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HomeMy WebLinkAboutAngel Shores Water Supply Report wATER SUPPLY REPORT ANGEL SHORES AND THE COVE SOUTHOLDf LONG ISLAND~ NEW YORK CONSULTING ENGINEERS 120 EXPRESS STREET PLAINVlEW, NEW YORK 11803 HENDERSON AND BODWELL CONSULTING ENGINEERS WATER SUPPLY REPORT ANGEL SEORES AND THE COVE SOUTBOLD~ LONG ISLAND~ NEW YORK MAY 6, 1985 REVISED FEBRUARY 17, 1986 REVISED APRIL 1, 1986 REVISED SEPTEMBER 26, 1986 Henderson an~ Bodwell Plainview, New. York RUSSELL S/BODWELL N.Y.P.E.~. 44516 HENDERSON AND BODWELL CONSULTING ENGINEERS TABLE OF CONTENTS INTRODUCTION ............................... SUMMARY OF REVISIONS ....................... SITE PLAN (REVISED) ........................ PROPOSED WELL SITE (REVISED) .......... . .... bOCATION PLAN .............................. REQUIRED QUANTITY OF POTABLE WATER ......... WELL TESTING ............................... WATER QUALITY .............................. SYSTEM DESCRIPTION AND OPERATIONAL GUIDELINES .............. 6 WELL CONSTRUCTION .................. STORAGE REQUIRED ................... WELL PUMP CONTROLS ............... .. SERVICE PUMP CONTROL ............... HYDROPNEUMATIC TANK ................ CHLORINATION ....................... pH CONTROL ......................... GRANULATED ACTIVATED CARBON FILTERS DISTRIBUTION SYSTEM ............................... 10 CONNECTING WATER MAIN ............................. 11 HENDERSON AND BODWELL CONSULTm~ ~;NO'NEE.$ TABLE OF CONTENTS CONTINUED SUMMARY .......... · ........................................ 11 APPENDICES A - PRELIMINARY TEST RESULTS FROM 5 2" TEST WELLS B - INITIAL TEST RESULTS VS. DEPTH AT PROPOSED WELL SITE C - PUMPING TEST RESULTS, FROM NY TESTING D - PUMPING TEST RESULTS FROM SUFFOLK COUNTY HEALTH DEPARTMENT E - SECOND PUMPING TEST RESULTS, FROM ECO TEST F - SECOND PUMPING TEST RESULTS, FROM SUFFOLK COUNTY HEALTH DEPARTMENT G - JANUARY, 1986 PUMPING TEST RESULTS A-1 B-1 C-1 D-1 E-1 F-1 G-1 HENDERSON AND BODWELL CONSULTING ENGINEERS REVISED WATER SUPPLY REPORT ANGEL SHORES SOUTHOLD, L.I., NEW YORK INTRODUCTION The Angel Shore project consists of a proposed 29 lot subdivision on Main Bayview Road in the Town of Southold Long Island, New York. As five individual 2" test wells were driven in various locations on the site resulting in 4 unsatisfactory wells and 1 satisfactory well, (see test results in Appendix A), The Suffolk County Health Department required a community well and water supply system. Based on the test results of these five preliminary test wells, the proposed well site and a 200' radius protection field were proposed on Lot 1, thus reserving Lots 1, 2, and 3 for the protection field, (see proposed well site). Therefore, the community water supply system was originally intended for 26 single family lots. The site plan .has since been modified, allowing maintenance of a 200 foot protective radius while using only two lots. The system has therefore been modified to serve 27 single family lots at Angel Shores. The Angel Shores subdivision has since been expanded with the original 27 lots comprising Section 1 and an additional 24 lots immediately east of the first section forming Section 2, bringing the total number of lots in the Angel Shores subdivision to 51. Test wells were driven at the proposed well site and a pumping test was performed using a conservative rate from which was derived the original design critera of this report. 1 HENDERSON AND BODWELL CONSULTING ENGINEERS Subsequent Revisions It was subsequently proposed that the Angel Shores water supply be constructed with sufficient pumping and storage capacity to also serve the proposed subdivision known as the Cove, to be located approximately 4900 feet from the Angel Shores project. The Cove is to consist of 33 condominium units, bringing the total to be served up to 84. This substantially increases the projected water usage and requires greater pumping and greater storage capacity. Additional pumping tests were performed in January of 1986 in order to observe the time needed to stabilize the well drawdown at the increased flow rate and d~monstrate that chlorides would not appear at the increased flow rate. Based on the well test and pumping test performed on the proposed well site, the quanity of water is more than satisfactory and no significant draw down on the groundwater regime occured. Summary of Revisions 1. Angel Shores prOject has increased from 26 to 51 units. The water supply plant will also serve a known as "The Cove", consisting of 33 units. subdivision condominium In addition to pumping, chlorination and storage, the plant will feature: 2 HENDERSON AND BODWELL CONSULTING ENGINEERS ' JJ HENDERSON AND BODWELL CO,SU~TmO [NO~#[[n$ \ '% 3b _REVISED WELL SITE HENDERSON AND BODWELL CONSULTING ENGINEERS OI / / LOCATION PLAN 0 O .,d ,,.J HENDERSON AND BODWELL CONSm. T~NO ENGINEERS a. auto blow-off on well startup. pH adjustment. c. Polyphosphate addition. d. The installation of a backup. Well capacity is increased minute per well. third well to act as a from 20 to 30 gallons per Storage capacity is increased from 10,000 to 54,000 gallons. It is anticipated that the Greenport Water District will be able to take over operation of the plant. Required Quantity of Potable Water Based on 100 single family units at 3-1/2 persons per unit and an average per capita demand of 100 gpd, we calculates Pumpage Drawn From Draft From Wells Storaqe (Factor) Average Day 35,000 gal. 35,000 0 1 Maximum Day 140,000 86,400 53,600 4 Max. 6 Hrs. 74,400 21,600 52,800 8.5 Max. 1 Hr. 7,900 3,600 9,500 9 This calculation is based on the use of three 30 gpm wells with a maximum of two wells running a peak times with the third as a backup in case of well malfunction for a maximum of 60 gpm during peak demand. Please note that the above calculation is tabulated using 100 single family units, this is based on the servicing of 84 units plus a 15% ~ contingency which yields a more conservative design. HENDERSON AND BODWELL ~ONSULTING ENGINEERS Well Testing The following well tests were performed in the proposed location, (see Site Plan), to obtain quantity and quality assurances. First a 2' dia.'well was driven to a depth of 57 feet, the well was then pulled back every 5 feet, pumped off and sampled for choride, nitrate and iron. All samples were analyzed by New York Testing Laboratories Inc.., of Westbury, New York. The results from this first test can he found in Appendix B. Next the depth of the supply well was selected based on the test results of' the first test and various requirements of the Suffolk County Health Department. A four inch test well was installed to a depth of 53.5 feet. The well was pumped at a rate. of 40 gpm for a 7 hour period on two separate occasions. Water samples were secured by both Henderson and Bodwell and the Suffolk County Health Department. Results can be found in Appendix C and Appendix D. These tests provided sufficient evidence that the water quality is satisfactory and well within the New York State guidelines, and that the well was capable of producing a ' free yielding supply with negligible draw down on the surrounding groundwater regime. Therefore, this source should be more than adequate in supplying the Angel Shore development. Additional Well Testing for Expanded Project On January 7, 1986 and January 22, 1986, the existing test well was operated at a flowrate of 60 gallons/minute. Samples were taken by the Suffolk County Department of Health Services on January 7 (Start, 3 hr and 7.5 hr) and by Henderson and Bodwe11 on January 22 (Start, 2.5 hr and drawdown measurements). Samples taken on January 22 were taken to Ecotest Laboratories, North Babylon, New York. HENDERSON AND BODWELL CONSULTING ENGINEERS Samples analyzed by the County were generally well within New York State limits with the exception of iron, which fluctuated widely (0.01 - 3.91 mg/1 vs. a limit of 0.3). Samples analyzed by Ecotest (for iron and manganese only) were within state drinking water limits. It is proposed that a polyphosphate system be included as a precautionary measure in the event that transient iron concentrations are encountered. It is also proposed to install an automatically operated blowoff valve system which would purge the water initially pumped from a well during startup. The (pilot-solenoid) valve would be energized by a timing relay which in turn would be started by either of the well pump motor starters. A third well will also be installed to serve as a backup in the event of a well pump malfunction. Water Quality Based on the test results from samples taken during the initial well test and during the 7 hour pumping test, the overall guality of the water is satisfactory. Samples were collected by both Henderson and Bodwell and the Suffolk County Health Department. The initial well test compared chloride, nitrate and iron levels at various depths to determine the best depth for the community well. These results can be found in Appendix B. They indicate chloride levels ranged from 16 to 31, nitrate levels ranged from 0.3 to 7, and iron levels ranged from .05 to 0.17. All levels were well under the allowable. ~u:in] the pumping test samples were secured by Henderson and Bodwell at 15 minutes after the pump test started and after 7 hours of pumping, these samples along with samples from the onsite pond were sent to New York Testing for HENDERSON AND BODWELL CO~U,~'r, Nr- ,:.o,.E;.s analysis. The