The URL can be used to link to this page

Home My WebLink About2006 3rd Qtr 78 ;rA 1l2MGROUP ;A.~~ EX~G \,'u':r-:cv'; Ox:"'.': ".r: L"""l-flll.....: C<"'n.""'~ November 20,2006 Holzmacher, McLendon & Murrell, P.C. Il. H2M Associates, Inc. H2M Labs, Inc. Il. H2M Architects & Engineers, Inc. 575 Broad Hollow Road, Melville, New York 11747 631.756.8000, Fax: 631.694.4122 www.h2m.com James Bunchuck Solid Waste Coordinator Southold Solid Waste District PO Box 962 Cutchogue, New York 11935-0962 RECEIVED NOV 2 2 2006 Re: Cutchogue Landfill Groundwater Well Monitoring Program Sampling and Lab Analysis Program SOHT 06-01 ~oulhold Town Clerl Dear Mr. Bunchuck: In accordance with our engineering services contract dated April 4, 2005, our office completed a quarterly sampling program and laboratory analytical services for the groundwater monitoring well locations at the Cutchogue Landfill located on Middle Road. We provide herein the results of our findings for the routine parameters as identified in 6 NYCRR Part 360-2.11 (d) (6). Sampling Activities The sampling program was conducted by H2M on September 12, 2006. H2M's sampling protocols called for locating six (6) monitoring well clusters distributed around the perimeter of the landfill. See the attached site plan for the approximate location of the well clusters. Each well cluster is comprised of two (2) monitoring wells, one being screened in the upper depth of the aquifer (ex: 1 S, 3S, 4S, 5S, 6S & 8S) and one being screened in the lower depth of the aquifer (ex: ID, 3D, 4D, 5D, 6D, & 8D). Each water sample from a well was taken by purging three (3) static well volumes with a submersible pump, discharged ten (10) feet from the well and collected with a disposable bailer. Cross contamination concerns were eliminated by using these disposable bailers in conjunction with cleaning the submersible pump with laboratory grade biodegradable detergent, (i.e. A1conox) and with disposable nitrile gloves. The sampling program was conducted based on the specifications included in the Southold Landfill Groundwater Quality Assurance/Quality Control Plan. Analytical Results Each sample was analyzed by H2M Labs, Inc. for the routine suite of parameters as required by NYSDEC Part 360. Table I summarizes the groundwater well construction data to include surface elevation, top of casing elevation, depth to water, depth to bottom of borehole and groundwater well installation date. All groundwater wells are constructed with 2" diameter screens and risers and with a 6" diameter protective casing. Table 2 summarizes the field parameters collected during the sampling program along with the laboratory analysis for leachate indicators and inorganic parameters associated with the routine requirements. ENGINEERS Ill.. ARCHITECTS .. SCIENTISTS Ill.. PLANNERS .. SURVEYORS Il~MGROUP James Bunchuck November 20, 2006 Page 2 The laboratory test results were compared to the NYSDEC standards as identified in the Division of Water Technical and Operational Guidance Series (TOGS) (1.1.1) - Ambient Water Quality Standards and Guidance Values dated June ]998. A set of the H2M