HomeMy WebLinkAbout2010 REPORT
ON THE
WA S TEWA TER S YS TEM
OPERA TION AND MAINTENANCE
FOR THE
FISHERS ISLAND
- SEWER DISTRICT
BY:
MICHAELA. HORNE,~.S.,P..E.
DTC PROJECT NO. 10 189 200
OCTOBER 2010
DIVeRSIFIeD T~CHNOLO~¥ CONSU£ TANT$
HAMD~N, ~ONN~CTI¢UT 0~$~1~
I
I
I
i
I
I
[
I
I
I
I
!
I
I
I
I
I
I
INDEX
Introduction ............................................................................. Page 1
Background ............................................................................ Page 2
System General Description ................................................... Page 2
Maintenance and Operation ................................................... Page 3
~ General ........................................................................ Page 3
I~ Pump Station ............................................................... Page 3
Community Septic System ..................................................... Page 4
Septic Tanks ........................................................................... Page 5
~ Community System Tanks ........................................... Page 5
~ Cinema Tank ............................................................... Page 5
~ Coast Guard Houses Tank .......................................... Page 5
I~ Silver Eel Cove System ............................................... Page 5
Sewage Collection System ..................................................... Page 6
Observations, Conclusions and Recommendations ............... Page 6
~ Conclusions ................................................................. Page 7
I~ Recommendations ....................................................... Page 7 and 8
Enclosure # 1 Maintenance Check List
Enclosure # 2 Discharge Monitoring Report- Field Report, May 27, 2010
Enclosure # 3 Discharge Monitoring Report DEC - June 2, 2010
Enclosure # 4 Operation and Maintenance Field Report - September 23, 2010
I
I
I
I
I
I
I
I
I
I
1
I
I
I
I
I
I
I
I
INTRODUC~ON
This report is written to conform with the requirements which were outlined in Item II
of our contract with the Town of Southold on behalf of the Fishers Island Sewer
District. It includes maintenance evaluations of the Fishers Island sewer district
sewers, the pump station and wet well, the community leaching systems, the
Cinema septic system and the septic system which serves the three residences
which overlook Silver Eel Cove. In addition, the pump station and selected sewers
were reviewed. The pump station and community leach field have been upgraded.
The Community, Silver Eel Cove and Cinema Subsurface Disposal Systems were
inspected and septage, as well as effluent depths, were measured in the septic
tanks and leaching galleries. The Officer's Service Road manhole was again
observed to be clogged. Harold's Construction Company assisted during the field
reviews.
The collection system in the area of Officer's Service Road has been added to the
annual review because of sewer clogging in the sanitary manholes during the past
several years.
The results of the collection system review are enclosed in Enclosure 4 "Operation
and Maintenance Field Report."
The purpose of the field evaluations and this report are to identify operation and
maintenance issues and requirements. It should be noted that due to the age of the
system and corrosion, some major items were replaced. In order to assist the
operator and fulfill a need, a maintenance checklist has been included in this report.
(Reference Enclosure # 1). This checklist is tailored to normal operation and
maintenance requirements.
Although the collection system has functioned well in the past, it will need several
manhole repairs and cleaning to prevent further clogging and backups. It also
needs stormwater removed. Conditions have changed since the smoke testing
program about seventeen years ago that identified catch basins connected in Fox
Lane. The Fox Lane catch basins were removed from the secondary sewer system.
However, additional catch basins are connected in Tyler Lane. Several of the catch
basins were disconnected from the Tyler Lane sewer during construction of the
Community Center Building and site.
The pump station and community leach field was upgraded and six (6) catch basins
have been redirected from the sanitary sewer system by the community center so it
could be connected to the system.
Fishers Island Sawer District
Report on the Wastewater System
Operation and Maintenance
During 2010
Page 1
I
I
I
!
I
I
!
I
I
I
i
I
I
I
I
I
I
I
I
The Building 57 was upgraded to an Architectural use equivalent to one residence.
Several additional sources of stormwater were re-routed to their own treatment
systems.