Suffolk county Health Department secured samples at I hour, 3 hours, and 6~ hour intervals after pumping had started. The New York Testing analysis can be found in Appendix C, while the Suffolk County Health Department results can be found in Appendix D. In comparing the test results there appears to be substantial conformance between them. The only exception is the detection of chloroform by New York Testing in both the well samples and the pond sample. Although the level of chloroform detected is below the allowable, a second pumping test was performed and new samples were taken by both Henderson and Bodwell and the Suffolk County Health Department. The second set of samples was taken to Ecotest Laboratories (test results in Appendix E). Both their test results and the Suffolk County Health Department's additional test results, (test results in Appendix F), indicated no detectable level of chloroform in the samples. Therefore, it appears that the chloroform reported by New York Testing was a laboratory problem and not a water quality problem. SYSTEM DESCRIPTION AND OPERATIONAL GUIDELINES Well Construction The three production wells would each be about 54 feet deep, located about 30 feet apart; each six inch diameter well would be equipped with a submersible motor pump capable of delivering 30 gpm at a dynamic head of between 40 and 60 feet, to be determined by the specific capacity of the well. 6 HENDERSON AND BODWELL CO~UL~NGENGINEER$ The wells would be constructed and equipped in accordance with New York State Standards. Storage Required An above ground storage tank of 54,000 gallon capacity is proposed. This will provide sufficient storage to meet all the peak demands. The tank would be of epoxy coated steel, inside and out, meeting New York State Health Department requirements, and would be 9 feet in depth and 32 feet in diameter. (Approximate dimensions, subject to shop drawings, etc.). Well Pump Controls The three well pumps will discharge into the above ground 54,000 gallon storage tank. They will be started and stopped by 'Asco Tripoint" pressure switches of the adjustable dead-band type. This type of switch is exceedingly accurate and will be able to control the water level in the 5~,000 gallon tank within a range of two or three inches. One pump will be controlled to start when the tank content is at 90% of capacity, and the second pump to come on-line to supplement the first pump whenever less than 66% of its capacity is contained in the 54,000 gallon tank. The third well will act as a backup and come on line in the event that one of the first two pumps fails to operate. This arrangement for controlling the pumping operations from the wells will provide minimum disturbance of hydraulic balance between fresh and salt water in the strata beneath the well screens, as the wells will operate HENDERSON AND BODWELL CONSULTING ENGINEERS against a constant head and will not have a wide range of pumping rates (such as they would have if they were pumpin9 directly to the hydropneumatic tank). Service Pump Control The 54,000 gallon tank will act as a clear well for two service pumps~ each 125 gpm capacity when discharging against a pressure of 6.0 pounds per square inch (psig). Hydropneumatic Tank These service pumps will discharge into a 3,000 gallon nominal size hydropneumatic tank. The tank will be fitted with the same type of PreSsure switch used for controlling the well pump operations and arranged to control the maximum pressure in the tank at 70 psi and the minimum pressure at 35 psi. Normally, only one pump will be used to feed this tank and the other will be a spare; but at any time of high demand, when the one pump running cannot keep the pressure above 35 psi, the second pump 'will come on-line to aid it. A small air compressor will be installed to maintain the air-water balance in the hydropneumatic tank. From the hydropneumatic tank, the water passes directly into the small distribution system. Chlorination A small chemical feeder and associated equipment would be furnished for disinfection, together with a complete spare unit. HENDERSON AND BODWELL CONSULTING ENGINEERS Electrical tie-ins with the well pump control system would start and stop the feeder When a well pump starts or stops. It is expected to dilute 15% to 5% solutions Hypochlorite for use as the disinfection agent. of Sodium Control Control of pH will be provided by means of either sodium hydroxide or sodium bicarbonate. Either compound would be fed as a 4-5 percent solution, with the same equipment used for either. Bicarbonate has the advantages of being safer and self buffering (maximum pH about 8.3) in the event of an overdose. Its major disadvantage is limited solubility (6.5~ percent). Stabilization .Laboratory results obtained from the sampling at 60 gallons/minute indicate that iron may be found intermittentl~ (present on January 7, 1986, absent on January 22, 1986). Because of this, the Suffolk County Department of Health Services has requested and it is proposed that a chemical stabilization system be provided. The method proposed is an additional drum/mixer/feeder combination to be used for the addition of sodium hexametaphosphate or other mutually acceptable stabilizing agents. Chemical Feeders - General A total of six chemical feeders will be installed - two for hypochlorite, two for alkali and two for polyphosphate. All feeders will be the same size and a seventh will be provided as a spare. When a well pump starts and runs, it will start the operation of a set of feeders: one HENDERSON AND BODWELL CONSULTIN§£NSlNEER$ hypochlorite, ~ne ~lkali, and one polyphosphate The power circuits to the feeders will be tri~le interlocked. In order for the feeders to run,. there will have to b~ flow, pressure.and successful auxilllary contact closure in the well pump motor starter. .Each. of t~ese conditions will close a pair of contacts (wired In series) . in the chemical feed pump motor circuit. . .. Although objectionable quantlti?s of pesticides or fertilizers have not been found in the samples of w~ter that have bee~ analyzed, the Department of Healt~ .Services ~alls attention to the presence of pesticides in neighb?ring wells. They believe it possible that objectionable chemical pollutants might be found in these waters in the future. . . . For that reason, space is provided in the plant d~slgn for the installation of granular activated carbon filters' at such time should they.become n~c~ssary. Space is provided ~ ~t~c~2t ~nfeh. un~;f~c ~ u~le;n~ f fit installed in order to allow future connection with minimal disruption of operation. _ Distrlbution System . . . The distribution__ system will consist of slx. inch mains. No piping carrying potable water will be installed closer than 10 feet to any piping carrying wastewater. I~ 10 HENDERSON AND BODWELL CON~ULTiNS ENGINEER~ All piping is expected to be either rigid PVC pressure pipe with ductile iron fittings or ductile iron pipe. PVC pipe will conform with AWWA standard C900-81. Ductile iron pipe fittings and joints respectively will conform with AWWA standards C-151, C-150, C-110, and C-111, with cement mortar lining in accordance with AWWA standard C-104. Pipe will be installed in trenches at a depth of not less than 4' 6". Connectin~ Water Main The water main connecting Angel Shores with the Cove will be constructed of ductile iron pipe, thickness Class 52, cement lined. Pipe will conform, with the iron pipe specifications listed under "Distribution System". The pipe will be eight (8) inches in diameter and will not be connected to any fire hydrants. Standby Power The plant will be equipped with a standby generator of 40 KW capacity, sufficient to runn all machinery in the plant, and one space heater. It is proposed to lock out the other heater. Transfer of power'will be automatic. Fuel will be L.P. gas or propane. Summary The water supply system described would furnish an adequate supply of good quality water to the proposed residential community. It would be essentially completely automatic in operation and require a minimum of operational labor. HENDERSON AND BODWELL CONSULTING ENOIN£ER$ Additional structural and operational details will be furnished in the construction drawings and specifications including, among other items, sterilization of tanks and water mains, spare parts, chemical storage, chemical testing equipment and supplies, etc. An operating manual would also be provided. Respectfully Submitted: HENDERSON AND BODWELL CO~UL'nNo E.m,E'~.S i ~ ~PPENDIX ~ HENDERSON AND BODWELL CONSULTING ENGINEERS November 30, 1983 Richard J. Cron, Esq. ?. O. Sox 953 Cutchosue, New York 11935-0032 Ne: Board of Reviev Nearing Hap of Anger Shore ~stetes, To~m of Souchold At the hearing held on Havember &, Z983 you had an opportunity to present your appeal of the departuent'a gultnB on the subject In accordance vttb the provisions of Section 220 of ArrLcle 2 Of the Suffolk County Sanitary Code, the decerminetton of the Board of ts as follovs: application rill be approved only If · central vate~ eupply la provided. Very truly yours, o ~aFd o~ Revle~ AA/lsr CC Royal R. Reynolds, Hr. Charles O. Lind Young and Young To~n o[ Southold ?