Labs, Inc. data packages are enclosed for your records as follows: . Sample Data Summary Package . Metals Data Package . Wet Chemistry Data Package Conclusions Based on a review of the groundwater well laboratory data and a comparison to NYSDEC groundwater standards indicate that several wells in the sampling program exceed the State groundwater standards. Table 3 has been provided which summarizes the exceedances for leachate indicators to include phenols and bromide and inorganic parameters to include iron, manganese and sodium. A review of the laboratory data from the quarterly monitoring program since Apri] 2005 shows continued exceedances in various wells for phenols and sodium. Upon review and approval of this draft report, our office will submit to NYSDEC the final report as required by the Landfill Closure Plan. If any questions arise on the sampling program or laboratory results please contact our office at 756-8000 (x]61O). Very truly yours, HOLZMACHER, McLENDON & MURRELL, P.C. k-A AJ~ George W. Desmarais, P.E. Vice President GWD:gjc Enclosures cc: Town Board (w/encl) Patricia A. Finnegan, Esq. (w/encl) X:\SOHT (Town of Southold)\2006\JB 11-20-o6.doc 1l~,"GROUP Table 1 Town of Southold Sanitary Landfill Groundwater Monitoring Wells Sampling Program September 2006 MW-IS MW-1D MW-3S MW-3D MW-4S MW-4D MW-5S MW-5D MW-6S MW-6D MW-8S MW-8D Surface Elevation (ft.) "} 44.31 44.26 46.67 46.96 60.95 60.99 65.91 66.16 53.13 53.27 51.98 51.58 Riser Diameter (in.) 2 2 2 2 2 2 2 2 2 2 2 2 Screen Diameter (in.) 2 2 2 2 2 2 2 2 2 2 2 2 Casing Diameter (in.) 6 6 6 6 6 6 6 6 6 6 6 6 Top of Casing Elevation 1ft.) 44.83 44.88 49.50 49.19 62.92 63.03 68.14 67.64 55.77 55.71 55.29 54.16 Depth To Water (ft.) (2) 40.19 41.66 43.62 43.32 44.62 46.31 42.29 41.17 48.05 46.85 49.35 50.20 Depth To Bottom (ft.) 54.0 152.0 55.5 123.0 71.0 150.0 76.0 136.0 61.0 144.0 60.0 138.0 Installation Date 5-1-91 6-18-91 12-14-02 1-9-03 5-7-91 5-30-91 5-3-91 5-22-91 12-12--02 12-23--02 12-19-02 12-19-02 Notes: (1) Elevations taken from Groundwater Monitoring Well Plan dated September 21, 2005 prepared by L.K. McLean Associates, P .C, Brookhaven, N.Y. Data reference- N.G.V.D. 1929 (2) Measurement taken on September 12, 2006 from the top ofPVe riser X:\SOHT (Town ofSouthold)\2006\SOHT 06-01 (Southold Landfill)ITahleslTable 1 (June).doc 1-1~,"GROUP Table 2 Well Sampling Resnlts uJ Town of Southold Sauitary Landfill Groundwater Mouitoriug Wells Sampling Program September 2006 UNIT MW-ID MW-1S MW-3D MW-3S MW-4D MW-4S MW-5D MW-5S MW-6D MW-6S MW-8D MW-8S NYSDEC Standard (2) Field. Parameters(l) Static Water Level IT 98.34 14.81 79.68 11.88 88.69 15.38 98.83 12.71 97.15 12.95 87.80 10.65 Specific Conductance mS/em 5.514 4.657 12.015 10.843 7.521 8.556 7.517 7.384 5.896 5.450 10.927 9.365 Temperature oC 13.8 14.1 14.5 14.3 14.1 14.0 13.9 14.2 14.4 14.7 14.8 14.6 Floaters f Sinkers PH s.u. 7.14 8.34 8.68 8.41 7.90 8.47 8.36 7.55 8.03 7.02 8.16 8.56 Eh mv 29 21 -26 -21 5 3 13 17 -28 -25 20 18 Dissolved Oxygen mg/l 5.8 7.5 11.0 10.2 7.8 8.3 8.1 9.0 9.0 9.3 10.7 10.3 Field Observations Turbidiy NTIt 43.0 30.8 28.9 44.8 11.1 45.6 