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Part 360 Landfill Closure Investigation Work Plan - 03/1995
1 1 1 - 1,_..;;;FOiW-3;a ' PART 360 1 LANDFILL CLOSURE INVESTIGATION WORK PLAN 1 Southold Landfill , Town of Southold Suffolk County, New York 1 1 Dvirka and Bartilucci 1 Consulting Engineers i MARCH 1995 ' PART 360 LANDFILL CLOSURE INVESTIGATION WORK PLAN ' SOUTHOLD LANDFILL TOWN OF SOUTHOLD,NEW YORK PREPARED FOR TOWN OF SOUTHOLD ' BY DVIRKA AND BARTILUCCI ' CONSULTING ENGINEERS SYOSSET,NEW YORK ' MARCH 1995 ♦1314\A0314501.doc I PART 360 LANDFILL CLOSURE INVESTIGATION WORK PLAN ISOUTHOLD LANDFILL ITABLE OF CONTENTS Section Title Page I1.0 INTRODUCTION AND PURPOSE 1-1 I2.0 BACKGROUND AND HISTORY 2-1 2.1 Site Location and Background 2-1 I 2.2 Site History and Previous Investigations 2-5 3.0 LANDFILL CLOSURE INVESTIGATION FIELD PROGRAM 3-1 I 3.1 Introduction 3-1 3.2 Field Program 3-2 3.2.1 Groundwater Sampling and Analysis 3-2 I 3.2.2 Explosive Gas Survey 3-7 3.2.3 Surface Leachate Survey 3-10 3.2.4 Vector Survey 3-10 3.2.5 Air Monitoring 3-11 I4.0 SITE ANALYTICAL PLAN 4-1 I4.1 Objective and Scope 4-1 4.2 Data Quality Objectives 4-1 I 4.2.1 Regulatory Programs and Applicable Standards 4-1 4.2.2 Required Detection Levels 4-1 4.2.3 Data Precision 4-2 I 4.2.4 Data Accuracy 4-2 4.2.5 Data Representativeness 4-2 4.2.6 Data Comparability 4-2 I 4.2.7 Data Completeness 4-6 4.3 Analytical Quality Assurance (AQA) and Analytical Quality Control (AQC) 4-6 I 4.3.1 AQA/AQC Goals and Protocols 4-6 4.3.2 Quality Objectives 4-7 4.3.3 Qualifications, Responsibilities and Authorities of Personnel 4-7 I 4.3.4 AQC Procedures 4-8 4.3.5 Standard Operating Procedures (SOPs) 4-9 4.3.6 QC Samples and Blanks 4-9 I 4.3.6.1 Matrix Spikes/Matrix Spike (MS/MSD) Duplicates 4-10 4.3.6.2 Trip Blanks (Travel Blanks) 4-10 4.3.6.3 Field Blanks (Field Rinsate Blanks) 4-10 I4.3.6.4 Method Blanks 4-11 1 *1314\A0314501.doc i I ITABLE OF CONTENTS (continued) 1 Section Title Page I 4.4 Field Sampling Procedures 4-11 4.4.1 Sampling Equipment 4-12 4.4.2 Sample Preservation and Shipping 4-12 1 4.4.3 Health and Safety 4-12 4.4.3.1 Decontamination Procedures 4-14 4.4.3.2 Control and Disposal of Contaminated Material 4-15 I4.4.4 Groundwater Sampling 4-16 4.4.5 Surface Leachate Sampling(Liquid) 4-17 4.4.6 Surface Soil Sampling (Leachate Stained Soil) 4-17 I4.4.7 Air Monitoring 4-18 4.4.8 Field Management Procedures 4-18 I 4.4.8.1 Sample Information Record 4-19 4.4.8.2 Chain of Custody 4-20 4.4.8.3 Split Samples 4-22 I 4.4.8.4 Field Log Book 4-22 4.4.8.5 Daily Field Activity Reports 4-23 4.4.8.6 Field Changes 4-23 I 4.4.8.7 Air Monitoring 4-23 4.4.9 Calibration Procedures and Preventative Maintenance 4-23 4.4.10 Field Sampling Corrective Action 4-24 I 4.5 Laboratory Procedures 4-24 4.5.1 Laboratory Corrective Action 4-25 4.6 Data Quality Assessment 4-25 1 4.6.1 Data Validation 4-25 4.6.1.1 Performance and System Audits 4-27 4.6.1.2 Data Validation Corrective Action 4-27 I4.6.2 Data Usability Analysis 4-28 4.7 Field Management Forms 4-29 Location Sketch Form ISample Information Record Receipt for Samples Form I Daily Field Activity Report Field Change Form Air Monitoring Form I Daily Equipment Calibration Log 4.8 Monitoring Parameters Summary 4-30 4.9 NYSDEC Requirements for a Data Validator 4-39 I I *1314\A0314501.doc 11 1 TABLE OF CONTENTS (continued) Section Title Page 4.10 NYSDEC Sample Identification, Preparation and Analysis Summary Forms 4-40 4.11 Data Validation Reporting Forms 4-41 4.12 Data Quality Requirements and Assessments 4-42 4.13 QA Officer Resume 4-43 5.0 REPORTING REQUIREMENTS/FORMAT 5-1 5.1 Reporting Requirements 5-1 1 5.2 Reporting Format 5-1 I List of Appendices Part 360 and Phase II Hydrogeologic Investigation Report, Southold Landfill, October 1991 A NYSDEC Expanded Parameters B Summary of July 1992 and January 1993 Groundwater Quality Assessment Report Laboratory Data C List of Figures 1 2-1 Site Location Map 2-2 2-2 Site Plan and Current and Former Landfill Operations Map 2-3 2-3 Zoning Map 2-4 3-1 Groundwater Sampling Point Locations 3-3 3-2 Temporary and Permanent Explosive Gas Monitoring Points and Ambient Air Monitoring Point Locations 3-8 r I 1314\A0314501.doc iii TABLE OF CONTENTS (continued) List of Tables 1 3-1 Groundwater Monitoring Well Depths 3-4 3-2 Analytical Program Baseline Parameters 3-6 1 4-1 Data Quality Requirements 4-3 4-2 Sampling Equipment 4-13 1 4-3 Monitoring Parameters 4-31 4-4 Leachate Parameters 4-44 1 1 I I I I I I I I ' 41314\A0314501.doc iV Cl) 1 10 � o 1 • 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1.0 INTRODUCTION AND PURPOSE The Town of Southold plans to close the former Southold (Cutchogue) Landfill. In order ' to implement this action, the Town is required by the New York State Department of Environmental Conservation (NYSDEC) to conduct a Closure Investigation under the 6 NYCRR ' Part 360 Regulations and the Stipulation Agreement between the Town and NYSDEC dated October 5, 1994. Through previous investigations, a significant portion of the Closure ' Investigation requirements have been completed. Therefore, the purpose of this investigation is to fulfill the remaining requirements of the Part 360 Closure Investigation by further defining groundwater quality and flow direction at the landfill site and determining the presence or absence of explosive gases, surface leachate seeps and vectors. The purpose of this Closure Investigation Work Plan is to provide a detailed description of the investigation field activities, including the sampling and analytical quality assurance/quality control program. I I i I *1314\S0314501(R02) 1-1 Cl)I n 1 5'I N 2.0 BACKGROUND AND HISTORY 2.1 Site Location and Background The Southold (Cutchogue) Landfill is inactive and comprises approximately 45 acres (excluding the 17 acre area north of the landfill which was formerly used for mining/borrow operations). The landfill site is located between Oregon Road and North Road (also known as ' Middle Road and County Road 48) to the north and south, respectively, and Cox Lane and Depot Lane to the east and west, respectively, in the Town of Southold, Suffolk County, New York (see Figure 2-1). The landfill is owned and formerly operated by the Town of Southold. A site plan of the landfill is shown in Figure 2-2. The Southold Landfill is situated in a rural, agricultural area in Cutchogue, approximately 2.5 miles east of Mattituck and 8 miles west of the Incorporated Village of Greenport. The landfill is located in an agricultural-industrial zoned area, with the existing landfill zoned LI (Light Industrial) (see Figure 2-3). Directly adjacent to the northern, eastern and southern boundaries of the landfill is LI zoned land, and LIO (Light Industrial/Office Park) zoned land is located adjacent to the western boundary. Further to the north, south, east and west of the landfill is A-C (Agricultural ' Conservation)zoned land. ' The Town of Southold initiated operations at the landfill site in 1920 for the disposal of municipal solid waste, refuse, debris and scavenger (septic system) waste and operated the landfill tcontinuously until October 1993 when it closed. Figure 2-2 shows the location of present and former landfill operations. As shown in this figure, the landfill site includes a large excavated area in the northern portion of the site which was used to obtain cover material for the past landfilling operation, and two abandoned scavenger waste lagoons along the western border of the landfill. The lagoons formerly accepted septic system waste from both commercial and residential sources. 1 1314\A0315501(R02) 2-1 rS j .v o� A Duck Pond'4•• „aa, NEW YORK %Pint;;,;__.._.. _ �so��l , ;��� , 4- / -a' .moi \ ��) '� �4, t. �� coo 63: '��Bq�O '.v • �� aa� � �\ ��� :t � � QUADRANGLE LOCATION •. .1/ N \ \aa'', \ s6 SOUTHOLD, {,h N,/ sr; �`,1.` ��.� °i LANDFILL - �/ - s l �au�d \+ \',z N o . �' v � do A°j �� -1 � C . N' ‘a.' � C° / / N �s.* �? — off, \� O� \. + -. L F. 36, ; °� Q.� " _j A \� , \' `•P s� y / ,`may -�;: X40Ct ,eL/ \,%' ; c e • \ Q •D a . i\9 M \ � \� SacreOdieart ` �\J • • -- % o -\ \:%, / \ \ 109 P� . o�ac - Cutchogue _ �, ': `�1. y e q N • oG� • sy a2; ' i ��/ N . \ \ \N. I "\ . . / ,,. °, 4. - . \\ -7-4s V-4' ' --'- ',\:"..-iss, --:- 6 Ni 3 2..7/ :' • . • I -' . .c'.r' f (`' a 1. \ —___,_ J • iG,,. I \�---\\ \c '\ ��1�"r' ^.��. ,. " ._. ii North Fork S.+• A8 \ _ 20 a Country Club BM ISCALE IN FEET 0 10o0 2000 SOURCE: USGS• MATTITUCK HILLS I SOUTHOLD QUADRANGLES EiliSii 1 TOWN OF SOUTHOLD SOUTHOLD LANDFILL I ar SITE LOCATION MAP • b �wr__ FIGURE 2 — 1 OOill,.0._ ll °L' It °� ❑ / QII EDI I U0 .....-- 0 -_-_:-_-_:\ 0AECi jRi❑ ��—Th, AE- - pN \\ / \\ \\ y , \ 0 \ \\ \\ \\\ qo \\ I; ",3 \ -:‘ , \\ \,iil \ \,. `\\0 x \\ \ \ \\ \` BORI1OW�AREA/ *--•�''-' \\ \ I \ Ell I. \\ \ \ \ ) \ I k\\ _ \ Dri - --- //%8D LOADING \\\ RECENT u / AND STAGING \ \ LANDFILL EA \\ i\\AREA CJ \ // 1 I \,��� _ __= I FORMER SCAVENGER /,- L — 1 Q WASTE LAGOONSi 1 cL j am•I iN \1 I \ / I L- i, 'OVERHEAD 1 \ \j1 ( /, / /�/ LINEs RIC / ���_/ /// r\ \\ STATION R RECYCLABLES \ LEAF AND WOOD �. G L � / \ \ CHIP COMPOST AREA / \1 /-------7,-- \ \ `- —� WASTE EiOILTANKS `,, _ . z _�- N \\ --- CHOUSEHOLD HAZARDOUS WASTE - / ------- -) •Ai,r r / CONTAINMENT FACILITY \ \ ,:•:\ c L CTION FORMERDURNINAREA \\ \ -��\ CENTER �1 \ Q Cp \ \ \\ O \ y/� WEIGHING 0 p \\ ��\ f C3 STATION I i ) ) , \ \V. :(3, '' Ei::\ , STORAGE \1 0 \\ '� \\ p 4 GARAGE c'- ',��� \1 \\\ Y Rpt\ C� \\ `- n 4 \\\\% `� I COUNT LEGEND C� 1 \ \ ;s•;:::;•. EXISTING BUILDING 1 \ v / ON LANDFILL SITE \ Z , ` • x x EXISTING FENCE LINE • \\ PROPERTY LINE • \\ r \\ �I \\ • \\ • \\ --- NORTH \\\ SCAL100 E N tf ETT 00 300 TOWN OF SOUTHOLD SOUTHOLD�� LANDFILL 6 Dvirka and Bortilucci SIT PLAN A� CURRENT Consulting Enginssn AND FORMER LANDFILL OPERATIONS MAP FIGURE 2 – 2 A Division of William F. Cosulich Associates P.C. p --- -- - - - "R-40 . R-89j 4°' -_�-i. -, 1 �- 'l-8��"�-_ ;i� �'- 800 : E A A-C '. A- C __ . • a A 1 1 SOUTHOLD LANDFILL L. .:, ;:i.7.;....i............. A_C J , L- ; `<,«;.F` : A-C - \. _—j . -•. \-. .�/ i � T_� 11 J \ , -\........., , . LEGEND I ( A-C ( AGRICULTURAL CONSERVATION 1 R-40 RESIDENTIAL LOW DENSITY AA IR-801 RESIDENTIAL LOW DENSITY A R R RESORT/RESIDENTIAL tLB LIMITED BUSINESS L I 0 LIGHT'INDUSTRIAL/OFFICE PARK I L 1 LIGHT INDUSTRIAL SCALE IN FEET800 0 800 1600 I SOURCE:TOWN OF SOUTHOLD ZONING MAP,18a! TOWN OF SOUTHOLD SOUTHOLD LANDFILL • band ZONING MAP awahumoi FIGURE 2 — 3 I Currently portions of the site are used for a temporary municipal waste transfer station, construction and demolition debris (C&D) transfer station, recycling drop-off station, yard waste composting and tire loading. A majority of the site, however is unused. I Since the landfill initiated operation prior to the promulgation of the Part 360 Regulations, it was constructed without a liner. Also, portions of the currently required 100 foot buffer zone between the landfill and its property boundaries have been used for landfilling solid waste in the past prior to the current requirements. In 1984, the Town of Southold requested a variance for an exemption from these requirements as specified in the Part 360 Regulations (Section 360-1.7). The variance was requested on the basis of compatible surrounding land use, which is predominantly agricultural, vacant land, sand mining and only limited residential land, and the significant adverse ' economic and environmental impacts which would be associated with excavating landfilled refuse. This variance, however, was not granted by NYSDEC. 111 111 2.2 Site History and Previous Investigations ' As previously discussed, the Town of Southold began operation of the landfill in 1920 for the disposal of municipal solid waste, refuse, debris and scavenger waste. Subsequent to the hurricane of 1938, large quantities of construction and demolition debris, land clearing debris, as well as other materials were landfilled in the southwestern portion of the site. This area was also used for burying old automobiles. In 1974, Holzmacher, McLendon and Murrell, P.C. (H2M), under contract to the Suffolk County Department of Health Services (SCDHS), conducted a subsurface investigation at the Southold Landfill in order to determine the depth of fill material and municipal waste at the site. Three core borings were drilled at separate locations within the existing landfill area (approximately at the center and south-central portions, and west-central border of the current landfill). Information obtained from the borings indicated that the landfill had been excavated to depth of approximately 3 111 feet above the water table and subsequently landfilled with municipal waste and other fill material. a 1314\A0315501(R02) 2-5 1 In October 1976, a methane gas survey was conducted at the landfill. Well pointswere e ' driven into the ground in the northern, southeastern and southwestern portions of the landfill and measured for methane gas. The results of this survey showed low levels in comparison to the Lower Explosive Level (LEL) for methane. In 1985, Woodward-Clyde Consultants prepared a Phase I Investigation at the landfill for the New York State Department of Environmental Conservation. In the summer of 1986, the scavenger waste lagoons at the landfill were abandoned upon commencement of operations at the Southold Scavenger Waste Pretreatment Plant. Sludge removal from the scavenger waste lagoons was performed during the summer of 1987. Between 1980 and 1984, five monitoring wells (S-76687, 71045, 69761, 68916 and 68831) were installed on the landfill site and sampled by SCDHS. In December 1990, the United States Environmental Protection Agency (USEPA) conducted a site investigation at the landfill. A total of nine soil samples were collected and analyzed for volatile and semivolatile organic compounds, pesticides and metals. The results of this investigation are presented in the Part 360 and Phase II Hydrogeologic Investigation Report, Southold Landfill, October 1991, contained in Appendix A. 111 In July 1991, Dvirka and Bartilucci Consulting Engineers ineers conducted a Part 360 and Phase II ' Hydrogeologic Investigation. The investigation consisted of a soil gas survey, installation of 14 monitoring wells at seven well cluster locations, subsurface soil sampling and logging, groundwater sample collection, downhole geophysical logging and permeability testing. ' The samples were analyzed for Target Compound List (TCL) +30 parameters utilizing EPA SW846 Methods 601/602, 8240, 8270 and 8080 for TCL organics and NYSDEC 1989 Analytical Services Protocol (ASP) for Target Analyte List (TAL) inorganics. These parameters include ♦1314\A0315501(R02) 2-6 1 volatile and semivolatile organic compounds, base neutrals, acid extractables, pesticides/PCBs, P metals and cyanide. ' Supplement to the July 1991 Part 360 and Phase II Hydrogeologic Investigation, Dvirka and Bartilucci Consulting Engineers conducted two groundwater sampling events in July 1992 and January 1993. During both of these sampling events, samples were collected from the 14 monitoring wells installed as part of the Part 360 and Phase II Hydrogeologic Investigation and two monitoring wells (S-68831 and S-68916) installed by the Suffolk County Department of Health Services. The results of these sampling events are presented in Appendix C. As a result of the findings of these investigations, it was determined that a weak, limited plume is emanating from the Southold Landfill. This was supported by contaminants identified in the groundwater. These contaminants were 1,2-dichloropropene and 1,2-dichloroethane in low ' concentrations; iron, magnesium, manganese and sodium in concentrations not substantially above ambient conditions; aldicarb; the leachate parameters: ammonia, nitrate and phenols; and dichloropropane. In addition, based on soil samples obtained during the Part 360 and Phase II Hydrogeologic Investigation and the USEPA sampling program, only a few organic contaminants in low concentrations (toluene, 4-chloroanaline, aldrin and 4,4'DDE) and some inorganic contaminants at slightly elevated levels (aluminum, barium, copper, iron and zinc) were found on-site in the former scavenger waste lagoons. However, none of the organics and relatively low concentrations of inorganics were found in the groundwater underlying and downgradient of the landfill. As a result of these findings, the Town of Southold petitioned the NYSDEC to delist the site from the State Registry of inactive hazardous waste sites and the landfill was removed from the list of potential (Class 2a) hazardous waste sites by DEC in October 1993. ♦1314\A0315501(R02) 2-7 I 0 I 6. I 5 I W I I I I 1 I I I I I I I I I I 3.0 LANDFILL CLOSURE INVESTIGATION FIELD PROGRAM 3.1 Introduction As discussed above in Section 2.2, a Part 360 and Phase II Hydrogeologic Investigation was conducted at the Southold Landfill in July 1991. Supplemental groundwater sampling was ' also conducted in support of this investigation in July 1992 and January 1993 (see Appendices A and C for the results of these investigations). As a result, several required and optional elements of the Part 360 Closure Investigation criteria [360-2.15(a)(1)] have been completed and ' recognized by NYSDEC. These elements are contained in the Part 360 and Phase II Hydrogeologic Investigation Report contained in Appendix A. Specifically these elements are: • Literature Search - 360-2.11 a 2 ' • Surficial Geologic Mapping - 360-2.11(a)(3) • Water Well Survey - 360-2.11(a)(5) • Geophysical Survey - 360-2.11(a)(6) • Monitoring Wells - 360-2.11(a)(8)(9)(a) through 360-2.11(a)(8)(vi)(c) • Geologic Sampling - 360-2.11(a)(9)(i) and (ii) • Logs- 360-2.11(a)(10)(i) through (iv) • In Situ Hydraulic Conductivity Testing - 360-2.11(a)(11) Consequently, these elements are not included as part of this Closure Investigation Work Plan. However, the results of the previously conducted elements will be presented in the Closure Investigation Report. Section 5.0 of this Work Plan discusses the Closure Investigation Report requirements and format. ♦1314\S0315501(R02) 3-1 3.2 Field Program ' The following is a discussion of the planned field program for the Southold Landfill Closure Investigation. 3.2.1 Groundwater Sampling and Analysis ' Groundwater samples will be collected from the 18 existing wells that are part of the landfill monitoring system. The data obtained from the analysis of these samples will be used to ' determine the groundwater quality at the site. The locations of the wells to be sampled are shown in Figure 3-1. Table 3-1 lists the 18 wells to be sampled. Construction of the wells installed asart of the Part art 360 and Phase II Hydrogeologic ' Investigation consisted of a 2-inch diameter stainless steel screen and threaded, flush joint PVC casing. Ten feet of stainless steel wire wrapped screen with 0.02 inch openings were installed in each deep borehole and 20-foot screens were installed in each shallow borehole (5 feet above the water table and 15 feet below) except for MW-6S, which, in order to mitigate methane from ' entering the screen zone, was modified to a length of 15 feet. Most of the screen was installed in the saturated zone, in order to minimize the amount of screen exposed to the vadose zone. A 2-inch diameter PVC riser pipe extends from the top of the screen to 2-1/2 feet above ' ground surface and is contained in a steel protective casing with a locking cover, except for MW- 1S and MW-1D, which were installed with flush mount protective casings. The annulus of the borehole in the area of the screen was sand-packed to a height of 2 feet ' above the screened interval with clean silica sand in conformance with Part 360 requirements. A finer grained sand pack material (100% passing the No. 30 sieve and less than 2% passing the No. 200 sieve) 6 inches in thickness was placed on top of the sand pack between the sand and the ' bentonite seal. A 3-foot seal of thick PUREGOLD bentonite slurry was placed immediately above the filter material using a tremie pipe. The remaining annulus was grouted to the surface 1314\S0315501(R02) 3-2 If i ril 0 __---' 1 'L i 1 ___.---- , - , , 1 _ I I AV voei PV , 1 [ j \\ ..1 . ----\ I\\ 11 0 Pk 0 0 ..../\\ \\ \\ \\ \\ \ A\ MW-4 — -- \ \\\\\ (- , \\ \ — - - .\\ \\\\ \\\ —/ 4 \ _ • MW-5 \\\\,\\-\-c\)\ )\ \\ \ ecxlz . ,.., ----- \\ \\ V —s--4-1 _t—te---* \\ / \ c=11 r• ii. \\ \ I \ 'a. cr% \\ --________, , \\ 1 • —___,/ i I , \ \\\ -'_:5 / \ \ \ \\ \ ‘\\ // z/ BORROW AREA \ \I li \ i /\\ \ I / i MW-2 \\ I I --i •• \ \ i \ \ --:;:-/ \' ' Q // \,_ -- \ S-68831/, .--- --- - - ----- .-; - - -,/... \ \ \ MW- 3 0 4 -.., / \ \ E -' --_-_------1-68916// \ c _ \ \ C-3 t • // \ , \ ET7 - — / -- \ \ t / \ : // \ \ / N'•-• \ MW-6 / 4 1 N \ __,— -- —-_-_---:-- ------- I I /- ( „,„--- -:_-_-_•_-_-:-...7-- \ i .' ) \ \ CA I I I i , .. ._,// /_ ) \ \\ 1 ..._/ • tt \ \\ 7 LANDFILL A-14.. / OVERHEAD -.:----- -, Ii ELECTRIC \ 1 \ ' /1 \ -- / ' 0. LINES 1 \ , z i \ z ( -%--- \ / \ 7_,- / r\ \ / __-- -- . \ ,./,- , , \ \ \ .....-------'j....-- ----. / — G---'t ,--',....- \ ' , / ‘ ------7,---- \ \ ..- / 1 ..- ... , WASTE OIL \ 1 / ----- - \ STORAGE TANKS \ \ i ---7 /- I L.--——— - __________ _, 7 Agh. - i / ----- ,--, I CENTER\ A ,,,, .I: ?.... - ,... . 6 1 , r t r‘ej \ S- 10 \\\ \, 1 -%------- - COLLECTION \ 41/14, ; ,‘ \ • \\ \ , •ti-tri 0 WEIGHING --- --- 0- 0 €:-- ) \ ‘P- 1.11 STORAGE \1 \ ....-- GARAGE .=:=3 _1 '•-•?="-" C.3 \ (......„...,./1(00° 1 , ouri LEGEND t t C .-,-• \ \ __' > - -- MW--ft ‘• / - :- ------ EXISTING BUILDING -\ 1 s. --;-:_,-- ------Th ••''' ON LANDFILL SITE ------- - -- \ \\ --- - EXISTING FENCE LINE r MW-I .. GROUNDWATER MONITORING WELL CLUSTER \\ \\ - fie \ SCALE IN FEET o 100 100 SOO 'I\ IMO .liM IMIM TOWN OF SOUTHOLD SOUTHOLD LANDFILL 45, :gra v Iliwillucel GROUNDWATER SAMPLING POINT LOCATIONS CONSPIONEERS FIGURE 3 - I ULTING I Table 3-1 ' GROUNDWATER MONITORING WELL DEPTHS Well Number Depth Below Ground (feet) MW-1S 52 1 MW-1D 152 MW-2S 27 MW-2D 85 MW-3S 55 MW-3D 125 MW-4S 73 tMW-4D 150 MW-5S 77 MW-5D 136 MW-6S 56 MW-6D 145 MW-7S 50 MW-7D 125 S-68831 51 S-68916 102 S-69761 103 S-71045 65 I ♦1314\S0315501(R02) 3-4 with a PUREGOLD bentonite slurry. PUREGOLD bentonite is tested and warranted to be free of organic and inorganic contaminants. The samples collected from the wells will be field tested for temperature, conductivity, pH, Eh, dissolved oxygen and turbidity. One round of groundwater sampling is scheduled as part of the Closure Investigation. ' Sample analysis will consist of the Baseline Parameters as defined in the Part 360 Regulations. Table 3-2 contains the specific sample analyses. Groundwater samples will be collected by first measuring the static water level and then determining the volume of water contained in the well. The well will be purged of a minimum of three well volumes of water. The purge water will be monitored for pH, conductivity, temperature, Eh, dissolved oxygen and turbidity, and contained in DOT-approved, 55-gallon, ring-top drums. The wells will be purged by pumping with a 2-inch diameter submersible pump. The sample will be collected using a disposable polyethylene bailer. The purge water will be staged on pallets next to the respective wells until receipt of the sampling results, at which time the handling of the purge water will be addressed. If the groundwater is found not to be significantly contaminated, the purge water will be discharged in close proximity to the well from which it was obtained. tThe pump will be cleaned prior to use in each well. The pump will be cleaned by first washing the exterior of the pump with Alconox and water solution, then pumping approximately 5 ' gallons of the Alconox and water solution through the pump. The pump will then be placed in a bucket of clean tap water and approximately 5 gallons of water will be pumped out. The pump ' cable will then be wiped down with dionized water and paper a towel. The decontamination water will be collected in DOT-approved, 55-gallon, ring-top drums and staged on pallets next to the respective wells until receipt of the sampling results, at which time the handling of the drums will be addressed similar to the purge water drums discussed above. I ♦1314\S0315501(R02) 3-5 I Table 3-2 ANALYTICAL PROGRAM BASELINE PARAMETERS FIELD PARAMETERS METALS ' Static water(in wells and sumps) Aluminum Specific Conductance Potassium Temperature Sodium Floaters or Sinkers Iron pH Manganese Eh Magnesium ' Dissolved Oxygen Lead Field Observations Calcium Turbidity Cobalt Vanadium LEACHATE INDICATORS Toxic metals' and cyanide Total Kjeldahl Nitrogen (TKN) ORGANIC COMPOUNDS Ammonia Nitrate Volatile organics as listed in 6NYCRR Subpart 360 - 2.11(d)6 Chemical Oxygen Demand (COD) ' Biochemical Oxygen Demand (BOD) Organic Compounds (Volatiles, Total Organic Carbon(TOC) Semivolatiles Pesticides, PCBs, Herbicides, Organophosphorous Pesticides) as listed in 6NYCRR Subpart 360 - 2.11(d)6 Total Dissolved Solids (TDS) Sulfate Alkalinity Phenols Chloride Total hardness as CaCO3 Bromide Color Boron I Toxic metals include antimony, arsenic, beryllium, barium, cadmium, chromium (total and hexavalent), copper, lead, mercury, nickel, selenium, silver, thallium and zinc. I ♦1314\S0315501(R02) 3-6 1 1 3.2.2 Explosive Gas Survey Three rounds of explosive gas monitoring will be conducted in accordance to 6 NYCRR Part 360-2.15(a)(2). The initial explosive gas survey will be conducted to the best extent possible, ' during low wind and low atmospheric pressure days, and ideally when the ground surface has been saturated or frozen for several days. The gas survey will include the construction of 37 temporary monitoring probes located around a portion of the landfill property outside of the gas venting trench, where it exists, and comprise three rounds of explosive gas monitoring. Each round will include monitoring of 61 total points which include the 37 temporary probes; four ambient air locations inside the three on- site structures (one measurement inside the weighing station, one measurement inside the storage garage and two measurements inside the collection center); and 20 existing permanent monitoring ' probes for methane gas using an organic vapor analyzer (OVA with activated carbon filter) and Exotox meter (or equivalent). Figure 3-2 illustrates the explosive gas monitoring points. The temporary probes will be installed at 100-foot intervals. The permanent monitoring probes are located at approximately 300-foot intervals. The temporary probes for the explosive gas survey will be constructed by driving a 1/2-inch O.D. stainless steel hollow ramrod with a hardened steel tip into the soil to a depth of 2 to 3 feet. The ramrod will be pulled from the hole and the steel tip removed. The ramrod will then be 1 reinserted into the hole and a 1/4-inch O.D., 3 to 4 feet long polyethylene tube will be inserted to the bottom of the hole such that 1 foot of tubing remains above ground. At this time, air will be blown through the tube to assure the tip is not plugged with soil. The steel ramrod will be removed, leaving in place the polyethylene tube. The ramrod hole (annular space) will then be rbackfilled with native soil. A stake will be driven into the soil next to the tube and the tubing will be secured to the stake with tape. The stake will be labeled with the temporary probe number and flagged with hi-visibility flagging. The end of the tube will be fitted with a plastic cap or rubber stopper to prevent foreign matter from entering. w 13141S0315501(R02) 3-7 • f] "Uo ,r4J�o o 0 (1--) � o oI oa I , II Ll \ �_ ---------.. � .- - ! II\, •\ ' ' ---- r______,. ROAp ci 0 \\ \\ \\ \� Q . \\ I ' \\ \ . _ \\ vnI \\\ v \\v / i vi \,\ It I • • ) v IQ vv II a -----.......__,// \ \� 0 10O j / '' FEES `,; II / \ \ � •\ _ 11 I 1 I \\off �� ---___ 10 I 1 ___ _ L- ELECTRIC �I \ /� -/ moi/ /' A LY \ LINES APP30p F ET I \� /j �� \\ /'�\ \ _ \"/ �— \ \\ \� .......\___:_______.:4 / • ----------- ------ t / (_,--- . 1 .3 \\\'‘.\2\ ;,`, �i pp EE CP �\11� 4 ;� \\ I �� . 0CENERTION �\o \ ' \ \\. I \ v i� o WEIGHING - i 1 ,U_ \ °,r\ (� STATION GEND `� \ 1 ; �� \ EXISTING BUILDING \ \ �� Q `° ON LANDFILL SITE 6 GARAGE •�= �%O \\\ ``, �/ `\ ROTO A —11— EXISTING FENCE LINE � - Y CS ``� O \\\1 `11 (COUNT GASRVENTANG TRENCHN \ „ ,_ ....., \\ t: ;::: \_ :3/A 0 1 1 \\ \\ AMBIENT AIR MONITORING ROA r \\ ® POINT LOCATION \\ • SCALE IN FEET NaRTN \\\ o loo :oo 300 TOWN OF SOUTHOLD SOUTHOLD LANDFILL TEMPORARY AND FEMMEtfr EXPLOSIVE GAS MONITORING POINTS Dvirka and Bartiluccl �� ANNEI�IT' AIR MONITORING POINT LOCATIONS Consulting Enginaro FIGURE 3 - 2 • A�'.14` � A F- I n °tM. P.C. • ti .-- -3:i;;:- ..,_''-'-''''.. : . gyp. E, During a previous investigation conducted by the Town in May 1985, a gas venting trench was constructed around a portion of the landfill waste perimeter in order to mitigate the migration of landfill gas off the site. According to Town personnel, the trench was constructed approximately 6-8 feet wide and up to 12 feet deep and backfilled with C&D debris and soil. Figure 3-2 illustrates the approximate location of the trench. The temporary probes will be measured for the presence of landfill gas by first removing the protective cap and placing the probe tip of the OVA into the tube. Two readings will be recorded from the OVA, the peak methane reading and a steady methane reading. If the peak reading is greater than 1,000 ppm, then the OVA will be removed and the Exotox meter (or equivalent) will be attached to the tubing. The Exotox meter (or equivalent) will measure the ' percent of the lower explosive limit (% LEL). Both the peak and steady readings will be recorded. The 20 permanent probes consist of capped 2-inch O.D., Schedule 40 PVC pipe and 4- foot long screen. The probes are approximately 25 feet deep and have a 1/4-inch hole drilled at the upper portion for monitoring access. These probes will be monitored by inserting the OVA probe tip (with carbon filter) into the '/4-inch access hole. Two readings will be recorded from the OVA, the peak methane reading and the steady methane reading. If the peak reading is greater than 1,000 ppm, then the OVA probe will be removed and the Exotox meter (or equivalent) probe will be inserted into the access hole. The Exotox meter (or equivalent) will measure the percent of the lower explosive gas limit (% LEL). Both the peak and the steady readings will be recorded. The four ambient measurements inside the three on-site structures will be obtained using both the OVA (with the carbon filter) and the Exotox (or equivalent). The steady OVA reading ' and peak OVA reading (if measurable) will be recorded. In addition, the percent oxygen level will be recorded as well. If OVA readings are greater than 1,000 ppm, then the Exotox meter (or equivalent)will be used to measure the percent of the lower explosive limit (% LEL). All readings will be recorded in a field notebook and presented on a figure in the Closure Investigation Report. ♦13141S0315501(R02) 3-9 ' 3.2.3 Surface Leachate Survey ' A surface leachate survey will be conducted to identify the presence or absence of leachate seeps, standing pools of leachate or leachate stained soil. The surface leachate survey will ' concentrate around the landfill waste perimeter and low areas around the landfill where leachate ' may breach the ground surface and pool, as well as along the landfill side slopes. Provision is made to collect up to five samples each of surface leachate and leachate stained soil, if found. Liquid samples will be collected with a disposable polyethylene scoop. Stained soil will also be sampled with a disposable polyethylene scoop and/or sterile wooden tongue depressor. ' Samples will be analyzed for Baseline Parameters. All locations of leachate seeps, stained soil or leachate pools, if present, will be located on a map and presented in the Closure ' Investigation Report. ' 3.2.4 Vector Survey ' A site walk over of the landfill will be undertaken to identify the presence or absence of vermin or typical disease vectors at these areas. This evaluation will identify, through the use of signs such as footprints, scat, burrows or by visual observation, the presence of rodents, birds or insect populations. Areas of standing water (if present) will be visually assessed for the presence ' of mosquito larvae. The survey will commence 2 hours prior to sunrise and terminate 2 hours after sunset. Observations will be recorded in a field notebook. Any vectors or signs of vectors will be identified to the greatest extent possible and located on a map. The map will be presented in the Closure Investigation Report. 41314\50315501(R02) 3-10 3.2.5 Air Monitoring ' Ambient air monitoring will be performed throughout the field investigation activities. Either a flame ionization detector (Century Foxboro OVA-128) or a photoionization detector (Photovac Microtip) will be used to detect organic vapors. ' Detailed sampling and sample handling procedures are contained in the Site Analytical Plan, Section 4.0 of this Work Plan. 1 i I ♦13141s0315501(R02) 3-11 I co I m I o I A 4.0 SITE ANALYTICAL PLAN 4.1 Objective and Scope ' The purpose of this Site Analytical Plan (SAP) is to develop and describe the detailed sample collection and analytical procedures that will ensure high quality and valid data. A field sampling ' program will be conducted for the collection of groundwater and leachate(surface pools and/or stained soils). 4.2 Data Quality Objectives Data quality objectives are those objectives established in order to protect human health and the environment. An objective is established as a minimum detection limit for each analyte of concern. The objective of this program is to monitor the groundwater at and in the immediate vicinity of the ' Southold Landfill for the purpose of characterizing the current water quality. This Site Analytical Plan (SAP) is specifically designed to provide reliable, defensible data for the purpose of characterizing the ' current groundwater quality conditions. ' 4.2.1 Regulatory Programs and Applicable Standards ' Data obtained during the Closure Investigation will be subject to all regulatory programs and standards applicable to landfill closure, including groundwater and leachate monitoring. Regulatory ' programs involved in the project include 6 NYCRR Part 360 Solid Waste Management Facilities and New York State Department of Health Environmental Laboratory Approval Program (FLAP). The ' standards which will be applied are the NYSDEC Groundwater/Surface Water Standards listed in the Water Quality Regulations, Title 6, Chapter X, Part 700-705. 4.2.2 Required Detection Levels ' Data gathered for the purpose of environmental monitoring will be analyzed using methods ' capable of detecting parameters at or below the set data quality objectives. The required detection limits or data quality objectives for each analyte listed in the Baseline Parameter list will be established A 1314\S0315503(R02) 4-1 according to Part 360-2.11(c)5iii(f), which specifies that the detection limit must be below the NYSDEC groundwater standard or, if one is not available, the established site groundwater quality level or the Practical Quantification Limit (PQL) listed in Part 360. The parameters to be analyzed are listed in this section and are stipulated in Part 360-2.11(d)(6) effective October 9, 1993. Practical Quantification Limits(PQLs), groundwater standards and detection limits for each parameter are listed in Appendix C. The detection limits are subject to change, based upon the laboratory performing the ' analyses, available equipment for analyses, and possible changes in applicable regulations or site conditions. In all cases, the proposed changes in detection limits will be subject to NYSDEC approval prior to implementation of the Work Plan. 4.2.3 Data Precision Precision is a measure of the ability to reproduce analytical results. Precision is generally determined by analysis of duplicate samples. Precision protocols for each parameter to be analyzed in this SAP are listed in Table 4-1. 4.2.4 Data Accuracy Accuracy is a measure of how close a measured value is to a known true value. Accuracy is ' assessed by means of reference samples and percent recovery of spiked samples. Accuracy protocols for each parameter to be analyzed in this SAP are listed in Table 4-1. 4.2.5 Data Representativeness The sampling program procedures described in Sections 4.4 of this SAP are designed to provide data representative of site conditions. ' 4.2.6 Data Comparability ' Data will be presented in the units designated by the methods specified by the 40 CFR 136 and USEPA SW-846, and other analytical methodologies, such as Standard Methods, where appropriate. In addition, sample location, collection procedures and analytical methods from earlier studies will be evaluated for comparability with current procedures and methods. r ♦1314\S0315503(R02) 4-2 I I ITable 4-1 I SOUTHOLD LANDFILL SITE ANALYTICAL PLAN DATA QUALITY REQUIREMENTS I Parameter Sample Matrix Accuracy Protocol Precision Protocol IVolatile Organics Liquid Vol. III, Part XIV Vol. III, Part XIV Solid Method 624, Table 6 Method 91-1, Table 6 I Metals (Except Liquid Vol. III, Part XIV, Vol. III, Part XIV, Cyanide) Solid Method 200.7*, Method 200.7 *, ITable 4 Table 4 Cyanide Liquid Vol. III, Part XV, Vol. III, Part XV, ISolid Method 335.2 Method 335.2, Subpart 10 Subpart 10 IAmmonia Liquid Vol. III, Part XV, Vol. III, Part XV, Method 350.3, Table Method 350.3, 7, Subpart 8 Subpart 8 Total Organic Carbon Liquid Vol. III, Part XV, Vol. III, Part XV, I Method 415.1, Method 415.1, Subpart 9 Subpart 9 I Total Dissolved Solids Liquid Vol. III, Part XIII, Vol. III, Part XIII, Method 160.1, Method 160.1, Subpart 9 Subpart 9 IAlkalinity Liquid Vol. [II, Part XV, Vol. III, Part XV, Method 310.1, Method 310.1, ISubpart 8 Subpart 8 Chloride Liquid Vol. [II, Part XV, Vol. III, Part XV, IMethod 325.3, Method 325.3, Subpart 8 Subpart 8 1 pH Liquid Vol. III, Part XIII Vol. III, Part XIII Method 150.1 Method 150.1 I Subpart 10 Subpart 10 I *1314\S0315503(R02) 4-3 I I Table 4-1 (continued) I SOUTHOLD LANDFILL SITE ANALYTICAL PLAN DATA QUALITY REQUIREMENTS I Parameter Sample Matrix Accuracy Protocol* Precision Protocol* Specific Conductance Liquid Vol. III, Part XIII, Vol. III, Part XIII, Method 120.1 Method 120.1, ISubpart Subpart 10 Total Kjeldahl Liquid Vol. III, Part XV, Vol. III, Part XV, INitrogen Method 351.3, Method 351.3, Subpart 10 Subpart 10 INitrate Liquid Vol. III, Part XV, Vol. III, Part XV, Method 352.1 Method 352.1, Subpart 9 Subpart 9 I Biochemical Oxygen Liquid Vol. III, Part XV, Vol. III, Part XV, I Demand Method 405.1, Subpart 4 Method 405.1, Subpart 4 I Chemical Oxygen Liquid Vol. III, Part XV, Vol. III, Part XV, Demand Method 410.1, Method 410.1, Subpart 9 Subpart 9 ISulfate Liquid Vol. III, Part XV, Vol. III, Part XV, Method 375.4, Method 375.4, ISubpart 8 Subpart 8 Chromium Liquid Vol. [II, Part XIV, Vol. III, Part XIV, I (Hexavalent) Method 218.5, Method 218.5, Subpart 12 Subpart 12 IColor Liquid Vol. III, Part XIII, Vol. III, Part XIII, Method 110.2, Method 110.2, Subpart 10 Subpart 10 I Hardness i (total) Liquid d V l o . III, Part XIII, Vol. III, Part XIII, Method 130.2, Method 130.2, ISubpart 9 Subpart 9 I ♦1314\S0315503(R02) 4-4 I Table 4-1 (continued) ' SOUTHOLD LANDFILL SITE ANALYTICAL PLAN DATA QUALITY REQUIREMENTS 1 Parameter Sample Matrix Accuracy Protocol* Precision Protocol* Turbidity Liquid Vol. III, Part XIII, Vol. III, Part XIII, Method 180.1, Method 180.1, Subpart 9 Subpart 9 Boron Liquid Vol. III, Part XIV, Vol. III, Part XIV, ' Method 212.3, Method 212.3, Subpart 4 Subpart 4 Eh Liquid -- -- Phenol Liquid -- -- Sulfide Liquid -- -- Fluoride Liquid -- -- ' Silica Liquid -- -- *1991 NYSDEC ASP. I *1314\S0315503(R02) 4-5 I ' 4.2.7 Data Completeness The acceptability of 100%of the data is designed as a goal for this project. The acceptability of less than 100% complete data, meeting all laboratory QA/QC protocols and standards, will be evaluated on a case-by-case basis. 4.3 Analytical Quality Assurance(AQA)And Analytical Quality Control(AQC) IAnalytical quality assurance will be controlled by the use of standard protocols and procedures to ensure that reported data results are reliable in assessing possible significant changes in water quality. 4.3.1 AQA/AQC Goals and Protocols I The AQA/AQC goals and protocols for each type of monitoring for this program are as follows: ' Groundwater ' The goal of groundwater monitoring is to characterize the current groundwater quality. The protocol that will be followed for analyses and reporting is the NYSDEC December 1991 Analytical Services Protocol (ASP). Required detection levels are those discussed in Section 4.2.2 and listed in Appendix B. The results will be compared to Class GA Groundwater Standards. Leachate Seeps and/or Stained Soil Thegoal of sampling leachate seeps and/or stained soil is to characterize the nature of the P g surface soil and perimeter areas of the landfill and to determine the need for landfill leachate control measures. The protocol for reporting will be the NYSDEC December 1991 Analytical Services Protocol. Required detection levels are those discussed in Section 4.2.2. I r ♦I3141S0315503(R02) 4-6 ' 4.3.2 Quality Objectives ' The AQA/AQC quality objectives are the same as the data quality objectives listed in Section 4.2. 4.3.3 Qualifications,Responsibilities and Authorities of Personnel All personnel working on all aspects of this SAP will be qualified and experienced in the tasks 111 they are to perform. Personnel involved in the SAP generally consist of three groups, including field personnel, laboratory personnel and data validators. Qualifications, responsibilities and authorities of each group are discussed below. ' Field Personnel ' Field personnel will consist of a minimum of two samplers. Field personnel will be responsible for collecting and shipping all samples in accordance with this SAP. One of these individuals will be ' designated field supervisor, and will be responsible for ensuring that standard operating procedures(see Section 4.4) and field documentation are completed according to the SAP. The field supervisor will have the authority to alter standard operating procedures should site conditions: 1) make sample collection hazardous to the samplers; or 2)be likely to preclude the data quality objectives established in this SAP. The field supervisor will also be responsible for identifying and reporting to the Town and the NYSDEC any deviations from SAP procedures or corrective actions necessary during sampling. Laboratory Personnel Laboratory personnel will include all personnel responsible for handling, analyses and re reporting P g ' of samples and results from the time samples are received by the laboratory as noted on the chain-of- custody forms until the laboratory reports are issued. The qualifications, responsibilities and authorities ' of laboratory personnel are dictated by standard operating procedures required of all laboratories participating in the New York State ELAP Program. For the purpose of this SAP, the standard operating procedures provided by the laboratory for compliance with the ELAP Program will be ♦1314\S0315503(R02) 4-7 ' sufficient to comply with Part 360-2.11(d)(2)(i) requirements for identification of qualifications, responsibilities and authorities of laboratory personnel. The standard operating procedures of the laboratory selected by the Town for landfill ' monitoring analyses will be made available, if necessary. Should the situation arise in which the laboratory can no longer perform the required sampling duties, the SAP will be amended, with the ' approval of NYSDEC, to reflect changes and procedures necessary to meet the data quality objectives established in Section 4.2. I Data Validator The data validator will be the individual(s) responsible for data validation and data usability review as required in Part 360-2.11(d)(5)(i) effective October 9, 1993 and described in Section 4.6 of this SAP. The data validator will have successfully completed both the organic compound and ' inorganic analyte validation courses given by the USEPA or meet the requirements of a data validator stipulated by the NYSDEC (see Section 4.9). The validator's responsibilities include review of the ' laboratory's SOP, review and evaluation of the analytical data package submitted by the laboratory and compilation of the findings of the validation process into a data usability report. The validator will have the authority to accept or reject data provided by the laboratory. Should data be rejected, the validator will advise the Town,NYSDEC and the laboratory of remedial alternatives necessary to make the data ' acceptable. 4.3.4 AQC Procedures The analytical quality control procedures to be followed by the laboratory are those stipulated in the NYSDEC December 1991 ASP for Category B, Deliverables. Table 4-1 summarizes the data quality requirements(i.e., accuracy and precision)for each method and parameter. ♦1314\S0315503(R02) 4-8 ' 4.3.5 Standard Operating Procedures(SOPs) Sample Collection The SOPs to be followed during sample collection are documented in Section 4.4, Field Sampling Procedures, of this SAP. Sample Analysis A copy of laboratory SOPs provided by the laboratory selected by the Town will be available upon request. The procedures are those required of the laboratory for NYSDOH ELAP certification. Each NYSDOH ELAP certified laboratory must develop a set of standard operating procedures. These SOPs are in compliance with NYSDEC requirements and are supplied to the NYSDOH when applying for certification. 