~anning Boazd A-! HENDERSON AND BODWELL CONSULTING ENGINEERS CASOLA WELL DRILLERS WELLS -- PUMPS -- TANKS BRANCH: September 16, 1983 Richard J. Cron Main Rd. - Box 953 Cutchogue, N.Y. 11935 RE: Angel Shore Est. Sub-Division sis Crystal Waters Rd. his Gull Haven Rd., Southold, N.Y. TEST WELL: #1 A. 2" Well driven pulled back B. 2" well driven pulled beck pulled back ~2 A. 2" well driven pulled back pulled back pulled back pulled back #3 A. 2" well driven pulled back B. 2" well driven pulled back ~4 A. 2" well driven Invoice # 43071/43072 to 52', salt (8' to water) to 36',brackish. tO 36', salt to 26' - 850 ppm chlorides to 18' - 25 ppm chlorides to 66' - salt. {8' to water) to 4~e - no water to 33, - no water to 29° - no water tc 24' - good water to 52' - high iron to 26' -no Iron to 52' - high Iron to 26'- no iron (10' to water) (12' to' water) 52'- iron (3' to water) ~5 A. 2" well driven bo 52'- no iron (9~' to water) ."4 A. Note: When 100' fro~ cesspools is available Board of Health will accept minimum of 10' of water if salt is below on new construction. 2" well driven to 9b' - salt (5' to water) pulled back to 6S'-hi~h Iron 65' through 20' high iron pulled back to 15e - good water 2" well teated deeper to 68' - salt. pulled back to 58, hiah iron 58' through 31' high iron pulled back to 26' - good water. ( 10' to water) A-2 HENDERSON AND BODWELL CONSULTING ENGINEERS ' D=t=3une 14, 1983 Reference No. 41520 Conrraczor. ,Job Location: Diimeter of ~cll: Type of Well: Type or Scscan: To(al Depth of ~'elh Static Wirer Level: WPCC NoS-?4SSST Richard 3. Cron ~qel Shore Est. Sub-Dtv£slon s/s Sandy Dr. 670' w/o Blue ~atets Dr., Southold 2' Test well Driven StaXnless 16' (sixteen) 9' (n~ne) Depth of Water Ikadflg Stratum: '/' (seven) Size of T~nk: Not Installed Capacity or Pu'mp: Not Znsta~Bg: ~fethod oF Disinfection: ..... Remarks: Nell tested to 36' salt, pulled back 16' (250-300ppm salt) CASOLA WELL DRILLERS License No. 241 A-3 HENDERSON AND BODWELL CON~ULTINO ENGINEERE ' WELI CERTIFICA'i' CASOLA WI LL DRILLI:::RS D=;c: _~.une 14. 1983 Job L~cuinn: Diameter of ~'ell: Type of Well: Type of Screen: Total Depth of Well: W'FCC No. c_'ta~m Sandy Dune Dr. w/c Blue Water Dr., Southold 2" Test well Driven Stainless 24' (twenty four) 8' (eight} Depth of W;Ker B~fing Scrotum: 16 ' (sixteen) ~pacJty t)~ Pump: Not Zns~ ~l~hod of Disinfe~ion: .... Remarks: Nell tested to 66' salt, pulled ~cR to 24' 511t at 29' ~3' and 47'. CASOLA WELL DRILLERS License No. 241 A-4 HENDERSON AND BODWELL ~ONSULTINO ~NaIN.~ · · CASOLA WI:LL DRILLI:::RS Dace: ,Tune 14,1983 ReFerence No. 41522 Owner. .lob Lomion: WPCC bio. S-74557T Richard ~. Cron #J Angel Shore Est. Sub-Division s/a Crystal Waters Rd. ~00' w/o Southold Di=mc(cr ol' Well: Type or' Well: 2# Dgtven Screen: Stainless Total Depth of' Wd]: Static Wirer Level: Depth of Wlcer ~ring Stmu~ Size oF T~n~ ~paci~y of Pump: U~hod or Dislnfe~ion: Remarks: 52* (fifty two) lp' (ten) 42' (forty t~o) Not Znstalled CASOLA WELL DRILLERS Lie.cpsc. No. 241 A-5 HENDERSON AND BODWELL (~JSULTING ENGINEI:R$ WELL CERTIFICATE CASOLA WI:::LL DRILLI=RS I~0~ HONTAUK HIGH~AY · MASTIC, L.I.. N.Y., 11950 Da;~ Oune 14, 1983 Keferencc No. 41523 WPCC No.S-745587 R/chard 3. Cron An;e! Shore Est. Sub-D£vlsion Job Locatinn: Di~nc~cr of Well: n/s Gull Haven Rd. 870' v/o Blue Southold 2" Test veil Dc/yen Stainless Ty~e of S~reen: Total Depth of Well: Static ~/Iret level: Depth of ~,',ter Bearing Stratum: Size of Tank: 52' 3' (three) 49' (~orty nine) Not ZnsteZled C~paci;y oF-Pump: Iderhod of Disinfecrion: K~marks: CASOLA ~'ELL DRILLERS License No. 241 HENDERSON AND BODWELL CONSULTING ~NGINEER$ D,~cO*une 14, 1983 F.c f. ence No. 41524 Job Location: Diameter of Type o1' Well: .... Type ol' Screen: Total Depth of Welh 5,~tic W.~et Level: WPCC N~-74559T Richard ~. Cron #5 Angel Shore Est. Sub-Division w/s 81ue Waters Dc. 230' s/o Bayview Southold Stainless ?~' {~even and ~) Dcpdl of Watet Bearing St~.tun~ Size o1' ?anlc C~pacity of Pump: Alethod ol' Disinfection: 44k0 (forty four and k) Not lnmtall~8 ~.'~SOLA WELL DRILLERS License No. ~'41 , '{. A-7 APPENDIX B n HENDERSON AND BODWELL oo~sm.~ .~aINeE~ L~ No: 85-1000g January 31, 1~85 ,%'ENVy'I'ORK TESTIA'G LABORATORIES, IN'C, REPORT OF TESTS Client -- 85-10009 - Henderson & Bodwe11 Eight (8) Water Samples Client's Order No. -- Identification -- Pending As Below (Samples Received 1/21/85) Submitted for -- Chemical Analysis Sample Identification Chloride Nitrate Iron (mg/1) (m§/1) (m9/1 Angel Shores 17' Angel Shores 22' Angel Shores Angel Shores Angel Shores 37' Angel ShOres 42' 'Angel Shores 47' Angel Shores 52' 31 0.38 0.051 27 0.28 0.165 lB o.go 0.159 18 0.40 0.056 17 0.29 0.031 16 0.60 0.049 16 2.51 0.044 20 7.06 0.083 Report prepared by: Remo Gigante ,~borat~ry Director To: Express Street Plainview, N. Y. 11803 Att: Mr. J, Milligan mg We certify that this report is a true report of results obtained fro~ our tests of this material. Respectfully submitted, NEW YORK T£STIt;G .ABOR:.O~,£S. ~'.m G. ~.