BACKGROUND
The Fishers Island sewer district includes the area of the west end of Fishers Island,
which was established during World War II as Fort Wright.
Based upon the 1943 Corps of Engineers map of the system, the sewer system
consists of about two miles of vitrified clay pipe, ranging from 6 inches in diameter
to 24 inches. Prior to 1985, a 24-inch diameter outfall sewer extended into Long
Island Sound where raw wastewater was discharged. The map was traced by the
Suffolk County Planning Department during 1964. Another large map was
produced by the Henry Souther Engineering Company during 1975. The title block
was updated by James Sommers, P.E., L.S. Several copies of this map have been
reproduced by DTC and sent to Louisa Evans for the District's file and to Harold's
Construction Co. for their use. The residents, the highway department, the Fishers
Island Water Department and others can obtain utility information from the maps.
During the late 1970's and early 1980's F.I.D.C.O. purchased the Fort Wright area
from the Government, and the New York Department of Environmental
Conservation (N.Y.D.E.C.) issued an order to Southold to eliminate the discharge to
the Sound. A wastewater facilities plan, which included an activated sludge
treatment plant system, was initially proposed. It was concluded that a plant would
result in excessive operation and maintenance. Therefore, the current pump station
and community septic system was developed, designed and constructed in
compliance with the order. The flow of wastewater into Long Island Sound was
eliminated. The system has consistently met N.Y.D.E.C. discharge monitoring
requirements. (See the Discharge Monitoring Report [DMR]). (Reference:
Enclosures #2 and #3).
SYSTEM GENERAL DESCRIPTION
The alternate community septic system scheme was accepted by the N.Y.D.E.C.
This plan, which was implemented during 1985, included installing a pump station
adjacent to and connecting the 24-inch diameter outfall to it via an 8-inch PVC line,
plugging the 24-inch outfall, constructing a large subsurface disposal system near
the airport, constructing another large subsurface disposal system to serve the
Cinema and finally, construction of a subsurface disposal system to serve the three
houses which are on the hill above Silver Eel Cove. The systems were constructed
during 1985. Therefore, they are more than 25 years old. Considering the ages of
Fishers Island Sewer District
Report on the Wastawatar System
Operation and Maintenance
During 2010
Page 2
I
I
I
I
I
I
I
!
I
I
I
I
I
I
I
I
the systems and mechanical/electrical equipment, they have served the residents
well in the past. The system pump station and community leach field were updated
during the summer of 2008. Maintenance of the system has become more
important as the system ages.
MAINTENANCE AND OPERA TION
GENERAL
This section addresses maintenance and operation of the system. The Town of
Southold has contracted Harold's Construction Co. in the past to maintain the
system with consultation and specifications as needed from DTC. Harold's has
operated and maintained the system for years and personnel are familiar with it.
During two field reviews of 2010, Harold Cook and his personnel assisted in
obtaining access to facilities, testing them obtaining measurements and relating
important performance information about the system. In addition, during 2010
Harold's Construction Co. has continued to provide on site services.
The maintenance requirements for the system in order of effort required are: 1)
The pump station and generator, 2) The community leaching field, 3) The sewer
collection system, 4) The Cinema system, and 5) The three Silver Eel Cove
residences system. They will be addressed in the following paragraphs based upon
site visits, numerous telephone conversations and faxes, prior knowledge of the
system, and examination of plans and specifications.
A. Pump Station
The major components of the pump station are the submersible pumps,
the wet-well, the electrical controls, the valve pit including check valves,
isolation plug valves, a pump station by-pass system, and the generator.
The fence, gate, a small spares storage building, grounds and electrical
power distribution equipment are part of the station. In addition, a new
propane tank had been added. The pumps, generator and transfer switch
components have been replaced.
In order to maintain the pump station and order parts, the plans and
specifications are essential.
The key maintenance requirements include continuous observation of the
pumps and wet-well, checking the valves to assure proper seating of the
check valves and operability of the plug valves, monitoring the elapsed
Fishers ts/and Sewer District
Reporf on the Wastewater System
Operation and Maintenance
During 2010
Page 3
I
i
i
I
I
!