1 If the selected laboratory should lose its ELAP certification, then the SAP will be amended with the approval of NYSDEC. ' 4.3.6 QC Samples and Blanks ' QC samples and blanks are artificial samples designed to monitor the introduction of artifacts into the measurement process. QC samples and blanks are samples collected and prepared in addition to field samples. QC samples include matrix spikes and matrix spike duplicates. Blanks consist of several types that monitor a variety of processes. As per NYSDEC ASP requirements, certain QC samples and blanks must accompany samples collected during each sampling event. QC samples and blanks to be used in the fulfillment of this SAP are described in the following paragraphs. The number and frequency of QC samples and blanks is described in Section 4.8, Monitoring Parameters Summary. I *1314\S0315503(R02) 4-9 4.3.6.1 -Matrix Spikes/Matrix Spike(MS/MSD)Duplicates A matrix spike is an aliquot of a sample fortified (spiked) with known quantities of specific compounds and subjected to the entire analytical procedure to indicate the appropriateness of the ' method for the matrix by measuring recovery of the spike. A matrix spike duplicate is a second aliquot of the same matrix as the matrix spike (above) that is spiked to determine the precision of the method. ' Matrix spikes and matrix spike duplicates are used by the laboratory as part of its internal Quality Assurance/Quality Control Program (QA/QC). This QA/QC check is consistent with the NYSDEC Quality Analytical Services Protocol. One liquid and one solid matrix spike sample will be collected and submitted for laboratory analysis for every 20 samples of a similar matrix. A matrix spike duplicate will also be collected and submitted for each matrix(liquid and solid). The MS and MSD are collected from a regularly scheduled field sampling point in addition to the field sample for that point. 4.3.6.2 -Trip Blanks(Travel Blanks) I A trip blank is shipped to and from the field with the sample containers. It is not opened in the field and, therefore, provides a test for contamination from sample preservation, site conditions and transport, as well as sample storage, preparation and analysis. It is most commonly used for volatile ' organics. A typical trip blank consists of a pair of 40 ml sample vials filled with laboratory demonstrated analyte free water. 111 4.3.6.3 -Field Blanks(Field Rinsate Blanks) The primary purpose of this type of blank is to provide an additional check on possible sources of contamination beyond that which is intended for trip blanks. A field blank is used to indicate potential contamination from ambient air and from sampling instruments. A field blank is prepared using two identical sets of laboratorycleaned sample containers. One ' set of containers is filled at the laboratory with laboratory demonstrated analyte free water. Field blanks are handled, transported and analyzed in the same manner as the samples acquired that day. At the field location, preferably in the most contaminated area, this analyte free water is passed through clean sampling equipment and placed in the empty sample container for analysis. (Note: It may be necessary 1 413141S0315503(R02) 4-10 for the laboratory to provide extra full volatile organics vials to ensure sufficient volume of blank water to eliminate headspace.)Field blanks will be collected daily or for each "batch" of 20 or fewer samples 1 that are collected in the same manner. Field blanks must return to the laboratory with the same set of sample bottles they accompanied to the field. Field blanks must be packaged with their associated 1 matrix. They are analyzed for the same compounds as the environmental samples collected in each "batch." 4.3.6.4 -Method Blanks Method blanks are analyzed daily by the laboratory to check for contamination which may be introduced to the sample as a result of the analytical procedure itself. In instances where a particular compound is found in the method blank and in the environmental sample, the concentration in the 1 environmental sample must be at least 10 times that of the method blank in order for the result to be valid. 4.4 Field Sampling Procedures P g All samples required bythe Closure Investigation Work Plan will be collected in such a manner P �l g as to maximize the reproducibility of samples and allow for reliable comparisons within sample matrices. Sampling procedures to be used for each sample media type are described below. When ' collecting samples, including more than one parameter for analysis, the samples will be collected in order of volatilization sensitivity using these procedures. The procedures are to be followed for all sampling at the Southold Landfill to minimize sample quality variation due to sampling technique. Sample integrity will also be evaluated by the collection of quality control samples. Quality control samples will include field blanks, trip blanks, field duplicates, reference materials and material blanks, where applicable. Section 4.3.6 describes QC samples and blanks. Tables presented in Section 4.8, Monitoring Parameters Summary, list types and frequency of quality control samples in the "Sample Type" column. I ♦1314\S0315503(R02) 4-1 1 ' 4.4.1 Sampling Equipment All sampling equipment to be used for Closure Investigation sampling will be constructed of inert materials and designed to obtain samples with minimal agitation of the sample media. Sampling equipment and procedures will minimize sample contact with the atmosphere. Sampling equipment will consist of disposable equipment used only for one sampling event and only at one sampling point. ' Equipment that is not disposable and must contact materials to be sampled, such as pH meters, conductivity meters and water level indicators, will be decontaminated prior to each use. ' Decontamination procedures are described in Section 4.4.3.1. A list of equipment is presented in Table 4-2. 4.4.2 Sample Preservation and Shipping Prior to packaging samples for shipment, sample containers will be checked for proper ' identification and compared to the field log book for accuracy. Samples in glass bottles will be wrapped with a cushioning material and placed in a cooler (or laboratory shuttle) with a sufficient amount of ' bagged ice or"blue ice" packs to keep the samples at 4°C until arrival at the laboratory. Preservatives other than ice will be as described in Section 4.8,Monitoring Parameters Summary. All necessary documentation required to accompany the sample during shipment will be placed ' in a sealed plastic bag and taped to the underside of the cooler lid. The cooler will then be sealed with tape, and custody seals placed so that tampering with the cooler prior to arrival at the laboratory can be ' detected. Samples will be shipped to the laboratory as soon as practical after sample collection, and prior to the expiration of the shortest holding time of samples contained in the coolers, but not to exceed 48 hours after sample collection. Tables in Section 4.8, Monitoring Parameters Summary, list holding times for all parameters to be sampled. 4.4.3 Health and Safety Current conditions at the Southold Landfill indicate no human or environmental health hazards ' associated with groundwater or surface leachate sampling. Under existing conditions, environmental sampling will be conducted in Level D personal protective equipment. Should conditions at the site •1314\.S0315503(R02) 4-12 1 ' Table 4-2 ' SAMPLING EQUIPMENT Sample Type Equipment Groundwater Disposable bailer with VOA-tip Leachate(Surface Pooling) Laboratory jar or disposable polyethylene scoop Surface Soil(Leachate Stained) Disposable polyethylene scoop, sterile wooden tongue depressor or decontaminated stainless steel ' trowel 1 1 1 1 1 1 1 1 1 1 1 ♦1314\S0315503(R02) 4-13 1 I ' change, as identified by sampling results, appropriate evaluation and procedure modifications will be made. I All equipment that is not disposable or dedicated will be decontaminated between uses. ' Decontamination will minimize the potential for foreign materials to contact sample media and minimize potential health hazards from handling equipment that has contacted contaminants. 4.4.3.1 -Decontamination Procedures Whenever feasible, field sampling equipment will be dedicated to a particular sampling point. In instances where this is not possible, a field cleaning (decontamination) procedure will be used in order to reduce the chances of cross-contamination between sample locations. Decontamination of field ' sampling equipment will be conducted in the area of least contamination at the landfill. ' Non-disposable equipment will be decontaminated at appropriate intervals (e.g., prior to initial use, prior to moving to a new sampling location and prior to leaving the site). Different ' decontamination procedures are used for various types of equipment that are used during the field activities. When using non-dedicated equipment, it is advisable to start sampling in the area of the site with the lowest contaminant probability and proceed through to the areas of highest suspected contamination. Teflon, PVC, HDPE and stainless steel sampling equipment decontamination procedures will be the following: • Wash thoroughly with nonresidual detergent (Alconox) and potable water using a brush to remove particulate matter or surface film. ' • Rinse thoroughly with potable water. • Rinse thoroughly with distilled water. • Rinse in a well ventilated area with methanol(pesticide grade)and air dry. • Rinse thoroughly with distilled water and air dry. I *1314\S0315503(R02) 4-14 • Wrap completely in clean aluminum foil with dull side against the equipment. For small sampling items, such as scoops, decontamination will take place over a drum specifically used for this purpose. The first step, a soap and water wash, is to remove all visible particulate matter and residual ' oils and grease. This is followed by a potable water rinse and a distilled/deionized water rinse to remove the detergent. Next, a high purity solvent rinse is designated for trace organics removal. Methanol has been chosen because it is not an analyte of concern in the Baseline Parameter list. The solvent must be allowed to evaporate and then a final distilled/deionized water rinse is performed. This rinse removes any residual traces of the solvent. The aluminum wrap protects the equipment and keeps it clean until it is used at another sampling location. The submersible pump will be decontaminated by the following procedures: 1. Place pump in Alconox and water solution and wash the outside of the pump with a scrub brush. 2. Pump approximately five gallons of Alconox and water solution through the pump. 3. Place pump in bucket of clean water and pump out five gallons of water. 4. Wipe down the cable with deionized water and a paper towel. 5. Decontamination water will be contained in DOT-approved 55-gallon drums. All water generated during the decontamination process will be contained in 55-gallon ' DOT drums and stored in a designated area. 4.4.3.2 -Control and Disposal of Contaminated Material ' During sampling of the monitoring wells, possible contaminated water may be generated from decontamination water and purge water. Water associated with the wells and decontamination water ' will be temporarily contained in drums and stored in a designated area until the analytical results for the groundwater sample is obtained. Plastic bags will be utilized for disposal of personal protective ' clothing and disposable sampling equipment (i.e., bailers and tongue depressors). I A 1314\S0315503(R02) 4-15 1 4.4.4 Groundwater Sampling ' The following procedure is to be followed for all groundwater monitoring well sampling: 1. Unlock well cap and remove PVC cap. 2. Screen well head space for vapors using portable gas meters such as EXOTOX, OVA-FID and/or Microtip PD. The concentration of vapors will be recorded in the log book and sample information form as a percent of LEL and organic vapors concentrations will be recorded in ppm. 3. Measure the depth of water using a decontaminated water level indicator and calculate the volume of standing water in the well including the sandpack volume. 4. With a decontaminated Grundfos pump and dedicated 1/2-inch polyethylene tubing, remove three to five times the volume of standing water from the well until field parameters (pH, 1 Eh, conductivity, temperature, dissolved oxygen and turbidity) stabilize, or until the well is dry, whichever occurs first. During purging of a water table well, the pump is raised and ' lowered through the standing water column to assure removal of all the water from the well and sand pack. For purging of the deep wells, set pump 2 feet below water table and remove a minimum of 3-5 well volumes and upon stabilization of the field parameters slowly raise the pump up through the top two feet to remove the stagnate water above the pump. Check purge water for the presence of floating or sinking non-aqueous materials and collect a sample, if present. t5. Remove the laboratory precleaned sample containers from the sample cooler, label with an indelible marker, fill out Sample Information Record and Chain of Custody Form. 1 6. Obtain a volatile organic sample by using a disposable VOA tipped bailer. Gently fill the sample container taking care not to spill water on the outside of the container or overfill the ' container. Replace cover on the sample container. Samples for volatile organic analyses should have no air space in the sample vial prior to sealing. This is accomplished by filling the vial such that there is a meniscus on top. Carefully, slide the septum, teflon side down, onto the top of the vial and cap the vial. Check for bubbles by turning the vial upside down and tapping lightly. If bubbles appear, reopen the vial, remove the septum and add additional sample (or resample). Replace the septum, recap and check for bubbles. Continue until vial is bubble-free. 7. Obtain a sample and analyze for field parameters (pH, Eh, conductivity, temperature, dissolved oxygen and turbidity). 8. If it is determined in consultation with the NYSDEC that filtering of the sample is necessary for the metals fraction, first collect an unfiltered sample in a sample bottle, replace the cover on the sample bottle and label the sample. Next, pour an appropriate I *1314\S0315503(R02) 4-16 amount of the remaining sample from the bailer into a second sample bottle through a 0.45 micron filter to remove particulates from suspension. Replace the cover on the sample bottle and label the sample. The turbidity of both the filtered and unfiltered sample will be recorded at the time of collection. If filtering is not to be done, collect the remaining portions of the sample, (i.e. leachate parameters) allow the well to set undisturbed and return periodically to measure the turbidity. Once the turbidity has fallen below 50 NTUs, but not longer than 24 hours from the time of initial purging, collect the metals sample in the preserved bottle. 9. Return sample containers to sample cooler. 1 10. Decontaminate any equipment that is to be re-used(i.e. Grundfos pump). 1 4.4.5 Surface Leachate Sampling (Liquid) 1 1. Be certain that sample location is noted on Location Sketch (see Section 4.4.10). ' 2. Remove the laboratory precleaned sample container from the sample cooler, label container with an indelible marker, fill out Sample Information Record (see Section 4.4.10.1) and Chain of Custody Form (see Section 4.4.10.2). ' 3. Collect sample using disposable or decontaminated scoop. ' 4. Gently pour the sample into the sample container, if not sampled directly, taking care not to spill the sample on outside of container or overfill container, and replace cover on the sample container. For volatile organic samples, make sure that there are no air bubbles in the sample vial after it has been capped. This is done by filling the vial such that there is a meniscus on top. Carefully slide the septum, teflon side down, onto the top of the vial and cap the vial. Check for bubbles by turning the vial upside down and ' tapping it lightly. If the bubbles appear, reopen the vial, remove septum and add additional sample (or resample). Replace septum, recap and check for bubbles. Continue until vial is bubble-free. 5. Return sample container to sample cooler. 6. Place disposable personal protective equipment and disposable sampling equipment into a 55-gallon drum lined with a plastic bag. 4.4.6 Surface Soil Sampling (Leachate Stained Soil) 1. Be certain that sample location is noted on Location Sketch (see Section 4.4.10.1). *1314\S0315503(R02) 4-17 1 2. Be certain that the sampling equipment (scoop) has been decontaminated, if disposable equipment is not being used, using the procedures outlined in Section 4.4.3.1. t3. Remove the laboratory precleaned sample container from the sample cooler, label container with an indelible marker, fill out Sample Information Record (see ' Section 4.4.10.1) and Chain of Custody Form (see Section 4.4.10.2). 4. Collect sample from 0 to 6 inches from surface using a disposable or decontaminated ' scoop or sterile wooden tongue depressor and placed in the open sample container. Close sample container. 5. Return sample container to sample cooler. 6. Place disposable personal protective equipment and disposable sampling equipment into a 55-gallon drum lined with a plastic bag. 4.4.7 Air Monitoring ' 1. For the organic vapor analyzer (OVA or Microtip) and multi-gas meter, place the instrument directly over the sampling point and allow the instrument readings to stabilize (if possible). For the dust indicator, place the instrument about 20 feet from ' the sampling activity and allow the readings to stabilize (again, if possible). 2. If readings on the OVA and gas meter are above background, move the meter into the vicinity of the breathing zone of workers at the sample site, and allow readings to stabilize (if possible). 1 3. Record instrument readings on the Air Monitoring Form (see Sections 4.4.10.6) 4. If readings of organic vapors, gases and dust are above the action level of 5 ppm for ' VOCs and gases and 0.15 mg/m3 for dust. All sampling will stop and the sampling point will be allowed to ventilate. If after a minimum of 10 minutes the monitoring ' readings are still above the action levels, then the need for additional respiratory protection will be evaluated by the Project Manager, Health and Safety Officer and Field Operations Manager. 4.4.8 Field Management Procedures Proper management and documentation of field activities is essential to ensure that the necessary work is conducted in accordance with the Sampling Plan and QA/QC Plan in an efficient and high quality manner. Field management procedures include following proper chain of .A 1314\S0315503(R02) 4-18 custody procedures to track a sample from collection through analysis, noting when and how samples are split (if required), preparing a Location Sketch, completing Sample Information Record Forms, Chain of Custody Forms, maintaining a daily Field Log Book, preparing Daily Field Activity Reports, completing Field Change Forms and filling out the Daily Air Monitoring Form and Equipment Calibration Log. Copies of each of these forms are provided in Section 4.7. ' Proper completion of these forms and the field log book are necessary to support the consequent actions that may result from the sample analysis. This documentation will support that the evidence was gathered and handled properly. 4.4.8.1 - Sample Information Record At each sampling location, the Sample Information Record form is filled out and maintained including, but not limited to, • Site name t • Sample crew • Sample location/well number • Field sample identification number ' • Date • Time • Weather • Temperature • Sample type/method of collection ' • Well information (groundwater only) • Field test results • Constituents sampled *1314\S0315503(R02) 4-19 I • Remarks A copy of the form can be found in Section 4.7. 4.4.8.2 - Chain of Custody The Chain of Custody (COC) is initiated at the laboratory with bottle preparation and shipment to the site. The COC remains with the sample at all times and bears the name of the person assuming responsibility for the samples. This person is tasked with maintaining secure and appropriate handling of the bottles and samples. When the form is complete, it should indicate that there was no lapse in sample accountability. A sample is considered to be in an individual's tcustody if any of the following conditions are met: • It is in the individual's physical possession, or • It is in the individual's view after being in his or her physical possession, or • It is secured by the individual so that no one can tamper with it, or • The individual puts it in a designated and identified secure area. In general, Chain of Custody Forms are provided by the laboratory contracted to perform the analytical services. At a minimum, the following information should be provided on these forms: • Project name and address • Project number • Sample number • Date ' • Time 1 *1314\S0315503(R02) 4-20 I ' • Sample location • Sample type • Analysis • Number of containers • Remarks • Type of waste • Sampler(s) name(s) and signature(s) ' • Spaces for relinquished by/received by signatures and date/time ' For this Closure Investigation, forms provided by the laboratory will be used. A copy of this form is available upon request. I The Chain of Custody Form is filled out and signed by the person performing the sampling. The original form travels with the sample and is signed each time the sample is relinquished to another party, until it reaches the laboratory or analysis is completed. The field sampler keeps one copy and a copy is retained for the project file. All samples and the Chain of Custody Form will be delivered to the laboratory 24 to 48 hours from day of collection. The sample bottle must also be labeled with a water proof marker with a minimum of the following information: • Sample number • Analysis to be performed • Date A copy of the completed form is returned by the laboratory with the analytical results. 1 •1314\S0315503(R02) 4-21 1 4.4.8.3 - Split Samples ' Whenever samples are being split with another party, a Receipt for Samples Form must be completed and signed. A copy of this form can be found in Section 4.7. A copy of the Chain of Custody Form will accompany this form. The present work plan does not provide for split samples. 4.4.8.4 - Field Log Book Field log books must be bound and should have consecutively numbered, water resistant pages. All pertinent information regarding the site sampling procedures must be documented. ' Notations should be made in log book fashion, noting the time and date of all entries. Information recorded in this notebook should include, but not be limited to, the following: • Project name, number and address i • Name, address and phone number of project contacts ' Daily entries are made for the following information: • Purpose of sampling • Location of sampling point • Number(s) and volume(s) of sample(s) collected • Description of sampling point and sampling methodology ' • Date and time of collection ' • Collector's sample identification number(s) • Sample distribution and method of storage and transportation ' • Calibrationequipment of a ui ment and results ♦13144S0315503(R02) 4-22 • References such as maps of the sampling site or photographs of sample collection • Field observations, including results of field analyses (e.g., pH, Eh, turbidity, temperature, dissolved oxygen, specific conductance) and water levels ' • Signature of personnel responsible for completing log entries ' 4.4.8.5 - Daily Field Activity Reports At the end of each day of field work, the field supervisor completes this form summarizing ' the work performed that day, results of field analyses, problems and resolutions. A cross reference is made to the field log book by page number, if appropriate. This form is then signed and is subject to review. A copy of the Daily Field Activity Report can be found in Section 4.7. 4.4.8.6 -Field Changes ' Whenever there is a required or recommended investigation/sampling plan change made in the field, a Field Change Form needs to be completed. This form is completed by the field ' supervisor and NYSDEC representative, and approved by the Project Manager for Dvirka and Bartilucci Consulting Engineers and NYSDEC Project Manager. A copy of this form is contained ' in Section 4.7. ' 4.4.8.7 - Air Monitoring ' Whenever air monitoring using an organic vapor analyzer or dust indicator is required, an Air Monitoring Form needs to be completed. A copy of this form is contained in Section 4.7. 4.4.9 Calibration Procedures and Preventative Maintenance The following information regarding equipment will be maintained at the project site: •1314\S0315503(R02) 4-23 1. Equipment calibration and operating procedures which will include provisions for documentation of frequency, conditions, standards and records reflecting the ' calibration procedures, methods of usage and repair history of the measurement system. Calibration of field equipment will be done daily at the sampling site so that any background contamination can be taken into consideration and the instrument ' calibrated accordingly. 2. A schedule of preventive maintenance tasks, consistent with the instrument manufacturer's specific operation manuals, that will be carried out to minimize down time of the equipment. 3. Critical spare parts, necessary tools and manuals will be on hand to facilitate equipment maintenance and repair. Calibration procedures and preventive maintenance, in accordance with the NYSDEC 1991 ASP, for laboratory equipment is contained in the laboratory's standard operating procedures (SOP)and is available upon request. 4.4.10 Field Sampling Corrective Action Corrective action will consist of documentation, evaluation and corrective measures addressing 111 any instance in which the standard procedures described in this section are altered. Should a procedure be altered, the actual procedure used will be documented and reported to NYSDEC. The ' documentation will describe the conditions causing the procedure change and identify the persons responsible. A description of the corrective action and rationale used to establish the corrective action, as well as persons involved, will also be documented. Such documentation will accompany the closure investigation report. Should changes be required in the SAP, an amendment to the SAP will be submitted to the NYSDEC for approval. 4.5 Laboratory Procedures The analytical laboratory will be a NYSDOH ELAP certified laboratory meeting requirements for documentation, data reduction and reporting. All data will be cataloged according to sampling locations. NYSDEC "Sample Identification and Analytical Requirements Summary" and "Sample Preparation and Analysis Summary" forms will be completed by the laboratory and included with the *1314\S0315503(R02) 4-24 data package. The sample tracking form will reflect the year of the NYSDEC ASP used. A copy of the Laboratory Standard Operating Procedures will be available upon request. Laboratory Standard Operating Procedures may be updated or replaced based upon changes in ASP or laboratories retained for sample analyses. NYSDEC will be notified in writing of such changes and the SAP amended as necessary. ' The laboratory will be required to report the analytical results in NYSDEC Category B deliverables format. 4.5.1 Laboratory Corrective Action Laboratory corrective action procedures for analyses of samples from the Southold Landfill will be the same as those required by the NYSDOH ELAP. When a corrective action is taken at the laboratory, both the Town and the Project Manager will be notified with the action documented. 4.6 Data Quality Assessment 111 At the conclusion of the analyses for each sampling event, a data quality assessment will be performed. Results of the data quality assessment will include data validation and a data usability analysis, and will be reported in the quarterly sampling report. The Quality Assurance Officer will be responsible for reviewing the data validation report and preparing a data usability report. The Quality Assurance Officer will have knowledge of laboratory analyses, as well as validation procedures. A copy of the resume for the Quality Assurance Officer is contained in Section 4.12. 4.6.1 Data Validation Data validation will be performed in order to define and document analytical data quality in accordance with NYSDEC requirements that project data must be of known and acceptable quality. The analytical and validation processes will be conducted in conformance with the NYSDEC ASP dated December 1991. 4,1314\S0315503(R02) 4-25 I Baseline sampling data will be validated by a person, other than the laboratory, that is acceptable to NYSDEC. Because the NYSDEC Analytical Services Protocol is based on the USEPA CLP, the USEPA Functional Guidelines for Evaluating Organics and Inorganics Analyses for the Contract Laboratory Program(CLP)will assist in formulating standard operating procedures (SOPs) for the data validation 1 process. The data validation process will ensure that all analytical requirements specific to this SAP are followed. Procedures will address validation of routine analytical services (RAS) results based on the IBaseline Parameter list for standard sample matrices. The data validation process will provide an assessment of the laboratory's performance based upon contractual requirements and applicable analytical criteria. The report generated as a result of the data validation process will provide a base upon which the usefulness of the data can be evaluated by the end user of the analytical results. The overall level of effort and specific data validation procedure to be used will be equivalent to "20% validation" of all analytical data in any given data package. Twenty percent validation is the minimum required by 10/93 6NYCRR Part 360. During the review process, it will be determined whether the laboratorysu it tals for sample results are supported by sufficient backup data and QA/QC results to enable the reviewer to conclusively determine the quality of data. Each data package will be checked for completeness and ' technical adequacy of the data. "Qualified" analytical results for any one field sample are established and presented based on the results of specific QC samples and procedures associated with its sample analysis group or batch. Precision and accuracy criteria (i.e., QC acceptance limits) are used in determining the need for qualifying data. Where test data have been reduced by the laboratory, the method of reduction will be described in the report. Reduction of laboratory measurements and laboratory reporting of analytical parameters shall be verified in accordance with the procedures specified in the NYSDEC program documents for each analytical method (i.e., recreate laboratory calculations and data reporting in accordance with the method specific procedure). The standard operating guidelines manuals and any ' special analytical methodology required are expected to specify documentation needs and technical criteria and will be taken into consideration in the validation process. •1314\S0315503(R02) 4-26 1 Upon completion of the review, a summary report will be developed to include a cover letter, a brief summary of each QA/QC parameter, the completed QA/QC check lists for each data package and the "qualified" analytical results for each sample analyzed. This summary report will be submitted to the NYSDEC as part of the closure investigation report. The following is a description of the two-phased approach to data validation planned to be used in this project. The first phase is called checklisting and the second phase is the analytical quality review, with the former being a subset of the latter. I • Checklisting - The data package is checked for correct submission of the contract required deliverables, correct transcription from the raw data to the required deliverable summary forms and proper calculation of a number of parameters. • Analytical Quality Review - The data package is closely examined to recreate the analytical process and verify that proper and acceptable analytical techniques have been performed. Additionally, overall data quality and laboratory performance is evaluated by applying the appropriate data quality criteria to the data to reflect conformance with the specified, accepted QA/QC standards and contractual requirements. 111 4.6.1.1 -Performance and System Audits The laboratory will be a NYSDOH ELAP and CLP certified laboratory satisfactorily completing performance audits and performance evaluation samples. 4.6.1.2-Data Validation Corrective Action The validator will use the USEPA Functional Guidelines along with the NYSDEC QC requirements to validate the data. If the validator discovers non-compliance with QC criteria, transcription errors or calculation errors, a notice is prepared and sent to the laboratory and the Town twhich summarizes the deficiencies. The laboratory then has five days to respond to the validator. The validator then evaluates the laboratory's response and qualifies the data or corrects the reported result. I *1314\S0315503(R02) 4-27 I 1 4.6.2 Data Usability Analysis A data usability analysis will be performed on all analytical data gathered during the Closure Investigation at the Southold Landfill. The data usability analysis will consist of an assessment of data quality objectives to determine if the objectives were met and if the validation criteria were met. Data will also be compared to previous sampling event results for the same sample locations in order to determine consistency. Various blank analyses, including field blanks, trip blanks, equipment rinsate blanks, and method blanks will be compared to sample analysis results to provide identification of possible non- Ilandfill contaminants introduced during sampling, shipping or analyses. The data validation report will evaluate the blank results to determine if certain compounds are site related or can be contributed to blank contamination. Matrix effects will be evaluated by utilizing the results of the matrix spike and matrix spike duplicate results. If the spiking recoveries are high, then certain compound results can be considered ' biased high and vice versa if the recovery is slow. Data will be determined to be compliant or non-compliant based on the NYSDEC ASP QC requirements. Data will be considered compliant if all QC requirements were met (i.e., calibrations run, blanks run, holding times met, etc.). The usability of non-compliant data will be determined by evaluating the result in comparison to previous sampling results. Additionally, sample analyses results will be evaluated in the context of geological, ' hydrogeological and meteorological conditions present during sampling. Should contamination be identified,this evaluation will include an assessment of the extent and mobility of contamination. Finally, the usabilityanalysis will compare SAP quality objectives to those standards reported during sampling and analyses. This comparison will include an evaluation of SAP required precision, accuracy, representativeness, comparability, completeness and defensibility of the data. a1314\S0315503(R02) 4-28 I 4.7 Field Management Forms I I I I I I I I I I I I I I I I *1314\S0315503(RO1) 4-29 I CIL- DVIRKA AND BARTILUCCI LOCATION SKETCH Project Sample Crew Sample(s) Location(s) Sample(s) and/or Well Number(s) Location of sample points, wells, borings, etc., with reference to three permanent reference points. Measure all distances, clearly label roads, wells and permanent features. DViRKA AND SAMPLE INFORMATION RECORD BARTILUCCI SITE SAMPLE CREW ISAMPLE LOCATION/WELLNO. FIELD SAMPLE I.D. NUMBER _ DATE TIME WEATHER TEMPERATURE SAMPLE TYPE: IGROUNDWATER SEDIMENT SURFACE WATER/STREAM ,AIR ISOII- OTHER (Describe,i.e.,septage, leachate) IWELL INFORMATION(fill out for groundwater samples): DEPTH TO WATER MEASUREMENT METHOD IDEPTH OF WELL MEASUREMENT METHOD IVOLUME REMOVED REMOVAL METHOD FIELD TEST RESULTS: ICOLOR pH ODOR TEMPERATURE(°F) SPECIFIC CONDUCTANCE(umhos/cm) IOTHER (OVA, Methane meter,etc.) I CONSTITUENTS SAMPLED: I REMARKS: I i WELL CASING VOLUMES GAL/FT 1-1/4"-0.077 2" =0.16 3" =0.37 4"=0.65 1-1/2"=0.10 2-1/2" =0.24 3-1/2" =0.50 6"= 1.46 I SIR u : I ► I : II I 1. One form is to be filled out for each sample location. 2. Fill in site identification and describe physical condition of site. 3. Fill in sample changes in sample when exposed type and describe condition of sample. Note any to air or changes in initial standing and pumped groundwater. 4. Measure and describe method(s) of determining depth to water and total well depth for ground- water samples. 5. Describe method of well evacuation and volume of water removed. 6. Record results of in situ monitoring. 7. Record the fractions sampled to be analyzed by the laboratory (volatile organic compounds, acid extractables, base neutrals, cyanide, phenol, pesticides, PCB's, metals, etc.). ' 8. Record any other information occurring at the site that may be useful in analyzing the sample data. ' 1 t I I ► 1 : Iu_ y ► I : : u I : u 1. Form is filled out and signed by the sampler. 2. Project Name - enter name of project ' Project Address - enter address of site Project Number- enter project job number Field Log Book Reference Number -enter number Sampled By -enter sampler's name and affiliation Split With -enter name and affiliation Sample Number- enter number Date - enter date of sampling Time -enter time of sampling ' SIR Composite/Grab Sample - check appropriate type Split Samples - check box Log Book Page Number - enter corresponding page number i Tag Number- enter number Sample-Location - enter specific location such as well number, boring number, etc. Number of Containers -enter number Remarks - enter special instructions, if any; appearance of sample, such as clear, cloudy, muddy; or odor, such as solvent, musty, etc. 3. Sampler and Receiver of samples signs, dates and enters time on form. I 1 1 SIR INN EN EN r M■ MN - MN MN - M - E MN E - MN - E dDVIRKA ' AND Receipt for Samples BARTILUCCI Project Name: Field Log Book Reference Number: Project Address: Sampled By: Project Number: Split With: C G LOG 0 R BOOK SAMPLE M A SPLIT PAGE NO.OF NUMBERS DATE TIME P B SAMPLES NO. TAG NUMBERS SAMPLE LOCATION CONTAINERS REMARKS Transferred by(Signature) Received by(Signature) Telephone Date Time Title Date Time RFS DVIRKA O ANBADRTILUCCI DAILY FIELD ACTIVITY REPORT i Reportum Number: Project Number: Date: b o� 1 Field Log Book Page Number: IProject: • Address: IWeather: (AM) Rainfall: (AM) Inches (PM): (PM) Inches 1 Temperature: (AM) °F Wind Speed: (AM) — MPH Wind Direction: (AM) - (PM) °F (PM) — MPH (PM) Site Condition: ' Arrival Departure Personnel On Site: Name Affiliation Time Time 1 i 1 i 1 1 1 Subcontractor Work Commencement: (AM) (PM) 1 Subcontractor Work Completion: (AM)_ (PM) 1 1 DB-DFAR DV1RKA QAN BARDT1LUCC1 DATE: ' DAILY FIELD ACTIVITY REPORT Work performed today by subcontractors) (includes equipment and labor breakdown): 1 I I 1 DB-DFAR DVIRKA I O AN BADRTILUCCI DATE: I DAILY FIELD ACTIVITY REPORT General work performed today by D&B: I I I 1 List specific inspection(s)performed and results (include problems and corrective actions): I I I List type and location of tests performed and results (include equipment used and monitoring results): I I I IVerbal comments received from subcontractor (include construction and testing problems, and recommendations/resulting action): I I I IPrepared by: Reviewed by: IDB-DFAR ' d-L, DVIRKA O AND -►.- BARTTLUCCI FIELD CHANGE FORM Project Name: Project Number: Field Change Number: Location: Date: Field Activity Description: IReason for Change: I 1 Recommended Disposition: 1 I Field Operations Officer(D&B Consulting Engineers) (Signature) Date IDisposition: On-site Supervisor(NYSDEC) (Signature) Date Distribution: Project Manager(D&B) Others as Required: Project Manager(NYSDEC) Field Operations Officer ' On-site Supervisor(NYSDEC) DB-FCF I DANTKA OAND BARTILUCCI I AIR MONITORING FORM PROJECT NAME: DATE: IPROJECT NUMBER: INSTRUMENT: IRECORDED BY: CALIBRATION DATE: WEATHER CONDITIONS: WIND SPEED OBSERVATIONS TIME LOCATION AND DIRECTION READING I I ' , I • I I I I I RECORDING PROCED CS: lAMP DVIRKA I O AN BARDTILUCCI DAILY EQUIPMENT CALIBRATION LOG I Project Name: Date: Project Number: Calibrated By: I Instrument Name Calibration and Model Number Method Time Readings and Observations I I I 1 j 1 ' I ► I . 1 _ ► I l' i i 1 ► ii 1 I I I I Ii - I I I 1 1 4.8 Monitoring Parameters Summary I I I I I I I I 1 I I I I I I I *1314\S0315503(R01) 4-30 I NIS MN I MN NM s t. r 11111 — NU E — — a V MR 1 all Table 4-3 MONITORING PARAMETERS Maximum Number Container Sample Holding Analytical Sample Location Sample Type Sample Matrix Sample Fraction of Samples Frequency Type/Size/No. Preservation Time Method Monitoring Grab Groundwater Baseline 18 I -- -- -- 6NYCRR Part Wells Parameters 360 (As below) Grab Groundwater Volatile Organics 18 1 Glass,clear/ Cool to 4°C 7 days after SW-846, 40 ml/2 VTSR for Method 8240 ICHEM 300 analysis Series or equivalent Grab Groundwater Metals 18 I Glass,amber/ HNO3 to 26 days after SW-846, IUl pH<2, VTSR for Hg Method 6010* ICHEM 300 Cool to 4°C analysis, Series or 6 months after equivalent VTSR for analysis of all others Grab Groundwater Cyanide 18 1 Glass,amber/ NaOH to 12 days after cW-846, IUI pH>12, VTSR for Method 9010 ICHEM 300 Cool to 4°C analysis Series or equivalent Grab Groundwater Leachate 18 1 See Table 4-4 See Table 4-4 See Table 4-4 6NYCRR Part Parameters 360(see Table 4-4) Method *and SW-846 methods for: Selenium 7740 Lead 7421 Thallium 7841 Mercury 7470 Arsenic 7060 VTSR: Validated Time of Sample Receipt to the Laboratory. *1314/S0315505 4-3 1 E — I MN M N all M s M M MI MN NM r M M all M Table 4-3(continued) MONITORING PARAMETERS Maximum Number Container Sample Holding Analytical Sample Location Sample Type Sample Matrix Sample Fraction of Samples* Freuuencv Type/Size/No. Preservation Time Method Leachate Seeps Grab Leachate Baseline 5 I -- -- -- 6NYCRR Part (if present) Parameters 360 (As below) Grab Leachate Volatile Organics 5 1 Glass,clear/ Cool to 4°C 7 days after SW-846, 40 ml/2 VTSR for Method 8240 ICHEM 300 analysis Series or equivalent Grab Leachate Metals 5 1 Glass,amber/ 1-1NO3 to 26 days after SW-846, 1L/1 pH<2, VTSR for Hg Method 6010** (CHEM 300 Cool to 4°C analysis, Series or 6 months after equivalent VTSR for analysis of I all others Grab Leachate Cyanide 5 1 Glass,amber/ NaOH to 12 days after SW-846, IL/1 pH>12, VTSR for Method 9010 ICHEM 300 Cool to 4°C analysis Series or equivalent Grab Leachate Leachate 5 1 See Table 4-4 See Table 4-4 See Table 4-4 6NYCRR Part Parameters 360(see Table 4-4) 1 *Dependent on field conditions/observations. Method **and SW846 Methods for: Selenium 7740 Lead 7421 Thallium 7841 i Mercury 7470 Arsenic 7060 VTSR: Validated Time of Sample Receipt to the Laboratory. 1 *1314/S0315505 4-32 N - MN R NM MN UN NE 1 NM - E 1 r N n EN MI - Table 4-3(continued) MONITORING PARAMETERS Maximum Number Container Sample Holding Analytical Sample Location Sample Type Sample Matrix Sample Fraction of Samples* Frequency Type/Size/No. Preservation Time Method Leachate Stained Grab Soil Baseline 5 I -- -- -- 6NYCRR Part Soil(if present) Parameters 360 (As below) Grab Soil Volatile Organics 5 I Glass,clear/ Cool to 4°C 7 days after SW-846, 40 ml/2 VTSR for Method 8240 ICHEM 200 analysis Series or j equivalent Grab Soil Metals 5 I Glass,amber/ Cool to 4°C 26 days after SW-846, 150 ml/1 VTSR for Hg Method 6010** ICHEM 200 analysis, Series or 6 months after equivalent VTSR for analysis of all others Grab Soil Cyanide 5 I Glass,amber/ NaOH to 12 days after SW-846, 150 m1/1 pH>12, VTSR for Method 9010 ICHEM 200 Cool to 4°C analysis Series or equivalent Grab Soil Leachate 5 I See Table 4-4 See Table 4-4 See Table 4-4 6NYCRR Part Parameters 360(see Table 4-4) I *Dependent on field conditions/observations. Method **and SW-846 methods for: Selenium 7740 Lead 7421 Thallium 7841 ! , Mercury 7470 Arsenic 7060 VTSR: Validated Time of Sample Receipt to the Laboratory. 41314/S0315505 4-33 - MINI MIMI 1111111 MINI NIS Mil IMO - - Mil INS MIN MN - MN - MINI - Table 4-3(continued) MONITORING PARAMETERS Maximum Number Container Sample Holding Analytical Sample Location Sample Type Sample Matrix Sample Fraction of Samples Frequency Type/Size/No. Preservation Time Method Site Matrix Liquid Baseline 2* 1 6NYCRR Spike/Matrix Parameters Part 360 Spike (As below) Duplicate Liquid Volatile Organics 2* 1 Glass,clear/ Cool to 4°C 7 days after SW-846, 40 m1/2 VTSR for Method 8240 ICHEM 300 analysis Series or equivalent I Liquid Metals 2* 1 Glass,amber/ Cool to 4°C 26 days after SW-846, 1 Ul HNO3 to VTSR for Hg Method 6010** ICHEM 300 pH<2 analysis, Series or 6 months after equivalent VTSR for analysis of all others Liquid Cyanide 2* 1 Glass,amber/ Cool to 4°C 12 days after SW-846, 1 UI NaOH to VTSR for Method 9010 ICHEM 300 PH>12 analysis Series or equivalent Liquid Leachate 2* 1 See Table 4-4 See Table 4-4 See Table 4-4 6 NYCRR Parameters Part 360(See Table 4-4 *Two sets of MS/MSD based on 23 liquid samples(18 groundwater,and 5 leachate). Method **and SW-846 methods for: Selenium 7740 Lead 7421 Thallium 7841 Mercury 7470 Arsenic 7060 VTSR: Validated Time of Sample Receipt to the Laboratory. 