~~Officer B-1 HENDERSON AND BODWELL ~,?mo ~.a,.z,~..: APPENDIX C HEN~ER,~:)N AND '~,C)D~'ELL L'-.I~,~,O~TPeG t'~o~vtc~* _OA/test Vi'r ............. en onmen · ..: = 3 :: : 85-10314 5ampi e Number: Pond Sample Size: I el. Internal Std. Cones. (total ngs.} Surrogate Std. Cones. { total ngs.) Bromochloromethane ......... 57 ~oBromool-chloropropane . gh Deuterochloroform aa .... Oeuterobenzene ...... Oeuterotoluene .... F~thod Detection Hethod CAS Limit Found Parameter NO. No. (ppb)* _~p~b_.)... Acrolein 624 107-0~-8 100 ND Acrylonitrile 624 ~07-13-1 100 ND Benzene 624 71-43-2 ]0 Bromo~ichloromethane 624 75-27-4 ]0 ND 8romoform 6~4 75-25-2 10 ND Bromgmethane 624 74-83-9 lO ND Carbon letrachloride 624 56-23-5 10 ND Chlorobenzene 6~4 ]08-90-7 lO ND Chlorodibromomethane 624 ]2A-48-] lO ND Chloroethane 6Z4 75-00-3 10 ND 2-C~to-oetnyl vinyl ether 624 110-75-8 lO ND C))] :r~ fon~ 624 67-66-3 Chloro~ethane 6~4 74-87°3 !.g.~chiornbe~?ena 67~ g5-50-] ],4-O~chlorobenzene 6~4 106-46-7 lO ND I(D = ~one ~etected *[PA published method detection limiL C-]. HENDERSON AND BODWELL CONSULTI#O ENGI#EER$ ' environmenta . .v.oL_u.J.t_L_c~.Pg!l...~.~ . co~L'd. Sample Humber :...P. ':: I~ 85-10314 Hethod Detection Hethod CAS LimiL Found Oichlorodifluoromethane G~4 75-7l-8 l,I-Dichloroethane 624 75-34-3 10 #O 1,2-Otchloroethane 624 107-06-~ 10 ND ].l-Dichloroethylene 624 75-35o4 10 ND Trans~l,2-Oichloroethylene 6~4 156-60-5 l0 ND ),?-Dichloropropane 624 78o81-5 ' i ]0 ND 1.3-Dichloropropene 624 10061-02-6 I0 [ thylbenzene 6?4 100-41-4 lO ND F~thylene Chloride 624 75-09-2 10 ~D I,l,?,2-Tetrechloroethane 624 79-34-5 lO ND Tetrechloroethylene 62~ 127-18-4 lO ND Toluene 624 108-88-3 lO I,l,I-Trichloroethane 6?4 71-55-6 }0 NO l.l,2-Trichloroethane 624 79-O0-5 I0 Trichloroethylef~e, 6?4 79-01-6 lO ND Iricnlorofluoromethane 62a 75-69-4 10 Hi) Yin)'! Ch]oride 624 75-01-4 ]0 ND 'ErA publtshed f.~thud detection limit C-2 HENDERSON AND BODWELL CONWLTmG [NmNEEAS ' enwronmento .. PESTICID[ COMPOUND5: LUI ~ hi') 85-10314 Sample Number: Pond Sample Size: 500 mis. Extract Volume_].O el Volurae Inj. 5 Parameter Hethod Ho. CAS # Aldrin 608, 6~5 309-00-2 10' ND . -BH£ 608, 625 319-84-6 10 NO e -BH: 608, 625 319-85-7 10 ND 6-8HC 608, 625 319-86-8 le ND ~-B~C 608, 625 58-89-9 10 ND Dieldrin 608, 6~5 60-57-1 10 e-Endosulfan 608, 625 g59-98-8 10 ND ~-Endosulfan 608, 625 33213-65-9 I0 NO Endosulfan sulfate 608. 625 1031-07-08 10 NO Endrin 608. 625 72-~0-B l0 ND [ndrin a)dehyde 608, 625 7421-g3-4 10 ND Heptachlor 608, 625 76-44-8 10 ND Heptachlor Epoxide 608. 625 1024-57-3 10 ND 4,~'-DDT 608, 625 50 29-3 lO ND 4,~'-DDE 608, 6?5 72-55-g 10 NO 4.4'-DDD 608, 625 72-S4-8 ID ND PCB 1260 608, 625 11096-02-5 10 Toxapheno 608, 625 8001-35-2 10 ND coil box 1021 o 75 urbo_n._ .ovenue. w~sl.b~ry, n.y. 11590o(5161334/7770. ( 7181297/1449 c-3 " HENDERSON AND B ~?mo ~,m~z;~; ~'4 eT zpeclf~e ~onductLvLty · trina d/chloroethylen~ xylznee ............... ~ "~- 1,3,5 t r ~methylbenzene ~ " HENDERSON AND BODWELL CONSULTmO [NmNZrRS trina dleh~oropropeno * ~ 1,1,2 tr~chloroethene · ~ ~ chlorobenzene ......... ~ . ~ !,3,5 tr~methy3bentene _.~ ~4~T , ~ .............. .pea&fie eonduct~vlt, . ~I&A~ ....... * . HENDERSON AND BODWELL CONtraLTI6 [NOIN[E.~ ', , nytest enVironmental.· ":: '.'. 85-10314 San,pl e Nomber :_ lst ~ampl e._ .... Sample Size: ] mi. 57 Internal Std. Cones. Bromochloromethane ................. (total rigs.) 2-Bromo-l-chloropropane Surrogate Std. Cones. Oeuterochlorofo.rm__ 44 (total rigS.) Deuterobenzene 0euterotoluene ~;' Method, Oetection He(hod CAS Limit Found Parameter No. No. ._~(ppb)' ~ppb).. Acrolein 6~4 107-07-8 100 ND Acryloni (rile 624 107-13-1 IO0 ND Benzene 624 71-43-2 l0 ND Br~nodichloroeethane 624 75-27-4 10 ND Brom3form 624 75-25-2 10 B~ethane 6~4 74-83-9 I0 ND Car~on letrachloride 6~4 56-~3-5 ~0 ND Chlorobenzene 6?4 1~-90-7 lO ND Chlorodibro~thane 6~4 12a-48-1 ChloroeChane 6~4 75-O0-3 10 ND ~-Chloroethyl vinyl ether 6~4 1]0-75-8 10 ND Chiorofo~ 6~4 67-66-3 10 44 Cr 1 ~romethane 6~ 74 I .2-~ichlorohenzene 6?4 95-50- l lO J .3*~ich1orobe.~ene 624 541-73-1 · [pt~ published method detection limit C-4 HENDERSON AND BODWELL ~SUL'nNG E#OmEE.~ ',, I': :* ~ 7 _V_OLATI__L_E__C_O~I..P.O.U.H.D~.- cont'd. Sample Numbe~:. ls.t~ .S.R~_I.e ...... environmentol. !, ::. I ~, 85-10314 Method Detection Method CRS Limit ~ound Parameter No. _.Ng~ .... ~PP~2 .... ~P~)- Oichlorodiftuoromethane 624 75-71-8 lO ND l,]-Oichloroethane 624 75-34-3 lO ND 1,2-Dichloroethane $24 ]07-06-2 lO ND 1,l-Dichloroethylene 624 75-35-4 10 . ND 7rans-l,2-Dichloroethylene 624 156-60-5 lO ND ].2-Dichloropropane 624 78-87-5 10 ND ] ,3-Oichlorooropene 624 ]0061-02-6 lO ND Ethylbenzene 624 ]00-41-4 10 ND Methylene Chloride 624 7S*09-2 10 < ]0 l.l,2,2.Tetrachloroethane 624 7g-34-5 lO ND letrachloroethylene 624 ]27~18-4 10 ND Toluene 624 J08-88-3 10 ND l.],]-Trichloroethane 624 71-55-6 lO ND ],l.2-lrichloroethane 624 79-O0-5 10 ND lrichloroethylene 624 79-0]-6 ]O Nm lrichloro¢luoromethane 624 75-69-4 ]0 ND Vinyl Chloride 624 75-0]-4 lO ND *EPA published method detection limi! 1021 o 75 ur! x.