I
I
I
I
I
I
I
i
I
I
I
I
I
time meters on the pumps to assure that the pumps are both working,
check of vibration of the pumps, observation of the wet-well for excessive
debris and scum, cleaning the valve pit and wet-well, exercise the
generator, replace components in the electrical control system when they
fail or failure is eminent. During the recent upgrade of the system, the
station was repainted. Rust should be under control for several years.
During May 27, 2010 and September 2010, the writer visually inspected
the pump station and other parts of the wastewater system. The primary
purpose during May was to obtain flows for the annual Discharge
Monitoring Report (DMR) for the N.Y.D.E.C. During this work, the pump
station was evaluated. The pumps operated satisfactory.
During 2008, The Pinder Construction Company upgraded the pump
station and leach field. All systems worked without failure since the
upgrade except the generator transfer switch required maintenance. The
reaction time was expanded to prevent false starts. The generator
continues to start independent of main power loss according to Harold
Cook.
B. Community Septic System
The major components of the community septic system are three, 10,000-
gallon septic tanks and 4-feet. x 4-feet. deep concrete leaching galleries
which form 14 rows of a flow distribution system. The wastewater flows
from the pump station to the tanks. The grit and septage are removed in
the tanks where it settles to the bottoms. The wastewater flows from the
tanks into a distribution system and into the 14 sets of leaching galleries.
The community leaching system was visited twice, once May 27, 2010
and once during September 23, 2010 in order to inspect various system
components.
The inlet distribution, the tanks, the outlet distribution and the 14 rows of
leaching galleys were inspected. The depths of sludge were determined.
The results are in Enclosure # 4.
Distribution to the leaching chambers was observed. (See Enclosure # 4).
In general, some of the western 60 foot and 100 foot long galleys were
partially filled. The eastern galleys were not. The flow is higher to the
west. The flow distribution is off balance.
Page 4
Fishers Island Sewer District
Repor~ on the Wastewater System
Operation and Maintenance
During 2010
I
I
I
I
I
!
I
I
I
I
I
I
I
I
I
I
I
I
Inlet 2 of the western 60 foot galleys had 31 inches of wastewater in it.
Inlets 2, 3 and 4 of the 100 foot galleys had 22 inches, 28 inches and 13
inches of wastewater respectively. See Enclosure # 4.
C. Sep~cTanks
Community Tanks
The three 10,000 gallon tanks were pumped during July 2008 to remove
sludge because they were filled to near excessive depths.
During September 23, 2010, sludge depths were measured in the three
tanks.
All of the sludge depths are shown in the Field Report of September 23,
2010 (See Enclosure # 4). However, the east tank inlet had 31 inches
deep septage in it, and the west one had 35 inches in the inlet and 17
inches in the outlet.
Cinema Tanks
The Cinema System consists of a 1,500-gallon septic tank followed by
four by four leaching chambers. Inspection of it reveals it is in excellent
condition and does not need improvements. Septage levels are very Iow.
Coast Guard Houses Tank (Silver Eel Cove)
The tank which serves the three Coast Guard houses is 2,000 gallons. It
is concrete and is in good condition. The septage is deep and need to be
pumped.
D. Silver Eel Cove System (3 Houses)
This system serves three residences, which in the past were owned by the
Coast Guard. This system consists of a 2,000-gallon septic tank and a
large precast concrete leaching system consisting of large leaching
chambers. It is in excellent condition. No improvements are required.
However, septage is deep in the inlet and outlet. This system requires
pumping. (See Enclosure # 4).