41314/S0315505 4-34 N MI E M 11111 1 NE MN 11111 111111 11111 MI1 E NE NI MN NM Table 4-3(continued) MONITORING PARAMETERS Maximum Number Container Sample Holding Analytical Sample Location Sample Type Sample Matrix Sample Fraction of Samples Frequency Tyne/Size/No. Preservation Time Method Site Matrix Solid Baseline 6NYCRR Spike/Matrix Parameters Part 360 Spike (As below) Duplicate Solid Volatile Organics I* 1 Glass,clear/ Cool to 4°C 7 days after SW-846, 40 ml/2 VTSR for Method 8240 ICHEM 200 analysis Series or equivalent Solid Metals 1* 1 Glass,amber/ Cool to 4°C 26 days after SW-846, 150 m1/1 VTSR for Hg Method 6010** ICHEM 200 analysis, Series or 6 months after equivalent VTSR for analysis of all others Solid Cyanide 1* I Glass,amber! Cool to 4°C 12 days after SW-846, 150 m1/1 VTSR for Method 9010 ICHEM 200 analysis Series or equivalent Solid Leachate I* 1 See Table 4-4 See Table 4-4 See Table 4-4 6 NYCRR Parameters Part 360(See Table 4-4 *One set of MS/MSD based on 5 solid samples(5 leachate stained soil). Method **and SW-846 methods for: Selenium 7740 Lead 7421 Thallium 7841 Mercury 7470 Arsenic 7060 VTSR: Validated Time of Sample Receipt to the Laboratory. *1314/S0315505 4-35 E 1 EN EN 1 I EN N 11111 MI NM IIMI MN MN M Table 4-3(continued) MONITORING PARAMETERS Maximum Number of Container Sample Holding Analytical Sample Location Sample Type Sample Matrix Sample Fraction Samples Frequency Type/Size/No. Preservation Time Method Site Field Blank Water Baseline I* 1 -- -- -- 6NYCRR Part Parameters 360 (As below) Field Blank Water Volatile Organics l* I Glass,clear/ Cool to 4°C 7 days after SW-846 40 m1/2 VTSR for Method 8240 ICHEM 300 analysis Series or equivalent Field Blank Water Metals 1* 1 Glass,amber/ HNO3 to 26 days after SW-846, 1L1 pH<2, VTSR for Hg Method 6010** ICHEM 300 Cool to 4°C analysis, Series or 6 months after equivalent VTSR for analysis of all others Field Blank Water Cyanide 1* 1 Glass,amber/ NaOH to 12 days after SW-846, I Ll pH>12, VTSR for Method 9010 ICHEM 300 Cool to 4°C analysis Series or equivalent Field Blank Water Leachate I* 1 See Table 4-4 See Table 4-4 See Table 4-4 6 NYCRR Parameters Part 360 , (See Table 4-4) Trip Blank Water Volatile Organics 5*** I Glass,clear/ Cool to 4°C 7 days SW-846, 40 m1/3 after VTSR Methods 8240 ICHEM 300 for analysis Series or equivalent *One field blank based on one type of sampling equipment(bailer). Method **and SW-846 methods for: Selenium 7740 Lead 7421 Thallium 7841 Mercury 7470 Arsenic 7060 ***As required by 1991 NYSDEC ASP,based on 5 shipments of liquid samples requiring VOA analysis. VTSR: Validated Time of Sample Receipt to the Laboratory. *1314/S0315505 4-36 11111 Ell =I 11111 11111 MIN En NM 11111 Ell MB INN MN 11111 Table 4-4 LEACHATE PARAMETERS METHOD OF ANALYSIS,PRESERVATION AND HOLDING TIMES* Parameter Method of Analysis Preservation** Container Holding Time Ammonia Method 350.3 H2SO4 to pH<2; Plastic or Glass 26 days Cool to 4°C Total Organic Method 415.1 HCl or H2SO4 Glass 26 days Carbon to pH<2; Cool to 4°C Total Dissolved Method 160.1 Cool to 4°C Plastic or Glass 26 days Solids Alkalinity Method 310.1 Cool to 4°C Plastic or Glass 12 days Chloride Method 325.3 None Required Plastic or Glass 26 days pH Method 150.1 None Required Glass Field Measurement Specific Method 120.1 None Required Glass Field Measurement Conductance Total Kjedahl Method 351.3 H2SO4 to pH<2; Plastic or Glass 26 days Nitrogen Cool to 4°C Nitrate Method 352.1 H2SO4 to pH<2; Plastic or Glass 26 days Cool to 4°C BOD(5-day) Method 405.1 Cool to 4°C Plastic or Glass 24 hours *Taken from the 1991 NYSDEC ASP. **For soil samples:preservation is cool to 4°C only *1314/S0315505 4-37 - NM MINI Mil IIIIII MINI - - 1111 EN 11111 11111 - OM 11111 MI 111111 Table 4-4(continued) LEACHATE PARAMETERS METHOD OF ANALYSIS,PRESERVATION AND HOLDING TIMES* Parameter Method of Analysis Preservation** Container Holding Time COD Method 410.1 H2SO4 to pH<2; Plastic or Glass 26 days Cool to 4°C Sulfate Method 375.4 Cool to 4°C Plastic or Glass 26 days Chromium Method 218.5 Cool to 4°C Plastic or Glass 24 hours (hexavalent) Color Method 110.2 Cool to 4°C Plastic or Glass 24 hours Hardness Method 130.2 HNO3 to pH<2; Plastic or Glass 6 months (total) Cool to 4°C Turbidity Method 180.1 None required Plastic or Glass Field Measurement Boron Method 212.3 None required Plastic 26 days Eh -- None required Glass Field Measurement Phenol Method 420.1 H2SO4 to pH<2 Plastic or Glass 28 days Cool to 4°C *Taken from the 1991 NYSDEC ASP. **For soil samples:preservation is Cool to 4°C only. *1314/S0315505 4-38 I I4.9 NYSDEC Requirements For A Data Validator I I I I I I I I 1 I I I I I I I 41314\S0315503(RO 1) 4-39 II 1 IIDATA VALIDATION SCOPE OF WORK - NYSDEC RI/FS PROGRAM II Data validation is the systematic process by which the data quality is determined with respect to data quality criteria that are defined in project and laboratory quality control programs and in the referenced analytical methods. The data validation process consists of an I assessment of the acceptability or validity of project data with respect to stated project goals and requirements for data usability. Ideally, data validation establishes the data quality in terms of I project data quality objectives. Data validation consists of data editing, screening, checking, auditing, certification, review, and interpretation. The purpose of data validation is to define and document analytical data quality and determine if the data quality is sufficient for the intended use(s) of the data. In accordance with IDEC requirements, all project data must be of known and acceptable quality. Data validation is performed to establish the data quality II for all data which are to be considered when making project decisions. Laboratories will be required to submit results which are supported by sufficient back-upthe mdata and gQA/QC results to enable the reviewer to II conclusively ck DUTIES AND QUALIFICATIONS OF A DATA VALIDATOR II + In order to ensure an acceptable level of performance, the following qualifications and requirements are established for all consultants/contractors functioning as data validators. These qualifications and requirements shall apply whether the- ` consultant/contractor is: a) retained directly through contracts executed by this agency; b) retained as a subcontractor to a consultant functioning under contracts executed by this agency or c) retained by a responsible party functioning under the guidance and Idirection of an order on consent. Consultant/Contractor functioning as a data validator shall be independent of the laboratory generating 1 the data. The consultant/contractor functioning as a data validator shall II provide evidence that all staff members involved in the data validation process have: a) a bachelors degree in chemistry or • natural sciences with a minimum of 20 hours in chemistry; b) one (1) year experience in the implementation and application of the II protocol (s) used in generating the data for which they are responsible. The successful completion of the EPA Data Validation Training Course may be substituted for the analytical expgrience II requirement. In addition, these same staff members must have a minimum of one (1) year experience evaluating CLP data packages for contract and protocol compliance. •1 -1- 1 • II The consultant must provide the resume of the proposed third party II data validaaloforwith a reviewandecent atapprovalabyatheaDivisionoby that validatorof Hazardous Waste Remediation Quality Assurance Officer. 1 The independent data validator is also required to meet with a data validator of the Quality Assurance Section prior to reviewing the II first data package. Consistent with the Division's Quality Assurance Program Plan, all laboratory data generated in support of any investigation, remediation I or monitoring activity carried out under the Division's program responsibility shall be developed under the administrative and To operational control of a Quality Assurance Project Plan (QAPjP) . this end the QAPjP shall become an integral part of the Project Work II Plan and those portions that pertain to the development and production of analytical data shall define the task of the laboratory charged with devwol�kiP9anand shalldincludehtheis dfollowing ata. The QinfoPmationart of the IProjett 1. The number and types of samples that are to be analyzed. 2. The sample holding times that must be observed and the time from which these holding times shall be measured. II 3. The list of analytes to be identified and quantified during the analytical process. 4. The site specific limits of concern for each of the analytes II listed in each of the matrices to be sampled. II 5. The matrix specific method detection limits that must be obtained for each of the analytes and matrices listed (this value should be in the neighborhood of 1/5 the site specific limit of concern). 6. The analytical protocols that shall be employed including any special handling or cleanup procedures that may be IIrequired. 7. The frequency and types of any required quality control II samples e.g. , trip blanks, rinse blanks, replicates, matrix spikes and matrix spike duplicates. II 8. The identiftreatmentfthat theyany ia�ay require cal sampleand any special analytical 9. The eediffer fromdeliverables notand asupporting theor required where II aneS analytical protocols. II -2- II 1 In urder to facilitate the data validation process, copies of the project Work Plan, Quality Assurance Project Plan (addressing the above referencedlistn osupp of information), andrwith the laboratorypsubcontractect ired shall deliverables and supporting be submitted to the firm contracted to carry out the data validation portion of the standby contract. 1 • 1 1 1 1 1 1 • 1 1 1 II : 1 -3_ 1 1 Task I : Completeness The Validator shall review the consistpackage the followingdetermine eightcompleteness. IA complete data package will components: II 1. All sample chain of custody forms. 2. The case narrative(s) including all sample/analysis summary forms*. 3. Quality Assurance/Quality Control summaries including all supporting documentation. II4. All relevant calibration data including all supporting documentation. I 5. Instrument and method performance data. II ity to ttain 6. conttasieclmethod detectionng the ylimitslfor allatargetthe contract specified analytes in all required matrices. 7. All data report forms including xmples of the calculations used in determining final concentrations. 8. All raw data used in the identification and quantitation of the IIcontract specified target compounds. *Theorms II ag fang willar as an berequireddforum allothe NYSDEC CLP data submissionsfr regardless package and of the protocol requested. II All deficiencies in the regiirement for The laboratorytshall beacontactedbe obyed to the consultant immediately. the consultants umentationshall necessarygiven to remove the calendar thedeficiencito es produce the doc Task II: Compliance The Validator shall revOrtions ofew the btheted workata planathatepertainto etolthe Icompliance with those p production of laboratory data. Compliance is defined by the following criteria. I1. The data package is complete as defined in Task 1 above. 2. The data has been produced theand QAPjPreported the laboratory consistent with the requirements subcontract. II3. All protocol required QA/QC criteria have been met. -4- II II 4. All thettimenframetune durand ingcalibration the analyses were requirements have werecompleted. Ifor 5. All protocol required initial and continuing calibration data is II present and documented. 6. All data reporting forms are complete for all samples submitted. This will include all requisite flags, all sample II dilution/concentration factors and all premeasurement sample cleanup procedures. 7. All problems encountered during the analytical process have been II reported in the case narrative along with any and all actions taken by the laboratory to correct these problems. II The data validation task requires that the Validator conduct a detailed comparison of the reported data with the raw data submitted as part of the supporting documentation package. It is ' the responsibility of the Vv/idator to determine that the reported data can be completely substantiated by applying protocol defined procedures for the identification and IIquantitation of the individual analytes. To assist the Validator in this determination the following documents are recommended; however, the EPA Functional Guidelines will be used for format II only. The specific requirements noted in the Project Quality Assurance Project Plan are prerequisite,efor roexample e nhoholding g the times or special analytical project Functional Guidelines. II 1. The particular protocol(s) ander which the data was generated II e.g. , NYSDEC Contract Laboratory Protocol; EPA SW-846; EPA Series 500 Protocols. 2. Data validation guidance documents such as: Ia. "Functional Guidelines for Evaluation Inorganic Data' (published by EPA Region 2). ' b. "Functional Guidelines for Evaluation Organics Analyses" Technical Directive Document NO. HQ-8410-01 (published by 11 EPA). c. "Functional Guidelines for Evaluating Pesticides/PCB's Analyses" Technical Directive Document NO. HQ-8410-01 II (published by EPA). NOTE: These documents undergo periodic revision.—It is assumed that the selected firm will have access to IIthe most current applicable documents and guidelines. 1 . 1 . -5- 1 • The Validator shall submit a final report covering the II results of the data review process. This report shall be submitted to the Project Manager or his designee and shall include the following: 1 1. A general assessment of the data package as determined by the accomplishment of Tasks I-II above. II • 2. Detailed descriptions of any and all deviations from the required itiust include references to the portions of the protocols involved in the alleged deviations). 1 3. Any and all failures in the Validator's attempt to reconcile the reported data with the raw data from which it was derived. (Aga ,bespecific includedeinrtheevalidats must be ionirepodtd). Telephone logs Ishould 4. A detailed assessment by the Validator of the degree to which the data has been compromised by any deviations from protocol , QA/QC IIbreakdowns, lack of analytical control , etc. , that occurred during the analytical process. li . 5. The report shall include, as an attachment, a copy of the laboratory's case narrative including the DEC required sample and analysis summary sheets. 6. The report shall include an overall appraisal of the data package. 7. The validation report shall include a chart presented in a naaaspread sheet format, consisting ° site of C Pname, orsanalyticalmple ers,protocol used, submitted to laboratory, year matrix, fractions analyzed, e.g. , volatiles, semi-volatiles, Pest/PCB, Metals, CN. Space should be provided for a reference II to the NYSDEC CLP when non compliancy is involved and a column for an explanation of such violation. (See attached form) i II 1 11 II ' :.— i 1 - - s -6- 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1111 1111 1 . f 1, 1 VOA BNA Pest/PCB Metals Total Page No. Non-Compliancy Date LP Sample Matrix Compliancy Compliancy Compliancy Compliancy CN Phenols in the ear No. CLP h. 4 • l I . I I t 1 . r . 7 4.10 NYSDEC Sample Identification,Preparation and Analysis Summary Forms 1 1 1 I 41314\S0315503(R01) 4-40 1 To be included with all lab data and with each workplan NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION 1 SAMPLE IDENTIFICATION AND ANALYTICAL REQUIREMENT SUMMARY 1 Customer Laboratory Analytical Requirements* I Sample Sample Code Code *VOA *BNA *VOA *PEST *METALS ' *OTHER GC/MS GC/MS GC PCB 1 1 1 � 1 1 1 ` 1 1 l i 1 ' 1 *Check Appropriate BoxesII * CLP, Non-CLP (Please indicate year of protocol) * HSL, Priority Pollutant 1 1 1 B-186 9/89 I NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION SAMPLE PREPARATION AND ANALYSIS SUMMARY r ANB/N- ILaboratory I Matrix Date Date Rec' d Date Date Sample ID Collected At Lab Extracted Analyzed I I I 1 ' I I I I • I f . I � I I I I I B-187 9/89 NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION • ' SAMPLE PREPARATION AND ANALYSIS SUMMARY PESTICIDE/PCB ' ANALYSES Laboratory Matrix 1 Date Date Rec'd Date Date IISample ID Collected At Lab . Extracted Analyzes_ 1 1 1 1 I 1 I 1 1 1 1 1 B-188 /s 89 NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION SAMPLE PREPARATION AND ANALYSIS SUMMARY VOA ANALYSES 1 Laboratory Matrix Date Date Recd Low Level Date Sample ID Collected At Lab Med. Level Analyze 1 • 1 1 1 I l 1 1 1 1 ' 1 1 1 1 1 B-189 9/89 NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION SAMPLE PREPARATION AND ANALYSIS FORM I8/N-A ORGANIC ANALYSES Sample ID Matrix AnalyticalI Extraction Auxilary Dil/Conc 1 _Protocol Method _Clean Uo Factcr i 1 • • 1 I 1 1 1 1 1 1 1 I I 1 1 1 B-190 9/89 1 NEW YORK STATE DEPARTMENT OF ENVIRONMENTAL CONSERVATION SAMPLE PREPARATION AND ANALYSIS SUMMARY INORGANIC ANALYSES ISample ID Matrix Metals Requested Date Rec ' d Date Analyzed 1 1 1 I 1 1 1 I 1 1 1 1 1 1 B-191 9/89 I 1 4.11 Data Validation Reporting Forms I I I I I I I I I I I I I I 1 I •1314\S0315503(R01) 4-41 II DATA VALIDATION-ORGANICS Site Name: Laboratory Name: Reviewer: Date of Review: tI . Data Deliverable Requirements ' A. Legible Yes No B. Paginated Yes No 1 C. Arranged in order Yes No D. Consistent dates Yes No ' E. Case Narrative Yes No F. Chain-of-Custody Record Yes No G. Sample Data Complete Yes No H. Standard Date Complete Yes No I. Raw QC Data Complete Yes No Comments: 111 11 I I DATA VALIDATION-ORGANICS ISite Name: Laboratory Name: IReviewer: Date of Review: II . Holding Times I Date Date Date Holding Time I5amnie I .D. Received Extracted Analyzed Exceeded ? I 1 I I I 1 I I I 1 DATA VALIDATION-ORGANICS 1 Site Name: Laboratory Name: 1 Reviewer: Date of Review: 1 Fraction: III . rune Summary 1 1 . • Tun - Fil - . 1 . N m• - A - . . ? •uu 11 . 2 . 1 4 . 1 5. 1 6. 7 . 1 8. 9 . 1 10. i 1 1 1 1 1 1 ' DATA VALIDATION—ORGANICS Site Name: Laboratory Name: Reviewer: Date of Review: Fraction: ' IV. Initial Calibration Summary (GC/MS ) Date of Calibration: A. Standard Data Files ' Standard 1 ID: Conc: Standard 2 ID: Conc: ' Standard 3 ID: Conc: Standard 4 ID: Conc: Standard 5 ID: Conc: ' B. 1 . All SPCC met Criteria ? Yes No ' 2. Calculate a SPCC average RRF ' Comments: DATA VALIDATION—ORGANICS Site Name: Laboratory Name: Reviewer: Date of Review: ' Fraction: Date of Calibration: ' IV. Initial Calibration Summary (continued) ' 2. All CCC met Criteria ? Yes No Comments: Calculate a CCC Z RSD C. 1 . Was the tune for the initial calibration acceptable ? ' Yes No 2. Was the calibration conducted within 12 hours of the tune ? Yes No Comments: 0. Overall assessment of the initial calibration: (list the associated samples) DATA VALIDATION-ORGANICS Site Name: Laboratory Name: Reviewer: Date of Review: V. Pesticide Initial Calibration Summary ' Column: primary confirmation Date of Calibration: A. Analytical Sequence Check Y q IAcceptable ? Yes No Comments: ' B. Was the retention time of 4,4'-DOT greater than 12 minutes ? Yes No Comments: C. Was the linearity check criteria (± 10% RSD on the quantitation column) met ? Yes No Calculation Comments: 1 ' DATA VALIDATION-ORGANICS Site Name: Laboratory Name: Reviewer: Date of Review: Y. Pesticide Initial Calibration Summary (continued) Date of Calibration: D. was the breakdown of 4,4'-DOT and Endrin less than 20% ? Yes No (<20% each for the 1% column) ( <20% combined for the 3% OV-1 column) Calculation Comments: E. were the retention times and retention time windows acceptable ? Yes No Comments: F. Overall assessment of the initial calibration: (list the associates samples) I I DATA VALIDATION—ORGANICS Site Name: Laboratory Name: Reviewer: Date of Review: Fraction: VI . Continuing Calibration Summary (GC/MS) Date of Initial Calibration: Date of Continuing Calibration: File ID: ' A. 1 . All SPCC met criteria ? Yes No Calculate a SPCC RRF Comments: I 2. All CCC met criteria ? Yes No Calculate a CCC I D ' Comments: 11 B. Overall assessment of Continuing Calibration (list associates samples) 1 - ' DATA VALIDATION—ORGANICS Site Name: Laboratory Name: Reviewer: Date of Review: VII . Pesticide continuing Calibration Summary ' Column: primary confirmation Date of Initial Calibration: Date of Continuing Calibration: File ID: A. Old the pesticide standard compounds show a % 0 of the calibration factor of less than 15% if it was a quantitation run or 20% if 1t was a confirmation run for all compounos identified ? Yes No Calculate a compound's calibration factor for the standard. I r Calculate a compound's % D value. I Comments: I I ' DATA VALIDATION-ORGANICS Site Name: Laboratory Name: Reviewer: Date of Review: tVII . Pesticide continuing Calibration Summary (continued) Date of Continuing Calibration: File ID: ' B. Did each compound's retention time fall within the window ? Yes No Comments: C. Were the OBC retention time shifts within the specified limits (± 2Z - 11 for packed columns. ± 0.31 for capillary columns) Yes No Calibrate a DBC RT % D 11 Comments: D. Overall assessment of the continuing calibration: (List the associated samples) I DATA VALIDATION-ORGANICS Site Name: Laboratory Name: ' Reviewer: Date of Review: ' Fraction: ' VIII . Internal Standard Area Summary (GC/MS) Were all internal standard peak areas within the contract limits ? Yes No If No, please note below. ' Internal Standard Amount Above �amoie Outside Limits Contract Requirement Comments I I I I I DATA VALIDATION-ORGANICS Site Name: Laboratory Name: 1 Reviewer: Date of Review: 1 Fraction: 1 IX. Blank Summary Date/Time of Analysis: File ID: 1 Cc-nound cgagtration < Rel. Comments 1 i 1 1 1 1 t List the samples associated with this method blank. 1 1 1 1 DATA VALIDATION-ORGANICS Site Name: Laboratory Name: 11 Reviewer: _ Date of Review: Fraction: ' X. Surrogate Recovery Summary Were all surrogate recoveries within the contract limits ? Yes No If No. please note below. Surrogate Compound Amount Above ' Samole Outside Recovery limits Contract Requirement Comments I I ' DATA VALIDATION—ORGANICS ' Site Name: Laboratory Name: ' Reviewer: Date of Review: ' Fraction: ' XI . Matrix Spike/Matrix Spike Duplicate Summary Sample ID: Matrix: Did the MS/MSD recovery data meet the contract recommended requirements ? Yes No i If No, please note below. 11 I 11 DATA VALIDATION - METALS Site Name: Laboratory Name: Reviewer: Date of Review: I . Holding times Date Date Date Holding Time Sample 1 .D. Received Digested Analyzed Exceeded? 1 1 I i 1 1 DATA VALIDATION - METALS Site Name: Laboratory Name: Reviewer: Date of Review: 1 Associated Samples: II . Initial Calibration 1 . Were all initial instrument calibrations performea? 1 Yes No Comments: 1 2. Were the initial calibration verification standards analyzed at the contract specified frequency? 1 Yes No 1 Comments: 3. Were the initial calibration results within the control limits listed 1 below? For tin and mercury: 80-120% of the true value For all other metals: 90-110% of the true value 1 Yes No 1 If "No", note analytes i 1 1 DATA VALIDATION - METALS 11 Site Name: Laboratory Name: Reviewer: Date of Review: ' Associated Samples: III . Continuing Calibration I . Were the continuing calibration verification standards analyzed at the ' contract specified frequency? Yes No ' Comments: 2. Were the continuing calibration results within the control limits listed ' below? For tin and mercury: 80-120% of the true value ' For all other metals: 90-110% of the true value Yes No If "No note analytes I I I DATA VALIDATION - METALS I S 'te Name: Laboratory Name: ' reviewer: Date of Review: I IIV. 31ank Summary A. Method Blanks I1 . Was a method blank prepared ana anaiyzea at the contract specified frequency? Yes No 2. Were all the analytes below the CROL in the method blank? Yes No Comments: 3. Calibration Blanks 1 . Were all initial and continuing calibration blanks analyzed at the contract specified frequency? IYes No 2. Were all the analytes below the CRDL in all the calibration blanks? IYes No Comments: I I I I I DATA VALIDATION - METALS Site Name: Laboratory Name: Date of Review: Re,iewer: V. Duplicate Analysis 1 . Was a duplicate prepared and analyzed at the contract specified Creauency? Yes No Comments: I2. Were control limits for the relative percent differences (RPD) met for each analyte? Yes No Comments: For sample values >5 times the CROL, the RPO control limit is t20%. For sample values <5 times the CROL, the RPO control limit is tCRDL. If sample results were outside of the limits,ed allh a data associated with that duplicate sample should I t 1 DATA VALIDATION - METALS Site Name: Laboratory Name: Reviewer: Date of Review: 1 VI . Matrix Spike Analysis 1 . Was a matrix spike prepared and analyzed at the contract specified frequency? Yes No Comments: 1 2. Were the matrix spike recovereis within the contract specified control limits (75-125%)? Yes No 1 If "No", note analytes Datashould have concentrationeed with " exceedsthefor analytes spikeconcentrationcbytaolimits. factor If thee of sample four or more, no flag is required. 1 1 1 1 1 1 1 1 DATA VALIDATION - METALS 1 Site Name: Laboratory Name: Reviewer: Date of Review: 1 VII . ICP Interference Check Sample Summary 1 . Was the ICP serial dilution analyzed at the contract specified frequency? 1 Yes No 1 Comments: 2. Were the serial dilution differences within the contract specified limits of +:w-10%? 1 Yes No Comments 3. Was the ICP CRDL check standard analyzed at the contract specified frequency for the analytes required? Yes No Comments 1 1 1 1 1 1 1 - METALS DATA VALIDATION 1 Site Name: Laboratory Name: 1 reviewer: Date of Review: 1 VII . ICP Interference Check Sample Summary (continued) : 4 . Was the ICP interference check sample analyzed at the contract specified freouency? ' Yes No Comments: 1 5. Were the ICP interference check sample results within the control limit of t=w-20% of the mean value? Yes No If "No", note analytes 1 I i I 1 1 1 1 1 DATA VALIDATION - METALS Site Name: Laboratory Name: Reviewer: Date of Review: VIII . Laboratory Control Sample Analysis 1 . Was a laboratory control sample analyzed at the contract required Frequency? Yes No Comments: 2. Were the perecent recoveries within the control limits of 80-120% (except for Ag and Sb) for each analyte? Yes No ' Comments I • i DATA VALIDATION - METALS Site Name: Laboratory Name: Reviewer: Date of Review: IX. Furnace Atomic Absorption Analysis ' 1 . Were duplicate injections performea for all analytes (except for the Method of Standard Addition [MSA) which requires single injections only)? Yes No Comments: 2. Where the concentrations were above the CROL, did the two runs agree ' within 20% of the relative standard deviations for each analyte? Yes No If "No", note analytes and check to see if the analytes were run again. if reminds are still outside the control limits, all data associated with that analysis should have been flagged with an "M". 3. Did the preparation blank analysis produce spike recoveries of 85-115%? Yes No 11 Comments DATA VALIDATION - METALS ' Site Name: Laboratory Name: Reviewer: Oate of Review: IX. Furnace Atomic Absorption Analysis (continued): ' 4 . Were analysis (post digest) spikes performea on all required samples and concentration levels (2x CRDL)? Yes No Comments 5. For those samples whose initial spike recovery was less than 40%, was sample dilutin and respiking performed? Yes No Comments 6. Was the M5A performed at the contract specified frequency and did it follow the contract specified criteria? ' Yes No Comments 1 - I I I4.12 Data Quality Requirements and Assessments I I I I I I I I I I I I I I I I 41314\S0315503(R01) 4-42 I SECTION I II CLP ORGANICS Superfur Target Compound List (TCI.) and Contract Required Quantitation Limits (CRQL) * IQuantitation Limits** Low Water Low Soil/SedimentII ? Volatiles CAS Number uT ug/Kg 10 10 1. Chlorameth`�ne 74-87-3 10 2. Braturethane 74-83-9 10 I 3. Vinyl chloride 75-01-4 10 10 4. Chloroethane 75-00-3 10 10 Methylene chloride 75-09-2 5 5, IS. 6. Aced 67-64-1 10 10 7. Carbon Disulfide 75-15-0 5 5 II 8. 1,1-Dichloroethylene 75-35-4 5 5 9. 1,1-Dichloroethane 75-35-3 5 5 10. 1,2-Dichloroethyleneltotal) 540-59-0 5 5 II 11. Chloroform 67-66-3 5 5 12. 1,2-Dichloroethane 107-06-2 5 5 13. 2-Butanone 78-93-3 10 10 II 14. 1,1,1-Trichloroethane 71-55-6 5 5 15. Carbon tetrachloride 56-23-5 5 5 II 16. Vinyl acetate 108-05-4 10 10 5 , . . - 17. H�h c�ranetha:he 75-27-4 5 18. 1,1,2,2-Tetrachloroethane 79-34-5 5 5 19. 1,2-Dichloropropane 78-87-5 5 5 I20. cis-1,3-DichlorcQropP.ne 10061-01-5 5 5 21. Trichloroethene 79-01-6 5 5 II 22. Dibramchlorrnethane 124-48-1 5 5 23. 1,1,2-Trichloroethane 79-00-5 5 5 24. Benzene 71-43-2 5 5 I 25. trans-1,3-Dichlozvpz 10061-02-6 5 5 26. Broaoform 75-25-2 5 5 27. 2-Bexanoc�e 591-78-6 10 10 I28. 4-Methyl-2-pentanone 108-10-1 10 10 29. Tetrachloroethylene 127-18-4 5 5 30. Toluene 108-88-3 5 5 II 31. Chlorobesszene 108-90-7 5 5 32. Ethyl Benzene 100-41-4 5 5 33. Styrene 100-42-5 5 5 I34. Total Xylenes 1330-20-7 5 5 aMedium Soil/Sediment Contract Required Quantitation Limits is (CSI,) for Volatile TCL Caiounds are 100 times the individual Low Soil/Sediment CIQL.. I *Specific quantitation limits are highly matrix dependent. The Quantitation limits listed herein are provided for guidance and may not always be achievable. **Quantitation Limits listed for soil/sediment are based on wet weight. The I quantitation limits calculated by the laboratory for soil/sediment, calculated an dry weight basis, as required by the protocol, will be higher. I r-, I ISECTION II CLP INORGANICS I Supernind Target Compound List (TCL) and Contract Required QUantltatIOn Limit IIContract Required Quantitation Levels 2 Parameter (ug/L) I 1. Aluminum 200 I 2. Antimony 60 3. Arsenic 10 4. Barium 200 I5. Beryllium 5 6. Cadmium5 II 6. Calcium 5000 8. Chromium 10 I9. Cobalt 50 10. Cower 25 I11. Iron 100 12. Lead 5 I 13. Magnesium 5000 14. Manganese 15 II 15. Mercury 0.2 16. Nickel 40 17. Potassium5000 I18. Selenium 5000 19. Silver 10 I20.- Sodium 5000 21. Thallium 10 I 22. Vanadium 50 23. Ziac 20 II24. Cyanide 10 I I II C-6 CLP Inorganics ' (continued) 1: Any analytical method specified in Exhibit D, CLP-Inorganics may be utilized as long as the documented instrument or method detection limits meet the Contract Required Quantitation Level (CL) ' requirements. Higher quantitation levels may only be used in the following circumstance: If the sample concentration exceeds two times the quantitation limit of the instrument or method in use, the value may be reported even though the instrument or method detection limit may not equal the contract required quantitation level. This is illustrated in the example below: ' For lead: Method in use s ICP Instrument Detection Limit (IDL) = 40 Sale concentration = 85 Contract Required Quantitation Level (CSL) = 5 The value of 85 may be reported even though instrument detection limit is greater than Contract Required Quantitation Limit. The instrument or method detection limit rust be documented as described in Exhibit E. 2: These C., are the instrument detection limits obtained in pure water that must be met using the procedure in Exhibit E. The quantitation limits for samples may be considerably higher depending on the sample matrix. 1 1 C-7 1 4.13 Quality Assurance Officer Resume I I I I I 41314\S0315503(R01) 4-43 ROBBIN A. PETRELLA Senior Scientist Quality Assurance Officer Education SUNY at Buffalo, B.S. (Chemical Engineering)- 1986 Professional Experience Ms. Petrella's professional experience involving quality assurance and quality control spans 8 years. During this time, she served as a Sample and Data Analyst for two large environmental laboratories. Ms. Petrella was responsible, as Data Review Group Leader, for supervision of data ' validation and QA/QC coordination between the laboratory and clients. Her technical experience includes both the analysis and review of environmental samples using numerous protocols, including those developed by the United States Environmental Protection Agency (USEPA), New York State Department of Environmental Conservation (NYSDEC) and New Jersey Department of Environmental Protection and Energy(NJDEPE). Since joining the firm, Ms. Petrella has been responsible for preparing Quality Assurance/Quality Control Plans and Waste Analysis Plans for Chemical Waste Disposal, Inc.. IBM and Grumman Corporation. She has also prepared overall QA/QC programs for the Grumman Laboratories. Ms. Petrella has prepared QA/QC Plans and data validation/usability reports for remedial investigation and feasibility studies conducted at Superfund sites in Cheektowaga, Schodack and North Tonawanda, New York. These tasks involved evaluating the laboratory data to determine compliance ' with NYSDEC Analytical Services Protocol (ASP) and to determine usability if the data was not in accordance with ASP requirements. Ms. Petrella has assisted in the preparation and conduct of air sampling programs for remedial investigation/feasibility studies (RI/FS) conducted in Wallkill, New York and East Northport, New York. She has also performed water supply sampling for a RDFS in Rensselaer County, New York, and a surface and subsurface water and soil sampling program as part of a RDFS in Elmira, New York. Ms. Petrella has also acted as the QA/QC officer, and prepared and performed field and rsampling audits for Superfund site studies in Tonawanda, New York; Owego, New York; Brookhaven, New York; and Hornell, New York, and for a major railroad facility in New York City. She has also assisted in the preparation of laboratory contracts for analytical services for hazardous waste studies in Schodack, New York; Jamaica, New York; and the New York State Superfund Standby Contract. Ms. Petrella is responsible for reviewing all field forms for Preliminary Site Assesssment (PSA) and RI/FS sampling programs. She is also responsible for reviewing Chain-of-Custody records for all field programs undertaken by the firm and coordinating with laboratories during the sampling programs. I ♦RAP1094.HW ROBBIN A. PETRELLA Ms. Petrella is responsible for performing laboratory audits on all laboratories having contracts with the firm as part of the New York State Superfund Program. She was also responsible for preparation of the landfill gas investigation work plan and report for a New York State Superfund site in Huntington, New York. Ms. Petrella has been certified by the USEPA in both organic and inorganic data validation by ' successfully completing courses authorized by the USEPA. These certifications have also been accepted by the NYSDEC. Ms. Petrella is responsible for the data validation of all data packages from an ongoing hydrogeologic investigation in Brookhaven, New York. Ms. Petrella is presently the Quality Assurance/Quality Control officer for the firm and responsible for reviewing all work relating to Quality Assurance/Quality Control for hazardous waste projects undertaken by the firm. She is also responsible for preparation and maintenance of the ' Corporate Quality Assurance Manual, and for inventory and maintenance of the firm's field/sampling and monitoring equipment. As the QA/QC Officer, she reports directly to the Principal-in-Charge of ' the Hazardous Waste Division and Program Manager for the New York State Superfund Standby Contract. 1I I I I •RAP I094.HIV I I u' A I 'o I ui I I • I I I I I I I I 1 I I I I 5.0 REPORTING REQUIREMENTS/FORMAT 5.1 Reporting Requirements ' Subsequent to sample collection and analysis, a Part 360 Landfill Closure Investigation Report will be prepared. The report will describe the purpose of the Closure Investigation and field activities, provide a geologic and hydrogeologic characterization of the landfill site, and present supplement baseline groundwater quality conditions. In addition, the report will provide the results of the explosive gas, surface leachate and vector surveys. Data from this report will be used to develop the Post-Closure Monitoring Program and Closure Plan for the Southold Landfill. 5.2 Reporting Format This Closure Investigation Report will have a title page and table of contents, and six sections plus appendices. I The following is a brief summary of each section and its intended contents. I Executive Summary - Brief description of the investigation, findings and recommendations. Introduction and Purpose - A description of the need and goal of the investigation. Site Background and History - A description of the site background, including past and current operations and history, including previous investigations. ' Scope of Work - A description of the field program, including sampling locations, sampling and analytical procedures (groundwater), and surface leachate, explosive gas and vector survey procedures and data validation. Site Assessment - A description of site topography and surface geology, and local land use characteristics; a detailed discussion of site hydrology and geology, and results of the geophysical survey and environmental samples obtained as part of previous investigations; *1314/S0315502(R01) 5-1 ' investigations; and an assessment of the environmental conditions of the site/analytical results in comparison to standards and guidelines. This section will also provide analytical calculations, maps, flow nets, cross sections, interpretations and conclusions. It will also include a description of regional geology and topography, groundwater hydrologic features, sensitive receptors, and assessment of hydrogeologic conditions in comparison to Part 360 requirements. This section will also provide discussion regarding the explosive gas monitoring, surface leachate survey and the vector survey. Recommendations - Recommendations will be provided for post-closure monitoring (frequency, analyses and reporting) as part of the Post-Closure Monitoring Plan for the landfill, as well as recommendations for a Contingency Plan and potential remediation, if required. I 461314/S0315502(R01) 5-2 1 I n v I a 1 I x a 1 1 • I I I I I I I I 1 1 I I I I I I I IPART 360 AND PHASE II HYDROGEOLOGIC INVESTIGATION REPORT I I I SOUTHOLD LANDFILL I I PREPARED FOR U TOWN OF SOUTHOLD SUFFOLK COUNTY,NEW YORK I I IPREPARED BY I DVIRKA AND BARTILUCCI CONSULTING ENGINEERS SYOSSET,NEW YORK 111 I I I S 14660 I I TABLE OF CONTENTS ISection Title Page 1.0 SUMMARY 1-1 I2.0 PURPOSE 2-1 3.0 SCOPE OF WORK 3-1 I3.1 General Investigation Procedures 3-1 3.1.1 Health and Safety Program 3-1 3.1.2 Quality Assurance/Quality Control Program 3-2 I 3.1.3 Data Validation 3-2 3.1.4 Air Monitoring 3-2 3.1.5 Decontamination 3-3 I 3.2 Subsurface Investigation 3-4 3.2.1 Soil Gas Survey 3-4 3.2.2 Geophysical Program 3-4 I 3.2.3 Monitoring Well Program 3-6 3.2.3.1 Monitoring Well Locations 3-6 3.2.3.2 Monitoring Well Depths 3-9 3.2.3.3 Monitoring Well Construction and Installation 3-10 I 3.2.3.4 Monitoring Well Development 3-11 3.2.3.5 Borehole Abandonment 3-13 3.2.3.6 Borehole and Monitoring Well Logging 3-13 I 3.2.3.7 Groundwater Level Measurements 3-13 3.2.4 Selection of Sampling Locations 3-14 3.2.5 Surveying 3-15 3.2.6 Analytical Procedures 3-15 I3.2.7 Sampling Procedures 3-23 3.2.7.1 Subsurface Soil (Split Spoon) 3-23 3.2.7.2 Groundwater 3-23 1 4.0 SITE ASSESSMENT 4-1 I 4.1 Background and History 4-1 4.1.1 Site Location and Background Information 4-1 4.1.2 Site History and Previous Investigations 4-4 4.1.3 Site Reconnaissance 4-6 I 4.1.4 Literature Search 4-6 4.1.5 Water Well Survey 4-6 4.2 Geology 4-10 I 4.2.1 Regional Geology 4-10 4.2.2 Local Geology 4-15 4.2.2.1 Soils 4-20 I 4.2.3 Site Geology 4-21 4.2.3.1 Soil Gas Survey Results 4-23 4.2.3.2 Geophysical Survey Results 4-27 4.2.3.3 Site Topography 4-27 I 4.3 Groundwater Hydrogeology 4-27 4.3.1 Regional Hydrogeology 4-27 4.3.2 Local Hydrogeology 4-28 I IS1466G i I I TABLE OF CONTENTS Section Tide Page I4.3.3 Site Hydrogeology 4-31 4.3.3.1 Permeability 4-31 I 4.3.3.2 Groundwater Flow Patterns 4-35 4.3.3.2.1 Shallow Water Table 4-35 4.3.3.2.2 Deep Groundwater 4-35 4.4 Surface Water 4-40 I 4.5 Sampling Program Results 4-40 4.5.1 Introduction 4-40 4.5.2 Data Validation Results 4-40 I 4.5.3 Soil Sampling 4-40 4.5.3.1 Organic Sampling Results 4-40 4.5.3.2 Inorganic Sampling Results 4-44 I 4.5.4 Groundwater Sampling 4-51 4.5.4.1 Organic Sampling Results 4-51 4.5.4.2 Inorganic Sampling Results 4-69 4.5.4.3 Leachate Parameter Sampling Results 4-76 I5.0 CONCLUSIONS 5-1 I 6.0 RECOMMENDATIONS 6-1 I Appendices APPENDIX A Field Forms IAPPENDIX B Data Validation Report APPENDIX C Soil Gas Survey Results IAPPENDIX D Geophysical Report(Vol. II) APPENDIX E Well Construction Diagrams (Vol. II) IAPPENDIX F Boring Logs (Vol. II) IAPPENDIX G Previous Investigation Results (Vol. II) APPENDIX H Aerial Photographs (Vol. II) IAPPENDIX I Well Completion/Construction Logs - Wells in Vicinity of Landfill (Vol. II) APPENDIX J Boring Logs -Wells in Vicinity of Landfill (Vol. II) IAPPENDIX K Slug Test Results (Vol. II) I I 514660 it I ILIST OF FIGURES ' Number Title Page 1-1 Site Location Map 1-2 1-2 Site Plan 1-3 I3-1 Soil Gas Monitoring Locations 3-5 3-2 Monitoring Well Cluster Locations 3-7 I3-3 Plan for Construction of Monitoring Wells 3-12 4-1 Zoning Map 4-2 4-2 Landfill Operations Map 4-3 I 4-3 Previous Groundwater, Water Supply and Soil Sampling Locations 4-7 4-4 Monitoring Wells Located in Vicinity of Landfill 4-8 4-5 Generalized Isometric Geologic Cross Section of the Southold I Peninsula 4-12 4-6 Longitudinal Geologic Cross Section of North Fork 4-14 4-7 Cross Section Locations 4-16 I 4-8 Geologic Cross Section in Vicinity of Site 4-17 4-9 Hydrogeologic Cross Section in Vicinity of Site 4-18 4-10 Hydrogeologic Cross Section Through the Landfill 4-19 4-11 Soil Map 4-22 I 4-12 Location of Landfill Site Cross Sections 4-24 4-13 Cross Section A-A' 4-25 4-14 Cross Section B-B' 4-26 I 4-15 Regional Water Table Contour Map 4-29 4-16 Groundwater Flow Patterns in Vicinity of Site 4-30 4-17 Groundwater Flow Direction in Vicinity of Site 4-32 4-18 Special Groundwater Protection Areas in the Town of Southold 4-33 I 4-19 Water Table Contour Map 4-37 4-20 Potentiometric Surface Map 4-38 4-21 3-D Clay Surface Elevation Map 4-41 I 4-22 Organic Compounds Exceeding Class GA Groundwater Standards in Groundwater 4-68 4-23 Conductivity Logs and Screen Intervals 4-72 I 4-24 Inorganic Constituents Exceeding Class GA Groundwater Standards/ Guidelines in Groundwater 4-75 1 I I I I IS14660 iii I 1 LIST OF TABLES Number Title Page I3-1 Description of Monitoring Wells 3-8 3-2 Parameters and Detection Limits of Volatile Organic Compounds I Methods 8240, 601/602 3-16 3-3 Parameters and Detection Limits of Semivolatile Organic Compounds Methods 8270, 601/602 3-17 3-4 Parameters and Detection Limits of Pesticides/PCBs 3-19 I3-5 Parameters and Detection Limits of Inorganic Constituents Method 200.7 3-20 3-6 EP Toxicity -Parameters and Detection Limits 3-21 I 3-7 Leachate Parameters and Detection Limits 3-22 3-8 Monitoring Parameters -Method of Analysis, Preservation and Holding Times 3-24 I 3-9 Leachate Parameters -Method of Analysis, Preservation and Holding Times 3-32 4-1 Well Construction Data 4-9 1 4-2 Geologic and Hydrogeologic Units in the Town of Southold 4-13 4-3 Slug Test Results 4-34 4-4 Groundwater Elevations -July 22, 1991 4-36 I 4-5 Vertical Hydraulic Gradients at Each Well Cluster 4-39 4-6 Soil Sampling -Volatile Organics 4-42 4-7 Soil Sampling-Method 601/602- Volatile Organics 4-43 I 4-8 Soil Sampling -Semivolatile Organics 4-45 4-9 Soil Sampling -Pesticides/PCBs 4-47 4-10 Soil Sampling -Inorganic Constituents 4-48 4-11 Results of Organic Analyses from USEPA Soil Sampling 4-49 I 4-12 Results of Inorganic Analyses from USEPA Soil Sampling 4-50 4-13 Groundwater Sampling - Volatile Organics 4-52 4-14 Groundwater Sampling - Method 601/602 -Volatile Organics 4-54 I 4-15 Groundwater Sampling- Semivolatile Organics 4-57 4-16 Groundwater Sampling - Pesticides/PCBs 4-65 4-17 Organic Compounds Detected in Groundwater - Part 360 and Phase II I Investigation and USEPA Site Inspection Results 4-67 4-18 Groundwater Sampling - Inorganic Constituents 4-70 4-19 Metals Exceeding Standards/Guidelines in Groundwater- Part 360 and Phase II Investigation and USEPA Site Inspection Results 4-74 1 6-1 Baseline and Routine Parameters to be Analyzed 6-2 6-2 Compounds/Analytes Detected Above NYSDEC Class GA Standards/ IGuidelines and/or NYSDOH Drinking Water Standards 6-5 I I I S 1466c iv I I I CD 2. I 58 I I I I I I I I I I I I I I I 1 1.0 SUMMARY IThe Town of Southold operates a municipal solid waste landfill for the disposal of approximately 150 tons per day (winter months) to 300 tons per day (summer months) of I municipal waste. The existing Southold landfill comprises approximately 45 acres (excluding the 17 acres on Town property and north of the landfill area which was previously used as a borrow area for landfill cover material). The landfill site is situated between Oregon Road and North of IMiddle Road (County Road 48) to the north and south, respectively, and Cox Lane and Depot Lane to the east and west, respectively, in Cutchogue, Suffolk County, New York. A site location Imap is shown in Figure 1-1. A site plan is presented in Figure 1-2. IThe Town of Southold plans to close the existing Southold (Cutchogue) landfill and construct a new landfill in the future. In order to implement these actions, the New York State I Department of Environmental Conservation (NYSDEC) required that a hydrogeologic investigation be conducted as part of a Part 360 landfill permit application for both closure and construction. The purpose of this Part 360 Hydrogeologic Investigation as defined in the INYSDEC, Division of Solid Waste Regulations (6NYCRR Part 360), is to define the site geology and hydrogeology, and groundwater and surface water (if present) flow at the site, and to establish Ian environmental monitoring system capable of detecting a contaminant release from the landfill which will fonn the basis for facility design and a remedial contingency plan. The objective of this Part 360 investigation, as requested bythe Town of Southold, is to J g q I obtain additional information in the vicinity of the site to document the nature and extent of contamination (if present) caused by possible releases from the landfill. Specifically, the investigation is to determine the presence of chemical compounds specified on the New York IState Target Compound List (+30) in samples obtained from soil, groundwater and leachate (if present) in the area of the landfill, as well as landfill leachate indicator parameters in groundwater Iand leachate (if present). IIn addition, this study is intended to clarify site-specific hydrogeologic conditions, obtain background (baseline) groundwater quality data upgradient and downgradient of the landfill prior I to closure and construction, and relate this data to regional and local hydrogeologic patterns. This investigation was conducted in accordance with a Work Plan approved by NYSDEC. I 1 IS12030 1-1 7 isv,V , • ''• 8 / %�Q` \� \\ 11 Duck Pond^� .1,..„ a*as \/ \ NEW YORK P int �a-.a \ V 0° A \ ��O I / a as \ GF i� �-w- a'a � /\'I� \ .7/:*-:: ° N. QUADRANGLE LOCATION . -41.,L--' �� qtr �` \ V �aa�,CN • 56 SOUTHOLD, yh ,/ • G \ \ mai LANDFILL ' �. / .% \ \� \lam \ \° / ��< -4,..,`\ ,</.. ;• O�� � ..0.. Cvs �' 1 1 sow)O• :,...„..„...,4,„:„.„,..:::, 4 . _ ,-, } c 5 L-''.• D5•'�3 ? Cu t,Choy�ue$ta `(730 \ :.:EC/1 \ \ Q /-f J tea. ��� �� BM �� • 1, Sacred earl\' I• \. Ja \ .. //. \j \•It ti <'°o oma\ /'\\ ctqc110 'e u /� \ \ `. \) ( \� . Sc h,'� . q `Act \,, ...,1 ) \ • • 7---\-___°('''S 2; .--k N 3---, k /1' ,---, :7/4: 4, `kto `o\Jam' + ' 0. ' ; \ 4, N.,. ,, 4_its. .L._.--; \, ..•'7%. JV. Zi.. \ 0/ -V.' ,? / ////: . • s' ...'• .°.\..,) '.' k i' '\,>• ' ' L ')---' )'? ) •• ••1 ? ' ..... -- C (.. 7. ''')-)---' '•. I ° —�\\� �•. i •>_ 3 North For '•t �� i \ \. . '�• � �y' _\, 70 ) 1 Oot entry Club j `� BM ` �,• �\ _ ,, A / 4 I� • u \ , . . 