance,Brine man-hours 40 $ 70.00 $ 2,800
Pumps,Vaives-test and adjust actuators,Check and
calibration of differenUal pressure gauges,f low meters,
level controls and switches,etc.
2} Misc.Parts and Materiafs L.S. 7 $ 1,000.00 $ 1,000
Subtotai: $ 52,048
Administration(10%) $ 5,205
ConUnqency(10%): $ 5,725
� I�j "'� � TOTAL ESTIMATED ANNUAL O&M COSTS: $ 62,978 �— r��j��i�'l�
TOTAL ESTIMATED O&M COSTS PER 1,000 GALLONS TREATED: $ 0.52
Operation 8�Mafntenance T reatment Cost A ssumptlons
1) Yearly O&M Treatrnent are based on sy stem operating @ 840 gpm f or avg.6.6 hours/day and 365 days/year for
a total of 122 million gallons of treated water per y ear.
2) pH adJustment(Lime)and sodium hy pochlorite costs are not inciuded in this cost estimate. �
3) ElecVic costs are prov ided oniy for the operation of the Perchiorate remov al Veatment process,well pump
• electric costs are not included.
4) Average Total Treated f low for Ackeriy Pond Lane W ell Fieid= 122,001.250 gallons.
� i `' � �°" � vti� ,^)�d �y S l�r ,: F � 'I i�l �'`
-F..�
j.� �;. � i.r f � .. . r c.: ,��f'�
�, '( � , ,;`�.
Suffolk County Water Authority-Engineering Dept �
Tabie 2. Capitai and Operation and Maintenance.Costs for a Perchlorate Removai Treatment System,
Evergreen Drive Weli Field,Cutchogue,Town of Southold,New York
A.CAPITAL COSTS-Based on a 50 gpm T reatment 5ystem
Item Unit Quantity Unit Cost Total Cost
Structures
1) Exterioc Sidina and Roof on Treatment Sy stem- L.S. 1 $20,000 $ 20,000
, Enclosure,Complete including all elecUic,heat,
ventiiation,insulation,doors,hardware,etc.
2) Concrete Foundation f or Treatment System Enclosure L.S. 1 $10,000 $ 10,000
and Brine Tanks,Compiete,including ail reinf.,slabs,
etc.
P.erchlorete Removal Svstem
3) 50 gpm Continuous Perchlorate Remov ai Treatment L.S. 1 $150,000 $ 150,000
System,Complete as manuf.By Basin Water,including
all controls,piping,f iriings,valves,prefilters, brine •
pumps,flow meter,Resin,Deliv ery,etc.
4) Instailatlon of Perchlorate Remov al Treatment Sy stem, L.S. 1 $10,000 � $ 10,000
Complete,inciuding aii rigging,assem6ly,piping,
flttings,etc.
�?- Brine Tank and Vi/astewater_Collectlon Tank LS.. 1 $5,000 $ 5,000
Confainment,_Camplete,including Containment,
Instailation,level controls,aiarms,piping,etc.
6) Mtsc.Interconnecting Piping 6etween Sy stem,tanks L.S. 1 $5,000 $ 5,000
and Yard Piping,Complete
Electricai
7) Underground Conduit&Control Room ElecVicai W ork, L.S. 1 $15,000 $ 15,000
Complete •
Yard Pininq
8) Yard Piping Complete,l ncluding ali misc.f ittings,
Copper,Gaskets,Thrustblocking,Roding,etc.
a. 6-inch diameter L.F. 230 $20 $ 4,600
b. 12-inch diameter L.F. 0 $4p $ _
9) Vaives and Hydrants L.S. p $p g _
10) Labor for Yard Piping I nstallation Day 2 $2,700 $ 5,400
Other
11) Misc.Site W oric-including Asphalt Pav ing to Treatment l..S. 1 $15,000 $ 15,000
System,Grading,Topsoii and Seeding Landscaping,
Fencing,etc.
Subtotal: $ 240,000
Engineering(20%): $ 48,000
Contingency(20°/a): $ 57,60D
TOTA�ESTIMATED CAPITA�COST: $ 345,600
�� , .� �
?, - ���1� : a��__
Suffoik County Water Authority-Engineering Dept
Table 2. Capital and Operation and Maintenance Costs for a Perchlorate Removal Treatment System,
Evergreen Drive Weil Fieid,Cutchogue,Town of Southold,New York
B. O&M(ANNUA�)COSTS-Based on 219,000 gatlons per y ear treated
Item Unit Quantity Unit Cost Total Cost
Operational
1) SodiumChioride_ ton- 0.3 $ 75:00- $ 20
2) Wastewater Disposal-Cost f or disposal to the Bergen Ga�lons 438 $ 0.08 $ 35
Point STP
3) AddiBonal Operator Costs-includes daily system check, man-hours 183 $ 55.00 $ 10,065
co►lecting sampies,etc. (av g.0.5 hrs./day)
4) ElecVic-inciudes only the electricity for the treaVnent kw/hr 2,000 $ 0.15 $ 300
• system and enciosure
5) Water Qualiry Sampies-Perchlorate Analy sis of Raw each '104 $ 50.00 $ 5,200
and Treated W ater
Maintenance
1} P.C.Mechanic Costs-General maintenance,Brine man-hours 40 $ 70.00 .$ 2,800
Pumps,Valves-test and adjust actuators,Check and
calibralion of differenUai pressure gauges,f low meters,
level controls and switches,etc.
2) _Misc..Parts andMaterials C.S: 1 $- 1,000.00 $ 1;000=
• Subtotai: $ 19,420
Administration(10%) $ 1,942
_ Contin ency(10%): $ 2136
TOTAL ESTIMATED ANNUAL 08�M COSTS: $ 23,498 �- a N �9 a� '�'�fI,''��'
TOTAL ESTIMATED O&M COSTS PER 1,000 GALLONS TREATED: $ 107.30
�"��7,7y
Operation&Maintenance T reatment Cost A ssumpUons
1) Yearly O&M Treatment are based on sy stem operating @ 50 gpm f or avg.0.2 hours/day and 365 days/year for
a total of 0.219•miilion gallons of Veated water per y ear.
2) pH adjustrnent(Lime)and sodium hy pochiorite costs are not included in this cost esUmate.
3) Electric costs are prov ided only for the operation of the Perchlorate remov al Veatment process,weli pump
electric costs are not inciuded.
4) Average Total Treated f low for Evergreen Driv e W ell Feid= 219,000 gallons.
Suffolk County Water Authority-Engineering Dept
Table 3. Capitai and Operation and Maintenance Costs far a Perchiorate Removai Treatment System,Inlet
Drive Lane Weli Field,Mattituck,Town of Southald,New York
A.CAPITAL COSTS-Based on a 400 gpm T reatment System
item Unit Quantity Unit Cost Totai Cost
Structures
1) ErcteriorSiding and Roof cn 7ceatment System LS_ 1 $40;�G0- $ 40,OQ0
Enclosure,Complete including all electric,heat,
ventilation,insulaUon,doors,hardware,etc.
2) Concrete Foundation f or TreaUnent Sy stem Enclosure �.S. 1 $20,000 $ 20,000
and Brine Tanks,Compiete,including all reinf.,slabs,
etc.
Perchiorate Removal Svstem
3) 400 gpm Continuous Perchlorate Remov ai Treatment L.S. 1 $700,000 $ 700,000
System,Complete as manuf.By Basin W ater,including
aU controls,piping,f ittings,vaives,prefilters, brine
pumps,fiow meter,Resin,Deliv ery,eta
4) Installatlon of Perchiorate Remov al Treatment System, �.S. 1 • $20,000 $ 20,000
Complete,inciuding all rigging,assembly,piping,
fittings,etc.
5} Brine Tank and W astewaterCoilection Tank LS. 1 $10;000 $. 10,OOd
Containment,Complete,including Containment;
instailation,level controis,alarms,piping,etc.
j 6) Misc.interconnecting Piping between Sy stem,tanks L.S. 1 $15,000 $ 15,000
and Yard Piping,Complete
-=Electrical
7) Underground Conduit&Control Room Eiectrical W ork, LS. 1 $25,000 $ 25,000
Complete
Yard Pinina
8) Yard Piping Complete,I ncluding all misc.f ittings,
Copper,Gaskets,Thrustbiocking,Roding,etc.
a. 6-inch diameter �.F. 240 $20 $ 4,800
b. 12-inch diameter L.F. 0 $40 $ -
9) Valves and Hydrants L.S. 1 $4,000 $ 4,000
10) Labor for Yard Piping InstailaUon Day 6 $2,700 $ 16,200
Other
11) Misc.Site Work-including Asphait Pav ing to Treatment L.S. 1 $40,000 $ 40,000
5ystem,Grading,Topsoii and Seeding Landscaping,
Fencing,etc.
Subtotai: $ 895,000
Engineering(20%): $ 179,p0�
Continge�cy(20%): $ 214,800
TOTAL ESTIMATED CAPITAL COST: S 1,288,800
i p
4
.��, ��7 �',�
,
Suffolk County Water Authority-Engineering Dept ,
Table 3. Capital and Operation and Maintenance Costs for a Perchlorate Removal Treatment System,(nlet �
Drive Lane Weil Fieid,Mattituck,Town of Southold,New York
B. 08M(ANNUAL)COSTS-Based on 41,975,000 gallons per y ear treated
item Unit QuanGty Unit Cost Total Cost
Operational
1) Sodfum Chloride ton 5Q -$ ?5.OD v 3;??8
2) Wastewater Oisposal-Cost f or disposal to the Bergen Gallons 83,950 $ 0.08 $ 6,716
Point STP •
3) Additional Operator Costs-includes daily system check, man-hours 183 $ 55.00 $ 10,065
collecting samples,etc.(av g.0.5 hrsJday)
4) `Electric-inciudes only the electricity for the Veatment kw/hr 7,5Q0 $ 0.15' $ 1,125 �
system and enciosure
5) Water Quaiity Samples-Perohlorate Analy sis of Raw each 104 $ 50.00 $ 5,200
and Treated W ater
-Maintenance
1) P.C.Mechanfc Costs-Generai maintenance,Brine man-hours 40 $ 70.00 $ 2,800
Fumps,Vaives-test and ad)ust actuators,Check and
calibration of differential pressure gauges,f low meters,
levei conVois and switches,etc.
2j Misc.-Parts-and Materials L.S. 1 $ 1;U00.00 $ 1,000
Subtotal: $ 30,684
Administration(10%) • $ 3,068
� Contingency(10%): $ 3,375
n 6
TOTAL ESTIMATED ANNUAL O&M COSTS: $ 37,127 i' t� ��•�n � 'u�!' -'%
TOTA�ESTIMATED 08M COSTS PER 1,000 GALLONS TREATED: ' $ ' 0.88 , �✓
/ .,
Operation&Maintenance T reatment Cost A ssumptions
1) Yearly O&M TreaUnent are 6ased on sy stem operating @ 400 gpm f or avg.4.8 hours/day and 365 dayslyear
for a tatal of 41.97 million galions of treated water per y ear.
2) pH adjusVnent(Lime)and sodium hy pochiorite costs are not included in this cost estimate.
3) Electric costs are prov ided only for the operaUon of the Perchiorate remov ai treatment process,well pump
electric costs are not included.
4) Average Total Treated f low for Intet Orive�ane W ell Field= 41,975,000 gallons.