Page 5
Fishers Island Sewer District
Repori on the Wastewater System
Operation and Maintenance
During 2010
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
E. Sewage Collection System
The existing system consists of vitrified clay pipe, which normally cracks at
the bells or female fittings. Normally, groundwater flows into the system
through these cracks. This does not appear to be the case for the Fishers
Island System. However, stormwater catch basins near Tyler Lane are
connected into the system and contribute substantial amounts of inflow
during rainstorms. (Several were recently removed). Elimination of this
stormwater from the system was brought to the attention of the Town of
Southhold after smoke testing the system 17 years ago. A letter was
issued by A.R. Lombardi Associates requesting the repair and funding. It
has been addressed because it costs to pump the extraneous water and it
taxes facilities including the community leaching field. Sanitary manholes
in the Officers Service Road were inspected September 23, 2010. One
sanitary manhole should be pumped out because it is filling with debris. A
little gravel should be removed from another one and the top of one near
landscape boulders should be repaired. Note: Clusters of cloth were
found in two manholes downstream of the apartment house at the end of
the system. Cloth was found to a lesser extent at the community leach
field inlet.
Observations, Conclusions and Recommendations
Conclusions
During periods of non-rainfall and even during periods immediately
following rainstorms, the flow drops down. This indicates that the
groundwater table is Iow or it is not leaking into the sewers.
During 2001, the first clogging of the Officer's service road sewer with rags
occurred and was resolved. The clogging of manholes with cloth, debris
and pebbles has continued. During this year, the sewer had to be cleaned
to unclog it. The manholes in the Officers Service Road should be
monitored and cleaned before back up occurs again. (The obvious one is
the service road sanitary manhole that services the State Police Building).
The other one is downstream from apartments. The manhole was
observed to be clogged and backing up into the upstream sewer. If not
taken care of, this can result in basement flooding. During September 23,
2010, the aforementioned manholes were again clogging. Cloth like
material was observed.
Page 6
Fishers/sland Sewer District
Report on the Wastewater System
Operation and Maintenance
During 2010
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
The community leaching system distribution is acceptable. However, it
appears that the west galleries are heavier loaded. Several are loaded
beyond their capacities.
High flows occur during rain storms. Therefore, some storm sewer are
connected to the sanitary sewer system.
Based upon review of September 2010, the following can be concluded:
,/ Clogged manholes in Officer's service road must be cleaned,
inspected and rebuilt inverts if necessary.
· / Upstream users must refrain from flushing materials like cloth
down the toilet.
· / The flow distribution into the three tanks was unbalanced to
the west.
· / Pump out of septage from the three residential system near
the Silver Eel Cove system should be done.
,/ The pump station and leach field were upgraded during 2008
to better handle flows.
v' Open manholes in the community system have been covered
with new frames and covers.
· / Twice a year, maintenance of the pump station and generator
by equipment suppliers will help to extend equipment life.
v' The community leach field was mowed over the entire
system, except a strip of trees.
v' The trees on the leach field are a recent development.
· / Stormwater flows to the sanitary system.
· / The flow to the community system is higher to the west.
Recommendations
,/ Remove solid cloth material from surface of wet-well when it
accumulates.
,/ Community Septic Tanks: Remove sludge from the west and
east tank inlets.
,/ Pump out the septic tank at Silver Eel Cove residence system
as soon as is practicable.
Page 7
Fishers Island Sewer District
Repo~ on the Wastewater System
Operation and Maintenance
During 2010
I
I
I
il
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
· / Remove material from the manhole near the Officer's Service
Road (parallel to Whistler Avenue) and opposite the State
Patrol Office Building, and the manhole downstream of the
apartment complex.
,/ Remove all trees on the community leach field.
,/ Advise system users to refrain from flushing rags and similar
debris down their toilets.
· / Remove cloth material from the first distribution box at the
community leach field.
· / Continue to remove sources of stormwater from the sewers.
· / Keep records on propane use.
· / Carry out contract operations and maintenance.
Note: Due to the recent upgrades of the pump station and wet-well,
the list of maintenance items is shorter.