25 '` n w 1 ° I ta 1 r v F�! \CJ ion=x..15 ( .. �1 ' ;- 1 SCALE IN FEET I 0 1000 2000 SOURCE: USGS, MATTITUCK HILLS & SOUTHOLD QUADRANGLES .. � ...�� TOWN OF SOUTHOLD ISOUTHOLD DvIrka LANDFILL SITE LOCATION MAP b 1 FIGURE I-I ❑ o❑ �] p Q 0 l JIB \-]0 O o ` C]o\o� oqE-�oN I R p p ❑ o `1\ 0 \1\\ 0 \1 \\ \\ \\\ Q . \\\ ) \ \\,0 • \ \\ \\ \ \ o \ 1 '�\\ \... \ \\ I / \ a i \\ -- ,-----;,/ \\\\,\ , , i `� \ � \\ /iXI TINS AREA o ii' $11/31 -� '�'sSO \ \ 0 __ II � � _— � I \ � �� � // -____ i /o , -, \ \ /_,'-I 1 — J \� \ \ i' I // \ 11 \I o LAlift TSN A OVERHEAD -___�' \ -- -- ( ELECTRIC ) \ 2/1 \ -1 '-/') LINES SDRUM TAGING �/ \� %/ --- \ _ MIAs IL AREA \ I / ---`— \ \\ o \ STORAGE 7 APPROXIMATE ^� lie ,� LOCATION OF i (^ ------r\ \ ' '''�: ' , DECONTAMINATION I ' ` \ co L�� �-_ PAD \\ , % \\\ \ %- CENTERTION r o - APPROXIMATE PAI LOCATION OF 9t761l7 \ \\'`p \\� •i s7AT10N O •TRAILER �; \ i �\ \ \ � \' \ A sTORA4E \ p v GARAdE © Ra -\ - Ybo\\ % O , o�Nt� \ 4.E o Exa'S����pp suso�o \�\ ON LANDFILL SITE \\ ,i \\ —4-4-4— EXISTING FENCE LINE O'1 \\ \\ 8-6l7d1• EXISTING GROUND WATER \\ MONR!lRMNI WELL \\ N°111" � SCALE IN FEET \ O PO SOO SOO TOWN OF SOUTHOLD SOUTHOLD LANDFILL 1 IS !VirandeFIGURE 1-2 I I Under the New York State Superfund Program, a Phase II Investigation at a potential inactive hazardous waste site may be required by NYSDEC based on the findings of a Phase I I study, or from other information or determinations arising from within the Department, or from requests from other agencies or governmental entities, such as the Town of Southold, subject to the Department's evaluation. Since the objectives of both the Part 360 Hydrogeologic Investigation and Phase II IInvestigation are similar, and since the Southold landfill is a Class 2a site (potential hazardous waste site) which will need to be addressed as required by Part 360 prior to future use of the site or Iland adjacent to the site, the purpose of this document is to provide a report that will jointly address the regulatory requirements of both the Solid Waste Management Facility/landfill and New York State Superfund programs. The hydrogeologic investigation consisted of a soil gas survey, installation of 14 new Imonitoring wells at 7 well cluster locations, subsurface soil sampling and logging, groundwater sample collection, downhole geophysical logging and permeability testing. The locations of the Isite trailer, decontamination pad and drum staging area used during this investigation are shown in Figure 1-2. Split spoon samples collected during borehole construction were screened in the field I for the presence of volatile organic compounds (VOCs). A a result, one subsurface soil sample was collected during the investigation for laboratory analysis. All samples were analyzed for TCL+30 parameters utilizing EPA SW846 Methods 601/602, 8240, 8270 and 8080 for TCL organics and NYSDEC 1989 Analytical Services Protocol (ASP) Ifor TAL inorganics. These parameters include volatile and semivolatile organic compounds, base neutrals, acid extractables,pesticides/PCBs, metals and cyanide. I As a result of groundwater sample data collected during the Part 360 and Phase II Iinvestigation, it appears, based primarily on leachate indicators and a few metals, that there is a weak, limited plume emanating from the Southold landfill. The TCL list parameters exceeding U either NYSDEC Class GA groundwater standards/guidelines or New York State Department of Health (NYSDOH) drinking water standards were 1,2-dichloropropene and 1,2-dichloroethane in low concentrations, and iron, magnesium, manganese and sodium in concentrations not Isubstantially above ambient conditions. The leachate parameters, ammonia, nitrate, and phenols were also found at levels exceeding standards, but not at significant levels. All of these Iparameters were found at levels exceeding standards at upgradient well locations except for 1,2-dichloroethane, which was found above standards in only two wells located just downgradient I IS12030 1-4 I of former scavenger waste lagoons. Previous private well sampling conducted off-site and downgradient of the landfill, including a recent (December 1990) site inspection by the United States Environmental Protection Agency (USEPA), show results indicative of background (upgradient) groundwater quality conditions. Based on soil samples obtained during this investigation and the recent USEPA sampling, only a few organic contaminants in low concentrations (toluene, 4-chloroanaline, aldrin and 4,4'DDE) and some inorganic contaminants at elevated levels (aluminum, barium, copper, iron and zinc) were found on-site in the former scavenger waste lagoons. However, none of the organics and relatively low concentrations of inorganics were found in the groundwater underlying and downgradient of the landfill. As a result of these findings, which found only a very limited number of contaminants which exceeded standards/guidelines in relatively low concentrations, it is recommended that the ' Southold landfill be removed from the list of potential hazardous waste sites, as a Class 2a site, and that the landfill be delisted entirely. Also, as a result of the findings of this Part 360/Phase II investigation, it is recommended that sample analysis, as part of the long-term monitoring program for the landfill as part of closure, be limited to the select list of parameters found to exceed groundwater standards/guidelines during this investigation, and that the sample frequency be on an annual basis. I 1 I I I S1203G 1-5 1 1 � 0 1 0 0 I 1 2.0 PURPOSE IThe purpose of this investigation, which was conducted in accordance with the Part 360 and Phase II Hydrogeologic Investigation Work Plan approved by the New York State Department of I Environmental Conservation (NYSDEC), was to obtain detailed hydrogeologic information at the Southold landfill located in the Town of Southold, Long Island,New York, as well as to determine if the landfill is a source of groundwater contamination. The Part 360 portion of the investigation Iwas to characterize subsurface soil and groundwater conditions for the purposes of closure of the existing landfill and development of a new landfill, while the Phase H part of the investigation was to determine the presence of chemical compounds specified on the New York State Target Compound List, as well as leachate parameters. The results of this investigation were reviewed I and compared to information obtained from previous investigations in the area to determine what impact, if any, landfill leachate has had on groundwater quality in the vicinity of the Southold I landfill. Based on this review, a long-term monitoring program was developed in order to meet the Part 360 requirements for landfill closure and development of a new landfill and recommendations provided to classify the site. I I I I I I I I I 51468G 2-1 I 1 u) 1 a I W II I I I I I I I I I I I I I I3.0 SCOPE OF WORK 3.1 General Investigation Procedures 3.1.1 Health and Safety Program The Health and Safety Plan, as defined in the Work Plan for the Southold landfill site and approved by NYSDEC, was implemented during the Part 360 and Phase II field investigation. Since the principal chemical hazards of concern consisted of volatile organic chemicals (VOCs), and since the potential hazards were restricted to specific work areas where drilling and sampling activities occurred, routine monitoring was required only at the drilling/sampling sites. All monitoring and surveillance equipment (Century OVA, Photovac MicroTip, Miniram Particulate Dust Monitor, and EXOTOX portable combustible gas/oxygen detector) was operated, maintained and calibrated each work day in accordance with the manufacturer's manual and Dvirka & Bartilucci (D&B) Consulting Engineer's Quality Assurance (QA) procedures. Organic vapor monitoring and particulate monitoring was undertaken prior to and following sampling at the site, as well as throughout the soil gas survey and drilling operations. 111 During the field investigation, total VOC vapors exceeded background levels (less than 1 ' ppm) in the breathing zone at two locations. During drilling of wells MW-3S and MW-3D, levels in the area were encountered in excess of 50 ppm as measured by the OVA. Background readings as measured by the MicroTip remained at "zero" throughout the drilling. Since this portion of the site is a methane gas venting area, and the MicroTip is not capable of detecting methane, it was 1 determined that these elevated VOC levels were due to methane. Data obtained during the drilling program showed methane levels lower in the borehole and soil samples than in the ambient air. Since methane is a simple asphyxiant and ambient oxygen levels were normal, level C personnel ' protection measures were not implemented while drilling at this location. Level C protection was used during the drilling of abandoned soil boring MW-6SA due to elevated OVA and slightly elevated MicroTip readings, both in and immediately around the ' borehole while drilling. Methane was encountered at abandoned soil borings MW-6SA, MW-6SB and MW-6SC at concentrations of 100% of the Lower Explosive Limit (LEL) These borings were eventually sealed with bentonite grout and abandoned. I ' S1205G 3-1 I 3.1.2 Quality Assurance/Quality Control Program IThe Quality Assurance/Quality Control (QA/QC) Plan, as defined in the Work Plan for the Southold landfill site and approved by NYSDEC, was implemented during the Part 360 and Phase II field investigation. All environmental samples collected as part of the field investigation were obtained in ' accordance with the decontamination procedures outlined in Section 3.1.5 of this report and the sampling procedures outlined in Section 5.7 of the QA/QC Plan contained in the Work Plan. Field management procedures included preparation of Sample Information Record Forms, Chain of Custody Record Forms, Daily Field Activity Reports and maintenance of a Daily Field Log Book. These records are contained in Appendix A of this report. QA/QC checks, including utilization of trip blanks, field blanks, matrix spikes, matrix spike duplicates,laboratory method blanks and spike blanks,were performed as described in the QA/QC Plan and in conformance with the NYSDEC September 1989 Analytical Services Protocol (ASP). The analytical laboratory which was utilized as part of this investigation (NYTest Environmental, Inc.) is New York State Department of Health approved (Environmental Laboratory Approval Program [FLAP]) and approved by NYSDEC to meet the requirements of the 1989 ASP. 3.1.3 Data Validation All Part 360 and Phase II investigation analytical sample data was validated to ensure laboratory compliance with the 1989 NYSDEC ASP. In general, all data was found to be within ' NYSDEC requirements and included evaluation with regard to holding times. A more detailed discussion of data validation is contained in Section 4.5.2. The data validation report prepared as part of this investigation is provided in Appendix B. 3.1.4 Air Monitoring Air monitoring with a portable organic vapor analyzer, either a Century OVA, and/or Photovac MicroTip, was conducted at each sample location, as well as throughout the soil gas survey, and the well drilling and installation program. In addition, monitoring with an EXOTOX ' portable combustible gas/oxygen detector was performed during borehole construction at all monitoring well locations for detection of methane in the breathing zone and within the borehole S 12o5G 3-2 1 and elevated dust levels, respectively. No significant levels of methane gas were detected within the borehole at six of the seven of the monitoring well locations. As previously discussed, elevated levels of methane were detected only at well location MW-6 during the drilling program. At no time during sampling/drilling activities did total volatile organic chemical vapor concentrations, as measured by the MicroTip, exceed 1 ppm in the breathing zone, nor did dust levels exceed 0.01 ug/in3. LELs of 100 percent were encountered during the soil gas survey but were limited to areas underlain by fill. Elevated MicroTip readings were also encountered in soil gas in these areas, but breathing zone readings remained at background throughout the soil gas investigation. 3.1.5 Decontamination Prior to sample collection, all reusable field sampling equipment was decontaminated according to NYSDEC approved protocol as follows and in the following sequence: ' 1. Equipment was washed thoroughly with nonresidual detergent (alconox) and tap water using a brush to remove any particulate matter or surface film. 2. Rinsed thoroughly with tap water. 3. Rinsed thoroughly with distilled water. 4. Rinsed with hexane (pesticide grade) or methanol (pesticide grade) and air dried. 5. Rinsed thoroughly with distilled water and air dried. 6. Wrapped completely with aluminum foil (shiny side out) to prevent contamination during storage and/or transport to or in the field. 7. Rinsed thoroughly with tap water in the field as soon as possible after use. Submersible pumps, used to develop the monitoring wells, were decontaminated by steam cleaning or alconox washing the external surface of the pump and placing the pump in a clean plastic bucket and pumping ten volumes of potable water through the unit, including all appurtenances. New tubing was dedicated to each well and discarded after each use. Care was taken to observe safety precautions since the pump was connected to a power source. I S 12050 3-3 1 Drilling rig and split spoon decontamination procedures were as follows: 1. Equipment was washed thoroughly with nonresidual detergent (alconox) and tap water using a brush to remove particulate material or surface film. 2. Steam cleaned at 212°F. ' Sampling and drilling equipment was decontaminated at the decor" pad located on the landfill site. Split spoon samplers were decontaminated directly over a 55-gallon drum at the drilling location. 3.2 Subsurface Investigation 3.2.1 Soil Gas Survey Individual soil gas samples were not collected as part of the investigation; however, total organic vapors were field-recorded using a flame ionization detector (Century Foxboro OVA), photoionization detector (Photovac MicroTip) and a methane meter. A soil gas survey was conducted in areas of the site where waste was known to have been disposed based upon a 100-foot grid network. The spacing between the soil gas sampling stations was reduced from a 100-foot to 50-foot grid network downgradient of former scavenger waste lagoons, waste oil storage tanks and an old automobile storage area. A total of 120 grid node/survey points were sampled during the soil gas investigation. At each grid node/survey point, a stainless steel probe, with a removable inner rod, was driven into the ground to a depth of approximately 3-1/2 feet. The inner metal rod was removed and immediately replaced with a stainless steel cap covering the top of the steel probe. After allowing gas to collect within the probe for a period of approximately five minutes, the stainless steel cap was removed and total organic volatile organic compound (TVOC) readings were taken. Soil gas survey locations are shown on Figure 3-1. The results of the soil gas survey are presented in Appendix C and discussed in Section 4.2.3.1 of this report. 3.2.2 Geophysical Program A downhole geophysical survey was performed on all of the deep monitoring wells installed as part of this investigation. The logging was performed by Hager-Richter Geoscience, Inc. with oversight provided by D&B personnel. Natural gamma ray and conductivity (EM39) logs were I S 1205 3-4 /7 I 1 )r. .‘-. ! ir'''' ."...''''\A *1./ k ....Ily Y i ,, N 23+00 \_______ i .___ 4017 N 24+00 II 0 N 21+00 1 o Y. N 20+00 I ------ a � 1 FURN�A MNO \\ N1ir , _ ,...1 0+i m / I 01 N17+, I / IED I //ill I , , 17+00 I I // I R N1 ) IIil 47 pip N 14+00r-- III . \ • N 13+00 1 / N 12+00 y• • /• ‘ \ ACME • C W1DF1LL . . , I ���7 • 1 AREA N 11+00 I (((5y5y5y• /7 I I \ • ❑ ^\ N 10+00 ' . p / +\ \ . t ::: III • •• IH! A,i 1~ Z -� 21 1,___ _. ONED ••••••,„••••• ::: '.jI' 11 111 ..,.••••'" '.--7 j e- N 3+00 I■ I OVERHEAD �� I_ .rn-.11 II111E- I UNFS N 4+00 ���� N 3+00 ' 11111' MOVIMIll - 1 N 2+00 III Mai=II WWM� N 1+00 I lifillrillit711 0 III AVON.. N 0+00 if I I I I COU.CCNON STORAGE 01L CENTER SfORME �� L� a° SWOWING QA OAPAOE EnC0 I I II IPb ❑ MON II II I I c_______L j 1__________L-___ ----I-4Q 'il:i'--I-jo"."................"'"lu."'"':':' (.0"Ty -- 44 ° CI ________i_u \........ " cn ED NaefN ------n 0 ' II LEGEND I I DESIGNATION DESCRIPTION • SOIL GAS MONITORING LOCATION DIRECTORY: C:\1027 0 400 800 FILE NAME: SOILGAS NMI MI IMINE11111111111111.1 DATE: SEPT. 1991 MINI 10011 SCALE: 1=1 DESIGNER: S.P.B. TOWN OF SOUTHOLD Dvirka CUTCHOGUE LANDFILL Qç and tiIucci SOIL GAS MONITORING LOCATIONS CONSULTING ENGINEERS FIGURE 3-1 J= - ' obtained for each well and incorporated into a report. The Hager-Richter August 1991 report is included in Appendix D. The results of the geophysical survey are discussed in Section 4.2.3.2 of this report. 3.2.3 Monitoring Well Program The primary purpose of the installation of monitoring wells at the landfill site was to obtain ' and evaluate subsurface data. Subsurface data includes groundwater quality and soil information which will assist in establishing current/background conditions, identifying in greater detail the geology and hydrogeology of the site, and determining if there has been a release of contamination, as well as to support a closure plan and landfill construction permit application, and fulfill the requirements of a Phase II Investigation. As part of this investigation, 14 new monitoring wells were constructed at seven locations and grouped as pairs. ' Although there are several existing monitoring wells on the landfill site, it is not known whether these wells were constructed in conformance with current NYSDEC policy. The NYSDEC requirements for Part 360 and Phase II investigations require that PVC-cased wells be constructed without adhesives and contain seals above the well screen. In addition, there was the Ineed for additional wells downgradient from the landfill. Therefore, new monitoring wells were constructed in accordance with NYSDEC requirements; however, the existing wells were used to supplement information obtained from the new wells. 3.2.3.1 - Monitoring Well Locations This section of the report provides a brief discussion of the rationale for the selection of the ' monitoring well locations. One well cluster (MW-1) was placed upgradient of the landfill, four well clusters were installed immediately downgradient of the existing landfill (MW-2, MW-3, MW-6 and MW-7), and two well clusters were installed downgradient of the planned landfill area (MW-4 and MW-5). The well locations and sampling intervals are shown in Figure 3-2, and the depths are summarized in Table 3-1. The rationale for the well cluster locations was based on the Part 360 requirements for a ' hydrogeologic investigation in preparation of a landfill permit application, requirements for a Phase II Investigation and data obtained from prior investigations. 1 S 1205 3-6 11 D L] ` � o 0 if �1� _ o 0 Iiii oI , �ln 1 - , I I I ` 1 � 0R, ' I DAU \`�`, ti �_ _ R - viiir I \1\\ \\ 0 \\ \\ ./ \\ \\ \\ Q • \\ \� i MW-4 \ \\ \ \\ (9 "\ ; c-1 \\ MW-5\ o\\\\ V \�1 , i \, ED i \ ---. _-,\ ' \\\ ' \ \ \,\ EXISTING\t NING AREA A \;\\ \ \\\ it ) ) Mw-2 \ \\ ► ' -'t \I I/ \) \ ,, Soo. \ `l- S-6883'1,7 �, �+ - �\ %id / � \ ` MW-30 - _ -88918 \ \ 0 Ll Lb rte 1 '----- / A \ ' \ \ n O \ o \ MW-6.1 1 O�.. I 1 Nl ,} ` _ _ _ \ II ZW iI _ / -__ - \\ \ � I Of..". ; I 1 II cm \ \\� i i \,� \ 11 —Ir ZE 13TING ��\ ` b / LAND ILL AREA OVERHEAD -- 1 0 1 1 \ CC l"1 ( /, 1311) ELECTRIC � LINES MW-7 0� j \ \ ` - \ WASTE OIL \ / - \� \ STORAGE \ 1D - 1.. 7, \ \ - y �— 1 / I, `' ` ---" . ' ‘� 1' �I 1 \\ . / CENTERTION �/ �` �- ( i \', `` •g- 'a a WEIGHING /// \ \\`n I \.\9.. �. ( STATION• -N`� \\ •\ •J el STORAGE ; ', O U 1 \\ oA0 A G GARAGE O: �-`- \\ R Y C3 1\\'\\ CO', :---",> -,. LEGEND �- MW-t\ \ / STING 1----.;'.`;..=`''.`� ONI LANDFILLI SI EO \ o C--- \�\ —'--'--- EXISTING FENCE LINE \ EXISTING GROUND WATER /,, \\ 5-89781• MONITORING WELL GROUND WATER OPO ;`\ MW-1 •• MONITORING WELL CLUSTER SCALE IN FEET ,.- NoRTN ,\ 0 100 !00 SOO \ TOWN OF SOUTHOLD SOUTHOLD LANDFILL dbarid MONITORING WELL CLUSTER LOCATIONS eartNuod FIGURE 3-2 CONSULTw ENGINEERS I ITable 3-1 DESCRIPTION OF MONITORING WELLS IDepth Groundwater Well No. Description (feet)* Sampling Point Soil Sampling IMW-1S Shallow (glacial) 52 Water Table Continuous MW-1D Deep (glacial) 152 Clay Interface Every 5' IMW-2S Shallow (glacial) 27 Water Table Every 5' MW-2D Deep (glacial) 85 Clay Interface Every 5' starting at 32' IMW-3S Shallow (glacial) 55 Water Table Every 5' MW-3D Deep (glacial) 125 Clay Interface Every 5' Istarting at 60' MW-4S Shallow (glacial) 73 Water Table Every 5' I starting at 45' MW-4D Deep (glacial) 150 Clay Interface Every 5' starting at 75' I MW-5S Shallow (glacial) 77 Water Table Every 5' starting at 56' MW-5D Deep (glacial) 136 Clay Interface Every 5' IIstarting at 80' MW-6S Shallow(glacial) 56 Water Table Continuous to 42' MW-6D Deep (glacial) 145 Clay Interface Every 5' Istarting at 45' MW-7S Shallow (glacial) 50 Water Table Every 5' I MW-7D Deep (glacial) 125 Clay Interface Every 5' starting at 55' I I I I I *Approximate depth below ground surface. I Is 12056 3-8 I Well cluster MW-1 (wells MW-1S and MW-1D) is upgradient of the existing landfill and is located in an area where groundwater quality is expected to be representative of ambient conditions in the vicinity of the site. This well cluster is also important in locating the divide between groundwater that flows north-northwest beneath the landfill and the special groundwater protection zone that lies southwest of the facility. Monitoring well clusters MW-2 (wells MW-2S and MW-2D), MW-3 (wells MW-3S and MW-3D) and MW-7 (wells MW-7S and MW-7D) are located approximately 500 feet apart downgradient along the northern and eastern boundaries of the existing landfill. Existing monitoring wells (S-68916 and S-68831) (see Figure 3-1) may be used to supplement these new wells maintaining a 500-foot spacing between well locations. Monitoring well cluster MW-7 is also located downgradient of the existing waste oil storage tanks. Monitoring well cluster MW-6 is located approximately 300 feet upgradient (south-southeast) of existing monitoring well S-68916 and immediately downgradient of the former scavenger waste lagoons and the old ' automobile storage area along the western boundary of the existing landfill. These monitoring wells will also serve as the upgradient wells for the planned landfill. Monitoring well clusters MW-4 (wells MW-4S and MW-4D) and MW-5 (wells MW-5S and MW-5D) are situated approximately 500 feet apart downgradient (north-northwest) of the planned landfill area. With regard to fulfilling the requirements of a Phase II Investigation, the monitoring wells described above should more than meet the intent of such an investigation which typically requires the installation of four well clusters: one upgradient of the site and three downgradient. In addition, the 14 new monitoring wells installed as part of this investigation should also satisfy the requirements for closure of the existing landfill and construction of a new landfill under the Part 360 regulations. 3.2.3.2 -Monitoring Well Depths Each monitoring well cluster consists of two individual monitoring wells screened at different depths at the same location. The purpose of the monitoring well clusters in this investigation is to define the three-dimensional flow system within the water-bearing unit of the critical stratigraphic section, which in the area of the Southold landfill is the upper glacial aquifer (above the North Fork glacial clay layer), as well as the quality of groundwater in this formation in the immediate area of the landfill. I S 12056 3-9 I IThe shallow/water table wells were installed at each cluster location at an average depth of approximately 55 feet below ground surface in the surficial glacial deposits. The water table at the Isite lies an average of approximately 40-45 feet below ground surface. The deep glacial aquifer wells were installed at each cluster location at an average depth of Iapproximately 130 feet below ground surface in the Pleistocene glacial deposits, and were placed at the lithologic interface with the underlying clay layer in the area of the landfill. These borings Iwere advanced to the North Fork glacial clay to demonstrate the continuity of the clay. Presence of the clay was established upon initial contact with one additional split spoon sample advanced Iinto the clay. 3.2.3.3 -Monitoring Well Construction and Installation Six of the seven shallow wells were constructed using the hollow stem auger method. At IIthe six clusters, borings were advanced for the shallow wells to a depth approximately 15 feet into the water table. Sampling at MW-4S and MW-5S began at approximately 50 feet due to the fact Ithat they were both constructed on the clifftop (northern side) of the mining area of the landfill. Borings were advanced to a depth equal to the elevation of the bottom of the mined pit prior to I sampling. Since the stratigraphy of the cliff side was exposed to visible observation, no geologic logging was considered necessary in the upper visible layers at MW-4 and MW-5. This procedure Iwas approved by the NYSDEC on-site supervisor. Six of the seven deep wells were constructed using the cable tool method. These deep Iboreholes were advanced to the clay layer. The clay layer contact was established by split spoon sampling approximately every five feet with more frequent sampling, as necessary. I Monitoring well cluster MW-6 was constructed using the mud rotary method. The change I in drilling method was required because of excessive levels of methane gas encountered during the drilling of soil borings MW-6SA, MW-6SB and MW-6SC. The levels of methane exceeded 100% I of the Lower Explosive Limit (LEL) at these soil boring locations. Because of these explosive levels, mud was used to suppress the methane to safe levels. I I I Is1205G 3-10 I IWell construction consisted of a 2-inch diameter stainless steel screen and threaded, flush joint PVC casing. Ten feet of stainless steel wire wrapped screens with 0.02 inch openings were I installed in each deep borehole and 20-foot screens were installed in each shallow borehole (5 feet above the water table and 15 feet below) except for MW-6S, which, in order to mitigate methane from entering the screen zone, the screen length was modified to 15 feet, most of which was Iinstalled in the saturated zone, in order to minimize the amount of screen exposed to the vadose zone. I A 2-inch diameter PVC riser extends from the top of the screen to 2-1/2 feet above ground Isurface and is contained in a steel protective casing with a locking cover, except for MW-1S and MW-1D, which were installed with flush mount protective casings. IThe annulus of the borehole in the area of the screen was sand-packed to a height of 2 feet above the screened interval with clean silica sand in conformance with Part 360 requirements. A Ifiner grained sand pack material (100% passing the No. 30 sieve and less than 2% passing the No. 200 sieve) 6 inches in thickness was placed on top of the sand pack between the sand and the Ibentonite seal. A 3-foot seal of thick PUREGOLD bentonite slurry was placed immediately above the filter material using a tremie pipe. The remaining annulus was grouted to the surface with a IPUREGOLD bentonite slurry. PUREGOLD bentonite is tested and warranteed to be free of organic and inorganic contaminants. A 4-inch diameter protective outer steel surface casing with locking cover and a surface cement pad was installed around each well casing/riser pipe. Figure 3-3 provides an illustration of Iwell construction. More detailed well construction and installation diagrams are contained in Appendix E. I 3.2.3.4 -Monitoring Well Development 1 All monitoring wells were developed using a 2-inch diameter Grundfos Redi-flo 2 I submersible pump. Surging of the wells was performed periodically by lowering and raising the pump rapidly similar to a surge block. Monitoring wells were pumped at a rate of approximately 5 gallons per minute (gpm). All wells were developed until a turbidity of 50 NTUs (nephelometric turbidity units) was Iattained. Well development was supplemented by measurement of temperature, pH and specific conductance, and continued until stabilization of these parameters was achieved. Extensive Idevelopment occurred at MW-6S and MW-6D to ensure that all excess mud was removed from the screen interval. IS 1205 3-11 I • 1 5"I.D.STEEL CAP MINIMUM 9" 1 VENTED PVC CAP 1 IHASP r 4" I.D. STEEL •r PADLOCK 2'-6" PROTECTIVE CASING rr NEAT CEMENT SLOPED ti 3'-6" p / I % A 2" I.D. SCHEDULE 40 PVC 0 THREADED FLUSH JOINT RISER I 0 CEMENT- BENTONITE GROUT I � I ,`•l --- BENTONITE SEAL '- 30" �.••! 6"- FINER GRAINED SAND SAND PACK �' ':'� , II PACK, 6" THICK, PLACED AT EXTEII PING 2 FT.ABOVE % 2-O TOP OF SAND PACK BETWEEN AND 2 BELOW WELL ;.:... - BENTONITE SEAL AND SAND I SCREEN . ;, PACK ti' . 20' x 2"STAINLESS STEEL I ;.;; SLOTTED SCREEN WITH �. BOTTOM PLUG (SHALLOW WELL)* 1 1 .. .i SIE NOTE: 10'x 2" STAINLESS STEEL SLOTTED SCREEN WITH I BOTTOM PLUG FOR DEEP WELL I I TOWN OF SOUTHOLD SOUTHOLD LANDFILL I ka PLAN FOR CONSTRUCTION and OF MONITORING WELLS FIGURE 3-3 I 1 3.2.3.5 -Borehole Abandonment All soil borings which were not completed as monitoring wells were fully sealed to prevent contaminant migration through the borehole. A total of three boreholes were abandoned during this investigation. Three borings were attempted in the vicinity of proposed monitoring well cluster MW-6 downgradient of the former scavenger waste lagoons. The first was located adjacent to the lagoon and was advanced to a depth of 29 feet. The second location was approximately 100 feet north paralleling the landfill perimeter fence and was advanced to a depth of 15 feet. The third location was adjacent to the two existing Suffolk County wells (S-68831 and S-68916), and was advanced to a depth of 20 feet. As previously discussed, all three boreholes had to be abandoned due to Lower Explosive Limits (LELs) exceeding 100% at each location. A decision was made to allow the third boring to vent over a weekend in the hope that LELs would subside to a safe level. Although LELs were found to be zero within the augers on the following ' Monday morning, turning the augers caused the LELs to climb quickly to 100%. All three locations were abandoned by grouting with PUREGOLD bentonite grout utilizing a tremie pipe as approved by the NYSDEC on-site representative. 3.2.3.6 -Borehole and Monitoring Well Logging 111 All boreholes and monitoring wells were logged and documented by a geologist. Notes were kept in both bound field books and on a Boring Log and Well Construction Log. Boring Logs are included in Appendix F and Well Construction Diagrams are provided in Appendix E. The Modified Burmeister Classification System or Unified Soil Classification System (USCS) was used to describe soil samples recovered from the borings. A Daily Field Activity Report was completed whenever there were drilling activities (or any other field activities) undertaken as part ' of this investigation. ' 3.2.3.7 - Groundwater Level Measurement Stabilized groundwater level measurements were obtained from each of the 14 wells installed as part of this investigation and all readily accessible existing wells in the vicinity of the landfill. Measurements from wells installed during this investigation were obtained prior to well purging and sample collection. The static water level was measured to the nearest one-hundredth (0.01) foot using a Hunter-Keck electronic water level indicator. Groundwater level data was used to construct groundwater contour maps to determine local flow conditions. 1 51205G 3-13 3.2.4 Selection of Sampling Locations ' Groundwater samples were obtained for chemical analysis from all 14 monitoring wells installed as part of the investigation. One subsurface soil sample was collected at monitoring well cluster MW-6 for chemical analysis. All other soil samples were collected for geologic logging ' and organic vapor screening. Monitoring well locations are shown in Figure 3-2. Subsurface Sampling ' At a minimum, 5-foot soil sampling was performed at all well cluster locations to the clay layer. At six of the seven clusters, the shallow well borings were sampled first with sampling continuing at each associated deep well boring. Exceptions to this were MW-1S, which was sampled continuously, MW-4S and MW-5S, where sampling commenced at approximately 50 feet, and MW-6D, which was sampled continuously to a depth of 42 feet and at 5-foot intervals thereafter. These samples were collected to provide detailed stratigraphic information on the landfill site. Soil samples obtained from the split spoons were observed for geologic characteristics and screened with a Century OVA and a Photovac MicroTip. As a result of this screening, one soil sample was collected from MW-6S from a depth of 11 to 13 feet. This soil sample was analyzed for Target Compound List (TCL) +30 parameters and was retained for EP Toxicity analysis if the EP Toxicity parameters were detected in significant concentrations. Selection of this soil sample for chemical analysis was made with the approval of the NYSDEC on-site representative based on ' elevated levels of total organic vapors and visual staining. ' Groundwater Sampling Each of the 14 wells installed as part of this investigation were sampled and analyzed for TCL +30 and landfill leachate indicator parameters which are described in Section 3.2.6. Prior to sampling, a minimum of four well volumes were removed or until pH, specific conductance and temperature stabilized. Wells were sampled only when the turbidity was less than 50 NTUs. ' Leachate Sampling ' Although provisions were made for the collection of up to four leachate samples, no samples were collected due to the absence of any visible leachate seeps. The absence of leachate was ' confirmed by inspections performed by NYSDEC personnel. ' s 12056 3-14 1 3.2.5 Surveying The location and elevations of all existing monitoring wells were surveyed to obtain the exact location and plotted on a map. The elevation of the ground surface and the top of the monitoring well riser pipe was accurately measured to the nearest one-hundredth (0.01) of a foot. 3.2.6 Analytical Procedures Samples collected as part of this investigation were initially analyzed for TCL+30 ' parameters utilizing USEPA Methods 601/602 and USEPA SW846 Methods 8240, 8270 and 8080 for TCL organics, and NYSDEC 1989 Analytical Services Protocol (ASP) for Target Analyte List ' (TAL) inorganics (Method 200.7) and Method 335.2 for cyanide. These parameters include: volatile and semivolatile organic compounds (base neutrals and acid extractables) pesticides and PCBs, metals and cyanide. In addition, groundwater samples from all monitoring wells were analyzed for NYSDEC ' field and leachate parameters (indicators) as specified in the NYSDEC Part 360 List of Expanded Parameters. Because there is no suspected hazardous waste disposal at the landfill, no samples were analyzed for dioxin or furans. ' Due to the different analytical requirements for a Phase II Investigation and Part 360 Hydrogeologic Investigation, analysis for volatile organic compounds required two separate methods. The Phase II Investigation requires Method 8240 to be used for volatile organics, while the Part 360 requires Method 601/602. As a result, all volatile organic samples were analyzed by both methods. Parameter lists and detection limits for Methods 8240, 601/602, 8270, 8080, 200.7 and EP ' Toxicity extraction are shown in Tables 3-2, 3-3, 3-4, 3-5 and 3-6, respectively. A list of leachate parameters and detection limits are shown in Table 3-7. It should be noted that the Expanded Parameter List includes approximately 85 organic compounds listed in Appendix 33 of Part 373-2 that are not analyzed for in TCL+30 analyses. ' However, there is provision in TCL+30 for analysis of 30 additional compounds provided that these compounds are detected in significant concentrations. TCL+30 includes analysis of compounds that coincide with the 30 highest peaks (10 volatile and 20 semivolatile), which may include some of the 85 Appendix 33 parameters not formally analyzed for in TCL+30. The extra ' S 12050 3-15 I Table 3-2 I PARAMETERS AND DETECTION LIMITS OF VOLATILE ORGANIC COMPOUNDS 1 METHODS 8240,601/602 I TCL* (Method 8240) Method 601 Method 602 (Detection (Detection (Detection Part 373-2* Parameters Limits ppb)** Limits ppb)** Limits ppb)** Appendix 33 IAcetone X (10) X Benzene X (5) X (0.2) x I Bromodichloromethane X (5) X (0.1) X Bromoform X (5) X (0.2) X Bromomethane X (10) X (1.18) X I 2-Butanone X (10) X Carbon disulfide X (5) X Carbon tetrachloride X (5) X (0.12) X Chlorobenzene X (5) X (0.25) X (0.2) X I Chloroethane X (10) X (0.52) X Chloroform X (5) X (0.05) X Chloromethane X (10) X (0.08) X I Dibromochloromethane X (5) X (0.09) X 1,1-Dichloroethane X (5) X (0.07) X 1,1-Dichloroethene X (5) X (0.13) X 1,2-Dichloroethane X (5) X (0.03) X I 1,2-Dichloroethene (total) X (5) X (0.10) X 1,2-Dichloropropane X (5) X (0.04) X Cis-1,3-Dichloropropene X (5) X (0.34) X I Trans-1,3-Dichloropropene X (5) X (0.20) X Ethylbenzene X (5) X (0.2) X 2-Hexanone X (10) X I Methylene chloride X (5) X (0.25) X 4-Methyl-2-pentanone X (10) X Styrene X (5) X 1,1,2,2-Tetrachloroethane X(5) X (0.03) X I Tetrachloroethene X (5) X (0.03) X Toluene X (5) X (0.2) X 1,1,1-Trichloroethane X (5) X (0.03) X I 1,1,2-Trichloroethane X (5) X (0.02) X Trichloroethene X (5) X (0.12) X Vinyl acetate X (5) X I Vinyl chloride X (10) X (0.18) X Xylene (total) X (5) X 2,-Chloroethyl vinyl ether X (10) X (0.13) Trichlorofluoromethane X (5) X (ND) I * Note that there are approximately 85 additional parameters (not listed in this table) that are included in the Part 373-2 Appendix 33 list of parameters that are not analyzed for in TCL (Method 8240) analyses. ** Detection limits are the same for both water and soil. I S 1205 3-16 I ITable 3-3 PARAMETERS AND DETECTION LIMITS OF SEMIVOLATILE ORGANIC COMPOUNDS IMETHODS 8270,601/602 TCL* I (Method 8270) Method Method (Detection 601 602 Limits ppb) (Detection (Detection Part 373-2* IParameters (Water.Soil) Limits ppb)** Limits ppb)** Appendix 33 Acenaphthene X (10,330) X Acenaphthylene X(10,330) X I Anthracene X (10,330) X Benzo(a)anthracene X (10,330) X Benzo(b)fluoranthene X (10,330) X I Benzo(k)fluoranthene X (10,330) X Benzoic acid X (50,1600) Benzo(g,h,i)perylene X (10,330) X I Benzo(a)pyrene X (10,330) X Benzyl alcohol X (10,330) X 4-Bromophenyl-phenylether X (10,330) X Butylbenzylphthalate X (10,330) X I 4-Chloroanaline X (10,330) X Bis(2-chloroethoxy)methane X (10,330) X Bis(2-Chloroethyl)ether X (10,330) X I Bis(2-Chloroisopropyl)ether X (10,330) 4-Chloro-3-methylphenol X (10,330) X 2-Chloronaphthalene X (10,330) X 2-Chlorophenol X (10,330) X I 4-Chlorophenyl-phenylether X(10,330) X Chrysene X (10,330) X Dibenzo(a,h)anthracene X (10,330) X I Dibenzofuran X (10,330) X Di-n-butylphthalate X (10,330) X 1,2-Dichlorobenzene X(10,330) X (0.15) X (0.4) X I 1,3-Dichlorobenzene X (10,330) X(0.32) X(0.4) X 1,4-Dichlorobenzene X (10,330) X (0.24) X (0.3) X 3,3-Dichlorobenzidine X (20,660) X 2,4-Dichlorophenol X (10,330) X I Diethylphthalate X (10,330) X 2,4-Dimethylphenol X (10,330) X Dimethylphthalate X (10,330) X I 4,6-Dinitro-2-methylphenol X (50,1600) X 2,4-Dinitrophenol X (50,1600) X 2,4-Dinitrotoluene X (10,330) X 2,6-Dinitrotoluene X (10,330) X I Bis(2-ethylhexyl)phthalate X (10,330) X Fluoranthene X (10,330) X Fluorene X (10,330) X I Hexachlorobenzene X (10,330) X Hexachlorobutadiene X (10,330) X Hexachlorocyclopentadiene X (10,330) X I Hexachloroethane X (10,330) X Indeno(1,2,3-cd)pyrene X (10,330) X Isophorone X (10,330) X S 12056 3-17 I I ITable 3-3 (continued) PARAMETERS AND DETECTION LIMITS OF SEMIVOLATILE ORGANIC COMPOUNDS I TCL* (Method 8270) I (Detection Limits ppb) Part 373-2* Parameters (Water.Soil) Appendix 33 I2-Methylnaphthalene X (10,330) X 2-Methylphenol X (10,330) X 4-Methylphenol X (10,330) X I Naphthalene X (10,330) X 2-Nitroaniline X (50,1600) X 3-Nitroaniline X (50,1600) X I 4-Nitroaniline X (50,1600) X Nitrobenzene X (10,330) X 2-Nitrophenol X (10,330) X 4-Nitrophenol X (50,1600) X I N-Nitrosodiphenylamine X (10,330) X N-Nitroso-di-n-propylamine X (10,330) X Di-n-octylphthalate X (10,330) X I Pentachlorophenol X (50,1600) X Phenanthrene X (10,330) X Phenol X (10,330) X I Pyrene X (10,330) X 1,2,4-Trichlorobenzene X (10,330) X 2,4,5-Trichlorophenol X (10,330) X 2,4,6-Trichlorophenol X (10,330) X I * Note that there are approximately 85 additional parameters (not listed in this table) that are included in the Part 373-2 Appendix 33 list of parameters that are not analyzed for in TCL I (method 8270) analyses. ** Detection limits are the same for water and soil. I I I I I I S 12050 3-18 I I ITable 3-4 PARAMETERS AND DETECTION LIMITS OF PESTICIDES/PCBs TCL* I (Method 8080) (Detection Limits ppb) Part 373-2* IParameters (Water.Soil) Appendix 33 Aldrin X (0.05,8.0) X AROCLOR-1016 X (0.5,80) I AROCLOR-1221 X (0.5,80) AROCLOR-1232 X (0.5,80) AROCLOR-1242 X (0.5,80) I AROCLOR-1248 X (0.5,80) AROCLOR-1254 X (1.0,160) AROCLOR-1260 X (1.0,160) I Alpha-BHC X (0.05,8.0) X Beta-BHC X (0.05,8.0) X Delta-BHC X (0.05,8.0) X Gamma-BHC X (0.05,8.0) X I Alpha-chlordane X (0.5,80) X Gamma-chlordane X (0.5,80) 4,4'-DDD X (0.10,16) X I 4,4'-DDE 4,4'-DDT X (0.10,16) X X (0.10,16) X Dieldrin X (0.10,16) X Endosulfan I X (0.10,16) X I Endosulfan II X (0.10,16) X Endosulfan Sulfate X (0.10,16) X Endrin X (0.10,16) X I Endrin-Ketone X (0.10,16) Heptachlor X (0.05,8.0) X Heptachlor Epoxide X (0.05,8.0) X I Methoxychlor Toxaphene X (0.05,8.0) X X (1.0,160) X Total PCBs X (1.0,160) X I * Note that there are approximately 85 additional parameters (not listed in this table) that are included in the Part 373-2 Appendix 33 list of parameters that are not analyzed for in TCL I (method 8080) analyses. I I I S12050 3-19 I I ITable 3-5 PARAMETERS AND DETECTION LIMITS OF INORGANIC CONSTITUENTS IMETHOD 200.7 I TCL* (Method 200.7) Detection Limits Part 363-2 Part 360 Metals* IParameters ppb(Water.Soil) Appendix 33 (Expanded List) Aluminum X (200, 20,000) X Antimony X (60, 6,000) X X I Arsenic X (10, 1,000) X X Barium X (200, 20,000) X X Beryllium X (5, 500) X X I Cadmium X (5, 500) X X Calcium X (5,000, 500,000) X Chromium (total) X (10, 1,000) X X Cobalt X (50, 5,000) X I Copper X (25, 2,500) X X Cyanide X (100, 10,000) X X Iron X (5, 500) X I Lead X (5,000, 500,000) X X Magnesium X (15, 1,500) X Manganese X (0.2, 20) X I Mercury X (40,4,000) X X Nickel X (5,000, 500,000) X X Potassium X (5, 500) X Selenium X (10, 1,000) X X I Silver X (5,000, 500,000) X X Sodium X (10, 1,000) X Thallium X (50, 5,000) X X I Vanadium X (20, 2,000) X Zinc X (10, 1,000) X X I I I I 1 I S 1205c 3-20 I I ITable 3-6 EP TOXICITY - PARAMETERS AND DETECTION LIMITS I IParameters Detection Limit(ppb)* r1. Arsenic 1,000 2. Barium 10,000 I3. Cadmium 100 4. Total Chromium 1,000 I5. Lead 1,000 6. Mercury 50 I 7. Selenium 100 8. Silver 1,000 9. gamma-BHC (Lindane) 100 I10. 2,4-Dichlorophenoxyacetic acid; (2,4-D) 1,000 1 11. Endrin 5 12. Methoxychlor 1,000 1 13. 2,4,5-Trichlorophenoxypropionic acid; (2,4,5-TP; Silvex) 100 1 14. Toxaphene 100 I * Extraction Procedure Toxicity (concentrations in extract) I I I 1 I S12050 3-21 I 111 Table3-7 I LEACHATE PARAMETERS AND DETECTION LIMITS Parameters Detection Limit(ppb) I Biochemical Oxygen Demand (BODS) 2,000 1 Chemical Oxygen Demand (COD) 1,000 Total Dissolved Solids (TDS) 10,000 I Ammonia, as N 50 Total Kjeldahl Nitrogen, as N 100 I Nitrate-Nitrite 100 Sulfate 5,000 Total Organic Carbon 2,000 IChloride 5,000 Alkalanity NA ISpecific Conductance NA Chromium(Hexavalent) NA I MB AS NA Color NA Odor NA IHardness NA Total Volatile Solids NA ITurbidity NA Boron NA IDissolved Oxygen NA INA -Not applicable I I I I Is 12056 3-22 r compounds in Appendix 33 are the less common contaminants that are not likely to be found during this investigation. Therefore, it was determined that the library search (+30) would be significant enough to include any of the Appendix 33 compounds that could be present at the site. The rationale for selection of the analytical procedures was contained in the Work Plan approved by NYSDEC. r 3.2.7 Sampling Procedures r Procedures that were used to collect the subsurface soil (split spoon) and groundwater samples are discussed below. Descriptions of sample containers, preservative techniques and maximum holding times can be found in Tables 3-8 and 3-9. r3.2.7.1 - Subsurface Soil (Split Spoon) Sample procedures for subsurface soil (split spoon) were implemented according to Section 5.6.1 of the Work Plan QA/QC procedures. Each split spoon was decontaminated according to the procedure outlined in Section 3.1.5 of this report. Chain of Custody Records, Sample Information Records and Boring Log Forms were prepared for each sample. 