49.1 35.3 46.8 48.9 35.0 34.0 Leachate Indicators Total Kjeldahl Nitrogen mg/l <0.1 <0.1 0.11 <0.1 1.21 1.56 0.12 1.37 0.31 0.54 0.32 0.36 Ammonia mg/l <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 <0.1 0.40 <0.1 <0.1 <0.1 <0.1 2 Nitrate mg/l 5.42 4.84 5.30 4.83 2.17 2.11 5.33 2.18 1.58 1.60 1.69 1.65 10 Chemical Oxygen Demand mg/l <10 <10 <10 <10 <10 <10 <10 <10 11.0 11.0 46.2 46.2 Biochemical Oxygen Demand mg/l <2 <2 <2 <2 <2 <2 <2 16 <2 <2 <2 <2 Total Organic Carbon mg/l <I <I <I <I <I <I <I <I <I <I <I <I Total Dissolved Solids mg/l 221 186 199 185 164 175 185 166 116 115 III 129 Sulfate mg/l 92.0 25.1 35.3 24.8 41.0 39.7 43.5 47.5 13.5 13.1 12.4 30.5 250 Alkalinity mg/l 25.2 10.2 <I 10.2 43.6 43.6 <I 74.2 62.9 61.5 61.4 42.8 Phenols uoll <5 <5 <5 <5 <5 - <5 <5 <5 <5 <5 I Chloride mg/l 23.9 64.4 64.4 64.9 15.2 14.9 66.0 29.5 4.4 4.4 4.6 4.6 250 Bromide mg/l <0.5 <0.5 <0.5 0.6 1.3 <0.5 <0.5 <0.5 0.6 <0.5 2 Total Hardness (as CaC03) mg/l 160 46.0 46.0 52.0 80.0 80.0 50.0 84.0 75.0 72.0 76.0 72.0 X:ISOHT (Town of Southold)\2006\SOHT 06-01 (Southold Landfill)ITableslTable 2 Sept 06 data 1l~,"GROUP Table 2 Well Sampling Resnlts (') Town of Sontbold Sanitary Landfill Gronndwater Monitoring Wells Sampling Program September 2006 (cont) UNIT MW-1D MW-IS MW-3D MW-3S MW-4D MW-4S MW-5D MW-5S MW-6D MW-6S MW-8D MW-8S NYSDEC Standard (2) Inorganic Parameters Cadmium ug/l .24B O.14B 0.35B <0.12 0.37B <0.12 0.58B <0.12 0.14B 5 Calcium ug/l 28400 10100 14700 10100 14700 18800 19000 19100 19300 Iron u 139 <17.8 <17.8 33.8B 116 300 Lead ug/l I.2B I.2B <1.1 1.6B I.5B 25 Magnesium ug/l 13800 10400 4560 B 4590B 4630 B 35,000 Manganese ug/l 6.6B 300 Potassium ug/l 2260 B Sodium ug/l 20,000 Notes: (I) Samples collected in field on September 12, 2006 (2) NYSDEC standard as identified in Division of Water Technical and Operational Guidance Series (TOGS) (I. 1. I)-Ambient Water Quality Standards and Guidance Valves, dated June 1998. (3) J or E Qualifier indicates estimated quantity. B Qualifier indicates value is less than the CRDL but greater than the 1OL. Est. indicates value estimated from COD, Exceeds NYSDEC Standards X:ISOHT (Town of Southold)\2006lS0HT 06-01 (Southold Landfill)ITableslTable 2 Sepl 06 data I-i:;jlMGROUP Table 3 Town of Southold Sanitary Landfill Groundwater Monitoring Wells Sampling Program Excursions (1) September 2006 NYSDEC Parameter Unit MW.1S MW-1D MW-3S MW-3D MW-4S MW-4D MW.5S MW-5D MW-6S MW-6D MW-8S MW-8D Standard I') Phenols ug/l 49.7 39.6 1 Bromide moll 2.2 4.7 2 Sodium ul!!1 44,000 20,200 44,100 44,500 44,300 23,000 20,000 Iron ul!!l 331 482 325 300 Manaanese ul!!l 1,980 1,970 1970 2590 2540 2,750 2,700 300 Notes: (1) For samples collected September 12, 2006 (2) NYSDEC Standard as identified in Division of Water Technical and Operational Guidance Series (TOGS) (1.1.1) - Ambient Water Quality Standards and Guidance Values, Dated June 1998. x:SOHT 06-01\Table 3 LEGEND A GROUNDWATER MW-6S" MONITORING WELL 300 150 0 --- - - SCALE IN FEET 'NOTE;: WELL SVMBOLS NOT TO SCALE; SOUT1lOLD I.ANIlFILL CUTCHOGUE, NEWYORK GROUNDWATE!R MONITORING WELL LOCATION MAP , , -. --- '-,.