Page 8
Fishers Island Sewer District
Report on the Wastewater System
Operation and Maintenance
During 2010
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
ENCLOSURE # 1
MAINTENANCE CHECK LIST
FISHERS ISLAND WASTEWATER SYSTEM
MAINTENANCE CHECKLIST
MAINTENANCE CHECK PERIOD
ITEM ~DAILY WEEKLY MONTHLY QUARTERLY SEMI-ANNUALLY ANNUALLY
1. Standby Generator (inalude check of fuel X
level))
2. Sensors and Alarm System X
3. Power Usage Records X (DTC)
4. Flow Total X
5. Flow Rate X (DTC)
6. Automatic Transfer Switch X
7. Transducer System X
8. Pumps, Motor, Controls X
9. Remove Solids from Wet-Well Liquid X
Surface
10. Exercise Plug Valves* X
11. Observe Check Valves* X
12. Main Pump Mechanical (Check Alarm Light) X
13. Station Cleanliness X
14. Check Wet-Well Solids X
15. Check Community System Inlet Distribution X
16. Facilities Condition X
17. Mow Lawn/Brush As Needed
18. Wet-Well Cleanout As Needed
19. System Inspection I X (with DTC)
20. Pump Out Septic Tanks As Needed
21. Inspect Septic Systems X (with DTC)
22. Pump Tests to Determine Capacity X (with DTC)
* In Valve Pit
Note: All weekly items can be inspected during the weekly generator start-up. Visual observations are necessary.
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
ENCLOSURE # 2
DISCHARGE MONITORING REPORT
FIELD REPORT, MAY 27, 2010
I
I
I
I
I
I
I
I
I
I
I
To:
ENGINEERED
SOLUTIONS
WATER
LETTER OF TRANSMITTAL
The Honorable Louisa Evans
Fishers Island Sewer District
Fishers Island, New York
631-788-7054
DATE:
PROJECT NO.
RE:
6/~2010
10-189-100
Fishers island, Discharge Monitoring
Report of May 27, 2010
WE ARE SENDING YOU:
SPECIFICATI0~
CHANGE ORDER
DRAWINGS
REPORTS
~]A~ached
UNDER SEPAP~TE COVER
CoPY OF LETTER
SHOP DRAWINGS
OTHER
1
5/27/10 Field Report
THESE ARE TRANSMITTED AS CHECKED BELOW:
I
I
FOR YOUR USE APPROVED AS NOTED SUBMIT COPIES FOR DISTRIBUTION
AS REQUESTED RETURNED FOR CORRECTIONS RETURN CORRECTED PRINTS
FOR REVIEVVAND COMMENT OTHER
REMARKS:
COPY TO: FILE
HAROLD COOK, COOK CONSTRUCTION LLC
SIGNED: MICHAELA. HORNE, PE
I
I
I
IF ENCLOSURES ARE NOT AS NOTED, KINDLY NOTIFY US AT ONCE.
P:~2010\10189-FISHERS ISLAN D\DOC UMENTS\R E PORTS\06-02-10 EVANS FIELO REPORT OF 5-27-2010.DOC
2321 WHITNEY AVENUE SUITE 301 HAMDEN CT 06518
203 239 4200 PH 203 234 7376 FAX
I
I
£NGINEERED
SOLUTIONS
F:[ELD
REPORT
LAND
STRUCTURES
WATER
May 27, 2010
DATE TIME ON SITE WEATHER
Fishers Island, NY
LOCATION
Discharge Monitoring Report
SUBJECT
Michael A. Home, PE
REPORT BY
Fishers Island Sewer 10-189-100
PROJECT NAME I PROJECT NUMBER
I
I
I
I
I
I
I
I
I
I
I
Attendees: MichaelA. Horne, PE
Josh Ford, Cook Construction Company, LLC
Pump Station Review
A. Wastewater surface clear of floatables except about 1 ft.2.
B. Generator never ran the entire day based upon our observations.
C. Grass recently mowed. Pump station looks good.
D. Valve chamber damp from backup of wastewater.
E. Pump Station tested for flow as follows:
8:05 a.m. 35 sec.
38 sec.
34 sec.
36 sec. Ave. 5 gpm
9:05 a.m.
27 sec.
25 sec.
~8 sec.
27 sec. Ave.
8.7 gpm
2321 WHZTNE¥ AVENUE SUZTE 301 HAMDEN CT 06518
203 239 4200 PH 203 234 7376 FAX
PAGE
I
I
I
I
I
!
I
I
,I
i
I
I
I
I
I
I
I
I
I
ENGINEERED
SOLUTIONS
10:07 a.m.