3.2.7.2 - Groundwater rSample procedures for groundwater were implemented according to Section 5.6.2 of the Work Plan QA/QC procedures. Teflon bailers were decontaminated at the laboratory as per the procedure outlined in Section 3.1.5 of this report and dedicated to each well. Nylon cord was dedicated to each well sampled and used only once. Location Sketches, Chain of Custody Forms and Sample Information Records were prepared for each sample. r r r 1 r s 12050 3-23 1 1 1 1 1 1 1 1 1 ' 1 1 1 1 1 1 1 1 1 Table 3-8 MONITORING PARAMETERS METHOD OF ANALYSIS, PRESERVATION AND HOLDING TIMES Number Container Sample Maximum Sample Location Sample Type Sample Matrix Sample Fraction of Samples Frequency Type/Size/No. Preservation Holding Time Analytical Method Monitoring Well Grab Soil Volatile Organics 1 1 Glass, clear/ Cool to 4°C 7 days after 1986 USEPA SW846 Boreholes 40 mL/2 VTSR for Method 8240 extraction and analysis Volatile Organics 1* 1 Glass, clear/ Cool to 4°C 7 days after 1986 USEPA SW846 40 mL/2 VTSR for Method 601/602 extraction and analysis Grab Soil Base Neutral 1 1 Glass, amber/ Cool to 4°C 5 days after 1986 USEPA SW846 and Acid 150 mL/1 VTSR for Method 8270 Extractable extraction, Organics 40 days after VTSR for analysis Grab Soil Pesticides/PCBs 1 1 Glass, amber/ Cool to 4°C 5 days after 1986 USEPA SW846 150 mL/1 VTSR for Method 8080 extraction, 40 days after VTSR for analysis Grab Soil Metals 1 1 Glass, amber/ Cool to 4°C 26 days after 1989 NYSDEC ASP, 150 mL/1 VTSR for Hg Method 200.7** analysis, 6 months after VTSR for analysis of others Grab Soil Cyanide 1 1 Glass, amber/ Cool to 4°C 12 days after 1989 NYSDEC ASP, 150 mL/1 VTSR for Method 335.2 analysis EPTOX Metals 1*** Glass, amber/ Cool to 4°C N/A 1986 USEPA SW846 150 mL/1 Method 1310 Pesticides/ 1*** Glass, amber/ Cool to 4°C N/A 1986 USEPA SW846 Herbicides 150 mL/1 Method 1310 *Analysis depends on Method 8240 results. **and SW-846 Methods for: Selenium (7740), Lead (7421), Thallium (7841), Mercury (7470), Arsenic (7060). ***Analysis depends on TCL+30 results. VTSR - Verified Time of Sample Receipt at the laboratory 51205G all M E MI all E 11111 all E E NM 11111 all all E 1 E M — Table 3-8 (continued) MONITORING PARAMETERS METHOD OF ANALYSIS, PRESERVATION AND HOLDING TIMES Number Container Sample Maximum Sample Location Sample Type Sample Matrix Sample Fraction of Samples Frequency Type/Size/No. Preservation Holding Time Analytical Method Monitoring Grab Groundwater Volatile Organics 14 1 Glass, clear/ Cool to 4°C 7 days after 1986 USEPA SW846 Wells 40 mL/3 VTSR for Method 8240 extraction and analysis Volatile Organics 14* 1 Glass, clear/ Cool to 4°C 7 days after 1986 USEPA SW846 40 mL/3 VTSR for Method 601/602 extraction and analysis Grab Groundwater Base Neutral 14 1 Glass, amber/ Cool to 4°C 5 days after 1986 USEPA SW846 and Acid 11/2 VTSR for Method 8270 Extractable extraction, Organics 40 days after VTSR for analysis Grab Groundwater Pesticides/PCBs 14 1 Glass, amber/ Cool to 4°C 5 days after 1986 USEPA SW846 1L/2 VTSR for Method 8080 extraction, 40 days after VTSR for extraction Grab Groundwater Metals 14 1 Plastic/1L/1 Cool to 4°C 26 days after 1989 NYSDEC ASP, VTSR for Hg Method 200.7** analysis, 6 months after 1 VTSR for analysis of others Grab Groundwater Cyanide 14 1 Plastic/1L/1 Cool to 4°C 12 days after 1989 NYSDEC ASP, VTSR for Method 335.2 analysis Grab Groundwater Leachate 14 1 See Table See Table See Table See Table Parameters No. 5-2 No. 5-2 No. 5-2 No. 5-2 *Analysis depends on Method 8240 results. **and SW846 Methods for Selenium (7740), Lead (7421), Thallium (7841), Mercury (7470), and Arsenic (7060). VTSR - Verified Time of Sample Receipt at the laboratory S1205G MN NI al E NS E EN E N IIIIII 11.11 IIIIII all M 1111. Table 3-8 (continued) MONITORING PARAMETERS METHOD OF ANALYSIS, PRESERVATION AND HOLDING TIMES Number Container Sample Maximum Sample Location Sample Type Sample Matrix Sample Fraction of Samples Frequency Type/Size/No. Preservation Holding Time Analytical Method Site/Study Area Field Blank Water Volatile Organics 2* 1 Glass, clear/ Cool to 4°C 7 days after 1986 USEPA SW846 40 mL/3 VTSR for Method 8240 extraction and analysis Volatile Organics 2** 1 Glass, clear/ Cool to 4°C 7 days after 1986 USEPA SW846 40 mL/3 VTSR for Method 601/602 extraction and analysis Field Blank Water Base Neutral 2* 1 Glass, amber/ Cool to 4°C 5 days after 1986 USEPA SW846 and Acid 1L/2 VTSR for Method 8270 Extractable extraction, Organics 40 days after VTSR for analysis Field Blank Water Pesticide/PCBs 2* 1 Glass, amber/ Cool to 4°C 5 days after 1986 USEPA SW846 11/2 VTSR for Method 8080 extraction, 40 days after VTSR for analysis Field Blank Water Metals 2* 1 Plastic/1L/1 o 26 days after 1989 NYSDEC ASP, pH HNO3(2, VTSR for Hg Method 200.7*** Cool to 4°C analysis, 6 months after VTSR for analysis of others Field Blank Water Cyanide 2* 1 Plastic/1L/1 NaOH to 12 days after 1989 NYSDEC ASP, pH >12, VTSR for Method 335.2 Cool to 4°C analysis Field Blank Water Leachate 2* 1 See Table See Table See Table See Table Parameters No. 5-2 No. 5-2 No. 5-2 No. 5-2 *One for each of the sample matrices (soil [7 samples], groundwater [14 samples] and leachate [3 samples)). **Analysis depends on Method 8240 results. ***and SW846 Methods for Selenium (7740), Lead (7421), Thallium (7841), Mercury (7470), Arsenic (7060). VTSR - Verified Time of Sample Receipt at the laboratory S1205G I 1 E M 1 E 11111 1 1111 1 N E 11111 11111 E MN Table 3-8 (continued) MONITORING PARAMETERS METHOD OF ANALYSIS, PRESERVATION AND HOLDING TIMES Number Container Sample Maximum Sample Location Sample Type Sample Matrix Sample Fraction of Samples Frequency Type/Size/No. Preservation Holding Time Analytical Method Site/Study Area Trip Blank Water Volatile Organics 3 1 Glass, clear/ Cool to 4°C 7 days after 1986 USEPA SW846 40 mL/1 VTSR for Method 8240 extraction and analysis *One for every 48-hour sampling period for liquid samples only (anticipate about one [1] week for sample collection). VTSR - Verified Time of Sample Receipt at the laboratory S1205G 1 1 r i 1 11 r 1 1 1 1 1 1 1 1 1 - r Table 3-8 (continued) MONITORING PARAMETERS METHOD OF ANALYSIS, PRESERVATION AND HOLDING TIMES Number Container Sample Maximum Sample Location Sample Type Sample Matrix Sample Fraction of Samples* Frequency* Type/Size/No.* Preservation* Holding Time Analytical Method Laboratory Method Blank Water Volatile Organics 3* 1 Glass, clear/ Cool to 4°C 7 days after 1986 USEPA SW846 40 mL/3 VTSR for Method 8240 extraction and analysis Volatile Organics 3** 1 Glass, clear/ Cool to 4°C 7 days after 1986 USEPA SW846 40 mL/3 VTSR for Method 601/602 extraction and analysis Method Blank Water Base Neutral 3* 1 Glass, amber/ Cool to 4°C 5 days after 1986 USEPA SW846 and Acid 1L/2 VTSR for Method 8270 Extractable extraction, Organics 40 days after VTSR for analysis Method Blank Water Pesticides/PCBs 3* 1 Glass, amber/1 Cool to 4°C 5 days after 1986 USEPA SW846 1L/2 VTSR for Method 8080 extraction, 40 days after VTSR for analysis Method Blank Water Metals 3* 1 Plastic/1L/1 HNO33 to 26 days after 1989 NYSDEC ASP, pH<2, VTSR for Hg Method 200.7*** Cool to 4°C analysis, 6 months after VTSR for analysis of others Method Blank Water Cyanide 3* 1 Plastic/1L/1 NaOH to 12 days after 1989 NYSDEC ASP, pH>12, VTSR for Method 335.2 Cool to 4°C analysis Method Blank Water Leachate 3* 1 See Table See Table See Table See Table Parameters No. 5-2 No. 5-2 No. 5-2 No. 5-2 *As required in accordance with 1989 NYSDEC ASP (based upon 7 soil samples, 14 groundwater samples and 3 leachate samples [total of 24]). **Analysis depends on Method 8240 results. ***and SW846 Methods for Selenium (7740), Lead (7421), Thallium (7841), Mercury (7470), Arsenic (7060). VTSR - Verified Time of Sample Receipt at the laboratory S1205G 1 1 1 1 1 1 1 1 r 1 1 1 r 1 1 1 1 1 1 Table 3-8 (continued) MONITORING PARAMETERS METHOD OF ANALYSIS, PRESERVATION AND HOLDING TIMES Number Container Sample Maximum Sample Location Sample Type Sample Matrix Sample Fraction of Samples Frequency Type/Size/No. Preservation Holding Time Analytical Method Site/Study Area Matrix Spike Liquid Volatile Organics 1* 1 Glass, clear/ Cool to 4°C 7 days after 1986 USEPA SW846 and Matrix 40 mL/3 VTSR for Method 8240 Spike extraction Duplicate and analysis Volatile Organics 1** 1 Glass, clear/ Cool to 4°C 7 days after 1986 USEPA SW846 40 mL/3 VTSR for Method 601/602 extraction and analysis Liquid Base Neutral 1* 1 Glass, amber/ Cool to 4°C 5 days after 1986 USEPA SW846 and Acid 1L/2 extraction, Method 8270 Extractable 40 days after Organics VTSR for analysis Liquid Pesticides/PCBs 1* 1 Glass, amber/ Cool to 4°C 5 days after 1986 USEPA SW846 1L/2 VTSR for Method 8080 extraction, 40 days after VTSR for analysis Liquid Metals 1* 1 Plastic/1L/1 HNO3 to 26 days after 1989 NYSDEC ASP, pH <2, VTSR for Hg Method 200.7*** Cool to 4°C analysis, 6 months after VTSR for analysis of others Liquid Cyanide 1* 1 Plastic/1L/1 NaOH to 12 days after 1989 NYSDEC ASP, pH >12, VTSR for Method 335.2 Cool to 4°C analysis Liquid Leachate 1* 1 See Table See Table See Table See Table Parameters No. 5-2 No. 5-2 No. 5-2 No. 5-2 *One for the liquid sample matrices (groundwater [14 samples) and leachate [3 samples]). **Analysis depends on Method 3240 results. ***and SW846 Methods for Selenium (7740), Lead (7421), Thallium (7841), Mercury (7470), Arsenic (7060). VTSR - Verified Time of Sample Receipt at the laboratory S1205G N N M M M r — 1 NE MI MI M r r — W r M all Table 3-8 (continued) MONITORING PARAMETERS METHOD OF ANALYSIS, PRESERVATION AND HOLDING TIMES Number Container Sample Maximum Sample Location Sample Type Sample Matrix Sample Fraction of Samples Frequency Type/Size/No. Preservation Holding Time Analytical Method Site/Study Area Matrix Spike Solid Volatile Organics 1* 1 Glass, clear/ Cool to 4°C 7 days after 1986 USEPA SW846 and Matrix 40 mL/3 VTSR for Method 8240 Spike extraction Duplicate and analysis Volatile Organics 1** 1 Glass, clear/ Cool to 4°C 7 days after 1986 USEPA SW846 40 mL/3 VTSR for Method 601/602 extraction and analysis Solid Base Neutral 1* 1 Glass, amber/ Cool to 4°C 5 days after 1986 USEPA SW846 and Acid 150 mL/1 VTSR for Method 8270 Extractable extraction, Organics 40 days after VTSR for analysis Solid Pesticides/PCBs 1* 1 Glass, amber/ Cool to 4°C 5 days after 1986 USEPA SW846 150 mL/1 VTSR for Method 8080 extraction, 40 days after VTSR for analysis Solid Metals 1* 1 Glass, amber/ Cool to 4°C 26 days after 1989 NYSDEC ASP, 150 mL/1 VTSR for Hg Method 200.7*** analysis, 6 months after VTSR for analysis of others Solid Cyanide 1* 1 Plastic/1L/1 NaOH to pH>12 12 days after 1989 NYSDEC ASP, Cool to 4°C VTSR for Method 335.2 analysis *One for the solid sample matrix (soil [1 sample)). **Analysis depends on Method 8240 results. ***and SW846 Methods for Selenium (7740), Lead (7421), Thallium (7841), Mercury (7470), Arsenic (7060). VTSR - Verified Time of Sample Receipt at the laboratory S1205G 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 Table 3-8 (continued) MONITORING PARAMETERS METHOD OF ANALYSIS, PRESERVATION AND HOLDING TIMES Number Container Sample Maximum Sample Location Sample Type Sample Matrix Sample Fraction of Samples* Frequency* Tvpe/Size/No.* Preservation* Holding Time Analytical Method Laboratory Spike Blank Water Volatile Organics 3* 1 Glass, clear/ Cool to 4°C 7 days after 1986 USEPA SW846 40 mL/3 VTSR for Method 8240 extraction and analysis Volatile Organics 3** 1 Glass, clear/ Cool to 4°C 7 days after 1986 USEPA SW846 40 mL/3 VTSR for Method 601/602 extraction and analysis Spike Blank Water Base Neutral 3* 1 Glass, amber/ Cool to 4°C 5 days after 1989 NYSDEC ASP, and Acid 1L/2 VTSR for Method 8270 Extractable extraction, Organics 40 days after VTSR for analysis Spike Blank Water Pesticides/PCBs 3* 1 Glass, amber/1 Cool to 4°C 5 days after 1986 USEPA SW846 1L/2 VTSR for Method 8080 extraction, 40 days after VTSR for analysis Spike Blank Water Metals 3* 1 Plastic/1L/1 HNO3 to 26 days after 1989 NYSDEC ASP, 1 pH<2, VTSR for Hg Method 200.7*** Cool to 4°C analysis, 6 months after VTSR for analysis of others Spike Blank Water Cyanide 3* 1 Plastic/1L/1 NaOH to 12 days after 1989 NYSDEC ASP, pH>12, VTSR for Method 335.2 Cool to 4°C analysis Spike Blank Water Leachate 3* 1 See Table See Table See Table See Table Parameters No. 5-2 No. 5-2 No. 5-2 No. 5-2 *As required in accordance with 1989 NYSDEC ASP (based upon 7 soil samples, 14 groundwater samples, and 3 leachate samples [total of 24]). **Analysis depends on Method 8240 results. ***and SW846 Methods for Selenium (7740), Lead (7421), Thallium (7841), Mercury (7470), Arsenic (7060). VTSR - Verified Time of Sample Receipt at the laboratory S1205G an /I — — MI MN NM N UN In N1 — N — a EN MI 1 1 Table 3-9 LEACHATE PARAMETERS METHOD OF ANALYSIS,PRESERVATION AND HOLDING TIMES* Parameter Method of Analysis Preservation Container Holding Time Ammonia Method 350.3 H2SO4 to pH <2; Plastic or Glass 26 days Cool to 4°C Total Organic Method 415.1 HC1 or H2SO4 Glass 5 days Carbon to pH<2; Cool to 4°C Total Dissolved Method 160.1 Cool to 4°C Plastic or Glass 26 days Solids Alkalinity Method 310.1 Cool to 4°C Plastic or Glass 12 days Chloride Method 325.3 None Required Plastic or Glass 26 days pH Method 150.1 None Required Glass Field Measurement Specific Method 120.1 None Required Glass Field Measurement Conductance Total Kjedahl Method 351.3 H2SO4 to pH <2; Plastic or Glass 26 days Nitrogen Cool to 4°C Nitrate Method 352.1 H2SO4 to pH <2; Plastic or Glass 26 days Cool to 4°C 1 BOD (5-day) Method 405.1 Cool to 4°C Plastic or Glass 24 hours COD Method 410.1 H2SO4 to pH <2; Plastic or Glass 26 days Cool to 4°C *Taken from the 1989 NYSDEC ASP. S 1205G A 1 4.0 SITE ASSESSMENT 1 4.1 Background and History 4.1.1 Site Location and Background Information The Town of Southold operates a municipal solid waste landfill for the disposal of approximately 150 tons per day (in winter months) to 300 tons per day (in summer months) of municipal solid waste. The existing Southold (Cutchogue) landfill comprises approximately 45 ' acres (excluding the 17 acres on Town property and north of the landfill area which was previously used as a mining/borrow area). The landfill site is located between Oregon Road and 1 North or Middle Road (County Road 48) to the north and south, respectively, and Cox Lane and Depot Lane to the east and west, respectively, in Cutchogue, Suffolk County, New York (see Figure 1-1). A site plan of the Southold landfill is shown in Figure 1-2. The Southold landfill is situated in a rural, agricultural area in Cutchogue, approximately 2.5 miles east of Mattituck and 8 miles west of the Incorporated Village of Greenport. The landfill is located in an agricultural-industrial zoned area, with the existing landfill and planned landfill both zoned LI (Light Industrial) as illustrated in Figure 4-1. Directly adjacent to the northern, eastern and southern boundaries of the landfill is LI zoned land, and LIO (Light Industrial/Office Park) zoned land is located adjacent to the western boundary. Further to the north, south, east and west of the landfill is A-C (Agricultural Conservation) zoned land. The Town of Southold initiated operations at the landfill site in 1920 for the disposal of municipal solid waste, refuse, debris and scavenger (septic system) waste. Figure 4-2 shows the ' location of past and present landfill operations. As shown in this figure, the landfill site includes a large excavated area in the northern corner of the site (the planned landfill site), which was used to obtain cover material for the present landfilling operation, and two abandoned scavenger waste lagoons along the western border of the landfill. The lagoons formerly accepted septic system waste from both commercial and residential sources. Since the present landfill initiated operation prior to the promulgation of the Part 360 requirements, it was constructed without a liner. Also, portions of the currently required 100 foot buffer zone between the landfill and its property boundaries have been used for landfilling solid waste in the past prior to the current requirements. In 1984, the Town of Southold requested a variance for an exemption from these requirements as specified in the Part 360 regulations S12060 4-1 I - , -.R-40 .. . — R-8O a°° " I R R ��\ v p , -8�0 r _��_ I800.,/ t --. i, � A—C \ A A—C t .. a (!��� SOUTHOLD LANDFILL; I _.-L---____-=-- -.7- \ '' _.,_- .... — LIO .';> " LI : `, `� I _�. _ - 1 i I ----r---, �1..._- �.~ Fes► r 1 ' • ` ..�.._-- f� 6).• ,, \. 1 I .11"-- 1 JLT- ` ,.1 ___-, l- �' \ 1 A—C . I IA—C , - \I. iI LEGEND A-C AGRICULTURAL CONSERVATION I _R-40 RESIDENTIAL LOW DENSITY AA R-80 RESIDENTIAL LOW DENSITY A 1 R R RESORT/RESIDENTIAL 1 LB LIMITED BUSINESS 1 L I 0 LIGHT'INDUSTRIAL/OFFICE PARK SCALE IN FEET L I LIGHT INDUSTRIAL 800 0 800 1600 SOURCE:TOWN OF SOUTHOLD ZONING MAP,1989 __-_--- TOWN OF SOUTHOLD I SOUTHOLD LANDFILL • bod ZONING MAP 1� ,...p�.� FIGURE 4-1 C1 ❑ Ej 0 0 0 DO o 11`❑ -- C------ 4P1'004, 0?1'0 p4, 1 i i)___ -0)%r oA� ,. 'o i � ❑ \I q \\\ 0 P \\\\ o \1 .../ \\ \\ \\ Q PLANNED `\\ 0 LANDFILL \ AREA \1 ` i ::: 1 i':.''• . �_ ' iiCONSTRUCTION DEBRIS I, a /------ - '�i•�: _ * \ AND MUNICIPAL I. - -_ - - \\\` ` I i%�� \A`� WI) \ \ SOLID WASTE + R 8 LA D CL�AAINA DEBRIS. \ I. FORMER NG I CQ T, TION DEBRIS, \ AREA - fC� BURN AREA \ El \ OD ASH) \ \ T C • I /,_� ��\ o FORMER I I � I / / , �.� \� SCAVENGER A i \ k //`\%_ , — , \ \\ WASTE LAGOONS \ �- � 11 \\,\ \ i /AL 4CTIVE�i, G\ !, • OVERHEAD II �-� t,�►sr1�4�,k�lM(G •� ELECTRIC \ /�j/ A TE W) ♦\ LINES i / _ �/ SW) / \ . / \ \ = 1\_/ r �/ \ \ ‘ \ � '7 --- \ 1101."'- •\ \ J / WASTE p IL\ STORAGE -_ -- 11 , .pI I�i i i i: l 1�iji.411i;; ,j/ O 1 AI AND a \.. �\ ft, : �' c `Ec 1, \; \ ', - CENTERTI ON `AU MOBIIEs �' I QCni �1 ` ` \; \ `v i oWEIGHINGo/1 `\ \ Q"- �\ ''\ C3 STATION STORAGE II i I O \\ 0 I`\1 \ 1`J 4S r?., ` 1� \1 IAF \ 0A° GARAGE -1 ` \\ \I G Y R a I - 0 \\% \ ,I / oNt \ \ X11 (CO 11 \ d \ ---\\I \ ✓✓ , \\ 111111111111111. LANDFILL GAS \\ VENTNG TRENCH 11 \\ OI 1 \\ \\ \\ N°Ill \\\ SCALE foo soo soo ` \ NM INIMMI TOWN OF SOUTHOLD SOUTHOLD LANDFILL O LANDFILL OPERATIONS MAP FIGURE 4-2 I (Section 360-1.7). The variance was requested on the basis of compatible surrounding land use, which is predominantly agricultural, vacant land, sand mining and only limited residential land, and the significant adverse economic and environmental impacts which would be associated with excavating landfilled refuse. This variance, however,was not granted by NYSDEC. Upon termination of operations at the existing landfill, the Town plans to close the landfill in accordance with NYSDEC Part 360 requirements and begin operation of the planned landfill, which will be constructed in accordance with the current Part 360 regulations. The planned landfill site consists of approximately 17 acres of almost entirely excavated land, which was the borrow area located immediately north of the existing landfill (see Figure 4-2). The planned site is located adjacent to an inactive and closed portion of the existing landfill, and consists of predominantly excavated and disturbed soil and sand that was used for clean cover material for the existing landfill. 4.1.2 Site History and Previous Investigations As previously discussed, the Town of Southold began operation of the landfill in 1920 for ' the disposal of municipal solid waste, refuse, debris and scavenger waste. Subsequent to the hurricane of 1938, large quantities of construction and demolition debris, land clearing debris, as ' well as other materials, were landfilled in the southern portion of the site. This area was also used for burying old automobiles. In 1974, Holzmacher, McLendon and Murrell, P.C. (H2M), under contract to the Suffolk County Department of Health Services (SCDHS), conducted a subsurface investigation at the Southold landfill in order to determine the depth of fill material and municipal sanitary waste at the site. Three borings were drilled at separate locations within the existing landfill area ' (approximately at the center and south-central portions, and west-central border of the current landfill). Information obtained from the borings indicated that the landfill had been excavated to ' depth of approximately 3 feet above the water table and subsequently landfilled with municipal wastes and other fill material. In October of 1976, a methane gas survey was conducted at the landfill. Well points were driven into the ground in the northern, southeastern and southwestern portions of the landfill and ' measured for methane. The results of this survey showed low levels of gas in comparison to the Lower Explosion Level (LEL) for methane. S 1206G 4-4 I In 1985, Woodward-Clyde Consultants prepared a Phase I investigation at the landfill for the New York State Department of Environmental Conservation. The results of this investigation have been used in the preparation of this report. I In the summer of 1986, the scavenger waste lagoons at the landfill were abandoned upon commencement of operations at the Southold Scavenger Waste Pretreatment Plant. Sludge removal from the scavenger waste lagoons was performed during the summer of 1987. The sludge removed from the lagoon was disposed of in the landfill. ' Between 1980 and 1984, five monitoring wells (S-76687, 71045, 69761, 68916 and 68831) were installed on the landfill site and sampled by SCDHS. Surveillance of these wells continued in 1985 and the most recent sampling was conducted in 1989. ' On December 4 and 5, 1990, NUS Corporation performed a site inspection of the Southold landfill for the United States Environmental Protection Agency. During the inspection, five groundwater and three soil samples were collected off-site, and three groundwater and six soil samples were collected on-site. The results of prior on-site sampling, and other groundwater and water supply quality monitoring conducted by SCDHS in the area of the Southold landfill, have shown that groundwater in the vicinity of the landfill has been contaminated primarily by fertilizers and pesticides originating from agricultural activities surrounding the site. Groundwater and water I supply quality studies indicate that many wells in the vicinity of the landfill, including water supply, irrigation/agricultural and monitoring wells, have been found to be contaminated with the insecticide aldicarb. Other wells have been found to be contaminated by the agricultural chemical Ifertilizers, nitrate and (potassium) chloride, and the insecticide dichloropropane. All of these contaminants are pervasive within the upper glacial aquifer upgradient, below and downgradient of the Southold landfill site, and are found in concentrations that exceed groundwater and drinking water standards. These results indicate that the landfill is not a source of this contamination. Although one shallow well on the landfill site does indicate that leachate from the landfill is impacting groundwater in the immediate vicinity of the landfill, the inorganic chemical results from previous investigations indicate a weak (and limited) leachate plume, and only trace amounts (<10 ug/1) of nonpesticide organic compounds are found occasionally in concentrations exceeding standards. Based on this information, it appears that the Southold landfill is not a significant 111 s 12o6o 4-5 I Isource of contamination. A detailed description of the results of previous sampling efforts at the Southold landfill can be found in Appendix G. All of the monitoring wells, private wells and soil sampling locations for the previous sampling programs are shown in Figure 4-3. 4.1.3 Site Reconnaissance Site visits and reconnaissance were conducted to collect information regarding past and Ipresent operations at the landfill, observe the existing conditions at the landfill and to verify background information and accessibility to the site for the purpose of conducting this Iinvestigation. Activities included locating existing monitoring wells, estimating the placement of proposed wells and sampling points, locating past, present and future landfilling operations, I excavation areas, and landfill closure and construction areas. Also, photographs were taken of the existing site conditions and current landfilling operations in order to document observations. In addition, other information was obtained from the Town of Southold including tax maps, zoning Imaps, site maps, as well as aerial photographs and other pertinent information. I4.1.4 Literature Search IA comprehensive search was made for pertinent and reliable existing information concerning regional and site-specific hydrogeologic and water quality conditions. The literature I search included, available records, reports and maps of the Suffolk County Department of Health Services (SCDHS), U.S. Soil Conservation Service (SCS), U.S. Geological Survey (USGS), New York State Department of Environmental Conservation (NYSDEC), Town of Southold and reports Iprepared by several engineering consultants. In addition, aerial photographs of the landfill site and surrounding area were obtained at scales of 1 inch equals 100 feet and 1 inch equals 200 feet, and are enclosed in Appendix H of this document. Well completion/construction logs and boring logs of wells formerly constructed in the vicinity of the landfill are included in Appendices I and J, Irespectively. 4.1.5 Water Well Survey An initial survey of monitoring wells, and public and private water supply wells within 1 Imile downgradient and 1/4 mile upgradient of the landfill site was conducted. The locations of the monitoring wells in the vicinity of the site are shown in Figure 4-4. Table 4-1 lists the available Iwell construction data for these wells. Wells located within approximately 1/4 mile upgradient of I I S1206G 4-6 ' egsk 7 T GW-5 A WELL NO.3 OREGON ROAD WELL NO.5 • WS-11 GW-6 • WELL NO.1 WELL NO.2 , VIII • all GW-8 WELL NO.4 • WS-10 0 . 109C O S-9 • S-68831 5 S-68916 m . 3 i O �4 O it O� 0 . SOUTHOLD . . S-6 ._ . . ; LANDFILL o FORMER t SCAVENGER li-8 WASTE LAGOONS Iii S-4 WS-5 . 0. . . . . . . . . .A S-5 S-7668 •• WS WS-6%% -4 GW-2 . . ii S-3p ' WS- rii .•S-71045 •S-69761 110116111111Rae) S-1, S-2 011191111WS-2 (c.GW=1 i ` WSiiiiiiiim -- WS-8 wili NORTH (MIDDLE) ROAD OWS-9 LEGEND I DESIGNATON DESCRIPTION • GROUNDWATER MONITORING WELL AND WELL NO.1 SAMPLING LOCATION FROM PREVIOUS STUDIES • WATER SUPPLY WELL AND SAMPLING WS-1 LOCATION FROM PREVIOUS STUDIES • GROUNDWATER MONITORING WELL AND S-69761 SAMPLING LOCATION ON LANDFILL SITE APPROXIMATE USEPA GROUNDWATER DIRECTORY: C:\1027 0 400 G•1 SAMPLING LOCATIONS FILE NAME: PGWATER DATE: SEPT 1991 0 APPROXIMATE USEPA SOIL SCALE: SCALE IN FEET S1-S2 SAMPLING LOCATIONS D.SIG.NrR: Ji.G. TOWN OF SOUTHOLD dDvirka SOUTHOLD LANDFILL O andBtilucci PREVIOUS GROUNDWATER, WATER SUPPLY AND CONSULTING ENGINEERS SOIL SAMPLING LOCATIONS FIGURE 4-3 I �' 'R\X 8 CV /15\Z ✓� J Y• O , '''� �° S-53326 '` \I / Duck Pond vm, ` I • / ,v)..:___. 4..,,... ... /i ,,,,,, . I %; ' '4 S-71286 ). \ ♦•i• SOUTHOLD, �,` �,� s1' S-85808 • •rS-71287\ i \b�G\y, LANDFILL 7` .,r •�� O \l �\ ° S-71285 \ ,h H•e , . ,Ib, 11- _,,< . S \ S-71284 1s.S-71044 °mac. .:;at,'• e 4, ..., • / 0� ,'S-7 1 2 8 3... S-68831 ': ,;:a,;i;';';:; `iti.,` ._ _ `'.` ..'• .. -, `},.:s::.: t S-7 51 13I , �l C ' /N-7 n ,---,0 )4,., 5-88918 :::•.:v .: - c`�` ? `v / ` `�. C----,... w,::,,:;:. S-89781 ;� o .t J�-�ao. ^�j� S-78887' ;:, S-71045- a ..• '96, ` �S-7128 ,'. ,� '11 1. �� < <, +`.• •j ! INFERRED DIRECTION OF .) /� I %' °• \ �� \ ' '.GROUND_WATER. FLOW • 1.\\ ao' q.° , v \ ,, f tom: i . oat' `�� S-71170 \ , / • N;�\• . ., I o ., �r }�� S-71171 �\�o ... :-To, P D • 'Sb'l� �... Cutcbo a to "\\L\ \ '/ ,.••1 N S-71191 �' •'� '. y'- 10 � ♦ �• •••� •'Sacred tuts ` eo '.\...• / S-b3324 ° !'.•.. S-71281 ., ''ad / S-65605 .°°\ 3-71280 • 5-8642+ • • 1 ," '• S-32390 ; -� �y 1 • 510390 :.•\ '� ti / ` '•e` VP ° •°e• \ \ .<...Cutfcllogue ;r. •. •;$ 4;—� I / / \ \ /<) . \'.. �'. c, •. \.) 3-71279! ' • `,off° `� \/ 1. :�,J. \ :� �, S-71278—. +� �� \` ' '�,-', CutcI10 ��!p•S-T 1278 j' lI \' , `o .++ - ^,0,. '> • 1. -� /0, . .S-71277 ' --...% 0� '4 --- - , -'° }i`,•L .1 BM 32. • \�� •° -\ le Z. \ ./ ,A. 9 \. �? '— ' ,S°s53327 0'. 1'. 1, ..... ti ,..7..i-s.\_ _:,.� �•.,. • i �\ �'` uU„`+i'''. \� �, . ig Norn? : -;1274le ) °,.� gM / ° +, 0 '< � �\ �° \ % AI. � S-71275 \ \•c" ' ••: ' � ,0.,' I'. ( ; I $1 I A I SCALE IN FEET 0 1000 2000 ISOURCE: USGS, MATTITUCK HILLS & SOUTHOLD QUADRANGLES TOWN OF SOUTHOLD SOUTHOLD LANDFILL I MONITORING WELLS LOCATED IN o girldsucci VICINITY OF LANDFILL FIGURE 4-4 I CONS/TOO iMN[IS I ITable 4-1 WELL CONSTRUCTION DATA I ** Well Number Date Completed Depth(feet)** Screened Interval (feet) IS-76687* 5/1/84 38 23-33 S-75113* -- -- -- S-71289 8/14/81 99 94-99 I S-71287 9/1/81 80 75-80 S-71286 8/31/81 24 20-24 S-71285 9/4/81 23 19-23 I S-71284 9/11/81 95 90-95 S-71283 9/10/81 23 19-23 S-71282 8/25/81 11 7-11 S-71281 8/21/81 91 86-91 I S-71280 8/19/81 14 12-14 S-71279 (test boring) 8/14/81 330 -- S-71278 7/30/81 11 9-11 I S-71277 7/29/81 52 48-52 S-71276 7/27/81 11 7-11 S-71275 7/20/81 19 15-19 I S-71274 7/22/81 25 15-25 S-71191 7/16/81 114 109-114 S-71171 7/13/81 30 28-30 S-71170 (test boring) 7/8/81 285 -- I S-71045* 6/24/81 22 20-22 S-71044 (test boring) 9/23/81 310 -- S-69761* 9/10/80 60 52-57 I S-68916* 4/24/80 102 97-102 S-68831* 4/17/80 51 38-48 S-65606 -- -- -- S-65605 -- ___ _ I S-53327 S-53326 -- -- -- S-53324 -- -- -- ' S-32390 __ 260 __ S-10390 -- S-6542 -- -- -- I I I I *Wells located at landfill. **Feet Below MSL S 12066 4-9 I Ithe landfill are wells S-71170, S-71171 and S-71191. One well located approximately 1/4 mile laterally west of the landfill is well S-71282. Although there are no NYSDEC-designated I (numbered) wells shown within this area, there exists several private water supply wells located within this area, as well as several private wells located upgradient within 1/4 mile and adjacent to the site. These private wells were identified and discussed along with all other wells that had Iavailable water quality records in Appendix G of this report. I4.2 Geology I4.2.1 Regional Geology This section describes the general hydrogeologic conditions on Long Island as it relates to the regional hydrogeology of the North Fork in Suffolk County, and the Town of Southold and the vicinity of the Southold landfill. I Long Island is composed of consolidated tilted basement rocks overlain by unconsolidated Isediments that dip in a southeasterly direction. The consolidated rocks, known as bedrock, are dense crystalline metamorphic and igneous rocks of Precambrian age. Overlying the bedrock is a Iseries of unconsolidated deposits that form Long Island's principal aquifers and confining units. I During the Cretaceous period, unconsolidated sediments including sands, silts, gravels and clays were deposited on the bedrock platform. Cretaceous deposits are a terrestrial origin and were probably deposited by prograding shores and coalescing deltas. These Cretaceous sediments Iare divided into two formations, the Raritan formation and the Magothy formation - Matawan group, undifferentiated. The Raritan formation is probably a continental coastal plain deposit and I is composed of the Lloyd sand member and an overlying unnamed clay member (Raritan confining unit) commonly referred to as the Raritan clay. Above the Raritan formation lies the I Magothy formation - Matawan group, undifferentiated which is composed of continental and shallow marine or deltaic deposits. IAfter the Cretaceous period, a long period of nondeposition or deposition followed by erosion occurred. Geologic activity by streams flowing across Long Island cut deep valleys into Ithe Cretaceous sediments of the Magothy. These valleys were filled with glacial sediments during Pleistocene glaciation almost completely covering the older Cretaceous (Magothy formation) Ideposits. I Is12060 4-10 ' The Cretaceous deposits are overlain by glacial outwash and morainal deposits of Pleistocene age, as well as Holocene deposits. The Pleistocene formations consist of several glacial, periglacial and interglacial units, including a marine clay known as the Gardiners clay. The Pleistocene or glacial deposits are believed to have been deposited during the Wisconsin stage of glaciation. This was the last stage of the glacial advance to reach Long Island. Prior to the southward movement/advance of the Pleistocene ice sheets to Long Island, an ' extensive clay unit (Gardiners clay) was deposited in shallow marine and brackish waters along the shores of what is now Suffolk County. This unit overlays the Magothy group and acts as a confining layer 100 to 300 feet thick. The northern portions of the Gardiners clay were subsequently eroded by advancing ice and glacial meltwaters, and Gardiners clay beds are now found only in the south shore area. The Pleistocene glaciation created the hilly Ronkonkoma moraine and the Harbor Hill ' moraine. The Ronkonkoma moraine forms the "spine" of Suffolk County and the South Fork. The Harbor Hill moraine encompasses the north shore and forms the North Fork of Long Island. ' As the glaciers began to melt and retreat, these deposits (sand, gravel and boulders) were eroded and carried by the melt water, creating extensive outwash plains of sand and gravel in the intermorainal areas and south to the Atlantic Ocean. These highly permeable deposits comprise the upper glacial aquifer and represent the majority of Suffolk's surficial sediments which average ' 100 to 200 feet thick. In general, the surficial geologic units in the study area consist of Pleistocene outwash and recent or Holocene deposits. Holocene deposits include soil zone, shore, beach and salt-marsh sediments. A generalized isometric geological cross section of the Southold Peninsula is shown in Figure 4-5. The geologic and hydrogeologic units on the North Fork in the Town of Southold are summarized in Table 4-2. The sequence of stratigraphic units on the North Fork is similar to that found on the main body of Long Island. The stratigraphic sequence from youngest to oldest rocks and deposits, and water-bearing properties of deposits underlying the project site and vicinity are described in Table 4-2. 111 A longitudinal cross section of the North Fork is depicted in Figure 4-6. As shown in Figure ' 4-6, the contact between upper glacial aquifer and Magothy aquifer deposits varies in depth from about -200 to -430 feet mean sea level (MSL). A thick clay layer is found at varying depths and thicknesses, but it is not certain whether the clays encountered are all part of a continuous layer that underlies the entire North Fork, or whether they occur as isolated lenses. S 1206Q 4-11 I ' +40 * . SEA LEVEL yam:.✓ :`G• P \P. :•'::•:::;'•';: // SALT WATER SEA LEVEL "'•"`':;�, /—i00 FRESH WATER f•%% - :•:::: .: ;'".':: :"• INTERFACE ..:... ....... • • O 200 •J I f•' J. 200 '.J .y _ '•�, ,,, Ota ,;; .:.: :.. l.: P.,. ,.tx,,..,. .: _300 I UNCONFORMITY ""'r —300 '...'"ti.,-::„.......'.::::::•%;:...:::,:y.....:..' �/ ,1/ : 3, ,c� '.'•:/• 'i''ie., //// .,,'": ^• ,/a• v--.''..;•-'•,''./.:.,414-.. ,r ', /,/// / ,'':;:,i� , .r .,;' s ' / / /, :/ —400 w�;�� :'`"ri.• ..: A::4��.��.'l yJ.• .fir, .i".�" >.. • .�!.:':////// O /// . `• // //% „, ` ,,, � �/ / �/ ,/ kr . ti • M1� �"• � .i• ./ ~•, : // "\ /, //TTS• 1i! ~'”:• ! // /.77,-t i r *, j / Q� / . UNCONFORMITY , . ` `'•+.z" •: >tt , ,/ '0F ///,/ is::': i : ,:f :\ • ..... .1/....„f ,.... ///, ,,,,,,,,' \\\ • v \\\\\\\\\\\\ ::. //, t1` /,/// /..�i : -�' I \\\\\\\\\\\\\\ "/,/ 47" ///, /. _eitQt r1; _ s'- \\‘‘ \\\\\\\\\\\\\\..// / / /::;:-'�� '1��: _ \\\\\\\\\\\\\\\ /,,,/ ///�.;.:::.� .. , \\\\\\\\\\\�//7,/ ,- ' ,,,, , - '--.'i —600 -4•••••;i:!:•:......:...... \\\\\\\\\�/// .. :::' `', _ - , •• G - ...............„. ..„--0-:45.. 2 Q - - • 7 3 Oa f ISOURCE: USGS, W.S.P.1619—GG.1963 TOWN OF SOUTHOLD SOUTHOLD LANDFILL I Dvklua GENERALIZED ISOMETRIC O GEOLOGICAL CROSS SECTION OF I .�-- THE SOUTHOLD PENINSULA FIGURE 4-5 I ITable 4-2 GEOLOGIC AND HYDROGEOLOGIC UNITS IN THE TOWN OF SOUTHOLD I Hydrogeologic IUnit Geologic Name Description and Water-Bearing Character Upper glacial Holocene and Mainly brown and gray sand and gravel of I aquifer upper Pleistocene deposits moderate to high hydraulic conductivity; also includes deposits of clayey glacial till and lacustrine clay of low hydraulic conductivity. A major aquifer. IGardiners clay Gardiners clay Green and gray clay, silt, clayey and silty sand, and some interbedded clayey and silty I gravel; low hydraulic conductivity. Unit tends to confine water in underlying aquifer. I Magothy aquifer Matawan group and Gray and white fine to coarse sand of Magothy formation, moderate hydraulic conductivity. Generally undifferentiated contains sand and gravel beds of low to I high hydraulic conductivity in basal 100 to 200 feet. Contains much interstitial clay and silt, and beds and lenses of clay I and low hydraulic conductivity. Not a highly developed aquifer in the study area. Raritan clay Unnamed clay Gray, black and multicolored clay and some I member of the silt and fine sand. Unit has low hydraulic Raritan formation conductivity and tends to confine water in underlying aquifer. ILloyd aquifer Lloyd sand member White and gray fine-to-coarse sand and of the Raritan gravel of moderate hydraulic conductivity formation and some clayey beds of low hydraulic I conductivity. Not developed as a source of water in the study area. I Bedrock Undifferentiated Mainly metamorphic rocks of low hydraulic crystalline rocks conductivity; surface generally weathered; considered to be the bottom of the ground I water reservoir. Not a source of water. I I Source: USGS W-RI Report 84-4271, 1986 I S 1206G 4-13 MI MI NM IIIIII MI In NMI Ell IIIIIII IIIIII IIIIIII NM MI NMI IIIII MI II= EMI IIIII I Vertical exaggeration 100x. I,'_,.7 APPROX LOCATION p4 1 .IL.; „ w i i OF SOUTHOLD bOO C� LANDFILL 8.; 4 J i T,.:4 F Y C} y .5U •.IN r0� _ CDJ`JI = • r� 3 a a .-,0 N; e V �� A Ut IN Sll — rAi[a fret[ ----------- I LEVEL • iN H GHOUNO WATER 1 IRISH GROUf10 WATER / fRESI��.+� 1N0 WATE11 fRESN OHOUN[ WATER/ 1 _ ft<✓ IOU- )/ - : y_ SALTY GROUND(CHLORDE)2S0 6my/1 1 -100 -150 2U /1/ flag• \ '/ ILC. 1U -250-- \ �r N \»� - 500 SALTY GROUND WATER , a - 500 /././ / (CHLORIDES)250n[/11 5�0• 7 1 / 11.G. - 550 - Nag. 1-7-7.1 Solid gray or brown clay. I. l:. _1 j U.C. Upper Chicle). Aquifer. 11'1E7 ILt.• 4JV.. -1 au,/ U.G. Hag. Hagothy Aquifer. 1 n,114- Hnr. -e50 -450} Per. Raritan Aquifer. l yd. ' Lyd. Lloyd Aquff•r. y,p . - :00 • Hagothy depoalts completely eroded away. Iter Lyd. 55u _ Notal All formation contact depths are approximate. -5,U Position of tb• top of the zone of diffusion. (chloride content in exc•s• -too- 250 mill) as determined by analysis of pore water centrifuged from co LI"Y4 -6W corn samples. Bedro•k -65C t- t __.._ Pueltfou of (reel ter/a:ltv,tter lntet lace as computed from GhyLcn-Ilerzberg - Lloyd 650 princlplo using water levels in teat walls. g•-dtork N - •00 __ eat luted position of the top of the woe of diffusion in •r•ea where no4 A A - TOO - —? teat wall data are available. ______/1" J L. FAri,- .„...---- . j KEY MAP ,-' NOT SCALE SOURCE: SCDHS, 1982 TOWN OF SOUTHOLD SOUTHOLD LANDFILL . di. , DViliCEI LONGITUDINAL GEOLOGIC CROSS SECTION ()) BBairtflucd OF THE NORTH FORK �_ t#btATIIGEWIEEtaS FIGURE 4-6 I Fresh groundwater under the North Fork is believed to exist as a series of four separate, irregularly shaped lenses as shown in Figure 4-6. The position of the freshwater-saltwater I interface, however, has only been measured in a few places and appears to be located at approximately -250 to -300 feet MSL in the vicinity of the existing and planned Southold landfill site. I 4.2.2 Local Geology The Town of Southold is located on the northeastrotrusion of Suffolk County ty known as the I North Fork. As discussed previously, this region of Long Island is an extension of the Harbor Hill moraine (along the north shore) which was produced during the advance of the last period of continental glaciation. The existing and planned Southold landfill is situated on an outwash plain, Isouth of the Harbor Hill moraine. The topographic features of the site area are described as that of rolling moraines and level to gently sloping outwash plains. 1 The landfill site lies on unconsolidated deposits of Pleistocene age associated with glacial Ioutwash from the Wisconsin glaciation, as well as Holocene or recent deposits. These deposits overlie the Magothy formation. The Pleistocene deposits constitute the upper glacial aquifer and I consist primarily of stratified sand and gravel containing little clay or silt, except for a clay layer sometimes referred to as the North Fork glacial clay. The Holocene or recent deposits include soil I zone, stream bed, shore, beach and salt-marsh sediments, as well as fill material. A series of geologic cross sections were constructed based on previously obtained Iinformation. The location of each cross section is shown in Figure 4-7. Figures 4-8 and 4-9 are geologic and hydrogeologic cross sections, respectively, in the vicinity of the landfill. A geologic Icross section through the landfill based on available information, is shown in Figure 4-10. The thickness of Pleistocene deposits and the upper glacial aquifer below the landfill is approximately I 250 to 300 feet. The North Fork glacial clay layer appears to lie approximately 150 feet below the surface of the landfill and is estimated to be approximately 40 feet thick below the site. Groundwater in the upper glacial aquifer (overlying the North Fork glacial clay) is under Iunconfined (water table) conditions. The water table lies approximately 40-45 feet below the surface of the site. The upper glacial aquifer constitutes the most important source of water for Inumerous small domestic private wells in the area. IWell S-32390, situated approximately in the middle of the North Fork, approximately 3,500 feet southwest of the landfill (see Figure 4-7), penetrates the Magothy aquifer at a depth of 356 Ifeet. Well S-33775, located 4.5 miles northeast of well S-32390, penetrates the Magothy IS12060 4-15 / \ I / a -------'4:: ''' .„t..•_'-'5 '.44' /_>5- ' ''''''''..-"--.'?.... ' . -,,,.•'''. . ''.'-.'' ..?';'..:7'.....'''''::.. Duck .--. -Pt: :�' .° \ \ �_ .:..;,H:.....7.L7... .-:-,.:... .,, ,,-60 , . .0.. +4-;./4i,..,,,:: ,,,.,/,\\ ,04,,,cs;.,..2.,:„.i. ,.• ' '.. 0 `...... .. : l: �. °i°°\ 56 SOUTHOLD, 6, r� 0 �\ i.. \ LANDFILL /,. \ tom•,.\ u • \ ,. �. �� ,t) •"•-• •• /eN o --•.!............. •• -, ,. v-0- - - ..,i.c � �, °•i S-88831= es,( /,, \,. ,, N. may' •,v,c,,, F t \1' S-71044 �� \ :::;: ' S-69761 (---\ • _ r lt //N- nl '.0 ;o\ . r ya d0q `/\.��0 �' �.`� \' `a .a ap 7. ,- •- -- . '..,),.\_. `----..--;,-': ' 4% \ //.\ >V • N• //' N . N.. N. • 4C 0 <L/ \;:\ S-71 170 � J' l'\ ,- o ;o • mss ' ' 47 _ CutD (-30 ; .''eu • /f \ Q, •1 2\ '- ...)8m.',.,„ / ,10 /•o \ • • / !' �`u �` \/, .,Sacr .. cart -•••. (.,.. \ o .,c.:::y. . •., 40 1 ' I* •• ' . .. I „\V; �• S-32390 ) .. J • \ `•• ��ti \ 1 \ Cu4c1►o • :, � —, / '•s� . �'. • \•,•\ •••� \.J \�'•:,+\� C /8-71279 o� I... . . _ . ,>\ . „�,;, Cutch gue., la '79` Q ♦\ a • p \+* L.•-• :: (.. ;.'is BM 32•.• . ) TO ' ' /• • • • ... •• /xi)/i•-• i.. ••/ c, .•••• ••"2.-"t ,.1. ‘ ...r., \ / .:.,•!. < - + I '• • �) : sum, \�-�\ \w �J/ �a _ \� I\ •' > c •.1_: t North Fork \ I \\• of w BM `44 / \ t7.‘•\ L'-'4‘-'”+1. �� ?O •• p'CoYntrY Club 4 o i o` \ / -.\--- -,Aa+tea 15 25 �) \l 'I NI� \O. Ii F. ,•., .. .,....,,,...„... •._.„1 IN ISCALE IN FEET 0 1000 2000 I SOURCE: USGS, MATTITUCK HILLS & SOUTHOLD QUADRANGLES NM MI TOWN OF SOUTHOLD SOUTHOLD LANDFILL CROSS SECTION LOCATIONS D e.rTINO FIGURE 4-7 CEI I A A' II j;_LL AL'JARS LA. SY".P (:S rT LA.) I S-63931 II 5,0- 5-32390 5-71170 Ti ' �Oa1���a SAND, coarse brown, �.� Oc 'Ci::`.. withgrit and gravel vo I MSL GO.j -eq bo ,p ).�d q SAND, fine to medium ' brown, with grit and II 'j SAND, coarse crown, off small gravel o, • witn gravel p • C7 , pp. A' SAND, layers of fine ).o rp•C l7:twn and brow!? silt, icp s o c �., `:,off p ,., with gravel SAND, fine to coarse SAND, _:ase to coarse -50- rD-c p: ravr , with grit and ;.:,ti Sorowm AND, ' k°�, -a gravel ::,;' o i ,,Ii: SAND, fine to medium ta7; .i ... ,}o' brown, with grit a SAND, fine craven D .•.' 1 1--- 'o` CLAY, solid and silty ...... C_g a ..4 ,-=-.=.' 5:77.-rush gray -100- �_ p _� .moi -:-.1 CLAY, scud t'ra'y 0 r� -- --=_ CLAY, solid brownish • E_ - gray CLAY, gray, with> coarse sand and gravel �r " M_ "_" SAND, very fine to W Io II.`S?ND, coarse brown, ?:ne brownish gray, J oc =Ei gravel !...:..;..4 with some clay, mica W -150- . II ` CL Y, very f'ine ,'town,'"' --_ ,-LAY r_v saucy and solid' _-_' so1`d brown al CLAW so gray _ L_i ., C_ •',..•...., SAND, fine to coarse I 4•SA D, layers of parse, ? brown, with grit, W.. v solid c..ey rp gravel, some clay SAND;•`ine to �di:�t =_- -200- ---:q. coarse,'witn gri? nd•. 4-34.'" lump clay " �• bop 'D, :parse brown, I O �a� --- /.AY. brownish gray PQ; SAND, coarse brown.,I/ :0 ``' s ocy, and, with o J vias grit and gravel r-;� some gravel �'Cqv a°; .17.-9 a I -250 ?o v' SAND, coarse brown, li` o with grit and gravel, II 1=o and some -lay u • No horizontal scale. 1 -300 -- SOURCE: SCDHS, 1982 TOWN OF SOUTHOLD ISOUTHOLD LANDFILL Mirka O GEOLOGIC CROSS SECTION I CO.,,,..,o IN VICINITY OF SITE FIGURE 4-8 I B B' I I . ..APPROX. R. 77 u V 7t „J Q LOCATION s a OF LANDFILL ^ CD N Cr,• I 140 4 I P P,;�• I 1n C. JOWf �▪. ,rte TO d° !•� •:. 01 / T 1-/ 6 ,,-.J�1 �. �O� .-+i Cuii� / I PCS r-crry\ 6.1.7. 11 s- .. •��. lk �` °a t .7f \ Cq 7.r i_v / �j k'o O uc.11,. 14 trn4 '' WO, I1�74 a...4 p WO, •1i.u...n. .a�+t.r ,C- 5^a:., ..a VII..wt 0 rv�• ..0 F+t.wt / .�0 �\ .�D� tr.wl• c h>1 Mwl �J Mwl i P•ci 11 1 sy i°'-',1 �J� • 401 r LAO am rh_O. ttc. .w rl+.w� • !!!"`...1 \ .. fAtO.W174 u cot 74.4, LMT 11,47 CI •YC .. SYt7. w.,�1 wII=/, .'��?f�inG 4.1•••:1./. 7nn1 • •U it It. Q .ASO, It,.n 4f I1i. �,�., tlt/ P t+.r. G 47414 — 1— 1 — [[— ,..- T - i W.111/1 74114 t lt/ _ _ 6rS r - MAT Baan 0.I.1°JfW1 -.1, i L QIr, 741114 In/. .1n T.t—,4. M In•-127• / .."1. V 1� 1 --- t/ -1 1.. ...,N1'.VO. Z I I O` � QAT. Y11t...Wt.? = '.1,.fit 1,. F • •may \T t ;lg sm1 ...�,74.i, F / • ri aw tnwl i1tLT.truLLT wm , F= ,_____._:.; .,..1 \ ..7411•.•..4(", 1 -710 1 u� Mw .r , l, = p_/r,44114 Taa.,410 b- n.uN •../Ilr / E: 7 • tr QIT, 11.1/"1 4I 4114 FC \ t / l � a/1R O.s� f r. 1W . ', =, .Ir.mica..An 14....;, 41474.mica If0• .lo. I . . 1 t I 7 1 t t 1 7 1 1 1D ll 12 I] 14 Lt 14 17 .1 13 II ISOURCE: SCDHS, 1982 TOWN OF SOUTHOLD I SOUTHOLD LANDFILL °iM'a .HYDRO,EOLOGIC_CROSS SECTION and IN .) C1Q.ULTii� 1 ENOINIIIPS _ IN VICINITY OF SITE FIGURE 4-9 1 at a depth of 205 feet according to a report prepared by Woodward-Clyde Consultants. Little detailed data are available at the present time on the vertical extent and water quality of the ' Magothy aquifer on the North Fork in the vicinity of the site. There are no production wells tapping the Magothy on the North Fork near the landfill; however, groundwater is believed to be salty in a large portion of this aquifer. The exact position and thickness of the zone of diffusion and the movement of the saltwater in the vicinity of the landfill site is not known. As shown in Figure 4-9, the freshwater-saltwater interface appears to occur at approximately -280 to -300 feet MSL below the landfill. Cores from well S-32390 located southwest of the site showed the interface to be at about -290 feet MSL. Thus, there may be some fresh water below the North Fork glacial clay layer (below -228 feet MSL) just south of the landfill at well S-71170, but the quantities would be extremely limited (if any) and any attempts to pump this water and use this portion of the glacial aquifer as a source of water supply would probably cause upconing of salt water from below. 