~, .'~venue.wnsl~ ,V. n V 11591)0 (5!(,) 334/777(I ( 7 ! 8') 2~)7/1449 C-5 HENDERSON AND BODWELL CO~UL~O ;~OIN;;~s · c;nwronmenta LcII ~ [~lr, 85-10314 P£STI£]D[ COSqPOUND$: Sample Sample $tze:_~5~ ml~. Extrect Volume l,O _111 Volume lnj. $ ~J1 L Pe~ameter Method No. CAS I _~(~b) __ J a-BHC 608, 625 319-84-6 IO ND a-BHC 608. 625 319-85-7 10 ND 6-$~: 608, $~5 31q-B6-B 10 ND T-BHC 608, 625 5B-Bg-9 10 ' ND Chlordane 606, 625 57-74°9 10 ND Die1 drin 608, 625 60-57-1 10 ND o-Endosulfan 608. 625 959-98-8 10 ND a-Endosulfan 608, 625 33213-6S-9 10 ND Endosulfan sulfate 608, 625 1031-07-08 10 ND [ndrin 6OB, 626 72-20-8 10 ND [ndriD aldehyde 608, 625 7421-93-4 10 ND Heptachlor 608, 626 76-44-8 10 ND Heptechlor Epoxide 608, 625 1024-57-3 10 ND 4.4'-DOT 608, 625 50 29-3 10 ND 4.4'-DDE 608, 625 72-55-9 10 ND 4.4'-000 608, 625 72-54-8 10 PCB 1016 606, 625 12674-11-2 I0 ND PCB 1221 6OB, 625 111WI-26-2 10 ND PCB 12~ 6OB, 625 12672-2~-6 10 P£O 1260 608, 6~5 11096-62-5 10 To~aphene 608, 625 8001-35-~ lO ND · None detected e£PA published method detection limit coil box 1021 a 75 urbon ovenue, westl:~q y. n.y..i 1500a (516) 334/7770. ( 718~ 297/ C-6 HENDERSON AND BODWELL CO~SUL'nN. ,r#.,N~.S · ,_ "~--~-~nytest~ ' ........... ' ....... ' ..................... ' .... env~onmental. ; :'P* ]0 * :: 85-]0314 Hethod Detection Nethod CAS Limit found DichlorodifluorOmethane 624 75-7]-8 ]0 ND ].]-Dichioroe[hane 654 75-34-3 ]0 ND 1,2-Oichloroethane 624 107-06-2 10 ND l,]-Oichloroethylene 624 75-35-q lO ND Trans-l,~-Oichloroethylene 6?4 ]56°60-5 lO ND ],~-Oichloropropane 624 78-87-S lO ND 1.3-Oichloropropene 624 ]0061-02-6 )0 ND Ethyl benzene 624 ~00-41-4 10 NO ~thylene Chloride 624 75-09-2 10 ¢ ]0 I,l,2,2-1etrachloroethane 624 79-34o$ 10 ND letrach~oroe:hylene 6~4 127-18-4 )0 ND loluene 624 ~08-88-3 l0 ND l,],l-Trichloroethane 624 7]-55-6 10 HD ],l,?-Trichloroethane 624 79-00-5 I0 NP Trichloroethylene' 6~4 79-0)-6 )0 lrichlorofluoromethane 624 75-69-4 )0 ND Vinyl Chloride 624 75-01-a ]0 ND HENDERSON AND BODWELL ~o~u~ ~.mN~.S ' _ nytest PESTICIDE COMPOUNDS: Sample Number: 2nd Sample .... 5an~le Size: 500 els. Extract Volu~e_J.O __el Volume Inj. Limit rouml Parameter Method NO. CAS I _(.~b..~)_. Aldrin 608, 625 309-00-2 10' ND a-BHC 608. 625 319-84-6 10 B-BHC 608. 6ZS 31go85-7 10 HD A-BHC 6OB. 6~5 319-85-8 10' N~ v-BHC 608. 6Z5 58-89-9 10 ND Chlordane 608, 625 57-74-9 10 HD Dieldrin 6OB, 625 60-57-I 10 ND o -[ndosulfan 608, 625 959-98-8 10 ND e-Endosulfan 608. 625 33213-65o9 10 ND Endosulfan sulfate 608, 625 1031-07-08 10 ND Endrin 608, 625 72-20-8 10 ND [ndrin aldehyde 608, 625 '74~1-93-4 10 ND Heptachlor 608, 625 76-44-8 10 ND Heotachlor Epo~ide 608, 625 10~4-57-3 10 ND 4,4'-DDT 608. 625 50 g9-3 10 · NP 4,4'-DD[ 608, 625 72-55-9 10 ND 4,4'-DDD 6OB, 6~5 72-54-8 10 PC6 1016 608, 625. 17674-11-2 10 ND PCB 1271 60~, 625 11104-~B-~ 10 PC~ 1237 606, 6?5 II141-16-5 10 PC6 125( 60~, 625 11097-6~-1 PCB 1260 608, 625 11096-~?-5 lO Toxaphene 608. 625 8001-35-2 10 ND NC · None detected e£PA published method detection limit environmental,.,. Lcd~ t'.J,* 85.-10314 co bo~_.1021 o. 7__5. u~bon ovenue, weslLx~y, n.y 1.1590o(516) 334/7770. (718/297/1449 HENDERSON AND BODWELL ~ONSULTING ENGINEERS · ' est environmental Lob No 05-10314 RESULTS Sample Identification Pond 1st Sample 2nd Sample... 6.5g 6.70 6.46 70 c 10 < lO 4 34 30 pH at 20~C Color, Pt/Co Units Turbidity (NTU) Taste ................. Unobjectionable ................. Odo- (TON) O 0 0 Speclfice Conductance, 6B 207 182 /umhos/cm at Results in mg/1 Nitrate ( 0.04 2,61 1.83 Nitrite ( O.Ol ( O.Ol ( 0.01 Aa~onia 0.11 ¢ 0.04 0.39 Sulfate 37 38 31 Chloride ll 18 17 MBAS < 0.04 < 0.04 < 0.04 lotal Alkalinity 21 lG 16 Total SoliUs lO0 150 150 Hardness 13 82 64 2,a~D < O.OOl ( O.OOl < O.OOl 2,a,5-TP Silve~ < 0.001 < 0.O01 ¢ 0.O01 < ~ Less than colt box '1021 o 75 urban ovenue, westbury, ny 11590o(516) 334/7770. (718) 297/1449 C-9 HENDERSON AND BODWELL ¢ONSUL'nNa m~am,rr.S test _ liB LcJl~ NO 85-1031~t R[SULTS Sample Identification Results In ~9/I Pond 1st Sample 2nd Sample Cadmium ( 0.003 ¢ 0.003 ¢ 0.003 Sodium 6.2 12.8 12.7 Calci~ 3.75 ]5.35 13.51 Copper < 0.01 ¢ O.Ol ( 0.01 Iron 0.320 0.045 0.0~3 ptagne$ium 1.