11:00 a.m.
12:10 p.m.
1:00 p.m.
2:00 p.m.
3:05 p.m.
FIELD
REPORT
38 sec.
39 sec.
38 sec.
38 sec. Ave.
38 sec.
37 sec.
~6 sec.
37 sec. Ave.
45 sec.
51 sec.
49 sec.
48 sec. Ave.
52 sec.
51 sec.
48 sec.
50sec. Ave.
59 sec.
59 sec.
.58 sec.
59 sec. Ave.
67 sec.
66 sec.
67 sec. Ave.
LAND
STRUCTURES
WATER
4.7 gpm
4.9 gpm
3.75 gpm
3.6 gpm
3.1 gpm
2.68 gpm
2321 WHZTNEY AVENUE SUZTE 30`1 I'IAMDEN CT 065:18
203 239 4200 PH 203 234 7376 FAX
PAGE
2
II.
ENGINEERED
SOLUTIONS
4:00 p.m.
FIELD
REPORT
63 sec.
55 sec.
55 sec.
58 sec. Ave.
LAND
STRUCTURES
WATER
3.10 gpm.
4.47 Ave.
12 x 4.47 + 12 x 2.68 = 53.64 + 32.16 = 3.58 gpm = 5,155 gpd
24 24
5,155 g pd includes infiltration and inflow.
3,715 .qpd estimated wastewater ,~
Community System
A. Influent
West SMH 3" high chunk in invert.
East SMH invert dean.
B. Distribution
Flow is distributed west to septic tank.
Higher than east septic tank.
East outlet clogged with cloth.
Septic Tanks
East Center West
In: 11 ~" 13 ¼" 27:
c~I'.'13 ~" 22 ~" 13 %"
Leach Field Distribution Chamber
Flow slightly heavier to west than east.
Flow Iow straight through box.
Concrete very pitted.
2321 WI4[TNEY AVENUE 5UZTE 301 HAMDEN CT 06518
203 239 4200 PM 203 234 7376 FAX
PAGE
t
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
FIELD
Leach Field Flow Depths:
60 Foot West #1
#2
#3
60 Foot East #1
#2
#3
REPORT
Damp, no flow
24"
Damp 1", no flow
1" deep, no flow
1" deep, no flow
1" deep, no flow
100 Foot West #1 1", no flow
#2 22"
#3 31 ¼"
~ 16"
100 Foot East #1 12"
#2 2", no flow
#3 Dry
#4 Dry
III. Cinema System
In: 7" sludge
Out: No sludge
IV. Coast Guard System Septic Tanks
In: 23" sludge and 6" layer on top
Out: 19" sludge
V. Officer's Service Road
Manhole opposite State Patrol Building is clogged % of upstream of the manhole.
2321 WI'IITi~IE¥ AVENUE SUITE 301 HA~4DEN CT 06516
203 239 4200 PH 203 234 7376 FAX
PAGE 4
:1
I
I
I
I
I
il
I
il
I
I
I
I
I
I
I
I
I
I
LAND
STRUCTURES
WATER
FIELD REPORT
VI. Conclusions
B.
C.
D.
E.
Flow is within permit limit.
Flow distribution is heavy to the west galleries. It should be balance.
Septage is deep considering the tanks were just pumped out.
Clean the Service Road manhole before the wastewater backs up.
Mow the community leach field.
2321 WHZTNEY AVENUE SU/TE 301 HAMDEN CT 06518
203 239 4200 PH 203 234 7376 FAX
PAGe
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
ENCLOSURE # 3
DISCHARGE MONITORING REPORT
DEC
JUNE 2, 2010
I
I
I
i
I
i
I
I
I
I
I
I
I
I
I
I
I
I
I
June2,2010
Mr. Scott A. Russell, Supervisor
Town of Southold
Town Hall
P.O. Box 1179
53095 Route 25
Southold, New York 11971
Discharge Monitoring Report
Fishers Island New York Wastewater Systems
NYS-SPDES DMR N.Y. 0.199214
DTC Project No. 10-189-100
Dear Mr. Russell:
In conformance with our contract, we are pleased to submit the Discharge Monitoring Report for the
Fishers Island Wastewater Disposal Systems. The sludge depths for the septic systems 001,002 and 003
as shown in Table 1, and the estimated wastewater flow rotes for systems 001,002, and 003 based on
flow monitoring are shown in Table 2.