4.2.2.1 - Soils The central part of the North Fork is covered with soils classified as Haven-Riverhead Association, and described as deep, nearly level to gently sloping, well-drained, medium textured and moderately coarse textured soils on outwash plains. Soils of the Carver-Plymouth-Riverhead Association are found on the northern shore of the North Fork and on the middle part of the south shore. These soils are deep, rolling, excessively drained and well-drained, coarse textured and moderately coarse textured soils on moraines. I In general, the North Fork soils are highly permeable and allow relatively rapid groundwater recharge. This condition is beneficial in terms of groundwater replenishment; however, it also provides fairly direct access of surface pollutants to the aquifer. A soil map of the existing and planned landfill site and vicinity is shown in Figure 4-11. The map shows that there are seven specific types of soils that exist on the site, namely, HaA-Haven Loam (0 to 2 percent slopes), HaB-Haven Loam (2 to 6 percent slopes), Ma-Made Land, PIA-Plymouth Loamy Sand (0 to 3 percent slopes), PIB-Plymouth Loamy Sand (3 to 8 ' percent slopes), PIC-Plymouth Loamy Sand (8 to 15 percent slopes and RdC-Riverhead Sandy Loam(8 to 15 percent slopes). Descriptions of each of these soils are as follows: I 1 S 12060 4-20 1. HaA-Haven Loam (0 to 2% slopes). These soils are deep, well drained and medium textured, and are mostly nearly level generally found on outwash plains. They were formed in a loamy or silty mantle over stratified coarse sand and gravel. The available moisture capacity in this soil is high to moderate. Natural fertility is low. Internal drainage is good, while permeability is moderate in the surface layer and subsoil and rapid or very rapid in the substratum. The hazard of erosion is slight. ' 2. HaB-Haven Loam (2 to 6% slope_s). These soils are deep, well drained and medium textured and is found on outwash plains and moraines, commonly along shallow, intermittent drainage channels. Slopes are short. They were formed in a loamy or silty ' mantle over stratified coarse sand and gravel. The hazard of erosion is moderate to slight. 3. Ma-Made Land. Made land includes areas that are mostly covered with pieces of concrete, bricks, trash, wire, metal and other nonsoil material. Some areas are on the surface of the original soil, others are in large holes dug for disposal purposes, and still others are in old gravel pits converted to this use. Included with this unit in mapping are sanitary landfills that have been excavated and subsequently filled with trash and garbage. After these areas are filled,they are covered with several feet of soil material. 4. PIA-Plymouth Loamy Sand (0 to 3% slopes). These soils are deep, excessively drained and coarse textured. They formed in a mantle of loamy sand over thick layers of stratified coarse sand and gravel. These nearly level soils are found on broad, gently sloping to level outwash plains. The available moisture content is low to very low. ' Internal drainage is good. Permeability is rapid. The hazard of erosion is slight. 5. PM-Plymouth Loamy Sand (3 to 8% slopes). These soils are deep, excessively drained and coarse textured. They are found on moraines and outwash plains. Slopes are undulating,or they are single along the sides of intermittent drainage ways. The hazard of erosion is slight. (See PIA soils for other soil properties.) 1 6. PIC-Plymouth Loamy Sand (8 to 15% slopes). These soils are deep, excessively drained and coarse textured. They are moderately sloping and found on moraines and outwash plains. The hazard of erosion is moderate to severe because of slope and the sandy texture of this soil. (See PIA soils for other soil properties.) 7. RdC-Riverhead Loamy Sand (8 to 15% slopes). These soils are deep, well drained and ' moderately coarse textured. They formed in a mantle of sandy loam or fine sandy loam over thick layers of coarse sand and gravel. These soils occur in narrow bands on outwash plains along the side slopes of deep intermittent drainage ways. Slopes are short. These soils have moderate to high available moisture capacity, internal drainage ' is good, and permeability is moderately rapid. The hazard of erosion is moderately severe. 4.2.3 Site Geology Stratigraphic logs were developed from information collected as part of the Part 360 and Phase II Hydrogeologic Investigation monitoring well drilling program in order to specifically ' define subsurface geology of the Southold landfill site. These boring logs can be found in Appendix F. 1 ' S 1206G 4-21 -7T OREGON R , OAD I 1111 .1111111 PP Hae NINNY I RdA \li 4 HaA I ill ",....,:•..,....;....1.•....•.:-..•.:....'..•.....:..:.-..‘.,...:....' ...-.--r-.•....-::-.....::•:...-. I I' Has 1 Z ':::WHaAX ::!..--....'.:1.:-.::::.-:....::::,--::::....::.--,.....:::::::.--..:::-.,:'.....-•.-:...•:::,„:::::',...•-•......:::...-::::....:.........!..•.....:......'..'......:'..'.., :.-,.-....,.'.'...-'.......1......•....',:'::',.:.'-:.';',...,::.\''.;:::'...,!::::::'..,:.::::-.....\::,...:':::....,:-...'....::',..::-...'.!....,:.i.:.:::!....:,....::......:::,...,.:::...-....:,..........1......•••••....!..:.,.......:.::::::...........\::...1::.:.....:.7'....... Q J #! O I r D Z H a A OI 0- la SOUTHOLD ` ''``'`` ILANDFILL HaA t. ill....:,"..'.........,....... 403 I I -- -44-;:--'-- PIe LEGEND ROAD I NORTH CpE Carver and Plymouth sands, 15 to 35 percent slopes HaA Haven loam, 0 to 2 percent slopes HaB Haven loam, 2 to 6 percent slopes Ma Made land PIA Plymouth loamy sand, 0 to 3 percent slopes I SCALE IN FEET PIB Plymouth loamy sand, 3 to 8 percent slopes PIC Plymouth loamy sand, 8 to 15 percent slopes 0 200 500 RdA Riverhead sandy loam, 0 to 3 percent slopes me ., ..�� RdB Riverhead sandy loam, 3 to 8 percent slopes RdC Riverhead sandy loam, 8 to 15 percent slopes ISOURCE: SOIL CONSERVATION SERVICE TOWN OF SOUTHOLD I SOUTHOLD LANDFILL D�rhka "i'd SOIL MAP � � FIGURE 4-II ' Two cross sections were constructed for the site based on data obtained during this investigation. The location of the cross sections are shown in Figure 4-12. Cross section A-A' incorporates monitoring well clusters MW-1, MW-7, MW-3 and MW-5 and is shown in Figure 4-13. Cross section B-B' runs perpendicular to cross section A-A' and includes monitoring well clusters MW-6,MW-2 and MW-3. Cross section B-B' is illustrated in Figure 4-14. The lowest geologic unit of the site consisted of gray-brown silty clay and was encountered at an average depth of approximately 130 feet below ground surface at all locations drilled. Overlying the clay is a unit composed of medium to coarse sand and gravel with an average ' thickness of approximately 15 feet, except for cluster locations MW-1 and MW-4 (not shown in the cross sections [see Appendix F for boring logs]), where the clay was overlain by a roughly Ii 0-foot thick transitional zone consisting of fine sand with thin intermittent layers of clays and silts. At monitoring well cluster locations MW-6 and MW-7, the clay was overlain by the next most prevalent stratigraphic unit composed of medium to fine sand with traces of gravel and mica. At the MW-1 cluster, this unit was not vertically continuous but was interrupted by a layer of medium to coarse sand and gravel. This same condition occurred at the MW-6 cluster location. ' This medium to fine sand unit is approximately 50 to 60 feet in thickness. Overlying this unit and extending to the surface is medium to coarse sand and gravel, similar to that found overlying the clay. Some isolated lenses of brown silty fine sand were encountered within this layer at well cluster MW-1. Silty sands were also encountered within this unit in isolated lenses at cluster MW-6. Throughout drilling operations, isolated pockets of reddish brown to orange-brown (iron-stained) sand were encountered indicating a high natural concentration of iron bearing minerals. t4.2.3.1 -Soil Gas Survey Results ' The results of the soil gas survey indicate a close correlation between areas of elevated MicroTip readings and high lower explosive limits (LELs). In general, readings were relatively elevated in fill areas and the area of former land clearing debris and automobile disposal areas. Readings taken from the bottom surface of the former scavenger waste lagoons were very low ' compared with those obtained from the landfill for both VOCs and explosive gas. No significant anomalies were encountered. Results of the soil gas survey were submitted to NYSDEC on June 20, 1991. No additional soil boring investigations were recommended by NYSDEC at that ' time. Two maps were generated showing the results of the MicroTip and percent LEL measurements and are included in Appendix C. I S 1206c 4-23 . _ 1 \ il l \� .7 _ ;'-J ...,. ....., IMW.-4Dr V A' it dill\ 0 t MW-5D A, 0 / i 1I -, r------, , \A\G i / / 1 I I FORMERMINING / It i J l i i ,‹..- / C i // I 1 / 2 i I // I X 1I IIMW-2D //_di) 1 --7 .....-- ....... , \.-- , FE:— z . .., ---- ,\ \ \ 4 1 ,, __,e..,. , \ 1 , / \ \ I MW-6D // 1 \ I o /// ACTIVE MW-3D B' NDFIL 5 I I`I // i \AREA L 1 !6) I 1 w I �( mol- t o I l \ .� G L ... ._. �„_ ... i \ \ ... . r\ COMPOST \ J / �'- _ // \ AREA /7-1/ 1 / I / I -- ,7 � / �- / I / / \ MW-7D 1 1 I / OVERHEAD / // / ELECTRIC =_= LINES I // r -� � � I // \ 1.----- ---------------------- FORMER LAND CLEARING ----- DEBRIS -.DEBRIS AND AUTOMOBILE (I -2-----DISPOSAL AREA . J a _ J� fl Alljkti.._ ..... c:::1 o O I I 1 \ / p COLLECTION �- WASTE OIL 7 i CENTER STORAGE STORAGE GARAGE ( c C ❑ /1//0 II au STATION l / I 11 I / of A / Q _ � 48) 1 i (COUNTY ROAD Li] r ❑ MW-1D 0 NORTH ROAD ------------n.--i 1 11 LEGEND I I DESIGNATION DESCRIPTION • MW-4D MONITORING WELL LOCATION DIRECTORY: C:\1027 FILE NAME: LOCSEC 0 400 800 DATE: SEPT 1991 MN INN IIIIIIIIIMIIINIIIIIIIMM SCALE: 1=1 I♦ MIMI DESIGNER: L.V.G. TOWN OF SOUTHOLD Dvirka SOUTHOLD LANDFILL db) and tiiucci LOCATION OF LANDFILL SITE CROSS SECTIONS CONSULTING ENGINEERS FIGURE 4-12 100 - I LEGEND PROPERTY MW-5D LINE _ - 75 - — ' _ 7777_-_-�`- -_- PRIVATE PRIVATE SCALE PROPERTY 77.. •••• 7777-• •••• 77•77_7777_--_ HOUSEzZiri ROAD HOUSE LINE _-_ _-7777 •___-• • •-• • • - = = FENCE-�_ 7777 - 7777- - 77777._- MED-COARSE 50 - MW-1D MW-7D—} MW-3D I: - - - 7.. . . . . . . . . . . . . . . . . . . . . . . ._- GRAVEL /.'. 7777_ - -7777--77777777--77777777--7777_-7777 - 7777- ---7777--7777 - 7777- 7777- - - 7777- 77 77-7777--7777 7777- - - - - - - 7777- - �. /. • 7777---7777-7777_-7777 - 7777--_- . . . .: ::: :: : 7777 25 -�--� - - - - - - - - - 7777-- - - _ _ • - - _ 77- 77-7777 =_=_= _' : /% - -_-_7_7_7_7_-77777777777777777777_-7777777777777777--7777--7777 --77 77--7777-. 77_ _- -7777777777777777_7 . 77 - 7777- - 7777- - - 77 . 77 . . . MED-F1NE SAND -• - - - - - - - - - - - - - 7777- - 7777- - - - - - 7777- - - - 77 77- 7777-_- .. - - - - • - - - • -. :•:•..� TR. GRAVEL -•____• ___-•7777-7777____7___7_77 -_- - - - _7777 _7777-77 7777_ 77 _ 7777-7777_-777777777777777777777777_- . - AND MICA - - - - - - - - - - - - - - - - - - - - - - - - 77 . 77 • • • • : 1- W _.1 •77_:77•-•7777_.77-77 77-_-- •--•77----77-7777-- ----77-77-77- • :- •-- : : • : : : : : : • • : • : • : W > 0 - - - - - 77- - - - • • 77 - • - . . .•.• • •.• . • • • •••••:•••:•••••:•••••• - - - - - .-. - -• ' - - - - - - . . • -.--•-•-•-•-•-•-•- 1.4- - - - - - - - - - - 77 - - - - - - - - 77 ✓ _._.-.-. 7777 __._._._._._._ • .W •7777_ - 7777777777777777777777 - 777 - 777 - 77 . - . - . . . . . . . . 77 _ 777777777777777777777777 _ _ _ 77 _ _ 77 - . 77 . - 77 -- 7777- -7777 " •7•—J — — — — — — — — — — — — — — — — — — — — — — - 7. 77 _ 77 77•——77.7 7777 _ 777777 - 77 77 _ - —— — —-- : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : : / BROWN SILTYZ ff O (n 7777 - 7777-_- . 7777-- . ::• ::�: : : . : : : :::: FINE SAND �= Z 7777 - . - : : : : :•:•:•:•:•:•:•:•:•:-:•:•:•:•:•:•. :•. •:•:• Q -I -50 - •. .% : : : : . 7777 - W v _ • 7777_-_ - - - - - : : ::: :::: :.;.:. .: :.:.:.:.:.:.:.:.:.:.:.:.;. . . . . . . . . . . _ . . .'. . .'. . - . . . .'. . . . . . . . . BROWN GREY : : : . . : . :/. : : : : : : : : : : : :% : : : : : : : : : _ 7777_ - 7777_-- . - . - . - . - . - . - . - . - . - _ -� CLAY 7777- - - •- -75 �, = '.- ' : : : : : : : : : : : : : : : : : : : : : : : - 7777- _ = �� • • 7777 -_ .7. 77-7777.. ..9 07.r.,,,..7 7C7.4-‘,7 . __...__.___._- � :::. :.:.:7777 _o___.___o___(-D___.___.___._ O - O - tr- a1 T -100 - __< O•-a.-a."_ _ • - ��. - ?-•0--a--Cr •- . - �� FINE SAND WITH CLAY STREAKS -125 1 1 a • Q 0 200 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600 2800 3000 3200 •:•:•:•.•.•.•••.•.7.7.•.•.•.•.••: N SW NE W In DISTANCE IN FEET FINE SAND N O o TOWN OF SOUTHOLD Dvirka SOUTHOLD LANDFILL Q9) Bartilucci GEOLOGIC CROSS-SECTION A A' CONSULTING ENGINEERS FIGURE 4- 13 1 60 1 L_- I I MW-6D - - LEGEND _ 77 . . . . MW-3D ��r• '�- - -_. _ -' -- - --_ _______________ •__ •_•_ _. _77_77_. • . . -_ __ •-• • • • • - _ • _ - _ - — _- _- -_-_ - MED-COARSE • :: : - - - - - - - — - - 77 77 - - - •- - •- — - - - - - - - - - - --_ —• SAND AND - - - - - - - - - MW-2D - - - - - - - - - - - - - GRAVEL 7. ----- ----- --- --------- - ---------- . - - - - •- . -_-_-_-_-_-_-_=r- MED-FINE SAND ----------------------: .- . - - - - . - TR. GRAVEL F- - - - ,✓ AND MICA Li __J -20 • : 7777 . : : : : : : : : : : : : . :///. . Q : : : : : 7 : : 777 . . . .. ... • : :'✓ • • • •• / MED-COARSE O -40 . : . . : • . : 7 : : 7 7 7 . : : : : :•: . . . . . : : •.-. GRAVEL ILI v -60 - - - - - - - ---- -_-_-_-_-_-_-_-_ _ ' / - - - - - - - - . . . . . . . . . . . 77 . . . . . . . - - - - - - - - - - - BROWN • . GREY- - - - - - - .- - ��r_ �R � = 7--. — — — —. . - - - ,- - . - - - - . :- — • ��r _ � —80 �... .. .. . ..........•........... .. . .� ��r '•••" "'••""•""•••''• , ••" "••...••• - . . 7777. 7777 ... - ter -100 -- I I 1 MED-COARSE SAND AND GRAVEL WITH BLACK SILT -120 _' I I I I - - i i m N 0 100 200 300 400 500 600 700 800 900 1000 1100 1200 1300 1400 1500 W SW NE cn O • N DISTANCE IN FEET MED-FINE SAND U TOWN OF SOUTHOLD dland ka SOUTHOLD LANDFILL Q9) gtiiucc GEOLOGIC CROSS-SECTION B - B' FIGURE 4-14 CONSULTING ENGINEERS 1. 1 4.2.3.2 - Geophysical Survey Results ' The results of the downhole geophysical survey conducted during this investigation indicate that, based on the natural gamma ray logs, bedding dips gently from north to south. This slope corresponds closely with the general dip of the clay surface underlying the landfill. ' The results of the geophysical investigation also indicate that the conductivity measured for the groundwater in the two wells located upgradient of the landfill (MW-1 and MW-7) and the wells located downgradient of the former scavenger waste lagoons (MW-6), was distinctly different from the four wells located downgradient of the landfill (MW-2, MW-3, MW-4 and MW-5). The conductivity in monitoring wells MW-2 and MW-3 was elevated starting at the ' water table, whereas the conductivity of wells MW-4 and MW-5 located further north was elevated starting at a depth of 40 feet below the water table. In all cases, these anomalies seem to extend down to the deep well screening zone, just above the clay surface. This data infers that a conductive fluid with a density greater than water is emanating from the landfill. The data also ' indicates that leachate present in this plume should be detected in the deep monitoring wells located downgradient of the landfill. The geophysical report is included in Appendix D. ' 4.2.3.3 -Site Topography In general, the natural topography of the landfill site slopes gently upward in a northward direction, from a low of approximately 45 feet (MSL) near County Road 48 to a high of approximately 66 feet (MSL) along the northern boundary of the site near monitoring well cluster MW-5. This natural gradual slope has been interrupted by both the Southold landfill in the center of the site and the area north of the landfill which has been excavated to an elevation of approximately 10 feet(MSL). 4.3 Groundwater Hydrogeology ' 4.3.1 Regional Hydrogeology The primary groundwater aquifer on the North Fork is the upper glacial or water table aquifer. The saturated thickness of this aquifer ranges from approximately 50 to 200 feet. Most wells drawing freshwater from these permeable deposits are between 10 and 100 feet deep, and extend about 10 to 35 feet below MSL. ' S12060 4-27 I IUpper glacial regional groundwater flow in the Town of Southold in the vicinity of the existing and planned Southold landfill is shown in Figure 4-15. Groundwater elevations are Ihighest near the center of the North Fork and lowest near the shoreline. The horizontal component to groundwater flow is shown in the regional water table contour map. As this map indicates, Iregional horizontal flow is toward the north-northwest in the vicinity of the landfill. I As shown in Figure 4-15, regional groundwater flow is separated into north and south groundwater flow regimes by the groundwater divide that runs generally northeast to southwest across generally the center of the North Fork. Flow moves outward from the central groundwater Idivide toward either shoreline (northward toward Long Island Sound and southward toward Great Peconic Bay and Little Peconic Bay). Near the center of the divide, downward, nearly vertical Iflow and recharge of groundwater occurs (with velocities of approximately 0.1 ft./day). Moving north or south away from the divide, shallow groundwater flow becomes increasingly horizontal I (with velocities of 0.2 to 0.4 ft./day) until groundwater discharge occurs near the shorelines. Within approximately 1/4 mile of the shoreline, the vertical component of flow is upward as Igroundwater is influenced by the boundary effects of the saltwater interface and is discharged via seepage and underflow to surface waters. 1 4.3.2 Local Hydrogeology IBased upon previous information, groundwater flow within the upper glacial aquifer, in the area of the existing and planned landfill site, is generally in a north-northwesterly direction. This I flow continues in this direction until it reaches the Long Island Sound. Direction of groundwater flow may be influenced by local well withdrawals and proximity to the North Fork groundwater divide. The average hydraulic conductivity of the glacial aquifer is approximately 1,950 gallons Iper day per square foot (gpd/sf) and transmissivity is approximately 300,000 gpd/ft. IAs previously discussed in Section 3.2.1, within the upper glacial aquifer is an extensive clay layer referred to as the North Fork glacial clay (the upper surface of which varies from 100 to 1 150 feet below sea level), and separating the Magothy from the underlying Lloyd aquifer is a semipermeable layer of Raritan clay which somewhat inhibits the vertical flow of water from the I Magothy to the Lloyd aquifer. Figure 4-16 shows the groundwater flow patterns beneath the landfill and surrounding area. IThe Magothy (in general) and Lloyd aquifers in this area are not usable for potable water purposes because of saline conditions. IS 12o6c 4-28 I 06io15 I SOUND LONG ISLAND O 53338 1 11.A `Is 041- n 47233 /� 016780 A / \ °53326 ' ......,_____ __...,-\ � / 053335 I 3'),. .i_.-------7;.,065606 O 0 6524 -J\ , I as' APPROXIMATE LOCATION OF "oSOUTHOLD LANDFILL SITE 5 71045 / I O 53329 0 53322 450 3324 6560 1 / 010390 41t 05333," LITTLE PECONIC III / 0 53327 O / 0 333 BAY IA O 4 39669 r-) . , d'CoP . \,535370 Iiiir- q I GREAT PECONIC BAY I ILEGEND APPROXIMATE LOCATION OF GROUND WATER DIVE 1 0 71045 OBSERVATION WELL AND WELL NUMBER X51 WATER TABLE CONTOUR LINE INTERVAL I (DATUM IS MEAN SEA LEVEL) 441/1 APPROXIMATE DIRECTION OF GROUND WATER FLOW I 0 0.5 I SOURCE: SCDHS,MARCH 1989 SCALE: MILE TOWN OF SOUTHOLD 1 SOUTHOLD LANDFILL • ba11dc. REGIONAL WATER TABLE ....�,..r CONTOUR MAP FIGURE -I I . 4 5 INN EN NI N E 11111 1 1 1011 RN 11111 N 1 EN 1 N 1 M M too 1 I I 1 OREGON RD AT. 27 LINA RT. 28 SO APPROXIMATE LOCATION .,,V L: .�0 7NY OF SOUTHOLD LANDFILL Li nmA �ti ti NN 11 A e0 NN AA ';;!4' v 7, N N N q O.NN 40 AA :la- .... curcuucu[ Nr4 HARBOR i`— nn NN 10 L.2.6. 2.10' 2.52' 2,96' ).5I' ).BS' _3.70' _-2.86' NICKKAN NCK'IB II 1.6� Igil:K NECK NyL an-1 I \ �� / I I I .. .5 -- / I I ,i 1 1 .2 \ 1 I / ) I I .4 `. I vl t`,.s —, i 1 5 i 1.o` / I I 1• ± 1.1 `/ • /i I ' I 1 \� 1.0 _ ' I.0 F: -20. �' / I• I • 1I I I 7 I l / I : 1.5 I • 1 1 • i I I 1 1 1.5\ \ ` 2 Z �� 2.0 715 )10 l.s 12'B) /3.5 .0 ,/ -40 I 1 1 1 • l I + 1 �( ,l \ / .05 1 1 .15 1 ..fes' 1 ---.—ti„ I .25 , \ • ` � J 50 r\i/ 2"S I I ���_ . 11 1 I I 1 1 \\ / w I I 1 I / / I \ \ \. / 1 \ 1 / / 1 \ \ ,, ` 7 -SO \. // I 1 1\ / • I 1 \ \ / �./ • 1 I .� I \ ;ALT WAIEA 4040C22 . I 1 1 I is \ o0 • II 1 _' _ _ _ 7 �- - ----1— - - - - 7 - L - - _�._, — -- 1 1 \\ 7 -120 CIA! BOUNDARY ` \ I 1 HALT WATER N[DGIf '--• Arc res. Vulocicier (ft/Jay) for the P.:riod 10/81-2/82. ! 1� 1 • -lI0 • 11,-ad Ree.urement Point (S)-Shellow Well / — — 7 -- _ -- Equipotentlel Line (ft) (D)-Deep Wrll -160 0 1 3 3 4 s 4 ) $ 9 10 11 12 11 14 15 15 17 lI 14 20 SOURCE: SCDHS, 1982 TOWN OF SOUTHOLD SOUTHOLD LANDFILL L � GROUND WATER FLOW PATTERNS 0 Berliu.cci IN VICINITY OF SITE FIGURE 4-16 1 ' Groundwater elevation data was obtained from the SCDHS for on-site well S-69761 and two nearby off-site wells (S-53326 and S-65606). The locations of these monitoring wells are shown in Figure 4-17. This data reflects water table elevations of June 1988 which indicates that groundwater flow in the upper glacial aquifer is in a north-northwest flow direction, as illustrated in the figure, which is consistent with the regionally defined groundwater flow direction. This groundwater elevation data was used for the purposes of selection of monitoring well locations for 111the hydrogeologic investigation. The Southold landfill is located in Hydrogeologic Zone IV, as defined in the Long Island ' Waste Treatment ('208') Management Plan. Zone IV is characterized by generally shallow, horizontal groundwater flow and groundwater discharge near the shorelines. Zone IV was described in the '208' study as an area that has local water quality problems caused by agricultural practices, but has potential for groundwater development. Figure 4-18 shows the landfill site to be located outside of the Special Groundwater Protection Area (primarily deep flow recharge area) defined for the Town of Southold. Thus, any contaminant releases from the existing landfill, or extremely unlikely releases from the planned landfill which would be constructed with double liners and leachate detection/collection systems ' according to NYSDEC Part 360 requirements, would have an insignificant impact on the water supply of the Town. 4.3.3 Sitedro eolo H3' g gY As previously discussed, the principal aquifer of interest in the study area is the upper glacial aquifer. Intersecting the upper glacial aquifer is the North Fork glacial clay which represents a laterally continuous flow boundary underlying the Southold landfill. Therefore, the Part 360 and Phase II Hydrogeologic Investigation was focused primarily on that portion of the upper glacial aquifer overlying the North Fork glacial clay. ' 4.3.3.1 - Permeability ' Slug tests were performed at eight monitoring wells consisting of shallow and deep wells located at clusters MW-1, MW-2, MW-5 and MW-7. The results of the slug test analysis are shown in Table 4-3. Hydraulic conductivities within the water table wells were relatively high and ranged in value from 2.2 x 104 to 8.6 x 10-2 cm/sec. The average hydraulic conductivities at the deep wells were higher and generally more uniform, and ranged from 1.8 x 10-3 to 3.1 x 10-2 ' S 12066 4-31 i , / / rs/ ' e �r9 1°'''* S-53328(3.16,) ''''"; ° x, ,:),.....J . ' -..'...N"--, : li Duck.Pond . \ '\ y ,,; G a '•-•,./.---." (T P Intim _.. r-dp .,+� �\ o\/ hh S-65608(4.81 ) 7. •), . •‘, �1. ��% iV .••...,/. se SOUTHOLD:- ba >�y�. �s ., © t .\ T44. .. .._ N 0 . I f. .� .� LANDFILL �., ,/' ` ,\ oii N. ..\ '1.o \ \o j o3 aa`.. `O S� Gl .4—, • Isae ° +y �, V o /' '', ,-,1e°----\ -, \ �o° 1�4/ - INFERRED DIRECTION OF \ 1 J, Nom' ., o� 'ti :GROUND WATER FLOW • P U f \\GPp� JCutcDogue rSta� ' 1-.7°-\ \.,\ : `�;�/ 8 • rte • ,° \ • \ Sawed tart\ � �/ o \ :).• \,\ ° \ / ` 0' ( '\7 \- ;-•S:\:O ' \ -. Cuticl,0 e •. ._ \).. : .• "� sh /,,,,,, .4 P, , /....1.:_,/ \- I \:. ; \ . ��Ye' 44 �' �' ` \ k ` it ' � 1 »\O �. 0 • '''r4*, j--\ -^ , T '- V . \ ° ' ',13, (( BM 3 2, - ' —10 c+e \ --1(c-.--'0, r \ s �`` \J.lr-„ \\ '<� ' .. Yi North For �� ! �•F a \' O SM /k ' \ , \ ,__\` a e\� _ .r ?ci , 1i7 0 Country Club 4// 1 \\ ______\....(- ( I NOTE: WATER TABLE ELEVATIONS OBTAINED IN JUNE, 1988 SCALE IN FEET 0 1000 2000 ' SOURCE: H2M, 1988 an ..�..• TOWN OF SOUTHOLD I SOUTHOLD LANDFILL ovr►ice GROUND WATER FLOW DIRECTION O) emir ,«t IN VICINITY OF SITE FIGURE 4-17 I 111 , 7-____ 4441 V SOUTHOLD LANDFILL °�o .,t.,„„...,„...,/ t 1 ,z _,! r ci ro Al 1 • s' . Py N o L D Air .... 1 , .. �r VSCHIA. _____------- --- • ..-- i .10 , :7. X:0‘141 •' ' ' .. _ .....I �� ; , ...up,' ilk LITTLE j PECON I C BAY I ' 7'''' s , IV I .. / �I$LA9M®190 i. 4MWR+ Mr N I./ GREAT \� PECONIC I \ 11 _ _iBAY V\ _ _ I SPECIAL GROUND WATER PROTECTION AREA I I 0 8000 18000 1 SOURCE: LIRPB,1990 SCALE IN FEET TOWN OF SOUTHOLD I SOUTHOLD LANDFILL SPECIAL GROUND WATER PROTECTION Qç) AREAS IN THE TOWN OF SOUTHHOLD i *•���� FfGURE 4-18 I ITable 4-3 SLUG TEST RESULTS IRising Head Falling Head Average Test Hydraulic Test Hydraulic Hydraulic I Conductivity (K) Conductivity(K) Conductivity (K) Monitoring Well (cm/s) (cm/s) (cm/s) 1 Shallow Wells: MW-1S 2.2x 10-4 -- 2.2x 10-4 IMW-2S 3.8 x 10-2 -- 3.8 x 10-2 MW-5S 2.6 x 10-4 -- 2.6 x 10-4 IMW-7S 8.6 x 10-2 -- 8.6 x 10-2 IDeep Wells: MW-1D 2.5x103 1.1x103 1.8x103 MW-2D 4.8 x 10-2 1.3 x 10-2 3.1 x 1W2 MW-5D 1.1 x 10-2 1.3 x 10-2 1.2 x 10-2 1 MW-7D 3.4 x 10-2 1.2 x 10-2 2.3 x 10-2 I I I I 1 I Falling head tests were not performed in the shallow wells since the screen intercepted the water I table. Performing a test of this type under these conditions would measure the hydraulic conductivity above the water table within the unsaturated zone and would not be representative of formation permeability. I I s 12060 4-34 I Icm/sec. The lower hydraulic conductivity values found in both MW-1S and MW-1D are probably due to the presence of silty sands found within the screen zones. Appendix K contains graphs and IIIcalculations used to derive hydraulic conductivities for each slug test conducted. 4.3.3.2 - Groundwater Flow w Patterns I 4.3.3.2.1 - Shallow Water Table I Measurements of groundwater elevations in all monitoring wells were obtained on IJuly 22, 1991, and are presented in Table 4-4. Based on these data, a water table groundwater contour map was prepared and is illustrated in Figure 4-19. The water table contour map indicates a general north to northwesterly flow of groundwater through the site confirming previous regional and local findings. The groundwater gradient across Ithe site varies from 7.8 x 10-5 feet of head loss per foot of horizontal distance to 3.6 x 10-4 foot of head loss per foot of horizontal distance. The shallower gradient is found between monitoring Iwell MW-IS and monitoring well MW-7S. The gradient becomes steeper north of MW-7S. Such flat hydraulic gradients are expected in areas which are located relatively close to a hydraulic 111 divide believed to exist south of the Southold landfill. 4.3.3.2.2 - Deep Groundwater Based on the water level measurements obtained from the deep monitoring wells on IJuly 22, 1991, a potentiometric surface map was constructed and is presented in Figure 4-20. Based on this data, it appears that groundwater along the clay interface flows in the same direction I (north to northwesterly) and under approximately the same hydraulic gradient (2.3 x 104 foot of head loss per foot of horizontal distance) as the shallow groundwater at the site. The difference in hydraulic head between each shallow and deep well at each well cluster I was calculated in order to determine the vertical gradient at each location, the results of which are presented in Table 4-5. This data indicates that a very slight downward gradient exists at the site. The slight upward gradient found at well cluster MW-3 and MW-6 is too small to be considered Isignificant and may be the result of a local topographic high in the clay surface between these two monitoring wells which may be acting to divert groundwater flowing northward along the clay I IS 12060 4-35 I ITable 4-4 GROUNDWATER ELEVATIONS JULY 22, 1991 I (measured in feet) I Depth to Well Elevation Groundwater (MSL)Top of Groundwater Monitoring Well (from top of riser) Riser Elevation(MSL) IMW-1S 38.84 44.38 5.54 MW-1D 38.68 44.39 5.71 IMW-2S 12.85 18.15 5.30 MW-2D 11.85 17.23 5.38 I MW-3S 43.05 48.50 5.45 MW-3D 43.16 48.63 5.47 I MW-4S 58.81 63.60 4.79 MW-4D 58.57 63.76 5.06 MW-5S 63.41 68.44 5.03 IMW-5D 62.81 67.89 5.08 MW-6S 47.01 52.50 5.49 IMW-6D 47.16 52.59 5.43 MW-7S 42.54 48.07 5.53 I MW-7D 41.48 47.03 5.55 S-697611 40.32 45.69 5.37 S-689162 47.85 53.23 5.38 I I I I I1Corresponds to a shallow water table well. 2Corresponds to a deep clay interface well. IIS 1206c 4-36 1 \ / z.„ Re i — — — ,..,„ ( I 47r, 4S dil\ - U 47 II i II 4.8 t • MW-5S Q ❑ 1.9 I I 1 ' I� FORMER MINING I I _ ♦ AREA \\ 3.0 SII ♦ ' 4.9 r -- -11 ......„___. 1 • ED 1 // 5.0 I s., // ?<I J mo,/ MW-2S mo,- - - --- --"---.---/--/----) -- , 1 --- i ,------ , - \ m \ I m Io \ \ ' 3 MW-6S , / 5.2 / \ \ ACTIVE MW 1 // LANDFILL w I I\ AREA z , I1i ,j /g / L 1 - .... , I , , .....___ __ , _ _..-- (----) - - COMPOST J - --���,. 1 \ AREA / JI 1 _ Z / � / / . . __-___-</. \ �' MW-7•I I / / 7� \ \ /_ .\ • I / __ OVERHEAD EL �/ I --- ECTRIC \ LINES I /7) r____ _____ ___ ___ ' J %----- - ---- .„, i-----------__=....._._._________ , 1 1 FORMER LAND CLEARING` — r DEBRIS AND AUTOMOBILE 1 DISPOSAL AREA n ?- i'o 1 jI :"---- -. 1M- ii It \I 44 /� �r I � I 11 S-69761 �'�. o a I -- III \ L/ COLLECTION WASTE OIL STORAGE o 7 [___C:i pCENTER STORAGE GARAGE ISlC0III I 111112 WEIGHING ISTATION 0 ,2_,) 1 ,R21 ii II 10 Cf1 MWii S� 4 __..... r (COUNN ROAD 48 _________j:.___J:\ ROAD NOR' LEGEND �] ' I I ',it DESIGNATION DESCRIPTION iI ` • MONITORING WELL LOCATION MW-4S 5.0 GROUNDWATER ELEVATION CONTOUR GROUNDWATER FLOW DIRECTION DIRECTORY: C:\1027 FILE NAME: WTCMAP 0 400 800 DATE: SEPT 1991 MINI ME IIIIIIIIIIIIIIIIIIII SCALE: 1=1 IMM MN DESIGNER: L.V.G. TOWN OF SOUTHOLD Dvirka SOUTHOLD LANDFILL CIO Badtilucci WATER TABLE CONTOUR MAP CONSULTING ENGINEERS FIGURE 4-19 ----— IkN / I \ .-. --'\ -c..\--- A, ( I MW-4D ' El - \L1-1._.\\ 5.1 MW-5D 1 • II 1 - ❑ ir . ,----- 1 ____ 1 OT ..• FORMER MINING 5.2 III 1 AREA - - . III ��� I 0 I I // I53 1 8 I /7 I x I I . I / W-2D — __ _ �� / � _.._ _--� /0 I — — t5.4 I ni F.---- z 7 \ \ 1 S • /S-68916 \ \ I I MW-6D // 1 \ MW-3D ACTIVE • EK / I r\\LAAREA L Ip, /// 1i \ I / Ig o � I 1 \� I C II / 5.5 ' J - i.-\ .... ••••••••...........• ..., .... / COMPOST J 7 I -i \ AREA /1/ MW-7D I - -_ \ OVERHEAD / / ELECTRIC I LINES - .1---------------------------- I -` ,. 5.6 / • ... FORMER LAND CLEARING '� DEBRIS AND AUTOMOBILE n DISPOSAL AREA — nu I � ! f "F [111 \ , I �i I ---- ----) ---------------------------'-' -j 1 / Ito 111 \\ '�!_ o �� i I 1 1 v/ COLLECTION WASTE OIL 0 7 �� a l p CENTER STORAGE GARAGESTORAGE o II II Mr WEIGHING STATION 1 mil II riCO r n ROAD 48) ❑ ❑ � JMWC -1 D 400111111 ROAD NDR� LEGEND ----------) S) --) 0 ' 11 DESIGNATION DESCRIPTION II MW4D MONITORING WELL LOCATION 5.1 GROUNDWATER ELEVATION CONTOUR -= GROUNDWATER FLOW DIRECTION DIRECTORY: C:\1027 0 400 800 FILE NAME: PSURMAP DATE: SEPT 1991 • IMII NM 1.1111.11111=1111M1111 SCALE: 1=1 MN NM DESIGNER: LV.G. TOWN OF SOUTHOLD Dvirka SOUTHOLD LANDFILL Oand tiIucci POTENTIOMETRIC SURFACE MAP CONSULTING ENGINEERS FIGURE 4-20 I Table 4-5 I SOUTHOLD LANDFILL HYDROGEOLOGIC INVESTIGATION VERTICAL HYDRAULIC GRADIENTS IAT EACH WELL CLUSTER I Difference Between Shallow and Deep Well Direction of Vertical Well Ouster Number Elevations (ft.) Hydraulic Gradient IMW-1 0.16 Downward MW-2 1.00 Downward IMW-3 -0.11 Upward IMW-4 0.24 Downward MW-5 0.60 Downward IMW-6 -0.15 Upward MW-7 1.06 Downward I I I I I I I I I I S12066 4-39 I Iinterface toward well clusters MW-3 and MW-6. A three-dimensional representation of the clay surface was created based on data obtained during the drilling program and is presented in IFigure 4-21. 1 4.4 Surface Water I As discussed in Section 3.1.3, Long Island Sound is the closest surface water body, and is located approximately 3,500 feet north of the Southold landfill. The closest freshwater body, East Creek, lies approximately 1.3 miles to the southeast of the landfill site. No surface water bodies Iare located within or immediately adjacent to the landfill. Since groundwater in the vicinity of the landfill flows north-northwesterly, and there are no other surface water bodies located between the Ilandfill and Long Island Sound,no surface water bodies should be impacted by the landfill. 4.5 Sampling Program Results I4.5.1 Introduction IThe purpose of this section of the Part 360 and Phase II Hydrogeologic Investigation Report is to present the analytical results of samples collected from monitoring wells installed during this I investigation. The goal of the subsurface sampling program is to determine whether or not there has been a release of hazardous chemicals from the landfill into either soil or groundwater or both. I4.5.2 Data Validation Results IAll sample data was evaluated to ensure that analyses were performed according to the 1989 NYSDEC ASP. The semivolatile organic fraction analyzed was not in complete compliance with Ithe ASP Quality Control and Quality Assurance requirements due to low surrogate recoveries for selected compounds and/or from exceeding holding time requirements. Data is estimated but usable. All other organic and inorganic fractions analyzed yielded acceptable data. Completed I review sheets used to evaluate both the organic and inorganic data can be found in Appendix B. Data validation summaries and data user advisory tables can also be found in Appendix B. I 4.5.3 Soil Sampling p g I4.5.3.1 - Organic Sampling Results The volatile organic compounds (VOCs) detected in soil sample MW-6A are presented in ITable 4-6. Method 601/602 volatile results are presented in Table 4-7. The MW-6A soil sample was collected from a depth of 11-13 feet due to slightly elevated MicroTip/total organic I Is 12066 4-40 N WE MW-5D S VIEW DIRECTION MW-2D "x/1111 1....1111,-.,..0.01..... ��► MW-3D li`. �.- - MW-4D ��/moi%'�''i �����\\�� MW-7D ,�'�/iii-�'''�� �\\\�\`� -76.00 _.-,. ��///,,iii o .. ... 111PAINIPAgliprill MW-6D 4111110 'Nil. ileit �����` ♦`moi ��`.`\��. CpUNN ROAD 48 • DIRECTORY: C:\1027 FILE NAME: 3DCLAY DATE: SEPT 1991 SCALE: 1=1 DESIGNER: LV.G. 1 TOWN OF SOUTHOLD Dvirka SOUTHOLD LANDFILL 1�O Bartilucci 3-D CLAY SURFACE ELEVATION MAP CONSULTING ENGINEERS FIGURE 4-21 i II it I TABLE 4-6 TOWN OF SOUTHOLD LANDFILL I SOIL SAMPLING VOLATILE ORGANICS NYSDOH IMW6A FB01 TB7/15 NYSDEC CLASS GA DRINKING 7/15/91 7/15/91 7/15/91 STANDARDS/GUIDELINES STANDARDS VOLATILE COMPOUNDS (ug/kg) (ugh') (ug/I) (ug/I) (ugh!) IChloromethane U U U 5 ST 5 Bromomethane U U U 5 ST 5 Vinyl Chloride U U U 2 ST 2 IChloroethane U U U 5 ST 5 Methylene Chloride <''` 'rl' ` 1 J 1 J 5 ST 5 ...................:.... 2-Propanone 34 U U ---- 50 ICarbon disulfide U U U ---- 50 1,1-Dichloroethene U U U 5 ST 5 I 1,1-Dichloroethane U U U 5 ST 5 1,2-Dichloroethene (total) U U U 5 ST 5 Chloroform U U U 5 ST 5 Ii,2-Dichloroethane U U U 5 ST 5 2-Butanone U U U 5 1,1,1-Trichloroethane U U U 5 ST 5 I Carbon Tetrachloride U U U 5 ST 5 Vinyl Acetate U U U 5 Bromodichloromethane U U U 50 GV 5 Ii,2-Dichloropropane U U U 5 ST 5 cis-1,3-Dichloropropene U U U 5 Trichloroethene U U U 5 ST 5 I Dibromochloromethane U U U 50 GV 5 1,1,2-Trichloroethane U U U 5 ST 5 Benzene U U U ND ST 5 I Trans-1,3-Dichloropropene U U U ---- 5 Bromoform U U U 50 GV 5 4-Methyl-2-Pentanone U U U ---- 5 I 2-Hexanone U U U 50 GV 5 Tetrachloroethene U U U 5 ST 5 1,1,2,2-Tetrachloroethane U U U 5 ST 5 IToluene U U U 5 ST 5 Chlorobenzene U U U 5 ST 5 Ethylbenzene U U U 5 ST 5 IStyrene U U U 5 ST 5 Xylene (total) U U U 5 ST* 5 I QUALIFIERS NOTES U: analyzed for but not detected GV: Guidance Value J: compound found below detection limit ST: Standard I ----: Not established ........................ ST*: Applies to each isomer ... .................... ......................... : value exceeds standards/guidance I I EN — 1 I E all NM all all all all MN M a — MI all r M TABLE 4-7 TOWN OF SOUTHOLD LANDFILL SOIL SAMPLING VOLATILE ORGANICS NYSDOH MW6A FBO1 TB 7/15 NYSDEC CLASS GA DRINKING 7/15/91 7/15/91 7/15/91 STANDARDS/GUIDELINES STANDARDS VOLATILE COMPOUNDS (ug/kg) (ug/I) (ugh') (ug/I) (ug/I) Chloromethane U U U 5 ST 5 Bromomethane U U U 5 ST 5 Vinyl Chloride U U U 2 ST 2 Chloroethane U U U 5 ST 5 Methylene Chloride U U U 5 ST 5 2-Chloroethylvinyl ether U U U ---- ---- Trichlorofluoromethane U U U 5 ST 5 1,1-Dichloroethene U U U 5 ST 5 1,1-Dichioroethane U U U 5 ST 5 1,2-Dichloroethene(trans) U U U 5 ST 5 Chloroform U U U 5 ST 5 1,2-Dichloroethane U U U 5 ST 5 1,1,1-Trichloroethane U U U 5 ST 5 Carbon Tetrachloride U U U 5 ST 5 Bromodichloromethane U U U 50 GV 5 1,2-Dichioropropane U U U 5 ST 5 cis-1,3-Dichloropropene U U U ---- 5 Trichloroethene U U U 5 ST 5 Dibromochloromethane U U U 50 GV 5 1,1,2-Trichloroethane U U U 5 ST 5 Benzene U U U ND ST 5 Trans-1,3-Dichloropropen U U U ---- 5 Bromoform U U U 50 GV 5 Tetrachloroethene U U U 5 ST 5 1,1,2,2-Tetrachloroethane U U U 5 ST 5 Toluene U U U 5 ST 5 Chlorobenzene U U U 5 ST 5 Ethylbenzene U U U 5 ST 5 Xylene(total) U U U 5 ST* 5 1 1,2-Dichlorobenzene 2 U U 4.7 ST 5 1 1,3-Dichlorobenzene 2 U U 5 ST 5 1,4-Dichlorobenzene U U U 4.7 ST 5 QUALIFIERS NOTES U: analyzed for but not ST: Standard detected GV:Guidance Value ----: Not established ST': Applies to each isomer individually vapor readings, as well as visibly stained soil. Methylene chloride, a common laboratory contaminant, was found below the detection limit. 2-Propanone was found at a low concentration of 34 ug/kg. 1,2-Dichlorobenzene and 1,3-dichlorobenzene were both detected at a very low concentration of 2 ug/kg. 2-Propanone and 1,3-dichlorobenzene were not found in any ' groundwater samples obtained during this investigation. 1,2-Dichlorobenzene was detected at four monitoring wells but at a very low concentration of 1 ug/1. Table 4-8 lists the semivolatile compounds detected in soil sample MW-6A. The only semivolatiles detected were di-n-butylphthalate, butylbenzylphthalate and bis(2-ethylhexyl) phthalate. Di-n-butylphthalate was the only compound found above the detection limit. This compound was found at a concentration of 2,500 ug/kg and was also found present in the laboratory method blank at a 518 ug/kg. Phthalates are common laboratory contaminants. Pesticides/PCBs were not detected in soil sample MW-6A. The results of the pesticide/PCB sampling are shown in Table 4-9. 4.5.3.2 - Inorganic Sampling Results 111 The results for the metals analysis for soil sample MW-6A is presented in Table 4-10. Metals detected include aluminum, arsenic, barium, chromium, copper, iron, lead, magnesium, manganese, sodium, vanadium and zinc. Of these, only iron (3,980 mg/kg), magnesium (490 mg/kg), manganese (53.8 mg/kg) and sodium 373 mg/kg) were detected above NYSDEC Class GA Standards/Guidelines in groundwater samples collected as part of this investigation. A total of nine soil samples (S1 and S2 are duplicates) were collected as part of the USEPA site inspection in December 1990. Results for organic and inorganic analyses resulting from the USEPA sampling program are presented in Tables 4-11 and 4-12. The soil sample locations are shown in Figure 4-3. All samples were collected from the surface (0-6 inches) except for sample ' S7 (10-16 inches) and sample S8 (16-24 inches), which were collected just below the ground surface. The results indicate the presence of elevated levels of aluminum, barium, copper, lead, silver, zinc and 4-chloroanaline. Toluene was detected in soil sample S7 at a low concentration of 7 ug/kg. Pesticides such as aldrin,4,4'DDE and 4,4'DDT were also detected. The distribution of contaminant concentrations among both the on-site and off-site soil samples are generally uniform except for sample S6 collected from within one of the former ' scavenger waste lagoons which showed relatively higher levels of metals. Samples S7 and S8, also collected from within the former lagoons, showed levels of contaminants in the same range as ' s 12060 4-44 I I TABLE 4-8 TOWN OF SOUTHOLD LANDFILL SOIL SAMPLING ISEMIVOLATILE ORGANICS I NYSDOH MW6A FB01 NYSDEC CLASS GA DRINKING 7/15/91 7/15/91 STANDARDS/GUIDELINES STANDARDS I SEMIVOLATILE COMPOUNDS (ug/kg) Phenol U (ug/1) (ug/1) 1ST (ug/1) U 50 Bis(2-Chloroethyl)Ether U U 1 ST 5 I 2-Chlorophenol U U 1ST 5 1,3-Dichlorobenzene U U 5 ST 5 1,4-Dichlorobenzene U U 4.7ST 5 Benzyl Alcohol U U ---- 50 1,2-Dichlorobenzene U U 4.7ST 5 2-Methylphenol U U ---- 50 bis-(2-Chloroisopropyl)Ether U U ---- 5 I 4-Methylphenol U U 50 N-Nitroso-Di-n-Propylamine U U ---- 50 Hexachloroethane U U 5 ST 50 I Nitrobenzene U U 5 ST 5 Isophorone U U 50 GV 50 2-Nitrophenol U U ---- 50 I 2,4-Dimethylphenol U U =__= 5 Benzoic Acid U U 50 Bis-(2-Chloroethoxy)Methane U U 5 ST 5 I 2,4-Dichlorophenol U U 1ST 5 1,2,4-Trichlorobenzene U U 5 ST 5 Naphthalene U U 10 GV 50 I 4-Chloroaniline U U 5 ST 50 Hexachlorobutadiene U U 5 ST 5 4-Chloro-3-Methylphenol U U 1 ST 5 ' 2-Methylnaphthalene U U ---- 50 Hexachlorocyclopentadiene U U 5 ST 5 2,4,6-Trichlorophenol U U 1 ST 5 2,4,5-Trichlorophenol U U 1ST 5 2-Chloronaphthalene U U 5 ST 5 2-Nitroaniline U U 5 ST 50 I Dimethyl Phthalate U U 50 GV 50 Acenaphthylene U U 20 GV 50 I QUALIFIERS: NOTES: IU: analyzed for but not detected GV:Guidance Value J:compound found below detection limit ST: Standard ----: Not established I I TABLE 4-8(cont.) I TOWN OF SOUTHOLD LANDFILL SOIL SAMPLING SEMIVOLATILE ORGANICS INYSDOH MW6A FB01 NYSDEC CLASS GA DRINKING I 7/15/91 7/15/91 STANDARDS/GUIDELINES STANDARDS SEMIVOLATILE COMPOUNDS (ug/kg) (ug/1) (ug/I) (ug/I) 2,6-Dinitrotoluene U U 5 ST 5 I3-Nitroaniline U U 5 ST 50 Acenaphthene U U 20 GV 50 2,4-Dinitrophenol U U ---- 5 I4-Nitrophenol U U ---- 50 Dibenzofuran U U 50 2,4-Dinitrotoluene U U 5 ST 5 Diethylphthalate U U 50 GV 50 I4-Chiorophenyl-phenylether U U ---- 50 Fluorene U U 50 GV 50 4-Nitroaniline U U 5 ST 50 I 4,6-Dinitro-2-Methylphenol U U ---- 50 N-Nitrosodiphenylamine(1) U U 50 GV 50 4-Bromophenyl-phenylether U U 1 ST 50 I Hexachlorobenzene U U 0.35ST 5 Pentachlorophenol U U 1 ST 5 Phenanthrene U U 50 GV 50 I Anthracene U 2500U 50 GV 50 Di-n-Butylphthalate B U 50 ST 5 Fluoranthene U U 50 GV 50 I Pyrene U U 50 GV 50 Butylbenzylphthalate 230 J U 50 GV 50 3,3'-Dichlorobenzidine U U 5 ST 5 I Benzo(a)Anthracene U U .002 GV 50 Chrysene U U 002 GV 50 bis(2-Ethylhexyl)Phthalate 310 BJ 13 B 50 ST 50 I Di-n-Octylphthalate U U 50 GV 50 Benzo(b)Fluoranthene U U .002 GV 50 Benzo(k)Fluoranthene U U .002 GV 50 Benzo(a)Pyrene U U ND ST 50 I Indeno(1,2,3-cd)Pyrene U U .002 GV 50 Dibenz(a,h)Anthracene U U ---- 50 Benzo(g,h,i)Perylene U _ U _ ---- 50 QUALIFIERS: NOTES: IU:analyzed for but not detected GV:Guidance Value B:compound found in blank as well as sample ST: Standard J:compound found below detection limit ----: Not established I I I I TABLE 4-9 TOWN OF SOUTHOLD LANDFILL ISOIL SAMPLING PEST/PCB'S NYSDOH MW6A FB01 NYSDEC CLASS GA DRINKING I 7/15/91 7/15/91 STANDARDS/GUIDELINES STANDARDS ORGANIC COMPOUNDS (ug/kg) (ug/I) (ugh') (ug/I) alpha-BHC U U ---- 5 I beta-BHC U U =__= 5 delta BHC U U 5 gamma-BHC (Lindane) U U ---- ---- I Hepatachlor U U ND ST 5 Aldrin U U ND ST 5 Heptachlor epoxide U U ND ST 5 I Endosulfan I U U =__= 50 Dieldrin U U 5 4,4'-DDE U U ND ST 5 I Endrin U U ND ST 5 Endosulfan II U U 50 4,4'-DDD U U ND ST 5 I Endosulfan sulfate U U ---- 50 4,4'-DDT U U ND ST 5 Methoxychlor U U 35 ST 50 I Endrin Ketone U U ---- ---- alpha-Chlordane U U 0.1 ST 5 gamma-Chlordane U U 0.1 ST 5 Toxaphene U U ND ST 5 IArochlor-1016 U U 0.1 ST 5 Arochlor-1221 U U 0.1 ST 5 Arochlor-1232 U U 0.1 ST 5 I Arochlor-1242 U U 0.1 ST 5 Arochlor-1248 U U 0.1 ST 5 Arochlor-1254 U U 0.1 ST 5 IArochlor-1260 U U 0.1 ST 5 QUALIFIERS NOTES U: analyzed for but not detected GV: Guidance Value IST: Standard ----: Not established ND: Not detected I - =I NM NMI - MO - 11111 Ma EN IMO 11•11 MI INI 1111 EMI 1111 1111 MN 1 TABLE 4-10 TOWN OF SOUTHOLD LANDFILL SOIL SAMPLING INORGANIC CONSTITUENTS NYSDOH I MW6A FB01 NYSDEC CLASS GA DRINKING NYS 7/15/91 7/15/91 STANDARDS/GUIDELINES STANDARDS BACKGROUND LEVELS (mg/kg) (mg/I) (mg/I) (mg/I) (mg/kg) CONSTITUENTS Aluminum 1640 U ---- ---- ---- Antimony U U 0.003 ST ---- ---- Arsenic 1.7 B U 0.025 ST 0.05 3-12 Barium 12.2 B U 1 ST 1 ---- Beryllium U U ---- ---- ---- Cadmium U U 0.01 ST 0.01 0.21-1.8 Calcium U U ---- ---- 778-3532 Chromium 7.4 U 0.05 ST 0.05 ---- Colbalt U U ---- ---- ---- Copper 5.9 B 23.3 0.2 ST ---- AVG.=74.8 Iron 3980 U 0.3 ST 0.05 ---- Lead 3.1 U 0.25 ST ---- 15-36 Magnesium 490 B U 35 GV ---- ---- Manganese 53.8 U 0.3 ST ---- ---- Mercury U U 0.002 ST 0.002 ---- Nickel U U ---- ---- AVG.=19.5 Potassium U U ---- ---- 47.5-117.5 Selenium U U 0.01 ST 0.01 ---- Silver U U 0.05 ST 0.05 ---- Sodium 373 U 20 ST ---- ---- Thallium U U 0.004 ST ---- ---- Vanadium 7.6 B U ---- ---- ---- I Zinc 12.6 U 0.3 ST ---- AVG.