5uffolk County Water Authority-Engineering Dept. '
Table 4. Capitai and Operation and Maintenance Costs i�r a Perchlorate Rernoval Treatment S�stem,Laurel
Lake Weil Field,Laurel,Tov�of 5outhold,NewYork
A.CAPITAL COSTS-Based on a 450 apm Treatment System
Item Unit Quantity Unit Cost Total Gost
Structures
1) Exterior Sidinc,�.-^and-Roof on Treatment System L.S. fi $40,000 $ 40;OOD
Enciosure,Compiete including ail electric,heat,
ventilation,insulation,doors,hardware,etc.
2) Concrete Foundation for Treatment System Enciosure � L.S. 1 $20,000 $ 20,000
and Brine Tanks,Complete,including aii reinf.,slabs,
etc.
Rerchiorate Removal Svstem
3) 450 gpm Continuous Perchiorate Removal Treatment L.S. 1 $725,000 $ 725,000
System,Complete as manuf.By Basin Water,including
aIl controls,piping,fittings,valves,prefilters, brine
pumps,flow meter,Resin,Delivery,etc.
4) Installation of Perchlorate Removal Treatment System, L.S. 1 $20,000 $ 20,000
Complete,inciuding ail rigging,assembly,piping,fittings,
etc.
5) Brine Tank and Wastewater Collectiorr�ank. LS. 1 $10;000 ,$. 1.4,D00
Containment,Compleie,including Gontainment,
installation,level controis,alarms,piping,etc.
� 6) Misc.Interconnecting Piping between System,tanks and l.S. 1 $15,000 $ 15,000
Yard Piping,Complete
Electrical
7) Underground Conduit&Controi Room Eiectrical Work, L.S. 1 $25,000 $ 25,000
Compiete
Yard Pininq
8) Yard Piping Complete,Including all misc.fittings,
Copper,Gaskets,Thrustblocking,Roding,etc.
a. 6-inch diameter L.F. 305 $20 $ 6,100
, b. 12-inch diameter �.F. 0 $40 $ -
9) Valves and Hydrents L.S. 1 $5,OOD $ 5,000
10) Labor for Yard Piping Installation Day 7 $2,700 $ 18,900
Other
11} Misc.Site Work-including Asphalt Paving to Treatment l'.S. 1 $40,000 $ 40,000
System,Grading,Topsoil and Seeding Landscaping,
Fencing,etc.
5ubtotai: $ 925,000
Engineering(20%): $ 185,000
Contingency(20%): $ 222,000
TOTAL ESTIMATED CAPITAL COST: y^ 1,332,000 y ��I� _. (j�,`� .�Jh�
!?—
B. O&M(ANNUAL)COSTS-Based on 80 300 000 qailons per year treated
Suffolk County Water Authority-Engineering Dept.
Table 4. Capital and Operation and Maintenance Costs br a Perchlorate Removai Treatment Sastem,Laurel
Lake Weli Field,Laurel,Tov�n of Southold,NewYork
- Item Unit Quantity Unit Cost Total Cost
Operational
1) Sodium Chloride ton 96 $ 75.00 $ 7,227
2) Wastewater Disposal-Cost for disposal to the Berge� Gailons 160,600 $ 0.08 $ 12,848
Point STP
3) Additionai Operator Costs-inciudes daily system check, man-hours 183 $ 55.00 $ 10,065
coilecting samples,etc.(avg.0.5 hrs./day)
4) Eiectric-inciudes only the eiectricity for the treatment kw/hr 9,000 $ 0.15 $ 1,350
system and enclosure
5) Water Quality Sampies-Perchlorate Analysis of Raw each 104 $ 50.00 $ 5,200
and Treated Water
Maintenance
1) P.C.Mechanic Costs-General maintenance,Brine � man-hours 40 $ 70.00 $ 2,800
Pumps,Valves-test and adjust actuators,Check and
calibration of differentia!pressure gauges,flow meters,
level controls and switches,etc.
2-)_ Misc.Parts and Materiais- L:S: 1 $ 1,000.00 $ 1;OD0
Subtotal: $ 40,490
Administration(10%) $ 4,049
Continqency(10%): $ 4,454
. TOTA�ESTIMATED ANNUAL O&M COSTS: $ 48,993 -� 9 3 a y o� l��a a�
TOTAL ESTIMATED OS�M COSTS PER 1,000 GALLONS TREATED: $ 0.61 /���'��
Operation&Maintenance Treatment Cost Assumptions
1) Yea�ly 08�M Treatment are based on system operating @ 450 gpm for avg.8.1 hours/day and 365 days/year
for a totai of 80.3 million gallons of treated water per year.
2) pH adjustment(Lime)and sodium hypochlorite costs are not included in this cbst estimate.
3) Electric costs are provided only for the operation of the Perchlorate removai treatment process,well pump
electric costs are not inGuded.
4) Average Total Treated flow for Laurei Lake Weil Fieid= 80,300,000 galions.
$uffolk Couoty Water Authority-Engineering Dept. '
Table 5. Capitai and Opera6on and Maintenance Costs br a Perchiorate Removal Treatment S�Stem,Main
Bayview Well Field,Cutchogue,Tov�n of Southold,NewYork
A.CAPITAL COSTS-Based on a 25 gpm Treatment System .
Item Unit Quantity Unii Cost Total Cost
Structures
• 1) Exterior Siding-anB�Roof on Treatment System L.S. 1 $15,000 $ 15,000
EnGosure,Compiete including all electric,heat,
ventilation,insulation,doors,hardware,etc.
2) Concrete Foundation for Treatment System Enclosure l.S. 1 $7,500 $ 7,500
and Brine Tanks,Complete,including all reinf.,slabs,
etc.
•Ferchlorate Removal Svstem
3) 25 gpm Continuous Perchlorate Removal Treatment L.S. 1 $15D,0�0 $ 150,000
System,Complete as manuf.By Basin Water,induding
'all controls,piping,fittings,vaives,prefiiters, brine
pumps,flow meter,Resin,Delivery,etc.
4) Instaliation of Perchiorate Removai Treatment System, L.S. 1 $10,000 $ 10,000
• Compiete,including all rigging,assembly,piping,fittings,
-etc.
5) Brine Tank and Wastewatar Coilection Tank L.S. 1 $3;000 $ 3,000_
Gontainment,Compiete,inoinding Containment,
lnstailation,level controis,alarms,piping,etc.
'. 6) Misc.interwnnecting Piping between System,tanks and L.S. 1 $5,000 $ 5,000
Yard Piping,Compiete
Electrical
7) Underground Conduit&Control Room Electrical Work, L.S. 1 $15,000 $ 15,000
Gomplete �
- Yard Pioina
8) Yard Piping Complete,Including ail misc.fittings,
Gopper,Gaskets,Thrustbiocking,Roding,etc.
a. 6-inch diameter L.F. 230 $20 $ 4,600
b. 12-inch diameter L.F. 0 $40 $ _
9) Valves and Hydrants L.S. 0 $0 $ _
10) �abor for Yard Piping Installation Day 2 $2,700 $ 5,400
Other
11) Misc.Site Work-including Asphalt Paving to Treatment �.5. 1 $15,000 $ 15,000
System,Grading,Topsoil and Seeding Landscaping,
Fencing,etc.
Subtotal: $ 230,500
Engineering(20°/a): $ 46,100
Contingency(20%): $ 55,320
TOTAL ESTIMATED CAPITAL COST: $ 331,920 ��� _
y,
B. O&M(ANNUAL)COSTS-Based on 1 825 D00 qailons per year treated �r�� �J L/
�X �
Suffolk County Water Authority-Engineefing Dept.
Table 5. Gapital and Operation and Maintenance Costs br a Perchlorafe Removal Treatment S�stem,Main
Bayview Weff Fieid,Cutchogue,To�n of Southoid,NewYork
Item Unit Quantity Unit Gost Total Cost
Operational
1) Sodium Chloride ton 2 $ 75.00 $ 164
2) Wastewater Disposal-Cost for disposal to the Be�gen Gailons 3,600 $ 0.08 $ 288
Poi�t STP
3} Additional Operator Costs-inciudes daily system check, man-hours 183 $ 55,00 $ 10,065
collecting samples,etc. (avg.0.5 hrs./day)
4) Electric-includes oniy the electricity for the treatment kw/hr 2,000 $ 0.15 $ 300
system and enclosure
5) Water Quality Samples-Perchlorate Analysis of Raw each 104 $ 50.00 $ 5,200
and Treated Water
Mafntenance
1) P.C.Mechanic Costs-General maintenance,Brine man-hours 40 $ 70.00 $ 2,800
Pumps,Vaives-test and adjust actuators,Check and
calibration of differentiai pressure gauges,flow meters,
level controls and switches;ete.
2) Misc.Parts and Matedals l.S. 1 $ 1,000.00 $ 1;000
SubtotaL• $ 19,81.7
Administration(10°10) $ 1,982
Contingency(10%): $ 2,180
TOTAL ESTIMATED ANNUAL O&M COSTS: $ 23,979 } a 31 ���� L'���f�'
TOTAL ESTIMATED O&M COSTS PER 1,000 GALLONS TREATED: $ 13.14 / y .;� ��
,�,) .
Ope�ation&Maintenance Treatment Cost Assumptions
1) Yearly 08M Treatment are based on system operating @ 25 gpm for avg.3.3 hours/day and 365 days/year for
a totai of 1.825million galions of treated water per year.
2) pH adjustment(Lime)and sodium hypochlorite costs are not included in this cost estimate.
3) Electric costs are provided only for the operation of the Perchiorete removal treatment process,well pump
electric costs are not included.
4) Average Total Treated flow for Main Bayview Weil Fieid= 1,825,000 gailons.
Suffoik County Water Authority-Engineering Dept.
Table 6. Capital and Operation and Maintenance Costs br a Perchlorate Removal Treatment S}stem,Middle
Road Well Field,Peconic,Tovui of Southoid,NewYork
A.CAPITA�COSTS-Based on a 50 gpm Treatment System
item Unit Quantiry Unit Cost Total Cost
Structures
1) Exterior-Sic�ing and Roof on Treatment System �.5: 1 $20,000 -$- 20,000 '
Enciosure,Compiete including ail electric,heat,
ventilation,insulation,doors,hardware,etc.
2) Concrete Foundation for Treatment System Enclosure L.S. 1 $10,000 $ 10,000
and Brine Tanks,Complete,inciuding all reinf.,slabs,
etc.
�Perchlorate Removal System
3) 50 gpm Continuous Perchiorate Removal Treatment L.S. 1 $150,000 $ 150,000
System;Complete as manuf.By Basin Water,including
ali controls,pipi�g,fittings,valves,prefilters, brine
pumps,fiow meter,Resin,Delivery,etc.
4) installation of Perchlorate Removal Treatment System, L.S. 1 $10,000 $ 10,000
Complete,including all rigging,assembly,piping,fittings; ,
etc.
5) Brine Tank and Wastewater Col�ectionTank L.S. 1 $5,000 $ 5,000
. Containment,Completerincluding Containment,
installation,level controis,alarms,piping,etc.
�. 6) Misa interconnecting Piping between System,tanks and L.S. 1 $5,000 $ 5,000
Yard Piping,Compiete �
Electrical
7) Underground Conduit&Control Room Electrical Work, L.S. 1 $15,000 $ 15,000
Compiete
Yartl-Pfoina
8) Yard Piping Compiete,inciuding ali misc.flttings,
Copper,Gaskets,Thrustblocking,Roding,etc.
a. 6-inch diameter L.F. 230 $20 $ 4,600
b. 12-inch diameter L.F. 0 $40 $ _
• 9) Valves and Hydrants L.S. 0 $0 $ _
10) Labor for Yard Piping Instailation Day 2 $2,700 $ 5,400
Other
� 11) Misc.Site Work-including Asphali Paving to Treatment L.S. i $15,000 $ 15,000
System,Grading,Topsoil and Seeding Landscaping,
Fencing,etc.