We are sending copies to Justice Louisa Evans, as well as the listed State and County officials for their
records.
Sincerely,
DIVERSIFIED TECHNOLOGY CONSULTANTS
Murali Atluru, Ph.D., P.E.
Chairman and Chief Executive Officer
Michael A. Home, M.S., P.E.
Enclosures: Table 1 and Table 2
cc with enclosures:
Justice Louisa Evans, Esquire
Mr. Dilip Bane~jee, Department of Conservation, Region 1
N. G. Kaul, Director, DEC
Mr. Isador Doroski, Suffolk County Department of Health Services
P:~2010\ 10189-Fishers Island\documentsLReports\06-02- i 0 Russell Discharge Monitoring Report.doc
2321 WHITNEY AVENUE HAMDEN CENTER II HAMDEN CT 06518
203 239 4200 PH 203 234 7376 FAX
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
F1SltER'S ISLAND WASTEWTER SYSTEM
FACILITY ID NUMBER- NEW YORK 0.199214
TABLE 1
SHOWING SEPTIC TANK CONDI'I'IONS FOR
SYSTEMS 001, 002 AND 003
May 27, 2010
System Description
(001) Community Septic System
3 10,000 Gallon Concrete
Septic Tanks 12 Feet High,
10 Feet Liquid Level Depth,
20 Feet 6 Inches Long
Septage Conditions
West Tank
Inlet Compartment
Outlet Compartment
Thin Scum Layer
Negligible Scum
27" Deep Septage
13 1/2" Deep Septage
Middle Tank
Inlet Compartment
Outlet Compamnent
Thin Scum Layer
Thin Scum Layer
13 1/2" Deep Septage
22 1/2" Septage
East Tank
Inlet Compartment
Outlet Compartment
Thin Scum Layer
No Scum
11 1/2" Deep Septage
13 1/2" Septage
(002) Cinema Septic System
1 1,500 Gallon Concrete
Septic Tank 7 Feet High
10 Feet 6 Inches Long, 5 Feet 4 Inches Liquid Depth
Septage Conditions
Inlet Compariment
Outlet Compartment
No Flow in System
Thin Scum Layer
1" Scum
7" ~- Deep Septage
1" · Deep Septage
(003) Three Cottages Septic System
I 2,000 Gallon Concrete
Septic Tank 7 Feet High,
11 Feet Long, 5 Feet 4 Inches Liquid Depth
Inlet Compartment
Outlet Compartment
6" Scum/Debris
2" Scum/Debris
23" Deep Septage
19" Deep Septage
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
TABLE 2
ESTIMATED WASTEWATER FLOWS
(S~WAGE O~Ly)
SEPTIC SYSTEM
SEASON
001
Winter
002
SLml/iler
Winter
003
Winter
ESTIMATED TOTAL FLOWS
(INCLUDING EXTRANEOUS FLOWS)
001
002
Winter
003
Winter
FLOW (AVERAGE
GALLONS/DAY)
9,488 gpd
3,938 gpd
700 gpd
7 gpd
550 gpd
250 gpd
16,688 gpd
7,688 gpd
700 gpd
7 gpd
550 gpd
250 gpd
I
I
I
I
I
I
I
I
ENCLOSURE # 4
OPERA TION AND MAINTENANCE
FIELD REPORT, SEPTEMBER 23, 2010
I
I
I
I
ENGINEERED
SOLUTIONS
FIELD
REPORT
LAND
STRUCTURES
WATER
September 23, 2010 Sunny
DATE TIME ON SITE WEATHER
Fishers Island, NY
LOCATION
Operation and Maintenance - Sewer System
SUBJECT
Michael A. Home, PE ~.~.