=64 Cyanide U U 0.1 ST ---- ---- QUALIFIERS: NOTES: U: Analyzed for but not detected UV: Guidance value B: Value is less than contract ST: Standard required limits but greater ----: Not established than the instrument detection limit - - - - - Table 4-11 SOUTHOLD LANDFILL HYDROGEOLOGIC INVESTIGATION RESULTS OF ORGANIC ANALYSES FROM USEPA SOIL SAMPLING (all results in ug/kg) S11 S2 (DuD.)1 S3 S4 S5 S62 S72 S82 S9 Volatiles: Acetone J J U U U U U U U Toluene U U U U U J 7 U U Semivolatiles: 4-Chloroanaline U U U U U 1,000 J U U Phenanthrene U U U U J U U U U Di-n-Butylphthalate U U U U U U U J U Fluoranthene U U U U J U U U U Pyrene U U U U J J U U U Butylbenzlyphthalate U U U U U J U U U Benzo(a)anthracene U U U U J U U U U Chrysene U U U U J J U U U Benzo(b)fluoranthene U U U U J U U U U Benzo(d)fluoranthene U U U U J U U Benzo(a)pyrene U U U U J J U U U Pesticides/PCBs: gamma-BHC (Lindane) U U U U J U U U U Aldrin U U U U U U 11 U U 4,4'-DDE 93E 120 J J U J 24 U J Endrin J U U U U U U U U Endosulfansulfate U 57 J U U U U U J 4,4'-DDT 410E 450 71E U 76E U U U 32 gamma-Chlordane J J J J U J J U U Endosulfan II U U U U J U U U J 1 - Off-site sample 2 - Sample collected from bottom of former scavenger waste lagoons. U - Analyzed for but not detected. J - Estimated value - present below CRQL but above IDL E - Estimated value NOTE: Only detected compounds shown. S1483G 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 r r Table 4-12 SOUTHOLD LANDFILL HYDROGEOLOGIC INVESTIGATION RESULTS OF INORGANIC ANALYSES FROM USEPA SOIL SAMPLING (all results in mg/kg) S11 S2 (Dup.)1 S3 S4 S5 562 S72 S82 S9 Metals: Aluminum 4640 5320 2140 4030 4310 12700 3080 1010 5280 Arsenic 8.3 8.7 J 3.2 3.7 15.6 6.8 J 8.5 Barium J J J J 52.2E 693E 61E J J Beryllium J U U U U 1.7 J U U Cadmium U U U U U 8.5 U U U Calcium J J J J 1300E 5180E 1500E J J Chromium 6.9 7.3 3.3 6.3 5 40.9 6.6 2.6 4.7 Cobalt U J U U U J U U U Copper 19.7E 16.7E 8.4 10.8E 16.7E 3020E 51.7E 12.8E 7.8 Iron 6370 7280 5010 4940 6120 15200 6640 1590 7800 Lead 85.8 74.1 49.5 2036 117 412 24.5 13.2 28.1 Magnesium J J J J J J J J J Manganese 102E 106E 75.7E 45.7E 69.7E 57.2E 45.5E 20.9E 36.7E Mercury R R R R R 10.9 R U U � Potassium J J J J J J J J J Selenium U U J J J 9.1E J U U Silver J 2.7 U J J 24.3 2.2 U 3.1 Sodium J J J J J J J J J Vanadium 13 13.8 J J J J J J 17.9 Zinc 44.6E 44E 75.9E R 134E 1060E 215E R R 1 - Off-site sample. 2 - Sample collected from bottom of former scavenger waste lagoons. U - Analyzed for but not detected. J - Estimated value - present below CRQL but above IDL E - Estimated value R - Analysis did not pass EPA QA/QC NOTE: Only detected metals shown S1483G ' other on-site and off-site soil samples. Of the metals detected in the soil samples, iron, manganese, magnesium and sodium were the only metals found in groundwater at levels exceeding standards. Volatile and semivolatile compounds and pesticides/PCBs detected in soil were not found in any groundwater sample collected during the Part 360/Phase II investigation. 4.5.4 Groundwater Sampling 4.5.4.1 - Organic Sampling Results ' The VOCs detected in groundwater samples collected as part of the Part 360/Phase II investigation are listed in Table 4-13 and Method 601/602 VOCs in Table 4-14. Compounds detected include methylene chloride, 1,2-dichloroethane, 1,2-dichloropropane, chlorobenzene and the Method 601/602 volatiles, 1,2-dichlorobenzene and 1,4-dichlorobenzene. As mentioned previously, methylene chloride is a laboratory contaminant. 1,2-Dichlorobenzene and 1,4-dichlorobenzene were also detected in the trip blank. In all cases, each compound was detected at a low level of 1 ug/1. Therefore, the presence of these compounds cannot be confirmed since their presence could be the result of either laboratory contamination or contamination in the field. VOCs were detected in trace amounts (below standards) in all monitoring wells except for jwell MW-6D where 1,2-dichloroethane (12 ug/l) and 1,2-dichloropropane (11 ug/1) were found to contravene the NYSDEC Class GA groundwater standard of 5 ug/1 for both compounds. MW-6D is immediately downgradient of the former scavenger waste lagoons. 1,2-Dichloropropane (an insecticide) has been found in elevated concentrations in previous sampling efforts both up and downgradient of the landfill. 1,2-Dichloropropane was found at monitoring well S-68916 at a concentration of 15 ug/1 and at private well GW-6 at a concentration of 9 ugh!. It must be noted that dichloropropane was found in concentrations as high as 68 ug/1 in an upgradient well (S-76687), indicating that the presence of this insecticide in groundwater is due to local agricultural activities and is not readily attributable to the landfill. 1,2-Dichloroethane has been detected previously on one occasion at a concentration of 2.0 ug/1 in on-site well S-68916, although it was not detected in subsequent sampling events. Previous groundwater sampling efforts have detected chlorobenzene in concentrations exceeding the New York State Class GA groundwater standard of 5 ugh. Two samples collected ' from on-site well S-68916 showed concentrations of 9 ug/1 and 23/24 u S g/1 (USEPA investigation result) in two different sampling events. Since chlorobenzene was not detected in well cluster MW-6, which is further upgradient and closer to the former lagoons, it appears that the lagoons are ' not a source of this compound in groundwater. S 12060 4-51 1111 11111 11111 11111 all i NM NM MI 1 MN — 1 E M 1 i N M TABLE 4-13 TOWN OF SOUTHOLD LANDFILL GROUNDWATER SAMPLING VOLATILE ORGANICS NYSIJOH MW1S MW1D MW2S MW2D MW3S MW3D MW4S MW4D NYSDEC CLASS GA DRINKING 7/25/91 7/25/91 7/24/91 7/24/91 7/25/91 7/25/91 7/26/91 7/26/91 STANDARDS/GUIDELINES STANDARDS VOLATILE COMPOUNDS (ug/I) (ug/i) (ug/I) (ug/I) (ug/1) (ug/I) (ug/I) (ug/1) (ug/I) (ug/l) Chloromethane u u u u u u u u 5ST 5 Bromomethane U U U U U U U U 5 ST 5 Vinyl Chloride u u u u u u u u 2 ST 2 Chloroethane u u u u u u u U 5 ST 5 Methylene Chloride 2 J 2 J U U U 1J U U 5ST 5 2-Propanone U U u u u u u u -- 5o Carbon disulfide u u u U U u u u — 50 1,1-Dichloroethene u U u u u u u U 5ST 5 1,1-Dichloroethane U u u u u u u u 5ST 5 1,2-Dichloroethene(total) u u u u u u u u 5 ST 5 Chloroform U u u U u u U u 5ST 5 1,2-Dichloroethane u U U 4 J U U U 4 J 5ST 5 2-Butanone U u u u U u U u — 5 1,1,1-Trichloroethane U u U U U U u u 5ST 5 Carbon Tetrachloride u u u u u u u U 5 ST 5 Vinyl Acetate u u u u u u u u — 5 Bromodichloromethane U U U U U U u U 50 GV 5 1,2-Dichloropropane u u u u u u u U 5 ST 5 cis-1,3-Dichloropropene u u u U u u u u — 5 Trichloroethene u u u u U u U u 5 ST 5 Dibromochloromethane u u u u U u u u 50 GV 5 1,1,2-Trichloroethane u u u u U u u u 5ST 5 1 Benzene u u u u U u u u ND ST 5 Trans-1,3-Dichloropropene u u u u u U u u -- 5 Bromoform U U U U U U U U 50 GV 5 4-Methyl-2-Pentanone u u u u U u u u — 5 2-Hexanone u u u U U u u u 50 GV 5 Tetrachloroethene u u u u U u u u 5 ST 5 1,1,2,2-Tetrachloroethane U u U u u U u u 5ST 5 Toluene U U u u u u u U 5ST 5 Chlorobenzene u u U 3 J U U U U 5ST 5 1 Ethylbenzene u u U u u U u U 5 ST 5 Styrene U U u u u u U U 5ST 5 Xylene(total) u u u u U U u u 5ST• 5 Unknown NP NP NP 8J' NP NP NP NP --- — Freon 113 NP NP NP NP NP NP NP 8.1* -- — QUALIFIERS NOTES U: analyzed for but GV:Guidance Value not detected B:compound found in blank ST: Standard as well as sample J: compound found below ----: Not established detection limit I J': estimated value ST': Applies to each isomer individually NP: not present EN - MI NM 1 NM r /I - - - N NI IN MN - r NM N TABLE 4-13(cont.) TOWN OF SOUTHOLD LANDFILL GROUNDWATER SAMPLING VOLATILE ORGANICS NYSUOH MW5S MW5D MW6S MW6D MW7S MW7D FB TB NYSDEC CLASS GA DRINKING 7/25/91 7/25/91 7/24/91 7/24/91 7/25/91 7/26/91 7/25/91 7/26/91 TANDARDS/GUIDELINE STANDARDS VOLATILE COMPOUNDS (ug/I) (ugh') (ug/I) (ugh!) (ug/I) (ug/1) (ug/I) (ug/I) (ug/1) (ugh') Chloromethane U U U U U 4 U U U 5 ST r 5 Bromomethane u u U U U U U U 5 ST 5 Vinyl Chloride u u u u u u u u 2 ST 2 Chloroethane u u u u u u u u 5 ST 5 Methylene Chloride U U U 2 J U U 2 J U 5 ST 5 2-Propanone u u u u u U u u -- 5o Carbon disulfide u u u u u u u u --- 50 1,1-Dichloroethene u u u u u u u u 5 sr 5 1,1-Dichioroethane u u u u u u u u 5ST 5 1,2-Dichloroethene(total) u u u u u u u u 5ST 5 Chloroform u U U U u U U U 5 ST 5 1,2-Dichloroethane u U U1 ><'<'?> U U U U 5ST 5 2-Butanone u u u u....,...... u u u u -- 5 1,1,1-Trichloroethane u u u u u u u U 5ST 5 Carbon Tetrachloride U u u u U U U U 5 ST 5 Vinyl Acetate u u u u u u u u --- 5 Bromodichioromethane u u u u U U u u 50 GV 5 1,2-Dichloropropane u u U11:: U U U U 5ST 5 cis-1,3-Dichloropropene u u u u.......... u u u u - 5 Trichloroethene U u U U u U u U 5ST 5 Dibromochloromethane u u u u u u u u 50 GV 5 1,1,2-Trichloroethane u u u u u u u u 5ST 5 Benzene U U U U U U U U ND ST 5 Trans-1,3-Dichloropropene u u u u u u u u — 5 Bromoform U U U U U U U U 50 GV 5 4-Methyl-2-Pentanone u U U U U U u u 5 2-Hexanone U u u u u u u u 50 GV 5 Tetrachloroethene u u u u U u u u 5 ST 5 1,1,2,2-Tetrachloroethane u U U U U U U U 5ST 5 Toluene u u u u u u u U 5ST 5 Chlorobenzene u u u u u u u u 5 ST 5 Ethylbenzene u u u u U u u u 5 ST 5 Styrene U U U U U U U U 5ST 5 Xylene(total) U U U U U U U U 5ST' 5 Unknown NP 7 J' NP NP NP NP NP NP -- -- Freon 113 NP NP NP NP NP NP NP NP — -- QUALIFIERS NOTES U: analyzed for but GV:Guidance Value not detected B: compound found in blank ST: Standard as well as sample J: compound found below ----: Not established detection limit J•: estimated value ST*: Applies to each isomer individually NP: not present .......................... .......................... :value exceeds standards/guidelines 1 11111 E MI all MN N A UN NM NE 11111 S NM NM NM 1111 MN NM TABLE 4-14 TOWN OF SOUTHOLD LANDFILL GROUNDWATER SAMPLING METHOD 601/602 VOLATILE ORGANICS NYSDOH MW1S MW1D MW2S MW2D MW3S MW3D MW4S MW4D MW5S NYSDEC CLASS GA DRINKING 7/25/91 7/25/91 7/24/91 7/24/91 7/25/91 7/25/91 7/26/91 7/26/91 7/25/91 STANDARDS/GUIDELINES STANDARDS VOLATILE COMPOUNDS (ug/I) (ug/I) (ug/I) (ugh!) (ug/I) (ug/I) (ug/I) (ug/I) (ug/1) (ugh!) (ug/I) Chloromethane U U U U U U U U U 5 ST 5 _ Bromomethane U U U U U U U U U 5 ST 5 Vinyl Chloride U U U U U U U U U 2 ST 2 Chloroethane U U U U U U U U U 5 ST 5 Methylene Chloride U U U U U U U U U 5 ST 5 2-Chloroethylvinyl ether U U U U U U U U U ---- ---- Trichlorofluoromethane U U U U U U U U U 5 ST 5 1,1-Dichloroethene U U U U U U U U U 5 ST 5 1,1-Dichioroethane U U U U U U U U U 5 ST 5 1,2-Dichloroethene(trans) U U U U U U U U U 5 ST 5 Chloroform U U U U U U U U U 5 ST 5 1,2-Dichloroethane U U U U U U U U U 5 ST 5 I 1,1,1-Trichloroethane U U U U U U U U U 5 ST 5 Carbon Tetrachloride U U U U U U U U U 5 ST 5 Bromodichloromethane U U U U U U U U U 50 GV 5 1,2-Dichloropropane U U U U U U U U U 5 ST 5 cis-1,3-Dichloropropene U U U U U U U U U ---- 5 Trichloroethene U U U U U U U U U 5 ST 5 Dibromochloromethane U U U U U U U U U 50 GV 5 1,1,2-Trichloroethane U U U U U U U U U 5 ST 5 Benzene U U U U U U U U U ND ST 5 Trans-1,3-Dichloropropen U U U U U U U U U ---- 5 Bromoform U U U U U U U U U 50 GV 5 Tetrachloroethene U U U U U U U U U 5 ST 5 1,1,2,2-Tetrachloroethane U U U U U U U U U 5 ST 5 Toluene U U U U U U U U U 5 ST 5 Chlorobenzene U U U U U U U U U 5 ST 5 Ethylbenzene U U U U U U U U U 5 ST 5 Xylene(total) U U U U U U U U U 5 ST' 5 1,2-Dichlorobenzene U U U U U U U U U 4.7 ST 5 1,3-Dichlorobenzene U U U U U U U U U 5 ST 5 1,4-Dichlorobenzene U U U U U U U U U 4.7 ST 5 QUALIFIERS NOTES U: analyzed for but not ST: Standard detected GV:Guidance Value ----: Not established Sr: Applies to each isomer individually — r MN E N N I N E all EN a — — RN MN NM I M TABLE 4-14(cont.) TOWN OF SOUTHOLD LANDFILL GROUNDWATER SAMPLING METHOD 601/602 VOLATILE ORGANICS NYSDOH MW5D MW6S MW6D MW7S MW7D TB 7/25 FB GW NYSDEC CLASS GA DRINKING 7/25/91 7/24/91 7/25/91 7/25/91 7/26/91 7/25/91 7/25/91 STANDARDS/GUIDELINES STANDARDS VOLATILE COMPOUNDS (ug/I) (ug/1) (ug/I) (ug/I) (ug/I) (ug/I) (ug/I) (ug/I) (ug/I) Chloromethane U U U U U U U 5 ST 5 Bromomethane U U U U U U U 5 ST 5 Vinyl Chloride U U U U U U U 2 ST 2 Chloroethane U U U U U U U 5 ST 5 Methylene Chloride U U U U U U U 5 ST 5 2-Chloroethylvinyl ether U U U U U U U ---- ---- Trichlorofluoromethane U U U U U U U 5 ST 5 1,1-Dichioroethene U U U U U U U 5 ST 5 1,1-Dichloroethane U U U U U U U 5 ST 5 1,2-Dichloroethene(trans) U U U U U U U 5 ST 5 Chloroform U U U U U U U 5 ST 5 1,2-Dichloroethane U U U U U U U 5 ST 5 1,1,1-Trichloroethane U U U U U U U 5 ST 5 Carbon Tetrachloride U U U U U U U 5 ST 5 Bromodichloromethane U U U U U U U 50 GV 5 1,2-Dichloropropane U U U U U U U 5 ST 5 cis-1,3-Dichloropropene U U U U U U U ---- 5 Trichloroethene U U U U U U U 5 ST 5 Dibromochloromethane U U U U U U U 50 GV 5 1,1,2-Trichloroethane U U U U U U U 5 ST 5 Benzene U U U U U U U ND ST 5 Trans-1,3-Dichloropropen U U U U U U U ---- 5 Bromoform U U U U U U U 50 GV 5 Tetrachloroethene U U U U U U U 5 ST 5 1,1,2,2-Tetrachloroethane U U U U U U U 5 ST 5 Toluene U U U U U U U 5 ST 5 Chlorobenzene U U U U U U U 5 ST 5 Ethylbenzene U U U U U U U 5 ST 5 Xylene(total) U U U U U U U 5 ST 5 1,2-Dichlorobenzene U 1 1 1 U 1 U 4.7 ST 5 1,3-Dichlorobenzene U U U U U U U 5 ST 5 1,4-Dichlorobenzene U 1 U 1 U 1 U 4.7 ST 5 QUALIFIERS NOTES U: analyzed for but not ST: Standard detected GV: Guidance Value ----: Not established ST*: Applies to each isomer individually I ITable 4-15 presents the results of the semivolatile analyses of groundwater. Naphthalene and bis(2-ethylhexyl)phthalate were both found in trace levels below the detection limit. As I previously discussed, bis(2-ethylhexyl)phthalate is a laboratory contaminant. Naphthalene was found in trace quantities below the guidelines at only two wells (MW-3S and MW-6D). As shown in Table 4-16,pesticides/PCBs were not detected in groundwater. A table showing the results of all organic compounds detected in groundwater samples 1 collected as part of this investigation, as well as groundwater samples collected as part of the recent USEPA site inspection, is presented in Table 4-17. All organic compounds found to exceed INYSDEC Class GA groundwater standards are listed in this table and presented in Figure 4-22. Organic compounds known to be common laboratory contaminants such as methylene chloride and phthalates are not included in Figure 4-22. 1,2-Dichloropropane was detected at a concentration exceeding standards during both Iinvestigations. Dichloropropane was present above standards in downgradient wells MW-6D, S-68916 and GW-6. MW-6D and S-68916 are located immediately downgradient of the former Iscavenger waste lagoons. Well GW-6 is located along Oregon Road approximately 2,000 feet downgradient of well S-68916. As previously mentioned, 1,2-dichloropropane is an insecticide I and was found during other sampling investigations at levels exceeding standards both upgradient and downgradient of the landfill. Therefore, the presence of this compound in supply well GW-6 is not attributed to the landfill. Chlorobenzene was found to exceed standards in well S-68916 but was not found in any Idowngradient supply wells and was detected in only one other well (MW-2D) at a very low concentration. 1,2-Dichloroethane, although found to exceed standards in well MW-6D, was only Ifound in three other wells (MW-3S, MW-4D and S-68916) at very low concentrations that were below the detection limit. Trans-1,2-dichloroethene (total), tetrachloroethane and toluene were I detected in wells sampled during the USEPA site inspection (wells S-68916 and GW-7) but at nonquantifiable concentrations below the detection limit. Naphthalene, a semivolatile compound, I was detected during the Part 360/Phase II investigation at wells MW-3S and MW-6D. In both cases, the concentrations were low and below the method detection limit. Naphthalene was not found in any well sampled during the USEPA site inspection. These results indicate that the Ilandfill is not causing an impact to downgradient water supply with respect to organic contaminants. I I IS12060 4-56 I I I TABLE 4-15 TOWN OF SOUTHOLD LANDFILL GROUNDWATER SAMPLING SEMIVOLATILE ORGANICS I NYSDOH MW1 S MW1 D MW2S MW2D MW3S NYSDEC CLASS GA DRINKING 7/25/91 7/25/91 7/24/91 7/24/91 7/25/91 STANDARDS/GUIDELINES STANDARDS I SEMIVOLATILE COMPOUNDS (ug/I) (ug/I) (ug/I) (ug/I) (ug/I) (ugh!) (ug/I) Phenol U U U U U 1 ST 50 Bis(2-Chloroethyl)Ether U U U U U 1 ST 5 2-Chlorophenol U U U U U 1 ST 5 I 1,3-Dichlorobenzene U U U U U 5 ST 5 1,4-Dichlorobenzene U U U U U 4.7ST 5 Benzyl Alcohol U U U U U ---- 50 I 1,2-Dichlorobenzene U U U U U 4.7ST 5 2-Methylphenol U U U U U 50 bis-(2-Chloroisopropyl)Ether U U U U U ---- 5 I 4-Methylphenol U U U U U ---- 50 N-Nitroso-Di-n-Propylamine U U U U U ---- 50 Hexachloroethane U U U U U 5 ST 50 Nitrobenzene U U U U U 5 ST 5 I Isophorone U U U U U 50 GV 50 2-Nitrophenol U U U U U 50 2,4-Dimethylphenol U U U U U ---- 5 I Benzoic Acid U U U U U ---- 50 Bis-(2-Chloroethoxy)Methane U U U U U 5 ST 5 2,4-Dichlorophenol U U U U U 1 ST 5 1,2,4-Trichlorobenzene U U U U U 5 ST 5 I Naphthalene U U U U 7 J 10 GV 50 4-Chloroaniline U U U U U 5 ST 50 Hexachlorobutadiene U U U U U 5 ST 5 I 4-Chloro-3-Methylphenol U U U U U 1 ST 5 2-Methylnaphthalene U U U U U 50 Hexachlorocyclopentadiene U U U U U 5 ST 5 I 2,4,6-Trichlorophenol U U U U U 1 ST 5 2,4,5-Trichlorophenol U U U U U 1 ST 5 2-Chloronaphthalene U U U U U 5 ST 5 I 2-Nitroaniline U U U U U 5 ST 50 Dimethyl Phthalate U U U U U 50 GV 50 Acenaphthylene U U U U U 20 GV 50 2,6-Dinitrotoluene U U U U U 5 ST 5 I 3-Nitroaniline U U U U U 5 ST 50 Acenaphthene U U U U U 20 GV 50 2,4-Dinitrophenol U U U U U ---- 5 IQUALIFIERS: NOTES: U:analyzed for but not detected GV: Guidance Value J:compound found below detection limit ST: Standard I ----: Not established I I TABLE 4-15(cont.) TOWN OF SOUTHOLD LANDFILL GROUNDWATER SAMPLING SEMIVOLATILE ORGANICS NYSDOH MW1 S MW1 D MW2S MW2D MW3S NYSDEC CLASS GA DRINKING 7/25/91 7/25/91 7/24/91 7/24/91 7/25/91 STANDARDS/GUIDELINESSTANDARDS SEMIVOLATILE COMPOUNDS (ughl) (ug/I) (ug/1) (ugh!) (ugh!) (ug/I) (ug/I) 4-Nitrophenol u U U u u ---- 50 Dibenzofuran u U U u u ---- 50 2,4-Dinitrotoluene u u U U U 5 ST 5 Diethylphthalate U U U U U 50 GV 50 4-Chiorophenyl-phenylether U U U U U ---- 50 Fluorene u U U U U 50 GV 50 4-Nitroaniline U U U U U 5 ST 50 4,6-Dinitro-2-Methylphenol u u U u u ---- 50 N-Nitrosodiphenylamine (1) U U U u U 50 GV 50 4-Bromophenyl-phenylether u U U U u 1 ST 50 Hexachlorobenzene u u u u u 0.35ST 5 Pentachlorophenol u u u u u 1 ST 5 Phenanthrene U u u u u 50 GV 50 Anthracene u u u u u 50 Gv 50 Di-n-Butylphthalate u U U u U 50 ST 5 Fluoranthene U u U u u 50 GV 50 Pyrene u u u u u 50 GV 50 Butylbenzylphthalate U U U U U 50 GV 50 3,3'-Dichlorobenzidine u u u U U 5 ST 5 Benzo(a)Anthracene U U U u u .002 GV 50 hrysene U U u U u .002 GV 50 •is(2-Ethylhexyl)Phthalate 2 J 4 BJ 2 J U 2 BJ 50 ST 50 Di-n-Octylphthalate u U u U u 50 GV 50 :enzo(b)Fluoranthene U U U u u .002 GV 50 enzo(k)Fluoranthene U U U u U .002 GV 50 Benzo(a)Pyrene u u u u U ND ST 50 ndeno(1,2,3-cd)Pyrene U U U U U .002 GV 50 ibenz(a,h)Anthracene U u u u u ---- 50 :enzo(g,h,i)Perylene u u u u u ---- 50 nknown NP NP 20 J* 9 J* 31 J* ---- ---- nknown NP NP 10 J• 12 J• 29 J• ---- ---- nknown NP NP 10 J• 59 J• 11 J• ---- ---- Unknown NP NP 9 J• 9 J• 8 J• ---- ---- nknown NP NP 9 J` 13 J* 11 J• ---- ---- nknown NP NP NP 21 J• 14J• ---- ---- nknown NP NP NP 13 J* 10 J' ---- ---- Unknown NP NP NP 11 J' 11 J• ---- ---- nknown NP NP NP NP 10J• ---- ---- nknown NP NP NP NP 8J• ---- ---- nknown NP NP NP NP 9 J• ---- ---- Unknown NP NP NP NP 34 J' ---- ---- nknown Aromatic NP NP NP 17 J• NP ---- ---- nknown Aromatic NP NP NP 13.1* NP ---- ---- nknown Aromatic NP NP 11 J• 38 J* 11 J• ---- ---- Unknown Aromatic NP NP 14.1' 10 J• 15.1' ---- ---- nknown Acid NP NP NP NP NP ---- ---- nknown Acid NP NP NP NP NP ---- ---- nknown Acid NP NP NP NP NP ---- ---- Unknown Acid NP NP NP NP NP ---- ---- nknown Acid NP NP NP NP NP ---- ---- exadecanoic Acid NP NP NP NP NP ---- ---- UALIFIERS: NOTES: :analyzed for but not detected GV:Guidance Value :compound found in blank as well ST:Standard as sample ----: Not established compound found below detection ND: not detected 111 limit NP: not present I I I TABLE 4-15 TOWN OF SOUTHOLD LANDFILL GROUNDWATER SAMPLING SEMIVOLATILE ORGANICS I NYSDOH MW3D MW4S MW4D MW5S MW5D NYSDEC CLASS GA DRINKING 7/25/91 7/26/91 7/26/91 7/25/91 7/25/91 STANDARDS/GUIDELINESSTANDARDS I SEMIVOLATILE COMPOUNDS (ug/I) (ug/I) (ug/I) (ugh') (ug/I) (ug/I) (ug/I) Phenol U U U U U 1 ST 50 Bis(2-Chloroethyl)Ether U U U U U 1 ST 5 I 2-Chlorophenol U U U U U 1 ST 5 1,3-Dichlorobenzene U U U U U 5 ST 5 1,4-Dichlorobenzene U U U U U 4.7ST 5 Benzyl Alcohol U U U U U ---- 50 I 1,2-Dichlorobenzene U U U U U 4.7ST 5 2-Methylphenol U U U U U 50 bis-(2-Chloroisopropyl)Ether U U U U U ---- 5 I 4-Methyiphenol U U U U U ---- 50 N-Nitroso-Di-n-Propylamine U U U U U 50 Hexachloroethane U U U U U 5 ST 50 Nitrobenzene U U U U U 5 ST 5 I Isophorone U U U U U 50 GV 50 2-Nitrophenol U U U U U 50 2,4-Dimethylphenol U U U U U ---- 5 I Benzoic Acid U U U U U ---- 50 Bis-(2-Chloroethoxy)Methane U U U U U 5 ST 5 2,4-Dichiorophenol U U U U U 1 ST 5 I 1,2,4-Trichlorobenzene U U U U U 5 ST 5 Naphthalene U U U U U 10 GV 50 4-Chloroaniline U U U U U 5 ST 50 Hexachlorobutadiene U U U U U 5 ST 5 I 4-Chloro-3-Methylphenol U U U U U 1 ST 5 2-Methylnaphthalene U U U U U 50 Hexachlorocyclopentadiene U U U U U 5 ST 5 I 2,4,6-Trichlorophenol U U U U U 1 ST 5 2,4,5-Trichlorophenol U U U U U 1 ST 5 2-Chloronaphthalene U U U U U 5 ST 5 l 2-Nitroaniline U U U U U 5 ST 50 Dimethyl Phthalate U U U U U 50 GV 50 Acenaphthylene U U U U U 20 GV 50 2,6-Dinitrotoluene U U U U U 5 ST 5 I 3-Nitroaniline U U U U U 5 ST 50 Acenaphthene U U U U U 20 GV 50 2,4-Dinitrophenol U U _ U U U ---- 5 IQUALIFIERS: NOTES: U:analyzed for but not detected GV: Guidance Value J:compound found below detection ST: Standard I --: Not established I TABLE 4-15(cont.) TOWN OF SOUTHOLD LANDFILL GROUNDWATER SAMPLING SEMIVOLATILE ORGANICS NYSDOH MW3D MW4S MW4D MW5S MW5D NYSDEC CLASS GA DRINKING 7/25/91 7/26/91 7/26/91 7/25/91 7/25/91 STANDARDS/GUIDELINESSTANDARDS ISEMIVOLATILE COMPOUNDS (ugh') (ug/I) (ug/I) (ugh') (ugh') (ugh') (ug/I) 4-Nitrophenol u U U U U ---- 50 Dibenzofuran U u U u u ---- 50 2,4-Dinitrotoluene U U U U U 5 ST 5 Diethylphthalate u U u u u 50 GV 50 4-Chiorophenyl-phenylether U U u u U ---- 50 jFluorene u U u u u 50 GV 50 I4-Nitroaniline U U U U U 5 ST 50 4,6-Dinitro-2-Methylphenol U U u U U 50 N-Nitrosodiphenylamine (1) u U U U U 50 GV 50 4-Bromophenyl-phenylether u u U U u 1 ST 50 Hexachlorobenzene u u u u u 0.35ST 5 Pentachlorophenol U U u u U 1 ST 5 Phenanthrene u u u u u 50 GV 50 Anthracene U U U U U 50 GV 50 Di-n-Butylphthalate U U U U U 50 ST 5 Fluoranthene U U U U U 50 GV 50 Pyrene U U U U U 50 GV 50 Butylbenzylphthalate u u U U U 50 GV 50 3,3'-Dichlorobenzidine u u u u U 5 ST 5 Benzo(a)Anthracene U U U U U .002 GV 50 Chrysene u u U U u .002 GV 50 bis(2-Ethylhexyl)Phthalate 2 BJ 2 BJ 2 BJ 2 BJ 3 BJ 50 ST 50 Di-n-Octylphthalate U U U U U 50 GV 50 Benzo(b)Fluoranthene u U U u u .002 GV 50 Benzo(k)Fluoranthene U u u u u .002 Gv 50 Benzo(a)Pyrene U u U U U ND ST 50 Indeno(1,2,3-cd)Pyrene U U U U U .002 GV 50 Dibenz(a,h)Anthracene U U u U u ---- 50 Benzo(g,h,i)Perylene u U u U U ---- 50 Unknown 23J* 25J* 16J* 15J• 320J* ---- ---- Unknown 26 J• NP 35 J' 11 J' 15 J' ---- ---- Unknown 10 J. NP 9 J' NP 49 J* ---- ---- Unknown 12 J* NP 13 J* NP 26 J* ---- ---- Unknown 29 J* NP 9 J' NP 13 J' ---- ---- Unknown NP NP 9 J` NP 43 J* ---- ---- Unknown NP NP 28 J' NP 39 J' ---- ---- Unknown NP NP 10 J* NP 8 J• ---- ---- Unknown NP NP 17 J' NP 18 J' ---- ---- Unknown NP NP NP NP 13 J* ---- ---- Unknown NP NP NP NP 260 J* ---- ---- Unknown NP NP NP NP NA ---- ---- Unknown Aromatic NP NP NP NP 9 J' ---- ---- Unknown Aromatic NP NP NP NP NA ---- ---- Unknown Aromatic NP NP NP NP NA ---- ---- Unknown Aromatic NP NP NP NP NA ---- ---- Unknown Acid NP NP NP NP 13 J* ---- ---- Unknown Acid NP NP NP NP 26 J* ---- ---- i Unknown Acid NP NP NP NP 290 J* ----IUnknownAcid NP NP NP NP 89 J* Unknown Acid NP NP NP NP 51 J' ____ __ __ Hexadecanoic Acid NP NP NP NP 67 J' QUALIFIERS: NOTES: U:analyzed for but not detected GV:Guidance Value B:compound found in blank as well ST: Standard as sample ----: Not established I 1:compound found below detection NP: not present limit ND: not detected I I I TABLE 4-15 TOWN OF SOUTHOLD LANDFILL GROUNDWATER SAMPLING SEMIVOLATILE ORGANICS I NYSDOH MW5DRE MW6S MW6D MW6DRE MW7S NYSDEC CLASS GA DRINKING 7/25/91 7/24/91 7/24/91 7/24/91 7/25/91 STANDARDS/GUIDELINES STANDARDS I SEMIVOLATILE COMPOUNDS (ugh!) (ugh!) (ug/I) (ugh') (ugh') (ug/I) (ug/I) Phenol U U U U U 1 ST 50 Bis(2-Chloroethyl)Ether U U U U U 1 ST 5 I 2-Chlorophenol U U U U U 1 ST 5 1,3-Dichlorobenzene U U U U U 5 ST 5 1,4-Dichlorobenzene U U U U U 4.7ST 5 Benzyl Alcohol U U U U U ---- 50 I 1,2-Dichlorobenzene U U U U U 4.7ST 5 2-Methyiphenol U U U U U 50 bis-(2-Chloroisopropyl)Ether U U U U U ---- 5 I 4-Methyiphenol U U U U U ---- 50 N-Nitroso-Di-n-Propylamine U U U U U 50 Hexachloroethane U U U U U 5 ST 50 Nitrobenzene U U U U U 5 ST 5 I Isophorone U U U U U 50 GV 50 2-Nitrophenol U U U U U 50 2,4-Dimethylphenol U U U U U ---- 5 I Benzoic Acid U U U U U ---- 50 Bis-(2-Chloroethoxy)Methane U U U U U 5 ST 5 2,4-Dichlorophenol U U U U U 1 ST 5 I1,2,4-Trichlorobenzene U U U U U 5 ST 5 Naphthalene U U 5 J U U 10 GV 50 4-Chloroaniline U U U U U 5 ST 50 Hexachlorobutadiene U U U U U 5 ST 5 I 4-Chloro-3-Methylphenol U U U U U 1 ST 5 2-Methylnaphthalene U U U U U 50 Hexachlorocyclopentadiene U U U U U 5 ST 5 I2,4,6-Trichlorophenol U U U U U 1 ST 5 2,4,5-Trichlorophenol U U U U U 1 ST 5 2-Chloronaphthalene U U U U U 5 ST 5 I2-Nitroaniline U U U U U 5 ST 50 Dimethyl Phthalate U U U U U 50 GV 50 Acenaphthylene U U U U U 20 GV 50 2,6-Dinitrotoluene U U U U U 5 ST 5 I3-Nitroaniline U U U U U 5 ST 50 Acenaphthene U U U U U 20 GV 50 2,4-Dinitrophenol U U U U U ---- 5 IQUALIFIERS: NOTES: U: analyzed for but not detected GV:Guidance Value J:compound found below detection ST: Standard I --: Not established I ITABLE 4-15(cont.) TOWN OF SOUTHOLD LANDFILL GROUNDWATER SAMPLING SEMIVOLATILE ORGANICS I NYSDOH MW5DRE MW6S MW6D MW6DRE MW7S NYSDEC CLASS GA DRINKING 7/25/91 7/24/91 7/24/91 7/24/91 7/25/91 STANDARDS/GUIDELINES STANDARDS `SEMIVOLATILE COMPOUNDS (ug/I) (ug/I) (ugh!) (ug/I) (ug/I) (ug/I) (ug/I) I4_Nttopo1 U U U U U ---- 50 :Dibenzofuran U U U U U ---- 50 2,4-Dinitrotoluene u U U U U 5 ST 5 !Diethylphthalate U U U U U 50GV 50 +4-Chlorophenyl-phenylether U U U U U ---- 50 j Fluorene U u u U U 50 GV 50 14-Nitroaniline u u u U u 5 ST 50 4,6-Dinitro-2-Methylphenol u u u U u ---- 50 N-Nitrosodiphenylamine (1) u U u u u 50 GV 50 4-Bromophenyl-phenylether U U U U U 1 ST 50 IHexachlorobenzene u u u u u 0.35ST 5 Pentachlorophenol u u u u u 1 ST 5 I Phenanthrene u u U u U 50 GV 50 Anthracene U U u u U 50 GV 50 Di-n-Butylphthalate U U U u U 50 ST 5 Fluoranthene U u U u u 50 GV 50 Pyrene U U U U U 50 GV 50 Butylbenzylphthalate u u u U u 50 GV 50 3,3'-Dichlorobenzidine U U U u U 5 ST 5 Benzo(a)Anthracene U U U U U .002 GV 50 Chrysene U U U U U .002 GV 50 bis(2-Ethylhexyl)Phthalate U 4 J 8 BJ U 3 J 50 ST 50 Di-n-Octylphthalate u u U u u 50 GV 50 Benzo(b)Fluoranthene U U U U U .002 GV 50 Benzo(k)Fluoranthene U U U U u .002 GV 50 Benzo(a)Pyrene U U U U U ND ST 50 Indeno(1,2,3-cd)Pyrene U U U U U .002 GV 50 Dibenz(a,h)Anthracene u U u u u ---- 50 Benzo(g,h,i)Perylene u U U U U ---- 50 0 Unknown 10 J' 11 J' 10 J' 11 J' 34 J' ---- ---- Unknown 8 J' NP 28J* 10 J* NP ---- ---- Unknown 37 J* NP 27.1* 30J* NP ---- ---- Unknown NP NP 19 J* NP NP ---- ---- IUnknown NP NP 29 J' NP NP ____ __ __ Unknown NP NP NP NP NP Unknown NP NP NP NP NP ---- ---- Jnknown NP NP NP NP NP ---- ---- Unknown NP NP NP NP NP NP =___ ---- Unknown NP NP NP NP NP Unknown NP NP NP NP NP 'Unknown NP NP NP NP NP ---- ---- Unknown Aromatic 10J* NP NP NP NP ---- ---- Unknown Aromatic NP NP NP NP NP ---- ---- Unknown Aromatic NP NP NP NP NP ---- ---- Unknown Aromatic NP NP NP NP 1 NP ---- ---- Unknown Acid NP NP NP NP NP ____ __ __ Unknown Acid NP NP NP NP NP Jnknown Acid NP NP NP NP NP ---- ---- Unknown Acid NP NP NP NP NP ---- ---- IUnknown Acid NP NP NP NP NP ---- ---- Hexadecanoic Acid NP NP NP NP NP ---- ---- IQUALIFIERS: NOTES: U: analyzed for but not detected GV:Guidance Value B:compound found in blank as well ST: Standard as sample ----: Not established compound found below detectionI NP: not present limit ND: not detected I I I TABLE 4-15 TOWN OF SOUTHOLD LANDFILL GROUNDWATER SAMPLING SEMIVOLATILE ORGANICS I MW7D MW7DRE FB NYSDEC CLASS GA DRINKING 7/26/91 7/26/91 7/25/91 STANDARDS/GUIDEUNES STANDARDS I SEMIVOLATILE COMPOUNDS (ug/l) (ug/I) (ug/I) (ug/l) (ug/l) Phenol U U U 1ST 50 Bis(2-Chloroethyl)Ether U U U 1 ST 5 I 2-Chlorophenol U U U 1 ST 5 1,3-Dichlorobenzene U U U 5 ST 5 1,4-Dichlorobenzene U U U 4.7ST 5 Benzyl Alcohol U U U ---- 50 I 1,2-Dichlorobenzene U U U 4.7ST 5 2-Methylphenol U U U 50 bis-(2-Chloroisopropyl)Ether U U U ---- 5 I 4-Methylphenol U U U ---- 50 N-Nitroso-Di-n-Propylamine U U U 50 Hexachloroethane U U U 5 ST 50 Nitrobenzene U U U 5 ST 5 IIsophorone U U U 50 GV 50 2-Nitrophenol U U U ---- 50 2,4-Dimethylphenol U U U ---- 5 I Benzoic Acid U U U ---- 50 Bis-(2-Chloroethoxy)Methane U U U 5 ST 5 2,4-Dichlorophenol U U U 1 ST 5 I 1,2,4-Trichlorobenzene U U U 5 ST* 5 Naphthalene U U U 10 GV 50 4-Chloroaniline U U U 5 ST 50 Hexachlorobutadiene U U U 5 ST 5 I 4-Chloro-3-Methylphenol U U U 1 ST 5 2-Methylnaphthalene U U U 50 Hexachlorocyclopentadiene U U U 5 ST 5 I2,4,6-Trichlorophenol U U U 1 ST 5 2,4,5-Trichlorophenol U U U 1 ST 5 2-Chloronaphthalene U U U 5 ST 5 I2-Nitroaniline U U U 5 ST 50 Dimethyl Phthalate U U U 50 GV 50 Acenaphthylene U U U 20 GV 50 2,6-Dinitrotoluene U U U 5 ST 5 I3-Nitroaniline U U U 5 ST 50 Acenaphthene U U U 20 GV 50 2,4-Dinitrophenol U U U ---- 5 IQUALIFIERS: NOTES: U:analyzed for but not detected GV:Guidance Value J:compound found below detection ST: Standard I --: Not established TABLE 4-15(cont.) TOWN OF SOUTHOLD LANDFILL GROUNDWATER SAMPLING SEMIVOLATILE ORGANICS I NYSDOH MW7D MW7DRE FB NYSDEC CLASS GA DRINKING 7/26/91 7/26/91 7/25/91 STANDARDS/GUIDELINES STANDARDS SEMIVOLATILE COMPOUNDS (ugh!) (ug/I) (ugh!) (ug/I) (ugh!) -Nitrophenol U U u ---- 50 Jibenzofuran U U U ---- 50 2,4-Dinitrototuene U U U 5 ST 5 7iethytphthalate u u u 50 GV 50 4-Chtorophenyl-phenytether u u u ---- 50 Fluorene u U u 50 GV 50 I4-Nitroaniline U U U 5 ST 50 4,6-Dinitro-2-Methylphenol u u u 50 N-Nitrosodiphenylamine (1) u u u 50 GV 50 4-Bromophenyl-phenylether U u u I ST 50 Hexachlorobenzene U u u 0.35ST 5 entachlorophenol U u u 1 ST 5 -,henanthrene u u u 50 GV 50 IAnthracene U U U 50 Gv 50 Di-n-Butytphthalate U U U 50 ST 5 Fluoranthene U U U 50 GV 50 $Pyrene u u u 50 GV 50 Butylbenzylphthalate u U U 50 GV 50 3,3'-Dichlorobenzidine u u U 5 ST 5 Benzo(a)Anthracene u u U .002 GV 50 IChrysene U U U .002 GV 50 bis(2-Ethylhexyl)Phthalate 2 BJ U U 50 ST 50 ;Di-n-Octylphthalate u U U 50 GV 50 rBenzo(b)Fluoranthene U U u .002 GV 50 3enzo(k)Fluoranthene U u u .002 GV 50 Benzo(a)Pyrene U u U ND ST 50 Indeno(1,2,3-cd)Pyrene u U U .002 GV 50 Dibenz(a,h)Anthracene u u u ---- 50 Benzo(g,h,i)Perylene U U U ---- 50 Unknown 130J* 130J* NP ---- ---- Unknown NP NP NP ---- ---- Unknown NP NP NP ---- ---- Jnknown NP NP NP ---- ---- 'Unknown NP NP NP ---- ---- Jnknown NP NP NP ---- ---- Unknown NP NP NP ---- ---- Unknown NP NP NP ---- ---- Unknown NP NP NP Jnknown NP NP NP ---- ---- Jnknown NP NP NP ---- ---- Jnknown NP NP NP ---- ---- Unknown Aromatic NP NP NP ---- ---- Jnknown Aromatic NP NP NP ---- ---- Unknown Aromatic NP NP NP ---- ---- Unknown Aromatic NP NP NP ---- ---- Unknown Acid NP NP NP ---- ---- Unknown Acid NP NP NP ---- ---- Jnknown Acid NP NP NP ---- ---- Inknown Acid NP NP NP ---- ---- Inknown Acid NP NP NP ---- ---- exadecanoic Acid NP NP NP ---- ---- DUALIFIERS: NOTES: J:analyzed for but not detected GV: Guidance Value B:compound found in blank as well ST: Standard as sample ----: Not established compound found below detection NP: not present limit ND: not detected 1 - RN r r MI MI NE - E r - NM - E NE - MI NM TABLE 4-16 TOWN OF SOUTHOLD LANDFILL GROUNDWATER SAMPLING PEST/PCB'S NYSUGH MW1 S MW1 D MW2S MW2D MW3S MW3D MW4S MW4D NYSDEC CLASS GA DRINKING 7/25/91 7/25/91 7/24/91 7/24/91 7/25/91 7/25/91 7/26/91 7/26/91 STANDARDS/GUIDELINES STANDARDS ORGANIC COMPOUNDS (ugh!) (ugh!) (ug/l) (ug/I) (ugh!) (ug/I) (ug/I) (ug/I) (ug/I) (ug/I) alpha-BHC U U U U U U U U ---- 5 beta-BHC U U U U U U U U ---- 5 delta BHC U U U U U U U U ---- 5 gamma-BHC (Lindane) U U U U U U U U ---- ---- Hepatachlor U U U U U U U U ND ST 5 Aldrin U U U U U U U U ND ST 5 Heptachlor epoxide U U U U U U U U ND ST 5 Endosulfan I U U U U U U U U ---- 50 Dieldrin U U U U U U U U ---- 5 4,4'-DDE U U U U U U U U ND ST 5 Endrin U U U U U U U U ND ST 5 Endosulfan II U U U U U U U U ---- 50 4,4'-DDD U U U U U U U U ND ST 5 Endosulfan sulfate U U U U U U U U ---- 50 4,4'-DDT U U U U U U U U ND ST 5 Methoxychlor U U U U U U U U 35 ST 50 Endrin Ketone U U U U U U U U ---- ---- alpha-Chlordane U U U U U U U U 0.1 ST 5 gamma-Chlordane U U U U U U U U 0.1 ST 5 Toxaphene U U U U U U U U ND ST 5 Arochlor-1016 U U U U U U U U 0.1 ST 5 Arochlor-1221 U U U U U U U U 0.1 ST 5 Arochlor-1232 U U U U U U U U 0.1 ST 5 Arochlor-1242 U U U U U U U U 0.1 ST 5 Arochlor-1248 U U U U U U U U 0.1 ST 5 Arochlor-1254 U U U U U U U U 0.1 ST 5 Arochlor-1260 U U U U U U U U 0.1 ST 5 QUALIFIERS NOTES U: analyzed for but not detected GV: Guidance Value ST: Standard ----: Not established - MN r EN ON r NI NE - NE NE EN I EN - N r MN EN TABLE 4-16(cont.) TOWN OF SOUTHOLD LANDFILL GROUNDWATER SAMPLING PEST/PCB'S MW5S MW5D MW6S MW6D MW7S MW7D FB NYSDEC CLASS GA DRINKING 7/25/91 7/25/91 7/24/91 7/24/91 7/25/91 7/26/91 7/25/91 STANDARDS/GUIDELINES STANDARDS ORGANIC COMPOUNDS (ug/I) (ug/I) (ug/I) (ug/I) (ug/I) (ug/I) (ug/I) (ug/I) (ug/I) alpha-BHC U U U U U U U ---- 5 beta-BHC U 0.24 U U U U U ---- 5 delta BHC U U U U U U U ---- 5 gamma-BHC (Lindane) U U U U U U U ---- ---- Hepatachlor U U U U U U U ND ST 5 Aldrin U U U U U U U ND ST 5 Heptachlor epoxide U U U U U U U ND ST 5 1 Endosulfan I U U U U U U U ---- 50 Dieldrin U U U U U U U ---- 5 4,4'-DDE U U U U U U U ND ST 5 Endrin U U U U U U U ND ST 5 Endosulfan II U U U U U U U ---- 50 4,4'-DDD U U U U U U U ND ST 5 Endosulfan sulfate U U U U U U U ---- 50 4,4'-DDT U U U U U U U ND ST 5 Methoxychlor U U U U U U U 35 ST 50 Endrin Ketone U U U U U U U ---- ---- alpha-Chlordane U U U U U U U 0.1 ST 5 gamma-Chlordane U U U U U U U 0.1 ST 5 Toxaphene U U U U U U U ND ST 5 Arochlor-1016 U U U U U U U 0.1 ST 5 Arochlor-1221 U U U U U U U 0.1 ST 5 Arochlor-1232 U U U U U U U 0.1 ST 5 Arochlor-1242 U U U U U U U 0.1 ST 5 Arochlor-1248 U U U U U U U 0.1 ST 5 Arochlor-1254 U U U U U U U 0.1 ST 5 Arochlor-1260 U U U U U U U 0.1 ST 5 QUALIFIERS NOTES U: analyzed for but not detected GV: Guidance Value ST: Standard ----: Not established — M V — N N M E M N all a - MN N r r - - Table 4-17 ORGANIC COMPOUNDS DETECTED IN GROUNDWATER - PART 360 AND PHASE II INVESTIGATION AND USEPA SITE INSPECTION RESULTS (all results in ugh1) Chloro- 1,2-Dichloro- 1,4-Dichloro- 1,2-Dichloro- 1,2-Dichloro- Trans-1,2- Tetrachloro- benzene benzene benzene ethane propane Freon 113 Dichloroethane ethane Toluene Napthalene (5 ST) (4.7 ST) (4.7 ST) 0_511 0_511 1_71 (Total) (5 ST) (5 ST) (5 ST) (10 GV) New Monitoring Wells: MW-1S (U) ND ND ND ND ND NA ND ND ND ND MW-1D (U) ND ND ND ND ND NA ND ND ND ND MW-2S (D) ND ND ND ND ND NA ND ND ND ND MW-2D (0) 3J ND ND 4J ND NA ND ND ND ND MW-3S (D) ND ND ND 4J ND NA ND ND ND 7J MW-3D (D) ND ND ND ND ND NA ND ND ND ND MW-4S (D) ND ND ND ND ND NA ND ND ND ND MW-4D (D) ND ND ND 4J ND 8J ND ND ND ND MW-5S (D) ND ND ND ND ND NA ND ND ND ND MW-5D (D) ND ND ND ND ND NA ND ND ND ND MW-6S (D) ND 1 1 ND ND NA ND ND ND ND MW-6D (D) ND 1 ND 12* 11* NA ND ND ND 5J MW-7S (D) ND 1 1 ND ND NA ND ND ND ND MW-7D (D) ND ND ND ND ND NA ND ND ND ND USEPA Sample Locations: GW-1 (U) ND NA NA ND ND NA ND ND ND ND GW-2 (U) ND NA NA ND ND NA ND ND ND ND GW-3/GW-4 24/23* NA NA J/J 15/15* NA ND ND ND/J ND (S-68916) (D) GW-5 (D) ND NA NA ND ND NA ND ND ND ND GW-6 (D) ND NA NA ND 9* NA ND ND ND ND GW-7 (D) ND NA NA ND ND NA J J ND ND GW-8 (D) ND NA NA ND ND NA ND ND ND ND ST - Standard NA - Not Analyzed U - Upgradient GV - Guidance Value ND - Not Detected 0 - Downgradient J - Below Detection Limit S1483G COMPOUND CONCENTRATION COMPOUND CONCENTRATION COMPOUND CONCENTRATION 1,2 DCA ND 1,2 DCA ND 1,2 DCA ND 1,2 DCP ND 1,2 DCP 9 s 1,2 DCP ND CHBENZENE ND CHBENZENE ND CHBENZENE ND - ,7 -, .I. _______ GW-5 GW-5 A OREGON ROAD 111 GW-6 COMPOUND CONCENTRATION _ Ail -- 1,2 DCA ND 1,2 DCP ND CHBENZENE ND I A I CONCENTRATION GW-7 COMPOUND SHALLOW DEEP 1,2 DCA ND 4 J 1,2 DCP ND ND CHBENZENE ND ND _ CONCENTRATION \ i" COMPOUND SHALLOW DEEP III GNV-8 1 2 DCA ND _ 4 J • 1 2 DCP ND ND MW-4 CHBENZENE ND ND CV 3 CONCENTRATION MW-5 COMPOUND - GW-3 GW-4 • • 1,2 DCA J J 1,2 DCP 15 * 15s CONCENTRATION ti CHBENZENE i 24 * 23 * COMPOUND r I SHALLOW DEEP _ 1,2 DCA _ ND _ ND CONCENTRATION 1,2 DCP ND_ ND COMPOUND CHBENZENE ND ND SHALLOW DEEP - - - 1,2 DCA ND 12 * 1,2 DCP ND 11 * MW-2 CONCENTRATION CHBENZENE ND ND O COMPOUND • SHALLOW DEEP 1,2 DCA ND ND . 1,2 DCP ND ND GW-3,GW-4(S-68916) CHBENZENE ND ND MW-6 MW-3 \ \ 0 SOUTHOLD e " • COMPOUND CONCENTRATION LANDFILL _ SHALLOW DEEP 1,2 DCA _ _ ND ND_ 1,2 DCP ND ND CHBENZENE ND ND COMPOUND CONCENTRATION 1,2 DCA ND MW-7 1,2 DCP ND 421' CHBENZENE ND COMPOUND CONCENTRATION 1,2 DCA ND 1,2 DCP ND . CHBENZENE ND GW-2 I COMPOUND CONCENTRATION rlii SHALLOW DEEP 1 2 DCA ND ND .R, 1,2 DCP ND ND 1411CHBENZENE ND ND lik r MW-1 LEGEND NORTH (MIDDLE) ROAD DESCRIPTION I •DESIGNATION HYDROGEOLOGIC INVESTIGATION GROUNDWATER S-68916 MONITORING WELL AND SAMPLING LOCATIONS • USEPA GROUNDWATER SAMPLING LOCATIONS GW-1 I` 1,2 DCA 1,2 DICHLOROETHANE _ 1,2 DCP 1,2 DICHLOROPROPANE CHBENZENE CHLOROBENZENE ND NOT DETECTED * _ PRESENT ABOVE STANDARDS DIRECTORY: C:\1027 0 400 J ESTIMATED VALUE BELOW DETECTION LIMIT FILE NAME: ORGST DATE: SEPT 1991 �..�..` NOTE SCALE: 1-1 SCALE IN FEET DESIGNER: L.V.G. ALL RESULTS IN ug/I TOWN OF SOUTHOLD clisDvirka SOUTHOLD LANDFILL and ORGANIC COMPOUNDS EXCEEDING CLASS GA -Di Bartilucci CONSULTING ENGINEERS GROUNDWATER STANDARDS IN GROUNDWATER FIGURE 4-22 4.5.4.2 - Inorganic Sampling Results ' The inorganic constituents detected in groundwater samples are listed in Table 4-18. Iron, manganese, magnesium and sodium were the metals found to exceed New York State Standards Guidelines for Class GA groundwater in a number of samples. The highest concentrations of magnesium and sodium were found in monitoring well ' MW-2D, while the highest level of manganese was found in well MW-3D. Both of these wells are directly downgradient of the existing landfill. Elevated levels of these metals were also found in the corresponding shallow wells, MW-2S and MW-3S, but in lesser concentrations. The highest level of iron was found in monitoring well MW-7D and to a lesser degree in MW-6S . No metals ' were detected exceeding standards in the northernmost shallow wells MW-5S and MW-4S. This confirms the geophysical findings of a dense but chemically weak plume of conductive groundwater emanating from the landfill and sinking beneath the screen zones (water table) of shallow wells MW-4S and MW-5S as the groundwater migrates off-site in a northwesterly direction. The concentrations of metals in MW-4D and MW-5D are consistently s stently lower than those ' found in the downgradient wells located adjacent to the landfill (MW-2 and MW-3 well clusters), which indicates attenuation of the plume with distance downgradient. Data collected from ' monitoring well clusters MW-2 and MW-3 show consistently higher levels of metals in the deep wells at these locations which indicates that the bulk of the plume has migrated downward to the top of the clay surface. The well screen intervals were superimposed onto the conductivity logs ' and included on the site plan as shown in Figure 4-23. The results indicate that the plume extends down to screen zones at both MW-4D and MW-5D, which makes these wells effective for ' monitoring the plume at the site boundary. ' The results of previous private well sampling investigations downgradient of the landfill along Cox Lane and Oregon Road confirm attenuation of the leachate plume and little or no impact on groundwater quality off-site. Magnesium and manganese were all found in concentrations below the New York State Class GA standards and guidelines in off-site wells. Sodium was found to contravene standards at private well GW-7 (27.4 mg/1), which is roughly six ' time less than the concentrations found at the site boundary (MW-4 and MW-5). Sodium was also present in upgradient wells MW-1S and MW-1D at a concentration of 41.6 mg/1 and 16.3 mg/1, ' respectively, which indicates that groundwater quality downgradient of the landfill is representative of background conditions. ' s I 206 4-69 TABLE 4-18 I TOWN OF SOUTHOLD LANDFILL GROUNDWATER SAMPLING INORGANIC CONSTITUENTS I NYSDOH MW1S MW1D MW2S MW2D MW3S MW30 MW4S MW4D NYSDEC CLASS GA DRINKING 7/25/91 7/25/91 7/24/91 7/24/91 7/25/91 7/25/91 7/28/91 7/28/91 STANDARDS/GUIDELINES STANDARDS liARAMETERS (mg/I) (mg/I) (mg/I) (mg/I) (mg/I) (mg/I) (mg/I) (mg/I) (mg/I) (mg/I) olor, Pt/Co. 10 10 50 75 r 75 50 10 125 - - Turbidity,N.T.0 255 26 244 17.5 1820 75 700 24 - - 11 Results in mg/I kalinity 13 46 689 192 682 707 6 546 - - U - Ammonia Nitrogen 0.17 0.09 >:«4!'�'.`E: > >:;$$;0s> c*<�R33'r# :::.....:�•.:: �>: :: ST iochemical Oxygen Demand 5 U3•:>::.>....::>:.>:u;;;:;:...:::•:»:8 u;;::::.. U u:;;:;:.. - - Ihemical Oxygen Demand 7 U 189 143 170 92 104 93 - 133 :N '4:::*: 5 250 ST - C Chloride 26 24 hlor ardness 26 100 390 620 530 640 32 650 - �trate 0.15 1.69 0.34 U 0.89 U 0.64 0.91 10 - Phenol ;:: 030:::< c0014> ;;:;4420:`:<::flQ�:>:;:;042;:;: '::.:0, tfi:.::..:.:>.:E,.:'43:.:0.::s:':`>LQ3C::: 0.001 ST 0.05 Iulfate 20sa;:;.....: 77 71 56 78 25 153 250 ST otal Kjeldahl Nitrogen 0.40 2.69 100 90 46.1 30.4 1.18 37.8 - IONSTITUENTS(mg/I) - luminum 0.501 0.612 1.49 0.146 B 0.410 0.196 B U 0.30 Antimony U U U U U U U U 0.003 ST - rsenic U U U U U U U U 0.025 ST 0.05 avium 0.088 B 0.030 B 0.198 B 0.284 0.282 0.133 B U 0.155 B 1ST 1 Beryllium U U U U U U U U - - admium U U U U U U U U 0.01 ST 0.01 alcium 11.5 22.8 76.2 106 118 125 9.08 133 - - Chromium U U U U U U U U 0.05 ST 0.05 olbalt U U U 0.032 B U 0.077 U U - opper U 0.012 B 0.021 B U U U U U 0.2 ST - 7 Iron '<:::1�.+�i:;..:::::: :::: :::�:.�.�..>:z::•:;�.>.:B::::::::::::4.'+55:s`...:::::::�::::: .:::g:::: : 0.05 1(41ead U 0.013 0.004 U U U U 0.005 0.25 ST - agnesium 7.74 9.22 22.0 :;::;63:3 :'.ii; 32.8 'rT:B 0 1.95 B OG 3j::: 35 GV - 040 - 0 0.3 S an anew >it ';<; 0.243 :: 43#�<:z:::>z<:�,:89;i�'i:<:>>2t�?» :•.:....�....•. :::::.-•....:. . ercury U U U U U U U U 0.002 ST 0.002 ickel U U U 0.079 U 0.038 B U U - - otassium 2.38 B 2.09 B 93.5 130 72.5 84.0 3.3313 53.8 - - Selenium U U U U U U U U 0.01 ST 0.01 liver U U U U U U U U 0.05 ST 0.05 ium Millen..:, 18.3 3's3s>it::;:>:>::>>:<:242'< >`;?�.t�:<>E:::•:..b'::•::. 2.40B 20S - Thallium U U U U U U U U 0.004 ST - It anadium U U U U U U U U - - no 0.016B 0.038 0.0178 0.0178 U 0.019B U U 0.3ST - I Cyanide U U U U U U U U 0.1 ST - Ioron U U U .938 .614 .826 U .617 1 ST - Results in mg/kg 1 TOC 9.1 7.4 225 253 233 192 4.0 135 - - 'QUALIFIERS: NOTES: U:Analyzed for but not detected GV:Guidance value TOC:Total Organic Carbon ST:Standard I B:value less than contract -:Not established required limits but greater than :::;:value exceeds allowable standard/guidance value instrument detection limits. TABLE 4-18(cont.) I TOWN OF SOUTHOLD LANDFILL GROUNDWATER SAMPLING INORGANIC CONSTITUENTS I NYSDOH MW5S MW50 MWBS MW6D MW7S MW7D FB NYSDEC CLASS GA DRINKING 7/25/91 7/25/91 7/24/91 7/24/91 7/25/91 7/26/91 7/25/91 STANDARDS/GUIDELINES STANDARDS 1ARAMETERS (mg/I) (mg/I) (mg/I) (mg/I) , (mgA) (mg/I) (mg/I) (mg/I) (mg/I) color,Pt/Co. 15 15 35 50 15 250 10 - - urbidity,N.T.0 495 13.5 113 3.8 154 516 0.28 - - Results in mgA !Alkalinity 8 230 267 401 46 60 1 - - ................................... ................................... imonis Nitrogen U U : :12). 10.1m 0.15 0.10 U 2 ST ochemical Oxygen Demand U 353 U..... 5..... U U U - - iChemical Oxygen Demand 24 492 41 41 U 32 U - hloride 14 115 42 150 13 74 U 250 ST - ardness 16 290 160 396 78 50 U >+itrate U 0.21 0.13 0.05 1.39 ,:ii.:-.1t 9 <; 0.17 10 - ................. P henol >fl`d24»:>z9420z> > :11,10 :i, U .:::.II 0.001 ST 0.05 ulfate70 128 157;;: 26 49 2 250 ST - otal Kjeldahl Nitrogen 0.23 1.18 13.15 21.6 1.56 12.7 U IONSTITUENTS(mg/I) - - luminum 0.460 0.319 0.754 U 0.664 8.86 U Antimony U U U U U U U 0.003 ST - rsenic U U U U U U U 0.025 ST 0.05 arium U 0.058 B 0.140 B 0.134 B 0.072 B 0.110 B U 1ST 1 Beryllium U U U U U U U - admium U U U U U U U 0.01 ST 0.01 alcium U 51.1 42.3 80.4 15.6 109 U - - Chromium U U U U U 0.021 U 0.05 ST 0.05 olbalt U U U U U U U - - opper U U U U U 0.022 B U 0.2 ST - :::1 ::»>::.t1 58:::::::2.Z 19.2.... U Iron :flQST< :>�'1> :::: ...::::�. ::::.::::. :: :::::::::::::.:.: ..:::::. :::::::: 0.3 ST !ad 0.005 0.008 0.016 U U 0.016 U 0.25 ST 0.05 agnesium 2.16 B 28.7 11.1 :l:39;3:;:l 3.49 B 8.27 U 35 GV - 1 >: 0 >:iii 41. : - Man Manganese 0.1 0 <:>4)>e23':z<::: l l :: '<><:1:3`q:::::,:....A56.........1.49:.:.. 0.3 ST 9 ercury U :;::;•;:U:;;;:...::::::U�:::....*::::.0::::....::::::u:::::.... :::.u:::::... U 0.002 ST 0.002 skel U U U 0.051 U U U - - aesium U 3.77 42.5 44.8 5.31 3.92 B U - enium U U U U U U U 0.01 ST 0.01 Iver U U U U U U U 0.05 ST 0.05 16.6 - yodi um 2 :�82:x:;<� 8fz�'> < >:.:'l..4: : 883�> 20 ST U U U U UIhaflium U U 0.004 ST anadium U U U U U 0.031 B U - - I Zinc U 0.049 0.020 0.014 B U 0.067 U 0.3 ST - vanide U U U U U U U 0.1 ST aron U .221 .159 .393 U U .538 1 ST - Results in mg/kg OC 2.2 149 92.9 78.6 48.6 12.9 U - - .UALIFIERS: NOTES: Analyzed for but not detected GV:Guidance value IC:Total Organic Carbon ST:Standard ialue less than contract -:Not established required limits but greater than s Value exceeds allowable standard/guidance value instrument detection limits. Cl °D 0cp ii f21 \\ as `; , ,� \ , n_________ ,,,_,,,v 00-›------ ----A(\\\\ \ L _ ' A " 1\ 0 v v 0 �� 11 1\\ o0. ..■.� ' �wo� F \� rill F .41/ \\ u Q \\ \w i. \\\ I I I:,, 7.... ,I� \\\ — MW-4� � \` \ \ �l o o \\\\\��. — �� s00 t \ \�o O o Q�� \\ I\ :1 '/ ' '-'-- ----:—s MW—(5)1:::" 5 � - 2 0 \ \t: - IILL ,_______ 111 � _ \ \\o __- 4/ _J� III \ \. ___ .z...-_- j � 11 l \\ I EXISTING`a'NINO AREA 1111111111111111=1111111\�� ��� ` es�YM� \ o iif4.� I \ ' 60A11411111111111111 \) , li Illii i mw—2 6...11._____T\ , lUll MW-3 '�� 111111 E . = — \ \ MW-6 I 1 I \` i ( L/ 1\ \ m 11 �� i I 1 OVERHEAD -__ 1 \ ��� ( I _ri_ \ MW-7 LINES ELECTRIC - . / \ - - / r-• \ a : . 1 �___ , ,,, , , \ ,,,/ i \ \ . — ---- ,' \► fir �-�\o �� \ WASTE OIL / \ _ STORAGE \ : <,---, -7 ®�i�M� - ))A'3 ; I1! ' �� Oc:n, \ 49/ , ,., 1 D _ RO 01`1\d :11, �` o�NTY LEGENDSource: HAGER -RICHTER ',',✓_ Ic ei\,)\\ GEOSCIENCA INC. o i `nI oQMW-1� BEI ! !NE LANDFILL SIT GEOPHYSICAL SURVEY, II- j•���/)� 7.