Subtotal: $ 240,000
Engineering(20°/a): $ 48,000
Contingency(20%): $ 57,600
TOTAL ESTIMATED CAPITAL COST: $ 345,600 ( )'�� —
/
B. 08M(ANNUAL)COSTS-Based on 5 000 500 atlons per year treated �)+.'�C�a
J
5uffoik County Water Authority-Engineering Dept. •
Table 6. Capitai and Operation and Maintenance Costs br a Perchiorate Removal Treatment S�stem,Middle
Road Well Field,Peconic,Tov�n of Southold, NewYork
Item Unit Quantity Unit Cost Totai Cost
Operational
1) Sodium Chioride ton 6 $ 75.00 $ 450
2) Wastewater Disposal-Cost for disposai to the Bergen Gailons 10,001 $ 0.08 $ 800
' Point STP
3) Additionai Operator Costs-includes daily system check, man-hours 183 $ 55.00 $ 'f 0,065
collecting samples,etc. (avg.0.5 hrs./day)
4) Electric-indudes oniy the electricity for the treatment kw/hr 2,000 $ 0.15 $ 30D
system and enclosure
5} Water Quality Samples-Perchlorate Analysis of Raw each 104 $ 50.00 $ 5,200
and Treated Water
Maintenance
1 j P.C.Mechanic Costs-General maintenance,Brine man-hours 40 $ 70.00 $ 2,800
'Pumps,Valves-test and adjust actuators,Check and
calibration of differential pressure gauges,flow meters,
level controls and switches,etc.
2}- Misc.Pa�ts and Materiais L.S. 1 $ 1,000.00 $ 1,000.
Subtoiai: $ 20,615
Administration(10%) $ 2,062
Contingency(10%): $ 2,268
TOTAL ESTIMATED ANNUAL O&M COSTS: 5 24,944 -� a`I i�a= y 913�
TOTAL ESTIMATED O&M COSTS PER 1,000 GALLONS TREATED: $ 4.99 � �
i'� �,8�
Operation&Maintenance Treatment Cost Assumptions
1) Yearly 08M Treatment are based on system operating @ 50 gpm for avg.4.6 hours/day and 365 days/year for
a total of 5 million gallons of treated water per year.
2) pH adjustment(Lime)and sodium hypochlorite costs are not inciuded in this cost estimate.
3) Electric costs are provided only for the operation of the Perchlorate removal treatment process,well pump
eieciric costs are not inciuded.
4) Average Totai Treated flow for Middle Road Weli Fieid= 5,000,500 gailons.
Suffoik County Water Authority-Engineering Dept. '
� Table 7. Capital and Operation and Maintenance Costs br a Perchlorate Removal Treatment S�Stem,Mili
Lane Weli Fieid,Peconic,Tov�n of Southold,Nevu York
A.CAPITAL COSTS-Based on a 600 qprn Treatment System
item Unit Quantity Unit Cost Total Cost
Structures
1) ExteriorSiding and Roof on 7reatment System L.S. 1 $60,000 $- 60,000
Enclosure,Complete inciuding ali electric,heat,
ventiiation,insuiation,doors,hardware,etc.
2) Concrete Foundation for Treatment System Enciosure L.S. 1 $25,000 $ 25,000
and Brine Tanks,Gomplete,including all reinf.,slabs,
etc.
Perchlorate Removal Svstem
3) 6b0 gpm Continuous Perchlorate Removal Treatment L5. 1 $960,000 $ 960,000
System,Complete as manuf.By Basin Water,inciuding
ail controls,piping,fittings,valves,prefilters, brine
pumps,flow meter,Resin,Delivery,etc.
4) Installation of Perchlorate Removal Treatment System, �.S. 1 $20,000 $ 20,000
Complete,inciuding all rigging,assembly,piping,fittings, •
etc.
5) Brine Tankand Wastewater Collection Tank L.5. 1 $12,QDD $ 12,OOD
Gontainmen�;Camplete,—including Containment,
' Instaliation,level controls,alarms,piping,etc.
�. 6) Misc.Interconnecting Piping beiween System,tanks and L.S. 1 $15,000 $ 15,000
Yard Piping,Complete
Electricai
7) Underground Conduit 8 Control Room Electrical Work, L.S. 1 $25,000 $ 25,000
Gompiete
t Yard Pipin4
� 8) Yard Piping Complete,Uciuding all misc.fittings,
Copper,Gaskets,Thrustblocking,Roding,etc.
a. 6-inch diameter l.F. 420 $20 $ 8,400 •
b. 12-inch diameter L.F. $40 $ -
9) Valves and Hydrants �.5. 1 $5,000 $ 5,000
10) Labor for Yard Piping installation Day 8 $2,700 $ 21,600
Other
'11) Misc.Site Work-including Asphalt Paving to Treatment L.S. 1 $40,000 $ 40,000
System,Grading,Topsoii and Seeding Landscaping, � �
. Fencing,etc.
Subtotal: $ 1,192,000
Engineering(20%): $ 238,400
• Contingency(20%): $ 286,080
TOTAL ESTIMATED CAPiTAL COST: $ 1,716,480 � '"
r � -�
B. O&M{ANNUAL)COSTS-Based on 20 075,000 qallons per year treated � %�(/
1,��?, J
Suffolk County Water Authority-Engineering Dept.
Table 7. Capital and Operation and Maintenance Costs br a Perchlorate Removal Tceatment S�stem,Miil
Lane Weii Field,Peconic,ToUn of Southold,New York
item Unit QuanGty Unit Cost Total Cost
� Operationai
1) Sodium Chloride ton 24 $ 75.00 $ 1,807
2) Wastewater Disposai-Cost for disposal to the Bergen Gallons 41,823 $ 0.08 $ 3,346
Point STP
3) Additional Operator Costs-includes daily system check, man-hours 183 $ 55.00 $ 10,065
coilecting samples,etc.(avg.0.5 hrs./day)
4) Electric-inciudes only the electriciry for the treatment kw/hr 12,000 $ 0.15 $ 1,800
system and enclosure
5) Water Quality$amples-Perchlorate Analysis of Raw each 104 $ 50.00 $ 5,200
and Treated Water
Maintenance
1) P.C:�Mechanic Costs-Generai maintenance,Brine man-hours 40 $ '70.00 $ 2,800
'Pumps,Valves-test and adjust actuators,Check and
calibration of differentiai pressure gauges,flow meters,
level controis and switches,etc.
2) Misc.Parts and Materials L:S. 1 $ 1,000.00 $ 1,OD0
. Subtotal: $ 26,018
Administration(10%) $ 2,602
Contingency(10%): $ 2,862
TOTAI ESTIMATED ANNUA�O&M COSTS: $ 31,481 -f���.�� t 5`f= (51,ra 3�
TOTAL ESTIMATED O&M COSTS PER 1,000 GALLONS TREATED: $ 1.57//� �
i. >'
Operation 8 Maintenance Treatment Cost Assumptions
1) Yeariy O&M Treatment are based on system operating @ 600 gpm for avg.1.5 hours/day and 365 days/year
for a total of 20.075 million gallons of treated water per year.
2) pH adjustment(�ime)and sodium hypochiorite costs are not included in this cost estimate.
3) Electric costs are provided only for the operation of the Perchlorate removai treatment process,weli pump
electric costs are not included.
4) Average Total Treated flow for Mill Lane Well Field= 20,075,000 gailons.
Suffolk County Water Authority-Engineering Dept.
Table 8. Capital and Operation and Maintenance Costs br a Perchlorate Remova{Treatment S�Stem,OId
North Road Well Field,Southold,Tov�of Southold,New York
A.CAPITAL COSTS-Based on a 800 m Treatment S stem
Item Unit Quantity Unit Cost Total Cost
Structures
1) F�cterior Siding and Roof on Treatment System L.S. 1 $75,000 $ 75,000
Enclosure,Complete including aIi electric,heat,
ventilation,insulation,doors,hardware,etc.
2) Concrete Foundation for Treatment System Enclosure L.S. 1 $35,000 $ 35,000
and Brine Tanks,Compiete,inciuding all reinf.,siabs,
etc.
Rerchlorate Removal Svstem .
3) 840 gpm Continuous Perchiorate Removal Treatment L.S. 1 $1,050,000 $ 1,050,000
System,Complete as manuf.By Basin Water,including .
ail controis,piping,fittings,valves,prefiiters, brine
pumps,flow meter,Resin,Delivery,etc.
4) installation of Perchlorate Removal Treatment System, L.S. 1 $25,000 $ 25,000
Complete,including alI rigging,assembly,piping,fittings,
etc. •
5) Brine�t'ankand Wastewater Goliection Tank LS. 'I $15,000 $ 15,000
.Containment,Compiete,including_CAntairar�ent,
installation,levei controls,alarms,piping,etc.
6) Misc.Interconnecting Piping between System,tanks and L.S. 1 $25,000 $ 25,000
Yard Piping,Complete
Etectrical
7) ' Underground Conduit 8 Control Room Electricai Work, L.S. 1 $40,000 $ 40,000
Complete
Yard Pfoinq �
8) Yard Piping Complete,Inciuding ail misc.fittings,
Gopper,Gaskets,Thrustbiocking,Roding,etc.
a. 6-inch diameter L.F. 100 $20 $ 2,000
b. 12-inch diameter L.F. 400 $40 $ 16,000
9) Valves and Hydrants L.S. 1 $5,000 $ 5,000
10) Labor for Yard Piping Insiallation Day 10 $2,700 $ 27,000
Other
11) Misc.Site Work-including Asphalt Paving to Treatment �.S. 1 $75,000 $ 50,000
System,Grading,Topsoil and Seeding Landscaping,
Fencing,etc.
Subtotal: $ 1,365,000
Engineering(20%): $ 273,000
Contingency(20%): $ 327,600
TOTA�ESTiMATED CAPITAL COST: $ 1,965,600 �I�
:` �.b�
B. O&M(ANNUAL)CdSTS-Based on 33 003 300 gailons per vear treated �i� �g�
. i'
Suffoik County Water Authority-Engineering Dept. ,
Table 8. Capital and Operation and Maintenance Costs br a Perchlorate Remova!Treatment S�Stem,Old
North Road Well Fieid,Southold,Tov�n of Southold,New York
Item Unit Quantity Unit Cost Total Cost ,
Operational
1) Sodium Chloride ton 40 $ 75.00 $ 2,970
2) Wastewater Disposal-Cost for disposai to the Bergen Gallons 66,007 $ 0.08 $ 5,281
Point STP
3) Additional Operaior Costs-includes daily system check, man-hours 183 $ 55.0� $ 10,065
collecting sampies,etc.(avg.0.5 hrs./day)
4) Electric-includes only the electricity for the treatment kw/hr 12,000 $ 0.15 $ 1,800
system and enciosure
5) Water Quality Samples-Perchiorate Analysis of Raw each 104 . $ 5D:00 $ 5,200
and Treated Water
Maintenance
1� P:C:Mechanic Costs-General maintenance,Brine man-hours 40 $ 70.00 $ 2,800
Pumps,Vaives-test and adjust actuators,Check and
caiibration of differentiat pressure gauges,flow meters,
level controls and switches,etc. ' •
2) Misc,_Pacts and Materials L.S. 1 $ 1,000.00 $ 1,000
• Subtotal: $ 29,116
Administration(10%) $ 2,912
Continqency(10%Z $ 3,203
TOTAI ESTIMATED ANNUA�O&M COSTS: $ 35,230 � I�� S%�`
TOTAL ESTIMATED O&M COSTS PER 1,000 GALLONS TREATED: $ 1.07 / `���I a t L a�
�J�0�
�
Operation 8 Maintenance Treatment Cost Assumptions '
1) Yearly O&M Treatment are based on system operating @ 800 gpm for avg.1.9 hourslday and 365 days/year
for a total of 33 miilion gailons of treated water per year.