REPORT BY
Fishers Island Sewer 10-189-200
PROJECT NAME / PROJECT NUMBER
I
I
I
I
I
I
I
I
I
I
I
I
Attendees: MichaelA. Horne, PE
Vinney Tott, Harold's Construction Co., Inc.
Pump Station
Weeds have grown inside the fence.
applied.
Pump Cycle:
Off 8:12:32 1.1 Ft.
On 8:46:40 2.3 Ft.
Off *;47:32
Off cycle time = 34.13 minutes
Volume = 1.2 Ft. x Fl r~= 33.92 Ft.0
They SHOULD be pulled and "Round Up"
33.92 Ft.3x 7.48 g/Ft.3= 253.72 gal + 7.4 gpm.
Note: This does not allow any blow-by the check valves. Any blow-by decreased the
7.4 gpm
Pump capacity is above specification.
Generator is in good physical condition. It did not start while we were pump testing
and inspecting the pump station. Harold indicated that it still starts due to Iow line
voltage.
2321 WHITNEY AVENUE SUITE 30t HAMDEN CT 06518
203 239 4200 PH 203 234 7376 FAX
PAGE
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
ENGINEERED
SOLUTIONS
LANO
STRUCTURES
WAT£R
FIELD REPORT
Propane Tank
Weeds are growing up around it, They should be cleared. Harold indicated that he
is looking for a lower priced propane supplier,
Valve Pit
Evidence of stormwater backup over valves. One backup during an unusually
intense rainfall during the spring was observed.
2. Community Leaching Field
A strip of trees has been allowed to grow along the old fence line in the middle of the
leach field. It must be cut down because the mots will get into the leaching system
Inlet Weir Box
The west outlet is 80% clogged with cloth-like materials similar to the sanitary
manhole that clogs. It appears the source of the cloth-like material is the same. The
person or persons responsible should refrain from discharging the materials into the
sewers.
Right Manhole
Muck on the shelf of the manhole. Same debris in the channel.
Septic Tanks (10,000 gallon each)
SLUDGE DEPTHS
Tank inlet Outlet
East 31" 18"
Center 20" 21"
West 33" 17"
Note: Cloth-like material on top of wastewater west tank.
The tanks need pumping again.
Outlet Weir Box: Flow distribution fairly even.
Flow in Galleys:
60 Ft. East Galleys
1. Ponding
2. Drip/Ponding
3. Drip/Ponding
100 ft. East Galleys
1. Drip/Ponding
2. Pond 2" deep
3. Dry
4. Dry
2321 WHITNEY AVENUE SUITE 301 HAMDEN CT 06518
PAGE
203 239 4200 PH 203 234 7376 FAX
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
I
ENGIN£ERED
SOLUTIONS
LAND
STRUCTURES
WATER
FIELD REPORT
60 Ft. West Galleys
1. Dry
2. 31" Deep
3. 2" Ponding
100 ft. West Galleys
1. Ponding
2. High Flow 22" Deep
3 28" Deep
4. 13" Deep, Flow High
The galleys are overloaded to the west.
The distribution box should be adjusted.
Cinema System
Tank inlet 2" sludge
Tank outlet 1" sludge
No Action Required.
4. Silver Eel Cove Houses
Inlet 2" scum, 16" sludge
Outlet 17" sludge
Owner asked question regarding connection of a new cottage.
The capacity is established for these "beehive" distribution galleries. The
easement restricts building onto the system. Another separate fact is that this
tank (1,500 gal.) must be pumped. This tank has been overloaded for about
three years.
5. Manhole in Alleyway
The sanitary manhole in the alley which has plugged on occasion is full of the cloth-
like materials again. Persons discharging this should refrain. Eventually, other parts
of the system will clog.
6. Building 57
The building is substantially completed.
plans of storm and sanitary sewers.
Downspouts are installed. Need as-built
cc: The Honorable Louisa Evans (3 copies)
Harold's Construction Company (1 copy)
2321 WHITNEY AVENUE SUITE 301 HAMDEN CT 06518
PAGE
203 239 4200 PH 203 234 7376 FAX