~17 10.55 7.50 Ptanganese 0.031 0.012 0.007 Zinc 0.128 0.016 0.012 Standard Plate Count. colonies/m1 Colifor~ HPH/IO0 mT. ¢ 2 < 2 ( 2 Less than coil box 1021 a 75 urban avenue, westbury, n y 11590o(516) 334/7770. (718) 297/1449 C-10 HENDERSON AND BODWELL oo"su~-'nN'~ ,,Na~.EE.S HENDERSON AND BODWELL COW~LTmO SNOmSSnS · COUNTY OF SUFFOLK Narch 27, 1985 Mr. James Milliken Henderson And Bodwell Consulting Engineers 120 Express Street Plain¥ie~, NY 11803 Re: Ange] Shores. Southold Dear Hr. Milliken: Enclose~ find resu)t s of analysis of samples collected by this office during the February 13, 1985 pumpage period for the test well at the referenced site. ] also enc)ose for your information a map summarizing pesticide results in the area. This should not be ~nferred to be an endorsement of any prellminary design of a public water supply system, as no proposal relating to valet dema~aS been submitted to date. If you hsve any questions, fee~ free~ontact me. Ve ,o s, ~ublic ~eal th~ng~ neet Dr ~nking~Water ~ection ~nclosure~ D-! HENDERSON AND BODWELL CONWLTmO Et~NEE~ ' D-2 HENDERSON AND BODWELL (:O~SUL~m ;,o,#;;.s - - chloroloFI ............ ~ 2 bromo 1 chloropropine 2,3 dich~oropropene °** ~ L ethylbenzene .......... _~_,~ i I)-3 HENDERSON AND BODWELL ~omu~.a ~a~N~ APPENDIX E HENDERSON AND BODWELL CONSULTINa [NmN[~S · E~EST L~BORATORIE$, INC. ENVIRONMENTAL TESTING ST? SHEFFIELD AYE. · N. BABYLON, N.Y. 11703 · (S16) 422.5777 Henclersc~ & Bo~ell 120 Bxp;ess plainv~e~, NY 1/803 A~c~: ~'z. j~nes C. lalllU~.n SOLI~]~ Or SR~U/:: /~Jel C~---,-*w: 4/17/85 ]!~ CLient P~n/, 10:30 ~ ~e~innin~ I~, 9:30 ~ ~p Test, Play 2, 1985 ~Cr.l~: 4/18/B5 ~!¢850888/). [,~BIC850888/2 ~MC850888/3 <1 <1 <2 <2 <2 ~2 ~2 <2 <2 <2 <1 <1 <1 <1 <l <l ¢1 <2 <2 <2 <1 <1 <1 <2 <2 <2 <1 <.1 <1 <1 <1 Ct <.l <1 <1 <2 <2 <2 E-1 HENDERSON AND BODWELL APPENDIX HENDERSON AND BODWELL CONSULTING ENGINEERS COUNTY OF SUFFOLK Hay 13, 1985 Re: Angel Shores Southold, H¥ II 971 Paul F-! HENDERSON AND BODWELL COmUL~NG ENm~EE.S ' Result Ltmtt coliform ......... ~ free ammonts ,,,,, ' ¢' nttrete .......... ~ ~0,0 mg/1 spnctflc cond .... I1~ ~ chlortde ......... ,;~ 260 ~g/l sulfate .......... ~ ~ 2SO 1run ............. ~ ~'*1 ~. 0.3 "* manganese , ..... ,, <1,1~ 0,3 copper ..,,, ..... , .::~. ~ ~,0 ' ztnc ............. ~ ...... I S.O ' sodtum. ...... .... !?.t; Result Ltmtt Result Iron &manganese combtned concentrotlon should not exceed 0.6 mg/1 Hoderately restricted sodtum dtet should not exceed 270 mg/1. Severely restricted sodtum dtet should not exceed 2079/1. Result ch]orebenzene ....... ,,,. etb~lbenzene ............ m-x~lene ~total xylenes .......... ~ bromobenzene .... ....... ~ oochlorotoluene m-chlorotoluene I~ ~-chloro~oluene ........ (TH~)/~I total chleroJolueno .... -- 1,3,S trJJethy]benzene · ~ 1,~,4 ~r~methylbenzene . (T~) ~ m,p-dtchlorobenzene .... o-dtchlorobenzene ...... · ~ p-dtethylbenzene ....... 1,2,4,5 tetremethylbenz' -- a 1,Z,4 trtchlorobenzene . -- ~ 1,~,3 trlchlorobenzene · -- (THH)~ 1.1,1,2 tetrachl'oethane 1,2,2~3 tetrach]'propane 1,1,1,2 tetrach]'propane -- 1,2,3 trlchlorupropane . -- vtnyl chlortde ........ methylene chloride ,,,, bromochloromethane .,,, 1,1 dtchloroethane trans dlchloroethylene. chloroform . ...... ,,,,, 1,2 dtchloroethane .... 1,1,1 trtchloroethane · carbon tetrachlortde...' 1 bromo 2 chloroeth&ne 1,2 dtchloropropane ... 1,1.2 trtchloroethylene chlorodtbromomethene ,, 1,2 dibromoethan~ ..... 2 bromo ! chloropropene tetrachloroethylene .~, , cls dlchloroethylene ,, freon 113 ............. dtbromometbane ........ 1,1 dtchloroethylene .. bromodtchloromethane .. 2,3 dlchToropropene ,.. cls dtchloropropene trans dtchloropropene . 1,1,2 trtchloroethane · Recommended ltmtts for vT~-chlortde and benzene are 5 parts per btTllon each. All other compounds 11sted have guldellnes of 50 ppb each, except for trlhalomethenes. The THH lSmtt is 100 ppb for the sum of the compounds. NOTE: ( symbol means "less than" Indicating n_~o detection F-2 HENDERSON AND BODWELL CONSUL?lNG ENGINEERS APPENDIX G TIME 0 1/2 1 1-1/2 2 4 6 HENDERSON AND BODWELL ~ONSULTING ENGIN£ER~ . TABLE 1 DEPTH FROM TOP OF WELL TO WATER LEVEL DURING PUMPING (MIN) 3' OBSERVATION 62' OVSERVATION 103' OBSERVATION WELL WELL WELL $ 9 ~0 15 20 3O 40 50 6O 8O 100 '120 150 8' 9-1/2" Bl 10-1/2" B' 10-1/2" B' 10-1/2" 8' ll" 11" 8' 8' 11-1/2" 8' 11-1/2" 9' 10-1/2" 12' 11-1/2" 9' 11-1/2" 12' 11-1/2" HENDERSON AND BODWELL CONSULTING ENGINEERS D£~TH ~ROM ?OP OF WELL ?O WATER LEVEL DURIN~ RECOVERY TIME (MIN) 3' OBSERVATION 63' OSSERVATION WELL WELL 103' OBSERVATID: WELL 1/2 1 1-1/2 3 4 5 7 9 11 13 15 20 B' 11" 8' 10-3/4" 0' 10-3/4" B' 10-3/4" B' 10-1/2" 10-1/2" 8' 10-1/4" 8' 10" .8' 9-3/4" 8' 9-'3/4" 9' 9' 10-3/4" 9' 10-3/4" 9' 10-3/4" 12' 11-1/2" 12' 11-1/2" ~ HENDERSON AND BODWELL CONSULTING ENGINEERS mr-COIEST LABORATORIES, INC. ENVIRONMENTAL TESTING 377 SHEFFIELD AVE. · N. BABYLON. N.Y. 11703, (516) 422.5777