2) pN adjustment(Lime)and sodium hypochlorite costs are not included in this cost estimate.
3) Electric costs are provided only for the operation of the Perchlorate removal treatment process,well pump
electric costs are not included.
4) Average Total Treated flow for Old North Road Weli Field= 33,003,300 gailons.
Suffolk County Water Authority-Engineering Dept.
• 7abie 9. Capital and Operation and Maintenance Costs br a Perchlorate Removal Treatment S�stem,
Sunset Drive Well Field,Mattituck,Tov�n of Southold,NewYork
A.CAPITAL COSTS-Based on a 130 gpm Treatment 5ystem
Item Unit Quantity Unit Cost Totai Cost
Structures
1) Exterior Siding,and Roof on Treatme;�t&ystem LS. 1 $30,000 $ 30,000
Enclosure,Complete including ail electric4 heat,
ventilation,insulation,doors,hardware,etc.
2) Concrete Foundation for Treatment System Enclosure L.S. 1 $15,000 $ 15,000
and Brine Tanks,Complete,including ail reinf.,siabs,
eta
• Rerchlorate Removal Svstem
3) 130 gpm Continuous Perchlorate Removal Treatment L.S. 1 $450,000 $ 450,000
System,Complete as manuf.By Basin Water,including .
ali controls,piping,fittings,vaives,prefilters, brine
� pumps,flow meter,Resin,Delivery,etc.
A) lnstallation of Perchiorate Removal Treatment System, L.S. 1 $15,000 $ 15,000
Gomplete,including aIl rigging,assembly,piping,fittings,
eta
5) Brine Tank-and"iNastevirater Collection Tank L.S. 1 $7,000 $ 7,000
Containment,Complete,including=CorttairnnEnf,
Installation,levei controls,aiarms,piping,etc. • •
! 6) Misc.Interconnecting Piping between System,tanks and L.S. 1 $10,000 $ 10,OD0
-Yard Piping,Complete �
Electrical
7) Underground Conduit 8�Control Room Electrical Work, L.S. 1 $15,000 $ 15,000
Complete
Yard Piainq
8) Yard Piping Complete,including all misc.fittings,
Copper,Gaskets,Thrustblocking,Roding,etc.
a. 6-inch diameter L.F. 210 $20 $ 4,200
b. 12-inch diameter L.F. 0 $40 $ _
9) Valves and Hydrants L.S. 0 $0 $ _
10) Labor for Yard Piping Instailation Day 4 $2,700 $ 10,800
Other
11) Misc.Site Work-inciuding Asphalt Paving to Treatment l.S. 1 $25,000 $ 25,000
System,Grading,Topsoil and Seeding Landscaping,
Fencing,etc.
Subtotal: $ 582,000
Engineering(20%): $ 116,400
Contingency(20%): $ 139,680
TOTAL ESTIMATED CAPITAL C05T: $ 838,080 „ �
B. O&M(ANNUAL)CQSTS-Based on 6 004 250 allons per year treated
. '�� " .�� 666
Suffoik County Water Authority-Engineering Dept. �
Table 9. Capital and Operation and Maintenance Costs br a Perchlorate Removai Treatment S�Stem,
Sunset Drive Well Field,Mattituck,To�nn of Southoid,NewYork
Item Unit Quantity Unit Cost Total Cost
Operational
1) Sodium Chloride ton 7 $ 75.00 $ 540
2) Wastewater Disposai-Cost for disposal to the Bergen Gallons 13,856 $ 0.08 $ 1,108
Point STP
3) Additional Operator Costs-includes daily system check, man-hours 183 $ 55.00 $ 10,065
collecting samples,etc. (avg.0.5 hrs./day)
4) Electric-inciudes only the electricity for the treatment kw/hr 5,000 $ 0.15 $ 750
-system and enclosure
5) Water Quality Samples-Perchlorate Analysis of Raw each 104 $ 50.00 $ 5,200
and Treated Water
-�Maintenance
1) P.C.Mechanic Costs-General maintenance,Brine man-hours 40 $ 70.00 $ 2,800
f�umps,Valves-test and adjust actuators,Check and
calibration of differentiai pressure gauges,flow meters,
Ievel controis and switches,etc.
2) Misc:-Partsand Materiais �.S. 1 $ 1,000.00 $ 1,DOA
Subtotai: $ 21,464
Administration(10%) $ 2,146
Contingency(10%): $ 2,361
TOTAL ESTIMATED ANNUAL O&M COSTS: $ 25,971 --r S r}����j"= %�t'I �:1
TOTAL ESTIMATED O&M COSTS PER 1,000 GAL�ONS TREATED: $ 4.33
��?t�.�0
Operation&Mafntenance Treatment Cost Assumptions
1) Yearfy 08�M Treatment are based on system operating @ 130 gpm for avg.2.1 hours/day and 365 dayslyear
for a total of 6 million gallons of treated water per year.
2) pH adjustment(Lime)and sodium hypochlorite costs are not included in this cost estimate.
3) Eleciric costs are provided only for the operation of the Perchiorate removai treatment process,weli pump
electric costs are not included.
4) Average Total Treated flow for Sunset Drive Weil Field= 6,004,250 galions.
Suffolk County Water Authority-Engineering Dept. �
Table 10. Capital and Operation and Maintenance.Costs br a Perchiorate Removal Treatment S�stem,Kennys
Road Weii Field,Southold,Tovu�of Southoid,NewYork
A.CAPITAL COSTS-Based on a 500 gpm Treatment Svstem
Item Unit Quantity Unit Cost Total Cost
Structures
1) Exterior Siding and Roof on Treatment System L.S. 1 $45;000 $- -?5;�00
Enotosure,Compiete including aA electric,heat,
ventilation,insulation,doors,hardware,etc.
2) Concrete Foundation for Treatment System Enclosure L.S. 1 $20,OOD $ 20,000
and Brine Tanks,Complete,including all reinf.,slabs, .
etc.
P.erchlorate Removal Svstem
3) 500 gpm Continuous Perchiorate Removal Treatment L.S. 1 $775,000 $ 775,000
System,Complete as manuf.By Basin Water,inciuding
all controls,piping,fittings,vaives,prefiiters, brine
pumps,flow meter,Resin,Delivery,etc.
4) Installation of Perchlorate Removal Treatment System, L.S. 1 $25,000 $ 25,000
Complete,including ali rigging,assembiy,piping,fittings,
etc.
5) Brine Tank anci1lVastewaterCoilection Tank- L.S. 1 $15,000 $ 15,OD0
-Gontalnment,Compleie,incluriing�Containment,
• instailation,levei controls,alarms,piping,etc.
� 6) -,Misc.dnterconnecting Piping between System,tanks and L.S. 1 $15,000 $ 15,OOD
Yard Piping,Complete
Electrtcai
7) Underground Conduit&Controi Room Electricai Work, L.S. 1 $25,000 $ 25,000
Complete
Yard Pioina
8) Yard Piping Compiete,Inciuding all misc.fittings,
Copper,Gaskets,Thrustbiocking,Roding,etc.
a. 6-inch diameter L.F. 305 $20 $ 6,100
b. 12-inch diameter L.F. 0 $40 $ _
9) Vaives and Hydrants L.S. 1 . $5,000 $ 5,000
10) Labor for Yard Piping Installation Day 7 $2,700 $ 18,900
Other
11) Misc.Site Work-inciuding Asphalt Paving to Treatment L.S. 1 $40,000 $ 40,000
System,Grading,Topsoil and Seeding Landscaping,
Fencing,etc.
Subtotal: $ 990,00�
Engineering(20°/a): $ 198,000
Contingency(20%): $ 237,600
TOTAL ESTIMATED CAPITAL COST: $ 1,425,600 ; r,� ;
i
B. O&M(ANNUAL)COSTS-Based on 150 380 000 qallons per year treated �'�,
I� ���z�
Item Unit Quantity Unit Cost Total Cost
Operational
1) Sodium Ghioride ton 180 $ 75.00 $ 13,534
2) Wastewater Disposal-Cost for disposal to the Bergen Gailons 300,760 $ 0.08 $ 24,061
Point STP �
3) Additional Operator Costs-includes daily system check, man-hours 183 $ 55.00 $ 10,065
collecting samples,etc.(avg.�:5hrs./day)
4) Electric-includes only the electricity for the treatment kw/hr 10,000 $ 0.15 $ 1,500
system and enclosure
5) Water Quality Sampies-Perchiorate Analysis of Raw each 104 $ 50.00 $ 5,200
and Treated Water
Maintenance
1) P.C.Mechanic Costs-General maintenance,Brine man-hours 40 $ 70.00 $ 2,8D0
Pumps,Valves-test and adjust actuators,Check and
calibration of differential pressure gauges,flow meters,
level controis and switches,etc.
2) Misc.Parts and Materiais L.S. 1 $ 1,000.00 $ 1,000
Subtotal: $ 58,160
Administration{10%) $ 5;848-
Contingency(10%): $ 6,398
TOTA�ESTIMATED ANNUAL O&M COSTS: $ 70,374 '+ ,'� !7�--
TOTAL ESTIMATED O&M COSTS PER 1,000 GALLONS TREATED: $ 0.47 /�� /I,'���
I�l�
Operation&Mafntenance Treatment Cost Assumptions
1) Yearly O&M Treatment are based on system operating @ 500 gpm for avg.13.7 hourslday and 365 days/year for a
total of 150.38 million gailons of treated water per year.
2) pH adjustment(l.ime)and sodium hypochiorite costs are not included in this cost estimate.
3) Electric costs are provided only for the operation of the Perchlorate removal treatment process,weil pump electric
costs are not included. �
4) Average Yeariy Total Treated flow for Kenny's Road Well Field= 150,380,000 gailons.
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Appendix 10
Map of Potential Water Main Routes
Flanders to Lauxel �
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Appendix 11
Riverhead Water District
Distribution System Evaluation &
Hydraulic Model
�I �
I
�l .
RIVE �.A�D �'A'I'lEl2. I)IS'Tl�;IC'T
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'I�I�'T'�.I�TJ'TIOI�T ��'S'TE�I EVA.I.U.�.�'ICJ�
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�I,Y"DR.AIJI,I� MC.�I�EI.
I
' .
I321�I P12C)J�CT' I�TOe: 1�� 02-63
� 1VVl[Al2.�I� 2003
��o� P
�10LZMACHER, McLENDON & MURRELL, P,C. Engineers • Architects o Scientists e Planners • Surveyors
575 Broad Mollow Road
Meivilie, New York 11747-5076
. V .�,. .r�. ST �
S���o�,K COVN�'Y, N��v '�t��;�
DIS'I'I�.IF3�C7'I'IOI�T SYS�I'E�i E�IAL�.7ATION
&. �
I�t�'D�tAIJI,IC MCJI�EL.
I32IVI P12.�J7ECT l�T�.: �WD 02-63
.
MAlaC]H[ 2003
��OU P
A"AC�1..ZMJ�lCFIEI�� IVICL..ENL�C�I� �c IV�IJRRELL, Pe�•
CONSULTING ENGINEERS o ARCHITECTS • PLANNERS m SCIENTISTS • SURVEYORS
MELVILLE,NY TOTOWA,NJ
\ __�O�� . ACEC MEMBER
�-.•� � .�� SIJPPGRTiNN ENG NEER NG
Holzmacher, McLendon�Murrell,P.C. s H2Ni Associates,Inc.
MarCh 31,2003 H2M Labs, Inc. s H2M Construction Management,Inc.
575 Broad Hollow Road, Melville, New York 11747
Supervisor Robert F. Kozakiewicz (631)756-8000, Fax:(631)694-4122
Town of Riverhead e-mail:n2m@h2m.corn
200 Howell Avenue web:www.h2m.com
Riverhead, New York- i 1901
Re: Riverhead Water District
Distribution System Evaluation and Hydraulic Model
-H2M Project No.: RDWD 02-63
Dear Supervisor Kozakiewicz :
Enclosed please find a copy .of the engineering report entitled "Riverhead Water District —
Distribution Systern Eva[uation and Hydraulic Model", dated March 2003.
This study was authorized by the Town Board to provide the Riverhead Water District with a
planning and operational too) for the evaluation of the water transrnission and distribution system.
I'�tow,that the:model ha�=�een-com�iled,_i�i�vill be used by the.Distr.icr when evaluating=the ir,�pact of
additional developments within the Town/District. It will also be utilized for determining the most
effective locations for future well sites, storage tanks and transmission mains.
This study also evaluates the District's capability and potential irnpacts of supplying water to the
Suffolk County Water Authority at the Southold town line. _
� Should you have any questions or comments, please contact this office.
Very truly yours,
� ZM H� c ENDON & MURRELL, P.C. ��
r � .- ' �
Innis M. elleher, P.E.
� DMK:sIp
Enclosure
� cc: Councilman James Lull
Councilman Edward Densieski
Councilwoman Barbara Blass
Councilwoman Rose Sanders
( Supt. Gary Pendzick
Barbara Grattan, Town Clerk
Richard Ehlers, Esq.
p:Udwd\0263Ueport�nside cover letter.doc
E N G I N E E R S \ A R C H I T E C T S ♦ S C I E N T i S T S
P LANNERS ► CONSTRUC TI ON MANAGERS ► S (JR VEYORS
GI�OU P
RIVERHEAi� WAT�R DISTRICT
DISTRIBUTION SYSTEM EVALUATION
&
HYDRAULIC MODEL
HZM P����C'� NO.: �VV'�+ 02-63
MARCIi 2003
PAGE
1.0 INTRODUCTION 1-1
2.0 EXISTING RIVERHEAD WATER DISTRICT OVERVIEW 2-1 •
3.0 DESCR`II'TION OF ANALYSIS 3-1
4.0 RNERHEAD DISTRIBUTION SYSTEM
Y-.I Overview 4-1
4.2 Fire Flow Scenarios 4-3
5.0 SVPPLY TO TOWN OF SOUTHOLD
5.1 Interconnection at town line 5-1
5.2 New SCWA Supply Connection 5-4
5.3 New SCWA Supply Connection with Dedicated RDWD Main 5-6
5.4 New Supply Well in Eastern Riverhead 5-6
5.5 Multiple Interconnections at town line 5-7
LIST OF TABLES
TABLE 3-1 Well Facilities
TABLE 3-2 Water Storage Tank Facilities
i
Gf�OUP
LIST OF TABLES (CONT'D)
TABLE 3-3 Booster Pump Facilities
TABLE 4-1 Low Pressure Readings (Wading River)
TABLES 4-2 & 4-3 Comparison of Fire Flow Scenarios
T.ABLE 5-1 & 5-l.A Interconnection at Peconic Bay Boulevard
TABLE 5-2
Interconnection at Route 25
TABLE 5-3 Interconnection at Sound Avenue
TABLE 5-4 Dedicated Hubbard Avenue Transmission Main
TABLE 5-5 New Well Facility( Tuthills Lane)
' TABLE 5-6 New Well Facility�LIL+CO Fire Well)
TABLE 5-7 Multiple Zonel Interconnections
� .
TABLE 5-8 Separate Zone 1 &Zone 2 Interconnections
'
ILIST OF EXHIBITS
IEXHIBIT I Hydraulic Model Network Schematic
�
ii
GI�OUP
It�VER.�IEAD WATE][� DISTRIC�'
WATER ]DISTR.IBUTION SYSTEM EVALUATION
& H�R�i.U�..IC MODEI,
I32M PROJECT N�.: �WD 02-63
MARCH 2O03
1.0 INTRODUCTION
Holzmacher, McLendon & Murrell, P.C. (H2M) was authorized by the Town of
Riverhead (Town) to evaluate the current water distribution system of the Riverhead Water
District -(IDistrict). Although the District normally has no difficulty maintaining adequate
pressures and flows throughout the entire Water District, cenain peak summer days have created
low pressure situations in a fe�sections-��i own, most notably-tlre-are��s of new development i-n-
Wading River and Baiting Hollow.
The District is currently in the process of constructing an additional supply well in the
Galverton area-(Well No. 11-1) and is in the earlyplanning stages of constructing an second well
at the same site (Well No. 11-2). Also, the District has almost completed the upgrading of the
existing well pumps at the former Grumman site in Calverton (Well Nos. 12-1 & 12-2) to
increase the overall output of both welis at that particular site. This additional capacity will be
sufficient to assist the District in meeting the present needs of the District. However, with
proposed development continuing throughout the Town, this evaluation and model can determine
the effects that these developments tivill have on the existing system.
During last year's summer pumping season, the District had some difficulty maintaining
adequate water supply and pressure, most notably in its Zone 2 high pressure zone. To help
compensate for the limited water supply and pressure, the District. purchases water from the
Suffolk County Water Authority (SCWA) through two interconnections located at the
Brookhaven Town line. This water is supplied to the District on an as needed basis and is
typically utilized during off-peak hours to fill the existing water storage facilities. It is the goal
1-1
G(?OUP
of the District that the additional supply wells and proposed improvernents at Plants 11 and 12
will eliminate the dependency on the interconnections with SCWA in the Wading River ar�ea.
� As part of the evaluation, a series of improvements were analyzed including the addition of
transmission main at various points of the District and the modifcation of existing well and
storage facilities. In order to evaluate the water distribution system, H2M has developed a
computerized hydraulic rnodel of the District's water supply and distribution system. This
hydraulic inodel is a powerful infrastructure management tool that can be used in the design,
' planning and operation of water supply and distribution systems. Specifically, the model can be
used to simulate various conditions and modifications to a water supply and distribution system. .
�' The-results of the-simulations can then be used to evaluate the effectiveness of implernenting the
modifications withaut actually constructing the modifications. In this study, H2M provides a
� brief o�erview of the District's �water supply-and disi:ibution s_ystem, describes-the hydrauli�
model, presents the results of various scenarios and analyzes the model results relative to each
I�. other.
� The report also provides an evaluation and recommendations to the Town and Districf in
response to the Suffolk County Water Authority (SCWA) request for water From the Riverhead
fWater District distribution system at various points along the Southald Town line. These
recommendations take into account the potential effects on the existing distribution system and
Ithe Riverhead consumers at varying water flow rates to Southold.
I
(
1-2
Gf�.OUP
2.0 EXISTING RIVERHEAI3 WATER DISTRICT
The Riverhead Water District is a publicly owned and operated Water District
administered directly by the Riverhead Town Board. The District has expanded significantly
over the past 15 years and now supplies water service to approximately 10,500 services
throughout most of the Town of Riverhead, extending from Wading River to Laurel. With the
exception of some areas in Calverton, there are few large areas of the Town that do not have
public water. Several smaller areas still exist, but unless there is a driving need to extend the
public water service (contaminated individual wells or new development), the cost of installing
the water mains becomes rather expensive.
The existing capital facilities of the Riverhead Water District consist of eleven (11) wells
and pumping-stations, two (2) elevated steel storage tank-s, two=("?') steel storage-standpipes, one
(1) booster stations with three pumps and one (1) ground storage tank with booster pumps. These
facilities are located at twelve (12) plant sites throughout the District. Water is conveyed
throughout the District by a system of transmission and distribution mains from the wells and
tanks to the various consumers and to a network of fire hydrants located throughout the system.
The District is also currently in the process of planning and constructing two additional wells and
pump facilities along Middle Country Road (Rte. 25) in Calverton (Plant No. 11).
The District maintains a high (Zone 2) and low (Zone 1) pressure zone. In addition, a
third, small hi�her pressure zone (Zone 3) �vas created in the Wading River area.
Zone 1 is supplied water from a total of seven (7) �vell stations located at Plant Nos. 1, 2,
3, 4 and 5 and contains two (2) elevated storage tanks, a 0.75 million gallon tank at Plant 3 -
Route 58 and a 0.15 million gallon tank at Plant 1 — Pulaski Street. The low zone is located at
the central and southeasterly portion of the District and includes the Riverhead Business District,
the Middle Road area, Aquebogue and Jamesport.
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Zone 2 is supplied water from four (4) wells located at Plant Nos. 7 and 12 and three (3)
booster pumps at Plant 6 — Osbom Avenue. The booster pumping station contains two electric-
driven pumps at 750 GPM each and one automatic start engine driven pump at 1,000-1,200
GPM. The station boosts the pressure of water from the low zone by 4S psi to supply the high
zone and the area north of Plant No. 6. The booster station is used to supplement the water from
Well Nos. 7-2, 7-3, 12-1 and 12-2 to the high zone. Zone 2 also contains two (2) storage.tanks,
a 1.0 million gallon standpipe at Plant 8 — Baiting Hollow and a 0.75 standpipe at Plant 9 —
Wading River. Zone 2 consists of the areas located in Wading River, Calverton, Bating Hollow
' and areas north of Sound Avenue: Over the past 10 years, the high zone has grown from a small
portion of the District to an area that represents approximately two-thirds of the District's
� demands. To meet these growing needs the District is in the process of constructing an
additional well at Plant 11- Middle Country Road and is in the early stages of planning a second
� well at the same site.
I( A small booster pump system was constructed at Plant 9 - Wading River to increase the
pressure from Zone 2 to Zone 3. Zone 3 is located in the northeast part of Wading River and
� contains approximately eighty homes. .
i
; An additional 1.5 million gallon ground storage tank is located at Plant 10 — Northville.
When first constructed, Plant 10 was meant to serve as a storage tank for Zone 1 water that floats
on Zone 1 pressure. Due to the increased demands within Zone 2 over the past few years, Plant
10 is currently storing water taken from Zone 1 and by means of t�vo (2) booster pumps feeding
2one 2 on a regular basis. Therefore, the tank cannot float on Zone 1 pressure.
The water distribution system made of the varying sized �vater main from 2" to 24" in
diameter constructed of mostly cast iron or ductile iron pipe. It also includes some older small
quantities of asbestos cement and PVC mains. Most of the small piping (less than 6 inches),
(some 2.0 miles of existing small plastic (PVC) piping, 4 inches and smaller), is in the Reeves
Park area. Since 1965, all iron mains installed have been cement lined cast iron or cement lined
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ductile iron. The District currently maintains a total of 1,128,788 feet (213.7 miles) of water
main within the distribution system.
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;
3.0 DESCRIPTION OF ANALYSIS
� As discussed, H2M developed a computerized hydraulic model to evaluate the Riverhead
Water District distribution system. The hydraulic model was developed to form-�n accurate
� representation of the District's water supply and distribution system. The model was then used
to simulate various modifications to the District's water supply and distribution system and to
� predict pressures and operating conditions, and. the corresponding impacts of the various
modifications.
(
The computerized hydraulic model was developed in conjunction with a District-wide,
( PC-based, Geographic Information System (GIS). The basemap for the GIS, which includes the
District's existing water mains, valves and hydrants, was primarily developed from the District's
Irecord maps. In=sections of the Distret-where record maps were not availiable, the missibg areas
were surveyed and the information was included as a part.of the base map.
4
Upon completion of the GIS base map, existing water main data was exported into the
AutoCADD-based hydraulic modeling program called H2ONET Analyzer 3.1. Standard
practice in distribution system modeling is not to include every water main in a system but to
import critical water mains into the hydraulic modelin� program.
Not all of the water mains were exported to the hydraulic modeling program due to the
limited number of links pennitted to be used in the program. Links include pumps and sections
of pipe from one pipe intersection to another. The version of H2ONET Analyzer used by H2M
permitted a maximum of 1000 links. Based on this version, a skeltonized form of the
distribution system was developed and rnodeled. In skeletonization, a commonly accepted water
system modeling practice, only the primary transmission and distribution system mains are
included in the model.
Once the selected water mains were exported to the model, the various wells, pumps and
tanks were added to the hydraulic model. The graphical representation of the hydraulic model,
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called the network schematic, depicts the District's network components including water mains,
wells, pumps and tanks and is shown in Exhibit I of this report. The network schematic shows
the location and connectivity of the various network components.
There are two primary elements to a network schematic—nodes and links. Nodes include
wells, tanks and junctions (the intersection of two or more pipes). For example, Nodes 7044 and
1092 in Exhibit I represent the District's Well 4-2 and a point on the outlet pipe from the plant
site; respectively. Links connect two nodes and include pipes and pumps. For exarnple, the link
between Node 7044 and 1092 represents the vertical turbine pump of We114-2.
The nodes and links of the network schematic have data associated with them. This data
is called modeling attributes. Modeling attributes include well pumping water level, tank height,
junctio_n__elevati.on; pipe diametei and pump capacity tc name just a few. Many of the modeling
attributes used in the hydraulic model are tabulated in Tables 3-1 through 3-3. These tables
include data on the District's well facilities, water storage tank facilities and booster pump
facilities.
Demand data are another type of modeling attribute. Water use demands in a hydraulic
model are assigned to junctions. In hydraulic modeling, a base demand is assigned to each
junction. In this model, an average day base demand and a peak day base demand were utilized.
The average day base demand was based on the year 2002 actual data. The total purnpage for
the year �vas approximately 2.2348 billion gallons. According to District records, Zone 2
typically consumes approximately two-thirds of the District water. Therefore, the demand of
Zone 2 for the year 2002 was calculated as 4.04 million gallons per day (MGD). The demand
was assumed be equally distributed among the 150 nodes of Zone 2 and the base demand was
then calculated as 18.7 gpm/node. Conversely, the demands for Zone 1 were calculated as 2.08
MGD or 5.8 gpm/node.
The peak day base demand was based on the demands of July 18, 2002, the peak day for
the calendar year 2002. The total pumpage on July 18, 2002 was 16.44 rnillion gallons. Using
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the same criteria set forth when determining average day demands the peak day demands for
Zone 2 were calculated at 10.84 MGD or 48 gpm/node. For Zone 1 the demands were calculated
as 5.6Q MGD ar 15 gpm/node.
Upon completion of the network schematic and assignment of the various modeling
attributes, the network sirnulator was run using two simulations, a steady state simulation and a
24 hour extended period simulation. The H2ONET network simulator is based on the rigorous
Modified Hybrid Method (MHM) for hydraulic analysis. The network simulator solved a set of
' simultaneous equations to a mathematicai accuracy of 0.001 in order to determine the pressure,
flow and head at each node and link for each hydraulic time-step. For the majority of the
� -scenarios evaluated in this report, a steady state simulation was utilized. When an extended
period simulation was performed, 15 minute hydraulic tinrie-steps were used. Therefore, the .
� pressure, flow and head_,at ea.ch node _and link were predicted eve-ry-fifteen minutes (for each
hydraulic time-step) for a 24 hour period. The Hazen Williams equation �vas used in the.model
�� to calculate head loss in the distribution system.
( In order to verify the accuracy of the hydraulic madel, the results of the model were
compared to field and historical data. Field data was available in the form of pressure tests
� performed on March 29, 2002 and hydrant flow tests performed at various locations of the
I District over the past year. Historical data was available in the form of historical charts and
� information provided by the District. � These data included information on tank level, pressure,
pump operation and other data pertaining to the water.supply and distributioi� system. When
model results did not conform to the historical charts, the nnodel was calibrated in order to more
accurately predict historical results. ln addition, pressures predicted by the model at the variaus
pressure test sites corresponded well with data obtained from the field investigation.
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4.0 DISTRIBUTION SYSTEM •
To evaluate the existing District water distribution system, two base scenarios were
developed. Avera�e Day which_utilizes.the average day demand discussed previously and Peak
Day, which utilizes the peak day demands of July 18, 2002. From these two base scenarios, a
series of sub-scenarios were developed in order to evaluate the effects of fire flow demands,
additional transmission mains and facility modifications would have upon the system.
Scenarios were run utilizing the current attributes of the existing system as outlined on
Table 3-l. To accurately predict future characteristics of the system, certain scenarios were run
with Well No. 11-1 andlor Well No. 11-2 activated. Also, the two well pumps at the Plant 12 —
Grumman site are slated to be upgraded this Spring. Scenarios have been run using there
existing capac.�ties-as well as their proposed capacities. Each of the pumps at Plant 12 will be
upgraded to provide 1350 gpm capacity with a head of 355 feet.
An understanding of how the existing system operates is important in understanding the
hydraulic model results. As discussed in Section 2.0, the District is split into two separate
pressure zones with each zone containing its own well and storage facilities. Under cunent
conditions on peak days, the iwo well stations at Plant 12 provide water to both the Wading
River area via Wading River-Manorville Road and the Baiting Hollow area via Route 25. Water
produced at the two well stations at Plant 7 supply water to the Wading River are via Sound
Avenue and Wildwood Road, as well as the North Baiting Hollow area via Sound Avenue and
Edwards Avenue. Plant 7 also transmits water sauth via Fresh Pond Avenue where it
supplements Plant 12 water to meet the demands of South Baiting Hollow. When in operation,
the P]ant 6 and 10 Booster stations take �vater from Zone 1 and push it to the Plant 8 storage
tank. When additional water is needed, the Riverhead Water District obtains water from the
Suffolk County Water Authority from two interconnections located at Meroke Trail and
Dogwood Drive. On a peak day, these interconnections will supply approximately 900,000
gallons per day.
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Within Zone l, on peak days the two well stations at Plant 4 supply the western portion
of Zone l, from Roanoke Avenue to River Road. Water from Plant 12 is also supplied to the
Plant 6 Booster station. The two well stations at Plant 5 supply the eastern portion of the
District including Jamesport and Aquebogue. Plant 5 also feeds the Route 58 storage tank and
areas in downtown Riverhead. Plants 1 & 2, feed the Pulaski Street tank and areas of downtown
Riverhead.
'
With the current upgrades to the pumps at the two Plant 12 wells and the activation of
� Well ll-1 expected by the summer of 2003, the behavior and operation of the system will
change. With the addition of Well 11-1, the majority of the water generated at Plant 12 will feed
, the South Baiting Hollow instead of Wading River. Plant 12 will supplement Plant 11 which
will feed the Wading River area. Plant 7 will still feed both Wading River and North Baiting
� Holio�. However with-th� in�eased pumpage at Plani�s_l 1 and 12,.more water w�ll.be supplied
to the Plant 8 and 9 storage tanks. The Plant 6 and 10 booster pumps will still move water to the •
I' Plant 8 storage tank. When activated, Well 11-1 will supply an additional 1.4 million gallons per
day to the Wading River area. With this additional supply, the two interconnections with SCWA
( will be required only for emergency situations. The only effects the additional pumpage will
have on the existing Zone 1 will be slightly less water pumped through booster stations 6 and 10.
i
, .
The District is currently in the planning stages of constructing Well 11-2 along Middle
Country Road. Although Well 11-2 is not expected to be corripleted until Spring 2004, when on-
line at ��ill provide approximately an additional 500,000 gallons per day to Wading River. With
this additional pumpage, the wells at Plant 12 will not be required to provide water to Wading
River. Therefore, it will provide supply to the proposed Calverton Enterprise Park and the South
Baiting Hollow area. In turn, with the additional pumpage to South Baiting Hollow, more water
generated at the two Plant No. 7 wells will be used to feed the Plant 8 and 9 storage tanks. Plant
6 and 10 will remain as feeds to the Plant 8 storage tank. However, pumpage from the boosters
at Plant 10 will be approximately 75% less.
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As stated previously, certain areas of Wading River experience low pressures during peak
pumping days. These areas are centered around a hill located between North Wading River
Road and North Country Road. The higher pressure zone (Zone 3) is also in this area, however,
all of the areas experiencing low pressures are-just outside Zon�_3 and t_y_pically have_ground
elevations ranging from 1SO to 190 feet above mean sea level. Currently pressure can fall as low
as 38 psi, but with the addition of Well 11-1 to Zone 2, an increase of pressure from two to
eleven psi is observed. Table 4-1 presents a summary of pressure readings in the Wading River
area under current canditions during the peak day, with Well No. 11-1 and with Well Nos. 11-1
and 11-2.
To further increase the pressure at the at the areas of low pressure along Oakwood Road,
the District has two options. The first option would be to upgrade the existing water mains
running 'fro.nx Flan� 7 to Oakwood-Road. 'I°he other option wouid� be to extend the° Zone 3
boundary lines to include these properties along Oakwood Drive, Howard Street, Deane Street,
Faye Street and Shirley Street. The first option would call for the upgrade (increase in main size)
of almost 2 miles of water main including restoration. The second option would involve the
installation of approximately 500 feet of rnain and the installation of two check valves.
Presently, the District recommends that homes with finished floor elevations over 170 feet above
mean sea level install booster pumps on their individual service line. Therefore, any upgrades or
expansions of the system would serve to increase the fire flow capabilities only.
4.1 FIRE FLOW SCENARIOS
The fire flow scenarios were developed to determine the impact of a major fire flow
water demand condition (2000 gpm) at critical points of the District. Three areas were
designated to receive fire flow demands of 2000 gpm including, the former Grumman site, North
Woods Road in Wading River and the Northville area. Fire flow scenarios were run utilizing
both the average day demands and the peak day demands.
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For the three fire flow scenarios �ve have focused our analysis to within Zone 2. For each
scenario, we analyzed three junctions—96, 146 and 252 in Zone 2 and 450 in Zone 1, in terms of
how pressure changes at each of the junctions on the peak day demand condition. Junction 96 is
located in the northwest portion of the District along North__C.auntry Road-zt;�s-inter.sect�oxLwith-
Remsen Road. Junction 146 is located at the intersection of Sound Avenue and Osborn Avenue.
Junction 252 is along Middle Country Road, east of the former Grumman site at Edwards
:� Avenue. Junction 450 is located outside of town along County Raad 58 at its intersection with
Mill Road. �
� .
By assigning 2000 gpm fire flow scenarios to each of the three locations described above,
� an accurate evaluation of the effects on the existing system were determined with all well sites
operatin�with peak day demand conditions. To further evaluate i�vhether the system could handle
� -significant fire-flows,_scenario-'=s were run with-the two tivel"1s�_Plant 7 closed and with the two
wells at Plant 12 closed. These results were compared to how the system would currently handle �
I� a 2000 gpm fire flow, with no Plant 11 wells and the two (2) Plant 12 wells designed to provide a
1000 gpm flow. Pressure results for the three fire flow scenario's in questian are shown on
� Table 4-2 and 4-3.
( As shown on Table 4-2, the current system could adequately provide the proper fire flow
I to a 2000 gpm demand. However, when one of the larger well sites is taken off line, significant
pressure drops occur and in some cases pressure readings can fall to as low as 40 psi. With the
addition of well 11-1 and the upgrades to well pumps 12-1 and 12-2, the system will have no
( adverse effects supporting a fire flow demand of 2000 gpm anywhere in Zone 2. When a larger
I well site such as Plant 7 or Plant 12, tivere off line, larger pressure drops were record.ed.
However the system is still more than adequate to support the expected fire flow demands.
IA 2000 gpm fire flow demand was also assigned to Junction 452 located at the
( intersection of Roanoke Avenue and Pulaski Street in Zone l. Plant 5 — Middle Road, which
contains wells 5-1 and 5-2 was also taken off line during the fire flow scenario to represent the
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worst case situation. No significant pressure drops were recorded within Zone 1 as a result of the
fire flow demand except at the junction where the demand was assigned.
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5.0 SUPPLY OF WATER TO TOWN CDF S(3UTHOLI)
The Suffolk County Water Authority has approached the Riverhead Water DistrictJTown
of Riverhead to request if additional water quantities can be supplied by the Riverhead Water
District at the Southold Town line. The Riverhead Water District currently maintains a 12-inch
diameter interconnection at Peconic Bay Boulevard with the SCWA. To date, only srnall
quantities of water are pumped into Southold from Riverhead. However, due to potential water
quality issues with several public supply wells within Southold, the SCWA is evaluating its
options for replacing lost well capacity to be able to meet the current and future water demands
within the Town of Southold. Several options include purchasing water from the Riverhead
� Water District. The SCWA has agreed to pay for a portion of this distribution system
evaluation/hydraulic model with the understanding that several flow scenarios will be run to
' deternnine the maximum water flow rates that can__1z� p�c:�i�e�t;,-the SCWA without-any-adverse
effects on the Riverhead Water District.
�
One option that we have evaluated is to purchase water directly from the Riverhead
� Water District through a set of interconnections located at the Southold Town Line. This option
was evaluated assuming the existing Riverhead Water District distribution system remains in
� place with minor modifications to extend the Riverhead mains to the tawn line.
( A second option for the SCWA is to construct additional supply wells within the Towns
I of Brookhaven and/or Southampton and install lar�e transmission mains to rnove the watsr to
Southold. To get the water to Southold, t�vo alternatives were presented. The first wouid be for
the SCWA to install transmission main frorn its existing well fields to the Town of Riverhead
where they would connect to existing Riverhead Water District mains and use these mains for
transmission to Southold. There are three areas of existing water mains in which the SCWA
could connect to within the Riverhead Water District; Hubbard Lane, Route 25 or Sound
Avenue. The Riverhead Water District currently maintains 12-inch main on all three of these
roadways. The second alternative would be to install SCWA through the Town of Riverhead
without connections to the Riverhead distribution system. This distribution system evaluation
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G(�O U P
does not examine the option of the SCWA installing new water main through the Town of
Riverhead, but it does evaluate an alternative where an existing Riverhead District water main on
Hubbard Avenue and Peconic Bay Boulevard be turned over to the SCWA.
As part of this study, we have evaluated the ability of the Riverhead Water District to
provide water to the SCWA via the options presented above. The purpose of the evaluation is to
determine how much water the Riverhead Water District can supply to the SCWA without
negatively affected the existing distribution system and the Riverhead Water District consurners.
5.1 —INTERCONNECTION AT TOWN LINE
In order to deterrnine the amount of water the Riverhead Water District could supply the
SC�IA, a series of scenarios were performed within the fiy�raul;c model. The first se� of
scenarios assumed the additional water would be provided from Zone 1 (low zone) to
interconnections at Peconic Bay Boulevard, Route 25 or Sound Avenue. In order to properly
evaluate the potential impact of providing water to SCWA, the flow scenarios were run under the �
peak day demands and the largest well site (Plant Nos. 5-1 and 5-2) was assumed to be out of
service due to mechanical or water quality issues. The scenarios were run in stages with a
SCWA demand of 5000 gpm independently assigned to junctions at the town line at the locations
stated. The same scenarios were run with the SCWA demand reduced at each point to 4000
gpm, 3000 gpm, 2500 gpm, 2000 gpm and 1500 gpm.
For all three locations at the town line, when a demand of 2500 gpm or greater was
assigned significant drops in pressure were shown across the entire eastern portion of the low
zone, most notably at the areas of higher elevation such as Sound Avenue and Northville.
Pressure readings were shown to fall well below the recommended minimum working pressure
of 35 psi as stated by Suffolk County Health Department and the Ten States Water Quality
Standards (Section 8.1.1). In some cases, pressure readings registered below 0 which indicates
the inability of the system to meet the demands required. See Tables 5-1 through 5-3 for results.
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�
�
When the demand at the Town line was decreased to 2000 gpm, the resulting pressure
� readings across the easterly portion of the Zone 1 ranged from 40 psi to 50 psi, except at the
highest points of Zone 1 along Sound Avenue at from West Lane fo Herricks Lane. At these
Ihigh points pressure readings fell to as low as 15 psi when the 2000 gpm demand was placed on
Sound Avenue and 2.5 psi when assigned to Peconic Bay Boulevard.
I
The demand at the town line was further reduced to 1500 psi and the pressure at the high
points along Sound Avenue were observed to increase. However when the 1500 gpm demand
was assigned to Sound Avenue pressure readings still were as low as 25 psi at Herricks Lane.
In addition to the low pressure readings obtained when any demand is applied along
Soun�-Avenue at the town�line, flow r-eversals are also observed on the north=s�auth arteries to the.
east. Typically, under normal conditions, water within Zone 1 is produced at the plant sites
�. located within or on the outskirts of the Riverhead Business District and along Middle Road and
travels north on Northville Turnpike and then east, with flow on all of the north-south links from
West Lane to Herricks Lane being from north to south. When a large demand is placed in the
northeasterly portion of the District, flow within these links reverses and goes south to north.
The north-south links south of Route 25 act in a similar fashion including South Jamesport
Avenue, Washington Avenue and Edgar Lane. Customers �vho are serviced from these roads
both north and south of Route 25 may experience an initial change in their water quality
including rusty water. However, no effects �vould be expected to be considered long term
problems.
The same flow scenarios were run without removing a �.vell field (Plant 5-1 and S-2) from
service. As shown on Table 5-l.A, significant pressure drops occur above 1500 gpm. Keeping
Plant 5 in service adds approximately 2 to 6 psi across the system.
Another alternative the Riverhead Water District has for providing water to the SCWA
wauld be to add a new interconnection from Zone 2 (high zone) of the Riverhead Water District.
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� �o� �
In order for the District to use Zone 2 water, a few modifications would have to be made to the
existing system. Plant 10 - Northville would have to remain a Zone 1 to Zone 2 feed, the
existing 12-inch main on Sound Avenue would be transferred to Zone 2 from Pier Avenue to the
Southo-ld-Town line and valves or..-_��und Avenue at Pier Avenue,�anor Lane and Herricks
Lane would have to be closed. By closing these valves dead-end mains of considerable length
would be created on both Manor and Herricks Lane. As shown on Table 5-3, similar to results
obtained with a Zone 1 feed, considerably low pressures were observed across the northeasterly
portion of the District when demand was increased over 1500 gpm. This option of prouiding a
Zone 2 interconnection on Sound Avenue would provide the least impact on the Riverhead
Water District pressures while supplying 1500 gpm to SCWA.
5.2 —NEW SCWA SUPPLY CONNECTIONS
The SCWA is presently investigating options of constructing new well sites in the Towns
of Broakhaven and Southampton and using a large transmission main to move the water to
Riverhead Town where they con.nect into the existing water system. The three most viable
locations to connect to the existing system would be along County Road 105 at its intersection
with Hubbard Lane, Route 25 or Sound avenue. The District currently maintains a 12-inch
diameter water main at both the Route 25 and Sound Avenue location which extend to the
Southold Town line. At Hubbard Avenue, the District currently maintains an_S-inch main which
increases to a 12-inch approximately 1500 feet east of County Road 105 at Shade Tree Lane.
From this point a 12-inch water main runs along Hubbard Lane and Peconic Bay Boulevard to
the Southoid Town Line.
A series of scenarios were performed, utilizing the hydraulic model, assuming a constant
alternate supply of water from the SCWA at 100 psi as shown on Table 5.4. The supply was
first applied to a point located on Hubbard Avenue near its intersection with Shade Tree Lane
where there is currently a 12-inch water main. Demands were assigned to at the Town line to
represent SCWA requirements. With the additional supply an increase of static pressure was
observed frorn 5 psi downtown, 15 psi along Riverside Drive and 20 psi near the point of
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connection and points east. Using the existing distribution system, a demand of 2000 �pm could
be supplied at the Town line without static pressure falling below 40 psi at any point within the
District. A demand of 2500 gpm can be supplied to SCWA, however points along Sound
Avenue (partictrlar-iy at Herricks Lane) and Pecmic 3ay BoulevauL fall to 3S__p�;-�u:�d belov�. If
the existing 12-inch water main along Peconic Bay Boulevard from South Jarnesport Avenue to
the Southold Town line, approximately 7000 feet, was upgraded to 16-inch diameter, the 2500
gpm demand could be provided without working pressure along Sound Avenue maintaining 40
psi. With the upgraded mains, a demand of 3000 gpm could be met, however pressure along
Sound Avenue would fall to 35 psi or below. Any demands greater than 3000 gpm will severely
reduce the pressure of the existing system in the area of Sound Avenue and Herricks Lane.
The SCWA supply was also applied to a point along State Route 25 near its intersection
with Cai!nty Road- 1-05. Currentl_y, the District maintains a 12-inch diameter water main along
Route 25 from C.R. 58 across C.R. 105 to the Southold Town line. Again it was assumed that
� the SCWA would provic�e an unlimited amount of water at 100 psi to the District. An increase of
10 psi was observed along Sound Avenue, 15 psi in the southeasterly portion of the District and
20 psi near the point of connection was observed with the additional supply. The SCWA
demand was assigned along Route 25 at the Southold Town line. Using the existing distribution
systern, a demand of 2000 gpm could be met without working pressure falling below 40 psi at
any point of the District. The District could satisfy a 2500 gpm demand if the existing 12-inch
diameter water rnain along Route 25 from Herricks Lane to the' Southold Town line,
approximately 3�00 feet, was upgraded to 16-inch diameter. By extending the overall length of
the upgrade to include the existing piping along Route 25 from South Jamesport Avenue to the
town ]ine, approximately 7300 feet, a demand of 3000 gpm could be ir►et while keeping adequate
pressure throughout the District.
The third point of connection for SCWA mains was placed at the intersection of
Northville Turnpike and County Roads 105. The same criteria set in the previous two sc�enarios
were assumed again. An increase of 10 psi across the system was observed along Sound
Avenue. Utilizing the existing system, a demand of 1500 gpm could be met without working
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pressure falling below 40 psi at any point of the District and a demand of 2000 gpm could be met
without working pressure falling below 35 psi. A series of upgrades on the existing 12-inch
water main on Sound Avenue were performed, however due to the higher elevations at certain
�oints along_Sound ��enue , a de�and of over 2000 gpm could not be met without reducing the
working pressure of the system to below 35 psi.
A final scenario was run assuming like charac�eristics of the SCWA supply; this time
connecting an existing 12-inch main on Penny's Lane, Zone 2 of the District's distribution
system. Similar to previous scenarios, Zone 2 can provide for a maximum demand of 1500 gpm,
unless the additional point of connection is made to the east of Plant 10 — Northville or an
upgrade in size of existing water mains on Sound Shore Road, Pier Avenue and Sound Avenue is
performed.
S.3 —NEW SCWA CONNECTION WITH DEDICATED RIVERHEAD MAINS
An extended variation to the option presented in Section 5.2 of connecting SCWA mains
to District mains on Hubbard Avenue would be to connect the mains and dedicate the existing
12-inch main on Hubbard Avenue and Peconic Bay Boulevard to the SCWA. By dedicating this
main, the District would be creating short dead-end mains on Shade Tree Lane, Edgar Avenue,
Washington Avenue and South Jamesport Avenue. Transferring this main would also mean that
approximately 800 customers of the Riverhead Water 17istrict would receive water provided by
the Suffolk County Water Authority. As sho�vn on Table 5-4, transferring this main would do
little to increase the amount of water available ta the SCWA at the Town of Southold without
performing significant upgrades to the existing mains.
5.4—NEW SUPPLY WELL IN EASTERN RIVERHEAD �
To help the Riverhead Water District generate more pumpage and in turn supply the
SCWA with more water, the option of adding additional well sites within Zone 1 was
investigated. Two possible locations where the District has already conducted preliminary
5-6
i
2 G f�0 U P
�
' investigations are on Tuthill Lane in Jamesport and at the site of the existing LILCO fire wells
on Mill Lane near its intersection with Main Street.
�
ThP first proposed site, Tuthill L-�:ne was previously investigate� by the District for
Iadditional supply over ten years ago. However, when a test well was installed at the site,
elevated levels of chlorides were detected raising the concern of salt water intrusion. The
� District did not consider this a viable location for a well site. For modeling purposes only, a
scenario was performed placing a well on Tuthill Lane with a pumping capacity of 1400 gpm.
� The demand for Suffolk County Water was assigned ta Route 25 at the Southold Town line.
Based on results shown on Table 5-5, with a new 1400 gpm well on Tuthill Lane the Riverhead
IWater District could provide the SCWA with approximately 2500 gpm without the pressures
within the existing systern falling bel�w 35 psi. As with other scenarios, similar negative results
� are seen when the demand irrcreases to over 2500 gpm.
(� The second proposed well site, Mill Lane is the location of existing LILCO fire wells.
Taking over these wells would require upgrades to the entire facility along with upgrades to the
Iexisting Water District in the surrounding area. As shown on Tab�le 5-6, since this location is
situated at the far western side of Zone l, it would offer little assistance to providing water to the
( SCWA at the Southold Town line. In order for this well to have an impact at the town line,
I transmission mains would have to be installed from the site east through Town and connect to
existing mains on Hubbard Avenue or Route 25 or mains would have to be�installed or upgraded
( north along Mill Road to Middle Road and then east to Route 25. However, even with the
upgrade and/or installation of transmission mains, the District would still encounter a significant
Idrop in presstire when demands greater than 1500 gpm were applied.
5.5 —MULTIPLE INTERCONNECTIONS AT TOWN LINE
� Two final scenarios were run to evaluate the maximum flows to SCWA in Southold
� inciuded the construction of multiple interconnections at the town line. Table 5-7 reflects two
interconnections from Zone 1 (at Route 25 and Peconic bay Boulevard). In placing a demand of
5-7
��a� p .
1000 gpm demand at each for a total of 2000 gpm, pressures dropped significantly throughout
the District. On Table 5-8, a separate interconnection from Zone 1 and Zone 2 produced
significant drops above 2500 gpm combined.
5-8
GI�OUP
TABLE 3-1 �
RIVERHEAD WATER DISTRICT
DISTRIBUTION S�STEM EVALUATION � HYDRAULIC M[ODEL
WELL FACr��'�'I�+S
������� P1U�VI����������:�:�:�:�..:,:.:�:�:.:�:
..�I U
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.,...........................................,,.,.,..,.,..,.,..,......,.....,.,.............,...........,........_...,...,.,.. ...,....,...,.,.....,.....
::;WE]GI�;:. �� �� � �G�2;A:D�;.:;: .. .� :���:: �'..,�'l[�'>:.
.�..,..�...aCATi:QN....::............. ::�:`...:.:.`:���:�:���.><�.���,.�..�;�'.�'.�'.��>::`::::;::,�::.:::.::`:.::�:::<`::;`:.,.:.......';<:.:
:`::.:.:�fiE�:�:�:�>::.:.:.:.:.::«:.:.:.:.:.:?•;:�:�;:�:�:�::�:�;:�:�:�:�:�:�:�:<;�: �: �VI.:S:.L:r :��:x�;::�:�:�>:<�;:�•:•:�:.:;.:.>:.:.�.:�;::::�A:�"'A�I>�'�`;::�:�>:TDi`�>:•:�
•.�.�.�.�.•.�.�,�.�.�.•.�.............:.:.......................................................�,.,...,.,.,...,..)...,..,....,.....,...,._.,...•.�... .. ..
1-1 Pulaski Street 20 ft. 4 ft. 23 ft. 750 GPM 250 ft.
1-3 Pulaski Street 20 ft. 14 ft. 44 ft. 1000 GPM 217 ft.
2-1 Raynor Auenue � 23 ft. 9 ft. 82 ft. 1000 GPM 274 ft.
4-1 Osborn Avenue 35 ft. 10 ft. 45 ft. 1000 GPM 250 ft.
4-2_ �sborn Avenue 35 ft. 1Q f�.. fi0 ft. 1200 GPM 297 ft.
5-1 Middle Road . 20 ft. 7 ft. 57 ft. 12�0 GPM 254 ft..
5-2 Middle Road 20 ft. 7 ft. 38 ft. 1000 GPM 275 ft.
7-2 Fresh Pond Avenue 125 ft. 118 ft. 126 ft. 1200 GPM 370 ft. .
7-3 Fresh Pond Avenue 125 ft. 114 ft. 167 ft. 1200 GPM 384 ft.
11-1 Middle Country Road* 85 ft. 46 ft. 100 ft. 1380 GPM 368 ft.
12-1 Calverton Enterprise Park** 50 ft 15 ft. 49 ft. 1000 GPM 330 ft.
12-2 Calverton Enterprise Park** 50 ft IS ft. 66 ft. 1000 GPM 346 ft.
* -To be placed in service in 2003
** - capacity increased to 1350 gpm per well in 2003
i
G(�OUP
� TABLE 3-2
IRIVERHEAD WATER DISTRICT
IDISTRIBUTION SYSTEM EVALUATTON & HYDRAULIC MODEL
WATER STORA�'E TANK FACx-LiTIES
I .....................,........,.............. ............,..,.,.,...............,.,.,.,....... ......
:;>::�:�Bf3T`T :�l�!1:.:.:.:;;:.>;:.:�:�:��;:�:.:�:.::;:."':.:.:.:...:.:.:.::?::.:.:.;:.`:.:.:.:.:.':.:.:.?:.:
.,...,...
......
::�P�.ANT. . � .. .TYP� OF: ;;<.:.;..;...:..:;�.�.�.�>.�.����:��,:.::.:.>M.IN.:;>:.::.:;:1V�IAX:;:.:.::;:STtJRA�E .
�.•.;.::.LQGATIC.�;N.,.:.:.;..::.:.,:...:.:. •:� ELE�A1'�ON;:.; .. �....:.:..:....... � ;;
�:�:;:;NU:.:.>:.:��:.:.:.:::::.:::::.:::.:.::: FACIi�I'�?Y :�:�:�:���: ':�. :��:�: .:L�vEL,.. LEVE�:,:.;..;.;:C�A;PACIT'Y.�;
' ::(M:S:L:�.:��
' Elevated
1 Pulaski Street Steel ?0 ft. 126 ft. 170 ft. 0.15 MG
3 Route 58 Elevated �� ft. 14� ft. 180 ft. 0.75 MG
Steel
8 Baiting Hollow Standpipe 210 ft. 0 ft. 86 ft. 1.0 MG
9 Wading River Standpipe 220 ft. 0 ft 76 ft. 0.85 MG
Pre-
10 Northville Stressed �;6 ft. 0 ft 34 ft. 1.5 MG
Concrete
Ground
* Min and Max level are measured from the bottom elevation of the tanks.
G (�O U P
TABLE 3-3
RIVERHEAD WATER DISTRICT
DISTRIBUTION SYSTEM EVALUATION & HYIDRAULIC MODEL
,3T OOSTER PUMP FACILITIES
:�:6OO�STER:: :�.�.�;:.:.>:�:.:.:.:;���.:..��:��;�.��:����'�:��������.:;;:.:.:.:.:.:::.>:�::;>.:.PCJIS�IP:.:;:.:.::.:.:.�'�i#1VI:P::.:�
... ... LOCATIOI'�t::::: .... ... .
.:................... .
.�.�.�.;..... . . . .
:.P:IJIVIP:;N:Q.:: . ....:.::.. . �.�.�.� .�.�.�.<�.�.�.<�..�. ......,.: .,CAPACITY .,...TDH �::�
6A Osborn Avenue 600 GPM l6� ft.
6B Osborn Avenue 600 GPM 165 ft.
6C Osborn Avenue 1300 GPM 128 ft.
9A Wading River 300 GPM 87 ft.
9B Wading River 300 GPM 87 ft.
I- l 0A Northvi`1-1-e G�0-GPM l T3 i.
lOB Northville 900 GPM 173 ft.
i
i
TAB�E 4-1
� Low Pressure Readings,Wading River
Peak Day Scenario
�
Pressure(psi)
' Elevation
Location Current Conditions Well 11-1 on-line Well 11-1 &11-2 on-line
(ft)
� Wading River-Manorville Rd.& 93 �� 86 87
North Country Rd.
Farm Road North 185 38 47 4g
� Woodland Drive 150 52 59 60
North Wading River Rd. & 1 z5 63 69 70
� Northside Dr.
North Wading River Rd.8 1�5 41 47 47
Dogwood Lane
IOakwood Road 180 41 43 43
Wiidwood Road 122 6g 72 7Z
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TABLE 5-6
New 1400 gpm Well at Miil Lane & nAain Street
Peak day with demand from SCWA at Town line on Route 25
(Assumes Well sites 5-1 8�5-2 are off-line and Zone 1 feed)
Pressure
Elevation 0 gpn_ 1000 gpm 1500 gpm
Location (ft) (psi) (psi) (psi)
Peconic Bay 8�S.JamespoR �� 70 60 52
Nubbards&Edgar 20 66 55 54
Hubbard&CR 105 20 66 61 57
25&Herricks 30 61 49 39
25&Tuthill ZO 66 57 50
25&Edgar 33 61 53 48
25&Shade Tree 40 50 52 47
Sound&Nerricks 63 4� 36 28
Sourd-«-Pier- 60 48 38 30
Sound&West �5 51 42 36
; Sound&Northviile 60 49 41 36
Northville 100 31 23 17
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