\_ AUGUST, 1991 0 —x—x—*- \\\ \\ S -69761•• EXISTING GROUND WATER — MONITORING WELL . Mil \\ . �' \\ M W- 1 •• GROUND WATER \\ MONITORING WELL CLUSTER NORTH s IIIJII • \ \\\ ® WELL SCREEN INTERVAL \ 0 300 SCALE IN FEET TOWN OF SOUTHOLD SOUTHOLD LANDFILL and CONDUCTIVITY LOGS AND • b WELL SCREEN INTERVALS V FIGURE 4-23 ' Iron was found at a concentration of 1.55 mg/1 at private well GW-7, which is directly downgradient of monitoring well MW-4D where it was found at a concentration of only 0.518 mg/1. Similar to sodium, iron concentrations in the upgradient wells MW-1S and MW-ID are elevated and above standards (1.35 mg/1 and 0.99 mg/1, respectively). Although it is possible that the elevated levels of iron and sodium present in well GW-7 are the result of the leachate plume, the presence of these metals at similar elevated concentrations in upgradient wells makes it appear more like ambient conditions. Selenium wasfound to exceed the NYSDEC Class GA standard u of 0.01 mg/1 in wells S-68916, WS-6 and WS-10 (see Figure 4-3) during previous sampling investigations. Selenium was undetected in groundwater samples collected as part of this investigation. Selenium was detected in two rounds of sampling in well S-68916 but was not detected in two subsequent sampling rounds. Relatively high levels of 12.0 mg/1 and 23.0 mg/I of selenium were found in wells WS-6 and WS-10, respectively. Well WS-6 is located upgradient of the landfill. Well rWS-10 is located too far west of the landfill to be considered either up or downgradient of the landfill. The presence of selenium in wells WS-6 and WS-10 is, therefore, due to other sources or was an isolated occurrence. A comparison of upgradient water quality (MW-IS) to downgradient water quality at the site boundary (MW-4S and MW-5S) indicates higher levels of metals (iron, manganese and ' sodium) exceeding standards upgradient of the landfill in the water table wells as compared to downgradient. Although metal concentrations were elevated at the downgradient site boundary at the deep well locations, the levels were generally lower or equal to those found in the remainder of ithe on-site monitoring wells. ITable 4-19 shows the metals found to contravene NYSDEC Class GA standards and guidelines in groundwater samples collected a part of this investigation as well as the recent USEPA site inspection. All inorganic constituents found to exceed standards were summarized and presented in Figure 4-24. Phenol was not included in this figure because it was found in ' uniform concentrations in all wells sampled (both upgradient, on-site and downgradient) and, therefore, does not aid in the characterization of the plume. Copper was detected slightly above standards in upgradient well GW-1 but was not found elsewhere contravening standards. Similarly, zinc was detected at a concentration above NYSDEC standards in downgradient supply well GW-5 but at a low concentration throughout the remainder of the study area. The results of the USEPA sampling program indicate that there is no impact from the landfill due to metals in downgradient water supply wells. As previously discussed, the only metals found to exceed S I206G 4-73 1 1 1 1 1 1 1 1 1 1 1 1 1 1 x 1 1 1 1 Table 4-19 METALS EXCEEDING STANDARDS/GUIDELINES IN GROUNDWATER PART 360 AND PHASE II INVESTIGATION AND USEPA SITE INSPECTION RESULTS (all results in mg/1) Iron Magnesium Manganese Sodium Copper Zinc Well New Monitoring Wells (0.3 ST) 05_6111 GV) (0.3 ST) (20 ST) (0.2 ST) (0.3 ST) Depths (ft) 1 MW-1S (U) 1.35* 7.74 0.620* 41.6* ND 0.016 52 MW-1D (U) 0.988* 9.22 0.243 16.3 0.012 0.036 152 MW-2S (D) 5.85* 22.0 4.0* 75.9* 0.021 0.017 27 1 MW-2D (D) 1.78* 63.2* 9.89* 202* ND 0.017 85 MW-3S (D) 1.55* 32.8 21.7* 135* ND ND 55 MW-3D (D) 5.39* 57.8* 23.5* 155* ND 0.019 125 MW-4S (D) 0.079 1.95 0.040 2.40 ND ND 73 MW-4D (0) 0.518* 60.3* 1.42* 167* ND ND 150 MW-5S (D) 0.757* 2.16 0.110 8.12 ND ND 77 MW-5D (D) 1.03* 28.7 0.627* 62.6* ND 0.049 136 MW-6S (D) 17.5* 11.1 1.59* 85.7* ND 0.020 56 MW-6D (D) 0.758* 39.3* 13.4* 114.0* ND 0.014 145 MW-7S (D) 2.24* 3.49 0.455* 16.6* ND ND 50 MW-7D (D) 19.2* 6.27 1.09* 88.6* 0.022 0.067 125 USEPA Sample Locations: GW-1 (U) 0.335* J 0.367* 27.1* 0.213* 0.024 90 GW-2 (U) 3.44* 9.57 J 21 .7* 0.084 0.297 -- GW-3/GW-4 (S-68916) (D) 10.1*/9.72* 43.4*/42* 3.02*/2.9* 158*/153* 0.031/0.031 0.197/0.195 102 GW-5 (D) 0.246 12.4 J 12 0.156 0.405* -- GW-6 (0) 0.284 9.14 J 8.73 0.185 0.038 85 GW-7 (D) 1.55* 19.2 J 27.4* ND 0.214 101 GW-8 (D) J J ND 8.67 0.059 0.022 90 ST - Standard D - Downgradient ND - Not Detected GV - Guidance Value U - Upgradient J - Below Detection Limit *Exceeds Standard/Guidance Value S1483G CONSTITUENT CONCENTRATION CONSTITUENT CONCENTRATION CONSTITUENT CONCENTRATION Fe 0.246 Fe 0.284 Fe _ J Mg 12.4 Mg 9.14 _ Mg J Mn J Mn J _ Mn ND Na 12 Na 8.73 Na 8.67 kph,-'7 Zn 0.405 * Zn 0.038 Zn 0.022 AMMONIA NA -7NNN1/4AMMONIA NA AMMONIA NA - NITRATE NA NITRATE NA NITRATE NA CHLORIDE NA CHLORIDE NA CHLORIDE NA 'V -.____ iiii �_ GW-5 OREGON ROAD CONSTITUENT CONCENTRATION Fe 1.55 * 1 it GW-6 Mg 19.2 Mn J11111111111 Na 27.4 Zn 0.214 AMMONIA NA NITRATE NA • CHLORIDE NA • I GW-7 CONCENTRATION CONSTITUENT SHALLOW DEEP Fe 0.079 0.518 « Mg 1.95 60.3 * Mn 0.040 1.42 Na 2.40 167 * Zn ND ND AMMONIA ND 34.6 * A GW-8 NITRATE 0.64 0.91 CHLORIDE 5 290 * MW-4 CONCENTRATION SHALLOW DEEP CiP CONCENTRATION Fe 0.757 * 1.03 * CONSTITUENT MW-5 Mg 2.16 28.7 SHALLOW DEEP Mn 0.110 0.627 * Na 8.12 62.6 * Fe 5.85 * 1.78 * • • Zn ND 0.049 Mg 22 63.2 * AMMONIA ND ND Mn 4.0 * 9.89 * NITRATE ND 0.21 ti Na 75.9 * 202 * CHLORIDE 14 115 o Zn 0.017 0.017 Q o AMMONIA 92.8 s 88.0 * NITRATE 0.34 ND CONCENTRATION CHLORIDE 133 333 * CONSTITUENT I I SHALLOW DEEP Fe 1.55 * 5.39 * CONCENTRATION MW-2 Mg 32.8 57.8 * CONSTITUENT - GW-3 GW-4 • • Mn 21.7 * 23.5 Na 135 * 155 Fe 10.1 * 9.72 * Zn ND 0.019 Mg 0.064 0.076 �. AMMONIA 38.3 * 26.1 Mn 3.02 * 2.90 * GW-3,GW-4(S-68916) NITRATE 0.89 ND Na 158 * 153 * CHLORIDE 293 * 274 * Zn 0.197 0.195 * MW-6 MW-3 AMMONIA NA _ NA SOUTHOLD 43)NITRATE NA NA •O CONCENTRATION CHLORIDE NA NA LANDFILL CONSTITUENT SHALLOW DEEP CONCENTRATION Fe 2.24 * 19.2 * CONSTITUENT Mg 3.49 6.27 SHALLOW DEEP Mn 0.455 * 1.09 * Na 16.6 88.6 * Fe 17.5 * 0.758 Zn ND 0.067 Mg 11.1 39.3 * AMMONIA 0.15 0.10 Mn 1.59 * 13.4 * NITRATE 1.39 11.9 * _ Na 85.7 * 114 * MW-7 CHLORIDE 13 74 Zn 0.020 0.014 el AMMONIA 12.5 * 18.2 NITRATE 0.13 0.05 CONSTITUENT CONCENTRATION CHLORIDE 42 150 I Fe 3.44 * Mg 9.57 CONSTITUENT CONCENTRATION Mn J Na 21.7 Fe 0.335 * A...- Zn 0.297 M. J ' 111GW-2AMMONIA NA Mn 0.367 * NITRATE NA Na 27.1 hi. �� CHLORIDE NA Zn 0.024 AMMONIA NA NITRATE NA LEGEND CHLORIDE NA DESIGNATION DESCRIPTION CONCENTRATION II 111,31% e • HYDROGEOLOGIC INVESTIGATION GROUNDWATER CONSTITUENT SHALLOW DEEP ..� S-68916 MONITORING WELL AND SAMPLING LOCATIONS Fe 1.35 * 0.988 * MW-1 ___-_ . Mg 7.74 9.22 GW-1 USEPA GROUNDWATER SAMPLING LOCATIONS F Mn 0.62 * 0.24 NORTH (MIDDLE) ROAD Na 41.6 * 16.3 Fe IRON Mg MAGNESIUM Zn 0.016 0.036 Mn MANGANESE AMMONIA 0.17 0.09 NITRATE 0.15 1.69 Na SODIUM CHLORIDE 26 24Zn ZINC + AMMONIA AMMONIA NITRATE NITRATE CHLORIDE CHLORIDE NDNOT DETECTED NA NOT ANALYZED J PRESENT BUT BELOW DETECTION LIMIT DIRECTORY: C:\1027 FILE NAME: INORGST 0 400 * PRESENT ABOVE STANDARDS/GUIDELINES DATE: SEPT 1991 . ..� NOTE SCALE: 1,--.1 SCALE IN FEET DESIGNER: S.P.B. ALL RESULTS IN ug/I TOWN OF SOUTHOLD 41-1- Dvirka SOUTHOLD LANDFILL and INORGANIC CONSTITUENTS EXCEEDING CLASS GA CONSUl.T1NG EN 0-) BartNQENGINNEERS GROUNDWATER STANDARDS/GUIDELINES IN GROUNDWATER FIGURE 4-24 NYSDEC Class GA standards, excluding zinc, were iron and sodium, which were found in supply well GW-7; however, these metals also exceeded standards in the upgradient wells. Therefore, it appears that the plume is fairly limited in areal extent and does not extend a significant distance downgradient of the landfill boundary. 4.5.4.3 - Leachate Parameter Sampling Results P E Leachate parameters found to contravene NYSDEC Class GA groundwater standards include ammonia, chloride, nitrate and phenol. Sample results are shown in Table 4-18. Phenol was found to contravene standards in all of the monitoring wells sampled. Phenol was found in uniform concentrations ranging from 0.010 to 0.030 mg/1, as compared to the NYSDEC Class GA groundwater standard of 0.001 mg/1, but is well below the New York State Department of Health (NYSDOH) drinking water standard of 0.050 mg/1. Previous analytical data for phenols is quite limited but was found in slightly elevated concentrations in Suffolk County wells S-68916 (0.002 mg/1) and S-68831 (0.004 mg/1). Both these wells are located downgradient of the former scavenger waste lagoons. Since phenol was found in elevated concentrations both upgradient and downgradient of the landfill, and in both the shallow and deep portions of the aquifer, it is likely that its presence is indicative of background conditions at the site. Ammonia was found exceeding the NYSDEC Class GA groundwater standard of 2 mg/1 at monitoring wells MW-2S and MW-2D (92.8 and 88.0 mg/1), MW-3S and MW-3D (38.3 and 26.1 mg/1) and MW-4D (34.6 mg/1). Ammonia was undetected in shallow well MW-4S. These elevated levels are most likely due to the leachate plume identified previously in the discussion concerning metals in groundwater. It is important to note that the concentration found in I monitoring well MW-4D (located directly downgradient of MW-2D) is roughly half that found in monitoring well MW-2D. Again, this indicates an attenuation of the plume as it migrates off-site. Chloride, although not toxic, is a good leachate indicator since its presence corresponds closely with areas of elevated metal concentrations as well as areas of elevated ammonia. Chloride was found in concentrations contravening the NYSDEC Class GA groundwater standard of 250 mg/1 at 1 monitoring wells MW-2D (333 mg/1), MW-3S (293 mg/1), MW-3D (274 mg/1) and MW-4D (290 mg/1). Nitrate was found in contravention of the NYSDEC guideline of 10 mg/1 in monitoring well MW-7D (11.9 mg/1). The concentrations in the remaining wells were generally low and ranged from undetected in wells MW-2D,MW-3D and MW-5S,to 1.69 mg/1 in upgradient well MW-1D. 1 ' s 12066 4-76 1 Groundwater samples collected during the USEPA site inspection were not analyzed for leachate parameters except for phenol. Phenol was not detected in any groundwater sample collected during the site inspection. However, previous analytical results obtained four downgradient private supply well Nos. 2, 3 and 4 (see Figure 4-3) show levels of ammonia, nitrate, ' chloride and phenol below NYSDEC Class GA standards. Nitrate was found above groundwater standards in upgradient wells S-69761 and S-76687, as well as upgradient private supply wells WS-4, WS-6, WS-7 and WS-9. Therefore, based on the results of this investigation, leachate has ' not caused an impact on downgradient water supply. I 1 I I 1 S I206c 4-77 1 I � 2I 0 I N ' 5.0 CONCLUSIONS ' Based on the analytical results of the Part 360 and Phase II Hydrogeologic Investigation groundwater and subsurface soil sampling programs presented in Section 4.5 of this report, the following conclusions are presented. o Groundwater - The only organic compounds found to exceed NYSDEC Class GA ' groundwater standards/guidelines were 1,2-dichloroethane and 1,2-dichloropropane at low levels. 1,2-Dichloropropane was found is previous investigations upgradient and downgradient of the landfill. 1,2-Dichloroethane was found only in deep wells MW-6D and S-68916 located just downgradient of the former scavenger waste lagoons. With regard to TAL inorganics, only iron, magnesium, manganese and sodium were found to exceed groundwater standards/guidelines. The distribution of these metals is ' well defined and appears to indicate a weak plume emanating from the landfill. It must be noted, however, that essentially all of these metals were present in upgradient wells in contravention of standards/guidelines, and downgradient water supply sampling ' results were indicative of background conditions. Iron and sodium were found to exceed standards in downgradient supply well GW-7 ' sampled during the USEPA site inspection. Zinc was also found to exceed standards in downgradient supply well GW-5 but was not found in any on-site water samples. Well GW-7 is located directly downgradient of well MW-4D where iron, magnesium, manganese and sodium were all found to exceed standards. The elevated levels of iron and sodium in well GW-7 may be attributable to the leachate plume emanating from the landfill, although the presence of elevated levels of these metals upgradient suggest ambient water quality. Leachate parameters which exceeded groundwater standards/guidelines included ammonia, nitrate and phenol. As with the metals, the distribution of these parameters ' define a limited plume from the landfill. Nitrate was found to contravene standards only in downgradient well MW-7D, whereas phenol was found in all monitoring at relatively uniform concentrations indicating background conditions. ' o Soil - Only one subsurface soil sample was collected as part of this investigation. The sample was colleted from well cluster MW-6 from a depth of 11-13 feet. Volatile compounds detected include 2-propanone, 1,2-dichlorobenzene and 1,3-dichloro- benzene although at levels considered insignificant for soil. No toxic metals were detected at levels posing a threat to groundwater. Overall Assessment As a result of samples obtained during the Part 360/Phase II investigation, based on leachate indicators and a few metals, it appears that there is a weak, limited plume emanating from the Southold landfill. The plume is dense and appears to be migrating along the clay interface. Previous water quality sampling of off-site private wells indicate groundwater quality comparable to background (upgradient) conditions, although elevated levels of iron and sodium were found S 1471 5-1 I I above standards in downgradient well GW-7. It is uncertain whether the presence of these metals is due to the leachate plume or representative of background conditions since these metals were found in elevated concentrations in upgradient wells MW-1S and MW-1D. Contaminants found in soil samples obtained from the former scavenger waste lagoon as Ipart of the USEPA site inspection show elevated levels of one semivolatile compound (chloroanaline) and a few metals. Although the elevated metals were found to contravene Istandards/guidelines in some on-site wells, none of the organics found in soil in the former lagoons were found in groundwater beneath the landfill site. I I I I I I I 1 I I I 1 I S1471G 5-2 I I mcn I ge I 0) I • II I I I I I 1 I I I I I I 1 6.0 RECOMMENDATIONS ' The March 1991 USEPA site inspection report gave the Southold landfill site a recommendation of "Low Priority for Further Action." This recommendation was based on an analysis of the potential for contamination of domestic supply wells in the area, the potential for nearby residents to be exposed to hazardous substances through air releases (primarily methane) and the potential for direct contact with contaminated soil. The results of the Part 360 and Phase II Hydrogeologic Investigation confirm the findings of ' the USEPA site inspection report, as well as those of previous investigations. The findings of the Part 360/Phase II investigation indicate that a weak plume is emanating from the landfill, but is limited, in that the plume has not caused any observable impacts to downgradient water quality in any off-site water supply wells. It is felt that the 14 newly installed monitoring wells as part of this investigation provide an adequate and comprehensive groundwater monitoring network, eliminating the need for further drilling and sampling activities in the foreseeable future. ' Therefore, continued routine, long-term sampling of this monitoring network is recommended in order to provide sufficient data to fulfill the Part 360 landfill closure and expansion requirements. The long-term monitoring plan is designed to fulfill the Part 360 requirements for landfill closure. In developing this plan, all sampling data obtained from the Part 360 and Phase II investigation, as well as all previous investigations, was evaluated to determine the most reasonable and cost-effective approach to continued monitoring at the Southold Landfill. The Part 360 requirements call for all environmental monitoring points notP reviously ' sampled to be sampled and analyzed for two rounds of quarterly sampling. The first round of sampling was performed for baseline parameters. The second round of sampling will be performed for routine parameters. Although elevated levels of contaminants were detected just downgradient of the landfill calling for additional rounds of baseline sampling (as specified in Part 360), the existing data base is considered sufficient so that the second and subsequent rounds of sampling be performed for select routine parameters. Sampling frequency will be semiannually for the first year and annually thereafter. This second round of sampling is primarily designed to confirm the results of the first (baseline) round of sampling. Sampling parameters for both and subsequent rounds are presented in Table 6-1. S 1464 6-1 I ITable 6-1 SOUTHOLD LANDFILL HYDROGEOLOGIC INVESTIGATION BASELINE AND ROUTINE PARAMETERS TO BE ANALYZED I Second and Subsequent First Round Closure Rounds Closure of I of Existing Landfill Existing Landfill Parameters to be Analyzed(1) (Baseline)-Completed* (Routine) I1. Field Parameters Static Water Levels X X Specific Conductance X x I Temperature X X Floaters or Sinkers(2) X pH X X I Eh X X Field Observations(3) X X I2. Leachate Indicators Total Kjeldahl Nitrogen (TKN) X Ammonia X X I Nitrate X X Chemical Oxygen Demand (COD) X Biochemical Oxygen Demand (BOD) X I Total Organic Carbon (TOC) X Sulfate X Alkalinity X Phenols X I Chloride X X Total Hardness (as CaCO3) X Turbidity X X I Color X Boron X I3. Metals Potassium X Sodium X X I Iron X X Manganese X X Magnesium X x I Lead X Cadmium X Aluminum X I Calcium X Toxic Metals I Antimony X Arsenic X Beryllium X I Barium X Cadmium X Chromium(total) X S14640 6-2 ' Table 6-1 (continued) SOUTHOLD LANDFILL HYDROGEOLOGIC INVESTIGATION 1 BASELINE AND ROUTINE PARAMETERS TO BE ANALYZED Second and Subsequent 1 First Round Closure of Existing LandfillRounds Closure of Existing Landfill Parameters to be Analyzed(1) (Baseline)-Completed* (Routine) Chromium - Hexavalent(4) Copper X Lead X Mercury X Nickel X Selenium X I Silver X Thallium X Zinc X Cyanide X 4. Volatile Organics(5) X X (1) All samples must be whole and unfiltered,except as otherwise specified by NYSDEC. (2) Any floaters or sinkers found must be analyzed separately for baseline parameters. (3) Any unusual conditions (colors, odors, surface sheens, etc.) noticed during well development,purging or sampling must be reported. (4) Since chromium has not been detected in previous sampling, hexavalent chromium was not analyzed for as part of this investigation. (5) Volatile organics are to be analyzed using EPA Methods 601/602. *Not all parameters in Part 373-2,Appendix 33 are analyzed under TCL+30. I 1 ' S1464G 6-3 All compounds/analytes detected in groundwater during this investigation that were found at concentrations exceeding standards are included in Table 6-2. All compounds/analytes detected above standards in any previous sampling event that were either not found or in exceedance of standards during the baseline sampling are also included in Table 6-2. For the purposes of continued monitoring at the landfill, it is recommended that the NYSDEC Part 360 Routine Parameter list be modified to target specifically those compounds and ' analytes that are proven to be present as a result of landfill operations. The leachate indicator list was modified to include only ammonia, nitrate, chloride and turbidity. The metals list was 1 modified to include only sodium, iron, manganese and magnesium since these were the only metals found to contravene NYSDEC Class GA groundwater standards and/or guidelines and NYSDOH drinking water standards. Volatile organic compounds will continue to be analyzed using Method 601/602 as per landfill closure investigation requirements. Since the number of compounds and analytes that are indicative of the leachate plume emanating from the Southold landfill is small and contaminant levels are shown to approach background (upgradient) conditions in samples collected off-site and downgradient, it is recommended that the sampling frequency be modified from quarterly to semiannually for the first year and annually thereafter. Long Island landfill closure under Part 360 calls for continued monitoring for a 30-year period subsequent to closure, with the NYSDEC reviewing the sampling ' program every five years. A summary report showing all sampling results will be submitted to the NYSDEC annually. The results of this Part 360 and Phase H Hydrogeologic Investigation, as well as the fmdings of the most recent USEPA site inspection and previous sampling programs, indicate that, based on comparison to the NYSDEC Class GA groundwater standards/guidelines and the NYSDOH drinking water standards, the Southold landfill is not a threat to human health or the environment ' and should be removed from the list of potential hazardous waste sites (Class 2a site) and be delisted entirely. I ' S1464G 6-4 1 Table 6-2 SOUTHOLD LANDFILL HYDROGEOLOGIC INVESTIGATION COMPOUNDS/ANALYTES DETECTED ABOVE NYSDEC CLASS GA STANDARDS/GUIDELINES AND/OR NYSDOH DRINKING WATER STANDARDS 111 Volatiles Metals 1,2 Dichloroethane (D) Iron (U,D) 1,2 Dichloropropane (U,D) Magnesium (U,D) Benzene* (U) Manganese (U,D) Total Xylenes* (U) Sodium (U,D) Chlorobenzene* (D) Selenium* (U,D) 1,1,1 Trichlorotrifluoroethane* (D)1 Copper* (U,D) Tetrachloroethene* (U) Zinc* (U,D) 1,2,3 Trichloropropane* (U) Pesticides/PCBs Leachate Parameters Toxaphene* (D)1 Ammonia(U,D) Aldicarb* (U) Nitrate (U) Carbofuran* (U) Phenol (U,D) PCB Arochlor-1260* (D)1 Chloride (D) 1 1 1 ' *Compounds/analytes found to exceed standards/guidelines only in previous rounds of sampling and mostly in off-site areas. U- Upgradient D - Downgradient 1Compounds found to contravene standards only during one sampling round. 1 1 1 S1464G 6-5 I I D 7 6 I K I I I APPENDIX B I NYSDEC EXPANDED PARAMETERS I I I 1 I I I 41314\A0314501 doc I PARAMETERS AND DETECTION LIMITS 1 EXPANDED PARAMETER LIST VOLATILE ORGANIC COMPOUNDS NYSDEC CLASS GA Method Practical I GROUNDWATER Detection Quantitation TARGET COMPOUND LIST (TCL) STANDARDS/GUIDELINES Limit (MDL) Limit (PQL) VOLATILE COMPOUNDS CAS # Method (ppb) (ppb) (ppb Chloromethane 74-87-3 8010 5 ST 0.08 1 Bromomethane 74-83 9 8240 5 ST 0.11 10 Vinyl Chloride 75-01-4 8010 2 ST 0.18 2 Chloroethane 75-00-3 8010 5 ST 0.52 5 Methylene Chloride 75-09-2 8240 5 ST 0.03 5 Acetone 67-64-1 8240 ---- 5 100 Carbon Disulfide 75-15-0 8240 ---- 5 5 1,1-Dichlorcethene 75-35-4 8010 5 ST 0.13 1 1,1-Dichlorcethane 74-35-3 8010 5 ST 0.07 1 1,2-Dichloroethene (total) 540-59-0 8010 5 ST 0.1 0.5 Chloroform 67-66-3 8010 7 ST 0.05 0.5 1,2-Dichlorcethane 107-06-2 8010 5 ST 0.03 0.05 1 2-Butanone 78-93-3 8240 ---- 5 nd 1,1,1-Trichloroethane 71-055-6 8240 5 ST 0.03 5 Carbon Tetrachloride 56-23-5 8010 5 ST 0.12 1 Vinyl Acetate 108-05-4 8240 ---- 5 5 Bromodichloromethane 75-27-4 8010 50 GV 0.1 1 1 1,2-Dichloroppropane 78-87-5 8010 5 ST 0.04 0.5 cis-1,3-Dichloropropene 10061-01-5 8240 5 ST 0.34 5 Trichloroethene 79-01-6 8240 5 ST 0.12 5 Dibromochloromethane 124-48-1 8010 50 GV 0.09 1 1,1,2-Trichloroethane 79-00-5 801C 5 ST 0.02 0.2 Benzene 71-43-2 802C 0.7 ST 0.2 2 trans-1,3-Dichloropropene 10061-02-6 8240 -S -ST 0.34 5 Bromoform 75-25-2 8010 50 GV 0.2 2 4-Methyl-2-pentanone 108-10-1 8015 5 5 2-Hexanone 591-78-6 8240 50 GV 5 50 Tetrachloroethene 127-18-4 8010 5 ST 0.03 0.5 1,1,2,2-Tetrachloroethane 79-34-5 8010 5 ST 0.03 0.5 111 Toluene 108-88-3 8020 5 ST 0.2 2 Chlorobenzene 108-90-7 8010 5 ST 0.25 2 Ethylbenzene 100-41-4 8020 5 ST 0.2 2 Styrene 100-42-5 8020 5 ST 0.04 1 Xylene (total) 1330-20-7 8240 5 ST * 0.29 5 NON-TCL APPENDIX-33 VOLATILE COMPOUNDS Acrolein 107-02-8 8240 5 ST 35.71 5 (40) Acrylonitrile 107-13-1 8240 5 ST 4.79 5 Allyl chloride 107-05-1 8010 5 ST nd 5 Chloroprene 126-99-8 8240 5 ST 3.06 5 1,2-Dibromo-3-chloropropane 96-12-8 8240 5 ST 13.07 10 (15) 1,2-dibromoethane 106-93-4 8240 ---- 2.76 5 1,2-dichlorobenzene 95-50-1 8010 5 ST 0.15 2 1,3-dichlorobenzene 541-73-1 8010 4.7 ST 0.32 5 1,4-dichlorobenzene 106-46-7 8010 4.7 ST 0.24 2 trans-1,4-Dichloro-2-butene 110-57-6 820 5 ST 4.55 5 Dichlorodifluoromethane 75-71-8 8240 5 ST 38.24 5 (40) Acetonitrile 75-05-8 8015 ---- 26.35 100 1,4-Dioxane 123-91-1 8015 ---- ND 150 I Ethyl methacrylate 97-63-2 8240 ____ 8.6 5 Isobutyl alcohol 78-83-1 8015 196.64 50 (200) Methyacrylonitrile 126-98-7 8240 5 ST 4 5 Dibromomethane 74-95-3 8240 5 ST 3.78 5 MEK 78-93-3 8015 ---- nd 10 Methyl Iodide 74-88-4 8240 5-ST 3.57 5 Methyl methacrylate Propionitrile 80-62-6 820 107-12-0 8240 50 ST 2.71 32.97 2 5 (35) Trichlorofluoromethane 75 69-4 8200 5 ST 4.49 5 1,2,3-Trichloropropane 96-18-4 8240 5 ST 3.41 5 1,1,1,2-Tetrachloroethane 630-20-6 8240 5 ST 2.94 5 Trans-l,2-dichloroethane 156-50-5 BC80 5 ST 0.1 0.5 NOTES GV: Guidance Value ST: Standard I ND: not determined ND: Not Detected Not established *: Applies to each isomer individually I I PARAMETERS AND DETECTION LIMITS 1 EXPANDED PARAMETER LIST SEMIVOLATILE ORGANIC COMPOUNDS Methoc NYSDEC CLASS Ga Detec:-on Practical GROUNDWATER Limit Quantitation TARGET COMPOUND LIST (TCL) STANDARDS/GUIDE-:NES (MDL) Limit (PQL) BASE NEUTRAL COMPOUNDS CAS # Method (ppb) ppb (ppb) bis(2-Chloroethyl)ether 111-44-4 8270 1.0 ST '.37 10 110 1,3-Dichlorobenzene 541-73-1 8270 5 ST 0.712 1,4-Dichlorobenzene 106-46-7 8270 4.7 ST 0.535 10 1,2-Dichlorobenzene 95-50-1 8270 4.7 ST 0.537 10 bis(2-chloroisopropyl)ether 108-60-1 8270 5 ST 0.422 10 N-Nitroso-Di-n-Propylamine 621-64-7 8270 ---- 0.439 10 I Hexachloroethane 67-72-1 8270 5 ST 0.901 10 Nitrobenzene 98-95-3 8270 5 ST 0.504 10 Isophorone 78-59-1 8270 50 GV 0.414 10 bis(2-chloroethoxy)Methane 111-91-1 8270 5 ST 0.727 10 1,2,4-Trichlorobenzene 120-82-1 8270 5 ST 0.226 10 4-Chloroaniline 106-47-8 8270 5 ST 0.646 20 Hexachlorobutadiene 87-68-3 8270 5-ST 0668 110 0 2-Methylnaphthalene 91-57-6 8270 Hexachlorocyclopentadiene 77-47-4 8270 5 ST 0.371 10 2-Chloronaphthalene 91-58-7 8270 5 ST 0.717 10 2-Nitroaniline 88-74-4 8270 5 ST 0.997 50 Dimethyl Phthalate 131-11-3 8270 50 GV 1.24 10 3-Nitroaniline 99-09-2 8270 5 ST 0.599 50 Dibenzofuran 132-64-9 8270 - 0.732 10 2,4-Dinitrotoluene 121-14-2 8270 5 ST 0.444 10 2,6-Dinitrotoluene 606-20-2 8270 5 ST -c 10 Diethylphthalate 84-66-2 8270 50 GV 0.922 10 4-Chlorophenyl-phenylether 7005-72-3 8270 ---- 0.853 10 4-Nitroaniline 100-01-6 8270 5 ST '.52 50 N-Nitrosodiphenylamine 86-30-6 8270 50 GV '..26 10 4-Bromophenyl-phenylether 101-55-3 8270 ---- 0.51 10 Hexachlorobenzene 118-74-1 8270 0.35 ST 0.961 10 Di-n-Butylphthalate 84-74-2 8270 50 ST 3.94 10 I Butilbenzylphthalate 85-68-7 8270 50 GV 5 10 3,3 -Dichlorobenzidine 91-94-1 8270 5 ST -.67 20 bis(2-Ethylhexyl)Phthalate 117-81-7 8270 50 ST .93 10 Di-n-Octyl Phthalate 117-84-0 8270 50 GV '.7 10 IBASE NEUTRAL/PAH COMPOUNDS Naphthalene 91-20-3 8270 10 GV 0.811 10 Acenaphthylene 208-96-8 8270 ---- 0.966 10 Acenaphthene 83-32-9 8270 20 GV 0.866 10 Fluorene 86-73-7 8270 50 GV 0.483 10 Phenanthrene 85-01-8 8270 50 GV 0.811 10 Anthracene 120-12-7 8270 50 GV 0.698 10 Fluoranthene 206-44-0 8270 50 GV `.182 100 Pyrene 129-00-0 8270 50 GV Benzo(a)Anthracene 56-55-3 8270 0.002 GV 0.689 10 Chrysene 218-01-9 8270 0.002 GV = '.09 10 Benzo b Fluoranthene 205-99-2 8270 0.002 GV = 4.82 10 Benzo k Fluoranthene 207-08-9 8270 0.002 GV = 3.7 10 Benzo a Pyyrene 50-32-8 8270 ND ST 2.76 10 indeno( ,2 3-cd)Pyrene 193-39-5 8270 0.002 GV 17.64 10 Dibenza, }Anthracene 53-70-3 8270 ---- '5.3 10 Benzo(g,h,i)Perylene 191-24-2 8270 ---- 16.13 10 ACID COMPOUNDS Phenol 108-95-2 8270 1 ST == 0.977 10 2-Chlorophenol 95-57-8 8270 -1-ST *s 0.419 10 Benzyl Alcohol 100-51-6 8270 32 20 2-Methylphenol 95-48-7 8270 0.862 10 4-Methylphenol 106-44-5 8270 0.534 10 2-Nitrophenol 88-75-5 8270 ---- 0.242 10 2,4-Dimethylphenol 105-67-9 8270 ---- 0.411 10 Benzoic Acid 65-85-0 8270 =___ 2.22 10 2,4-Dichloropnenol 120-83-2 8270 1 ST =- 0.522 10 4-Chloro-3-Methylphenol 59-50-7 8270 0.627 20 2,4,6-Trichlorophenol 88-06-2 8270 '.28 10 2,4,5-Trichlorophenol 95-95-4 8270 ---- .05 10 2,4-Dinitrophenol 51-28-5 8270 ---- 88 10 4-Nitrophenol 100-02-7 8270 ____ 5.903 50 4,6-Dinitro-2-Methylphenol 534-52-1 8270 0.387 10 Pentachlorophenol 87-86-5 8270 1 ST == 0.868 50 NOTES III ST: Standard GV: Guidance Value nd: not determined ----: Not established *: Value pertains to the sum of the isomers "*: Value pertains to tota- phenols I I PARAMETERS AND DETECTION LIMITS I EXPANDED PARAMETER LIST SEM:VOLATILE ORGANIC COMPOUNDS Method NYSDEC CLASS GA Detection Practical GROUNDWATER Limit Quantitation Limit NON-TCL APPE\DIX 33 STANDARDS/GUIDELINES MDL (PQL) SEMIVOLATILE COMPOUNDS CAS # Method (ppb) (ppb) (ppb ' Acetophenone 98 86-2 8270 =__= 0.537 10 Acetonitrile 75-05-8 8270 26.351 10 2-Acetylaminofluorene 53-96-3 8270 2.92 10 4-Aminobiphenyl 92-67-1 8270 5 ST 11.37 10 Aniline 62-53-3 8270 5 ST 0.145 10 Aramite 140-57-8 8270 =__= 9.56 10 Bis(2-chloro-l-methylethyl) ether 108-60-1 8270 5 ST nd 10 Chlorobenzilate 510 15-8 8270 0.996 10 3-methyl phenol 108 39-4 8270 nd 10 Dillate 2303-16-4 8270 ---- 0.109 10 2,6-Dichlorcohenol 87-65-0 8270 ---- 0.742 10 Thionazin 297-97-2 8270 ---- 0.551 10 Dimethoate 60-51-5 8270 5.76 10 p-(dimethyla-ino azobenzene 60-11-7 8270 2.49 10 7,12-Dimetyy-oenz[a]anthracene 57-97-6 8270 4.18 10 3,3'-Dimeth)lbenzidine 119-93-7 8270 5 ST ND 10 alpha,alpha-Dimethylphenethylamine 122-09-8 8270 5 ST ND 10 Dinoseb 88-85-7 8270 1 ST 1.703 10 Diphenylamire 122-39-4 8270 5 ST 0.881 10 Disulfoton 298-04-4 8270 ND * 0.822 10 Ethyl methanesulfonate 62-50-0 8270 ---- 0.981 10 Famphur 52-85-7 8270 ---- 9.99 10 I Hexachlorophene 70-30-4 8270 5 ST ND 10 Hexachlorop^opene 1888-71-7 8270 5 ST 1.14 10 Isodrin 465-73-6 8270 5 ST 1.29 10 Isosafrole 120 58-1 8270 ND 1.25 10 Kepone 143-50-0 8270 ---- ND 10 Methapyrilene 91-80-5 8270 ---- ND 10 111 3-Methylcho'anthrene 56 49-5 8270 ____ 9.43 10 Methyl methanesulfonate 66-27-3 8270 0.841 10 Methyl ara.nion 298-00-0 827 0.008 ST * 6.14 10 1,4-Naphthoc_inone 130-15-4 827" ---- 2.66 10 1-Naphthyls':ne 134-32-7 8270 ---- 0.307 10 1111 4-Nitroquinc in 91-59-8 8270 =__= 0.598 10 4-Nitroquinc'�inel-oxide 56-57-5 8270 ND 10 N-Nitrosodi- -butylamine 924-16-3 8270 0.581 10 N-Nitrosodiethylamine 55-18-5 8270 0.759 10 N-Nitrosodirethylamine 62-75-9 8270 ---- nd 10 N-Nitrosome:nyylethylamine 10595-95- 8270 ---- 1.22 10 N-Nitrosomoroholine 59-89-2 8270 ---- 10.6 10 N-Nitrosopiperidine 100-75-4 8270 ____ 0.882 10 N-Nitrosopyr-olidine 930-55-2 8270 1.11 10 5-Nitro-o-tc uidine 99-55-8 8276 5 ST 0.989 10 Parathion 56-38-2 8270 0.008 ST ** 4.26 10 Pentachlorc=enzene 608-93-5 8270 5 ST 1.16 10 1 Pentachloroe.hane 76-01-7 8270 5 ST nd 10 Pentachlorc--trobenzene 82-68-8 8270 ND 1.32 10 Phenacetin 62-44-2 6270 4.16 10 p-Phenylenec'amine 106-50-3 8270 5 ST ND 10 Phorate 298-02-2 8270 ND * 1.2 10 2-Pr 2 oncoides 3950658 8270 ---- ND 10 Pronamide 23950-58- 8270 2.8 10 Pyridine 110-86-1 8270 50 GV ND 10 Safrole 94-59-7 8270 0.708 10 1,2,4,5-Tet-achlorobenzene 95-94-3 8270 5 GV 1.06 10 2,3,4,6-Tet-achlorophenol 58-90-2 8270 ---- 0.916 10 I Tetraethyl c=thiopyrophosphate 3689-24-5 8270 =__= nd 10 o-Toluidine 95-53-4 8270 5 GV 0.632 10 0,0,0-Triet- 1 phosphorothioate 126-68-1 8270 0.658 10 sym-TrinitrcDenzene 99-35-4 8270 5 GV 1.2 10 m-Dinitrobe-zene 99-65-0 8270 5 ST 0.923 10 1 NOTES ST: Standarc GV: Guidance Value nd: not dete-mined - ed ND: Not Detected : Not established *: Value pertains to the sum of both compounds **: Value pertains to the sum of both compounds I I I IPARAMETERS AND DETECTION LIMITS OF EXPANDED PARAMETER LIST PESTICIDE/PCB AND HERBICIDE ORGANIC COMPOUNDS I NYSDEC CLASS GA Method Practical I GROUNDWATER Detection Quantitation STANDARDS/GUIDELINES Limit (MDL) Limit (PQL) PESTICIDE/PCB COMPOUNDS CAS # Method * (ppb) (ppb) (ppb) Alpha-BHC 319-84-6 8080 ND 0.003 0.05 Beta-BHC 319-85-7 8080 ND 0.006 0.05 I Delta-BHC 319-86-8 8080 ND 0.009 0.10 Gamma-BHC(Lindane) 58-89-9 8080 ND 0.004 0.05 Heptachlor 76-44-8 8080 ND 0.003 0.05 III Aldrin 309-00-2 8080 ND 0.004 0.05 Heptachlc- Epoxide 1024-57-3 8080 ND 0.083 1.00 Endosulfan I 959-98-8 8080 ---- 0.014 0.10 Dieldrin 60-57-1 8080 ND 0.002 0.05 I 4,4'-DDE 72-55-9 8080 ND 0.004 0.05 Endrin 72-20-8 8080 ND 0.006 0.10 Endrin Aldehyde 7421-93-4 8080 5 ST 0.023 0.2 I Endosulfar II 33213-65-9 8080 ---- 0.004 0.05 4,4-DDD 72-54-8 8080 ND 0.011 0.10 Endosulfan Sulfate 1031-07-8 8080 ---- 0.066 0.50 I 4,4'-DDT 50-29-3 8080 - ND 0.012 0.10 Endrin Ketone 53494-70-5 8080 0.023 0.50 Methoxychlor 72-43-5 8080 35 ST 0.176 2.00 Chlordane 5103-71-9 8080 ---- 0.014 0.10 I Toxaphene 8001-35-2 8080 ND 0.24 2.00 Aroclor-1016 12674-11-2 8080 0.1 ST nd 50.00 Aroclor-1221 11104-28-2 8080 0.1 ST nd 50.00 I Aroclor-1232 11141-16-5 8080 0.1 ST nd 50.00 Aroclor-1242 53469-21-9 8080 0.1 S+ 0.065 50.00 Aroclor-1248 12672-29-6 8080 0.1 S7 nd 50.00 Aroclor-1254 11097-69-1 8080 0.1 ST nd 50.00 Aroclor-1260 11096-82-5 8080 0.1 S' nd 50.00 HERBICIDES I2,4,5-TP Silvex 93-72-1 8150 0.26 S7 0.17 2.00 2,4-D 94-75-7 8150 4.4 S' 1.2 10.00 IDinoseb 88-85-7 8150 1 ST 0.07 1.00 Notes ST: Stancard nd: not determined I ND: Non-Detect *: USEPA SW-846 3rd. edition I I PARAMETERS AND DETECTION LIMITS EXPANDED PARAMETER LIST INORGANIC CONSTITUENTS INYSDEC CLASS GA Practical Method GROUNDWATER Quantitation Detection I STANDARDS/GUIDELINES Limit (PQL) _,mit (MDL) Parameter Method ** (PPb) (PPb) (PPb) Aluminum 6010 ---- nd 45 Antimony 7041 3 GV 30 3 I Arsenic 7060 25 ST 10 1 Barium 6010 1000 ST 20 2 Beryllium 7091 3 GV 2 0.2 Cadmium 7131 10 ST 1 0.1 111 Calcium 6010 --'- nd 10 Chromium 7191 50 ST 10 1 Cobalt 6010 ---- 70 7 I Copper 6010 200 ST 60 6 Iron 6010 300 ST x` nd 7 Lead 7421 25 ST 10 1 I Magnesium 6010 35000 GV nd 30 Manganese 6010 300 ST nd 2 Mercury 7470 2 ST 2 --- Nickel 6010 ---- 50 15 I Potassium 6010 -'-- ad Selenium 7740 10 ST 20 2 Silver 6010 50 ST 70 7 I Sodium 6010 20000 ST nd 29 Thallium 7841 4 GV 10 1 Tin 7870 ---- 8000 0.8 I Vanadium 7911 -'-- 40 4 Zinc 6010 300 ST 20 2 Cyanide 9010 100 ST 40 0.0 NOTES GV: Guidance Value ST: Standard I nd: not determined Not established *: Standard for Iron and Manga,ese is 500 ug/1 **: USEPA SW-846 3rd. edition I I PARAMETERS AND DETECTION LIMITS EXPANDED PARAMETER LIST LEACHATE CONSTITUENTS I Method Detection I Detection Limit Limit (MDL) Pa-a-reters Method * (ppb) (PPb) IBioctiemical Oxygen Demand (BODS) 405.1 2000 ---- Chemical Oxygen Demand (COD) 410.2 1000 5000-50000 Total Dissolved Solids (TDS) 160.2 10000 4000-20000000 IAmmonia, as N 350.2 50 50-1400000 Total Kjeldahl Nitrogen, as N 351.3 100 50-1400000 Ni:-ate-Nitrite 353.3 100 10-1000 I Su'=ate 375.2 5000 3000-300000 Total Organic Carbon 415.1 2000 >1000 Ch':-ide 325.1 5000 1000-250000 I A1._linity 310.1 NA >0 Ch-omiurr (Hexavalent)Co' 218.4 NA 10-250 =" 110.1 NA 25-250 units Ha^=ness 130.1 NA 10000-400000 I Tu—:idity 180.1 NA 0-40 NTU �"= 212.3 NA 100-1000 Phenol 420.1 NA 5 Su'=ide 376.2 NA 0-20000 NA: Not Available I *: .:SEPA 600/4-79-020 I II II TARGET COMPOUND LIST (TCL) AND CONTRACT REQUIRED QUANTITATION LIMITS (CRQL) II II - ..._ Ou ntitat.ion Limitsl Fly Chemical Water Soil Ash Waste IIPCDD/PCD CAS Number (ng/L) (ug/Kg) (ug/Kg) (ug/Kg) I 2378-TCDD 1746.01.6 10 1.0 1.0 10 2378-TCDF 51207-31-9 10 1.0 1.0 10 I 12378-PeCDF 57117-41-6 25 2.5 2.5 25 12378•PeCDD 40321.76.4 25 2.5 2.5 25 23478-PeCDF 57117-31-4 25 2.5 2.5 25 I123478-HxCDF 70648.26-9 25 2.5 2.5 25 1236784IxCDF 57117.44-9 25 2.5 2.5 25 123478-HxCDD 39227.28-6 25 2.5 2.5 25 II . 123678-HxCDD 57653-85-7 25 2.5 2.5 25 123789-HxCDD 19408-74.3 25 2.5 2.5 25 234678-HxCDF 60851.34.5 25 2.5 2.5 25 I 123789.HxCOF 72918-21-9 25 2.5 2.5 25 1234678-HpCDF 67562.39-4 25 2.5 2.5 25 1234678-MpCDD 35822.46.9 25 2.5 2.5 25 II1234789-HpCDP 55673.89.7 25 2.5 2.5 25 OCDD 3268-87-9 50 5 .0 5.0 50 I OCDF 39001.02-0 50 5.0 5.0 50 II II 1 All CRQL values listed here are based on the vet weight of the sample. Il 2 Chemical wasteincludes i thematrices of oils, s..i_lbottoms, oily sledge, wet fuel oil, oil-laced soil, and surface water heavily contaminated with these I matrices. • II II C-2 DFLKOI.O n II D I a I X APPENDIX C ' SUMMARY OF JULY 1992 AND JANUARY 1993 GROUNDWATER QUALITY ASSESSMENT REPORT LABORATORY DATA I 1 I 1 4.1314\A0314501.doc UN NM — UN MN MN NM NU NM MN NM E In NM r MN NU — — SOUTHOLD LANDFILL GROUNDWATER SAMPLING RESULTS VOLATILE ORGANICS NYSDEC CLASS MW1S MW1S MW1S MW1D MW1D MW1D GA STANDARDS/ 7/25/91 7/22/92 1/26/93 7/25/91 7/22/92 1/26/93 GUIDELINES Volatile Compounds (ugh!) (ug/I) (ugh!) (ug/I) (ug/I) (ug/I) (ug/I) Chloromethane U U U ' U U U 5 ST Bromomethane U U U U U U 5 ST Vinyl Chloride U U U U U U 2 ST Chloroethane U U U U U U 5 ST Methylene Chloride U 14 B U U 11 B U 5ST 1,1-Dichloroethene U U U U U U 5ST 1,1-Dichloroethane U U U U U U 5ST 1,2-Dichloroethene(trans) U U U U U U 5 ST Chloroform U U U U U U 7 ST 1,2-Dichloroethane U U U U U U 5 ST 1,1,1-Trichloroethane U U U U U U 5ST Carbon Tetrachloride U U U U U U 5 ST Bromodichloromethane U U U U U U 50 GV 1,2-Dichloropropane U U U U U U 5 ST cis-1,3-Dichloropropene U U U U U U 5 ST Trichloroethene U U U U U U 5 ST 1 Dibromochloromethane U U U U U U 50 GV 1,1,2-Trichloroethane U U U U U U 5ST Benzene U U U U • U 1.6 0.7 ST Trans-1,3-Dichloropropene U U U U U U 5ST Tetrachloroethene U U U U U U 5 ST 1,1,2,2-Tetrachloroethane U U U U U U 5ST Toluene U U U U U U 5ST Chlorobenzene U U U U U U 5 ST Ethylbenzene U U U U U U 5 ST Xylene(total) U U U U U U 5ST' 2-Chloroethylvinylether U U U U U U --- Trichlorofluoromethane U U U U U U 5 ST 1,2-Dichlorobenzene U U U U U U 4.7 ST 1,3-Dichlorobenzene U U U U U U 5 ST 1,4-Dichlorobenzene U U U U U U 4.7 ST Bromoform U U U U U U 50 GV QUALIFIERS: U: Analyzed for but not detected NOTES: B: Compound found in blank as well as sample ST: Standard GV: Guidance value ----: Not established I ST': Applies to each isomer individually :Exceeds standards/guidelines all MN 1 EN — MI s 1 NE 1 EN r EN — NM 1 NE MI NM SOUTHOLD LANDFILL GROUNDWATER SAMPLING RESULTS VOLATILE ORGANICS NYSDEC CLASS MW2S MW2S MW2S MW2D MW2D MW2D GA STANDARDS/ 7/24/91 7/23/92 1/27/93 7/24/91 7/28/92 1/27/93 GUIDELINES Volatile Compounds (ug/1) (ug/I) (ugh!) (ug/I) (ug/I) (ug/l) (ug/I) Chloromethane U U U U u U 5 ST Bromomethane U U U U U U 5 ST Vinyl Chloride U U U U U U 2 ST Chloroethane U U U U U U 5 ST Methylene Chloride U 9 B U U 2 8 U 5 ST 1,1-Dichloroethene U U U U U U 5 ST 1,1-Dichloroethane U U U U U U 5 ST 1,2-Dichloroethene(trans) U U U U U U 5 ST Chloroform U U U U U U 7 ST 1,2-Dichloroethane U U U U U U 5 ST 1,1,1-Trichloroethane U U U U U U 5 ST Carbon Tetrachloride U U U U U U 5 ST Bromodichloromethane U U U U U U 50 GV 1,2-Dichloropropane U U U U U U 5 ST cis-1,3-Dichloropropene U U U U U U 5 ST Trichloroethene U U U U U U 5 ST Dibromochloromethane U U U U U U 50 GV 1,1,2-Trichloroethane U U U U U U 5 ST Benzene U ' 1.2 U U U U 0.7 ST Trans-1,3-Dichloropropene U U U U U U 5 ST Tetrachloroethene U U U U U U 5 ST 1,1,2,2-Tetrachloroethane U U U U U U 5 ST Toluene U U U U U U 5 ST Chlorobenzene U 3.5 1.8 U I U 5 ST Ethylbenzene U U U U U U 5 ST Xylene(total) U U U U U U 5 ST' 2-Chloroethylvinylether U U U U U U ---- Trichlorofluoromethane U U U U U U 5 ST 1,2-Dichlorobenzene U U U U U U 4.7 ST 1,3-Dichlorobenzene U U U U U U 5 ST 1,4-Dichlorobenzene U U U U U U 4.7 ST Bromoform U U U U U U 50 GV QUALIFIERS: NOTES: U:Analyzed for but not detected ST:Standard B:Compound found in blank as well as sample GV:Guidance value ----:Not established ST':Applies to each isomer individually :Exceeds standards/guidelines SR N r NM N MN N MR N an — M NM — MN E NM ■■N IIIII SOUTHOLD LANDFILL GROUNDWATER SAMPLING RESULTS VOLATILE ORGANICS NYSDEC CLASS MW3S MW3S MW3S MW3D MW3D MW3D GA STANDARDS/ 7/25/91 7/23/92 1/27/93 7/25/91 7/28/92 1/27/93 GUIDELINES Volatile Compounds (ug/I) (ugh!) (ugh') (ug/I) (ug/I) (ug/I) (ugh) Chloromethane U U U U U U 5 ST Bromomethane U U U U U U 5 ST Vinyl Chloride U U U U U U 2 ST Chloroethane U U U U U U 5 ST Methylene Chloride U 7.5 B U U 2.3 B U 5 ST 1,1-Dichloroethene U U U U U U 5ST 1,1-Dichloroethane U U U U U U 5ST 1,2-Dichloroethene(trans) U U U U U U 5ST Chloroform U U U U U U 7 ST 1,2-Dichloroethane U U U U U U 5 ST 1,1,1-Trichloroethane U U U U U U 5ST Carbon Tetrachloride U U U U U U 5 ST Bromodichloromethane U U U U 2.7 U 50 GV 1,2-Dichloropropane U U U U U U 5 ST cis-1,3-Dichloropropene U U U U U U 5 ST Trichloroethene U U U U U U 5 ST Dibromochloromethane U U U U U U 50 GV 1,1,2-Trichloroethane U U U U U U 5 ST Benzene U 1.1 U U U U 0.7 ST Trans-1,3-Dichloropropene U U U U U U 5 ST Tetrachloroethene U U U U U U 5 ST 1,1,2,2-Tetrachloroethane U U U U U U 5ST Toluene U U U U U U 5ST Chlorobenzene U U U U U U 5 ST Ethylbenzene U U U U U U 5 ST Xylene(total) U U U U U U 5 ST' 2-Chloroethylvinylether U U U U U U ---- Trichlorofluoromethane U U U U U U 5 ST 1,2-Dichlorobenzene U U U U U U 4.7 ST 1,3-Dichlorobenzene U U U U U U 5 ST 1,4-Dichlorobenzene U U U U U U 4.7 ST Bromoform U U U U U U 50 GV QUALIFIERS: NOTES: U: Analyzed for but not detected ST: Standard B: Compound found in blank as well as sample GV:Guidance value ----: Not established ST*: Applies to each isomer individually ................... ........... .. ... :Exceeds standards/guidelines all 11111111 MN N an r NI — — 1 NM all NM — UN MN On 11111 11111 SOUTHOLD LANDFILL 1 GROUNDWATER SAMPLING RESULTS VOLATILE ORGANICS NYSDEC CLASS MW4S MW4S MW4S MW4D MW4D MW4D GA STANDARDS/ 7/26/91 7/27/92 1/28/93 7/26/91 7/27/92 1/28/93 GUIDELINES Volatile Compounds (ugh!) (ugh!) (ug/l) (ugh]) (ug/I) (ug/l) (ug/I) Chloromethane U U U U U U I Bromomethane U U U U U U 5 ST Vinyl Chloride U U U U U U 2 ST Chloroethane U U U U U U 5 ST Methylene Chloride U 4.7 B 2.8 U 4.1 B U 5 ST 1,1-Dichloroethene U U U U U U 5 ST 1,1-Dichloroethane U U U U U U 5 ST 1,2-Dichtoroethene(trans) U U U U U U 5 ST Chloroform U U U U 2.2 U 7 ST 1,2-Dichloroethane U U U U 1 3.1 5 ST 1,1,1-Trichloroethane U U U U U U 5 ST Carbon Tetrachloride U U U U U U 5 ST Bromodichloromethane U U U U U U 50 GV 1,2-Dichloropropane U U U U U U 5 ST cis-1,3-Dichloropropene U U U U U U 5 ST Trichloroethene U U U U U U 5 ST Dibromochloromethane U U U U U U 50 GV 1,1,2-Trichloroethane U U U U U U 5 ST 1 Benzene U U U U U U 0.7 ST Trans-1,3-Dichloropropene U U U U U U 5 ST Tetrachloroethene U U U U U U 5 ST 1,1,2,2-Tetrachloroethane U U U U U U 5 ST Toluene U U U U U U 5 ST Chlorobenzene U U U U U U 5 ST Ethylbenzene U U U U U U 5 ST Xylene(total) U U U U U U 5 ST' 2-Chloroethylvinylether U U U U U U ---- Trichlorofluoromethane U U U U U U 5 ST 1,2-Dichlorobenzene U U U U U U 4.7 ST 1,3-Dichlorobenzene U U U U U U 5 ST 1,4-Dichlorobenzene U U U U U U 4.7 ST Bromoform U U U U U U 50 GV QUALIFIERS: NOTES: U: Analyzed for but not detected ST: Standard B: Compound found in blank as well as sample GV:Guidance value ----: Not established ST': Applies to each isomer individually :Exceeds standards/guidelines E r all N I M M MI — I r M r N M N MN M r SOUTHOLD LANDFILL GROUNDWATER SAMPLING RESULTS VOLATILE ORGANICS NYSDEC CLASS 1 MW5S MW5S MW5S MW5D MW5D MW5D GA STANDARDS/ 7/25/91 7/27/92 1/28/93 7/25/91 7/27/92 1/28/93 GUIDELINES Volatile Compounds (ug/I) (ug/I) — (ug/1) (Ug/1) (ug/I) (ug/I) (ugh!) Chloromethane U U U U U U 5 ST Bromomethane U U U U U U 5 ST Vinyl Chloride U U U U 17 4;6 2 ST Chloroethane U U U U U U 5 ST Methylene Chloride U 4.5 B 2.7 U 4 B U 5 ST 1,1-Dichloroethene U U U U U U 5ST 1,1-Dichloroethane U U U U U U 5ST 1,2-Dichloroethene(trans) U U U U U U 5 ST Chloroform U U U U U U 7 ST 1,2-Dichloroethane U U U U U 1.2 5 ST 1,1,1-Trichloroethane U U U U U U 5ST Carbon Tetrachloride U U U U U U 5 ST Bromodichloromethane U U U U 2 U 50 GV 1,2-Dichloropropane U U U U U U 5 ST cis-1,3-Dichloropropene U U U U U U 5ST Trichloroethene U U U U U U 5 ST ' Dibromochloromethane U U U U U U 50 GV 1.1,2-Trichloroethane U U U U U U 5 ST Benzene U U U U 1.5 1:2 0.7 ST Trans-1,3-Dichloropropene U U U U U U 5 ST Tetrachloroethene U U U U U U 5 ST 1,1,2,2-Tetrachloroethane U U U U U U 5ST Toluene U U U U U U 5 ST Chlorobenzene U U U U 1.3 1.2 5 ST Ethylbenzene U U U U U U 5 ST Xylene(total) U U U U U U 5 ST* 2-Chloroethylvinylether U U U U U U ---- Trichlorofluoromethane U U U U U U 5 ST 1,2-Dichlorobenzene U U U U U U 4.7 ST 1,3-Dichlorobenzene U U U U U U 5 ST 1,4-Dichlorobenzene U U U U U U 4.7 ST Bromoform U U U U U U 50 GV QUALIFIERS: NOTES: U: Analyzed for but not detected ST: Standard B: Compound found in blank as well as sample GV: Guidance value ---: Not established ST*: Applies to each isomer individually :Exceeds standards/guidelines r — — all E M UN MI 1 - - NM MI NM NM MI NM NM IN SOUTHOLD LANDFILL GROUNDWATER SAMPLING RESULTS VOLATILE ORGANICS NYSDEC CLASS MW6S MW6S MW6S MW6D MW6D MW6D GA STANDARDS/ 7/24/91 7/23/92 1/27/93 7/25/91 7/24/92 1/27/93 GUIDELINES Volatile Compounds (ug/I) (ug/I) (ug/I) (ug/I) (ugh!) (ug/I) (ug/I) Chloromethane U U U U U U 5ST , Bromomethane U U U U U U 5 ST Vinyl Chloride U U U U U U 2 ST Chloroethane U U U U U U 5 ST Methylene Chloride U 8.6 B U U 12 B U 5 ST 1,1-Dichloroethene U U U U U U 5 ST 1,1-Dichloroethane U U U U U U 5ST .......... .......... .. 1,2-Dichloroethene(trans) U U U U 28 U 5 ST Chloroform U U U U U U 7 ST 1,2-Dichloroethane U U U 12 • U 16 5 ST 1,1,1-Trichloroethane U U U U U U 5ST Carbon Tetrachloride U U U U U U 5 ST Bromodichloromethane U U U U U U 50 GV 1,2-Dichloropropane U U U 11: U U 5ST cis-1,3-Dichloropropene U U U U U U 5ST Trichloroethene U U U U U U 5 ST Dibromochloromethane U U U U U U 50 GV 1,1,2-Trichloroethane U U U U U U 5ST Benzene U U U U U U 0.7 ST Trans-1,3-Dichloropropene U U U U U U 5ST Tetrachloroethene U U U U U U 5 ST 1,1,2,2-Tetrachloroethane U U U U U U 5ST Toluene U U U U U U 5ST Chlorobenzene U 2.2 U U U U 5 ST Ethylbenzene U U U U U U 5ST Xylene(total) U U U U U U 5 SP 2-Chloroethylvinylether U U U U U U ---- Trichlorofluoromethane U U U U U U 5 ST 1,2-Dichlorobenzene 1 1.5 U 1 2.6 U 4.7 ST 1,3-Dichlorobenzene U U U U U U 5 ST 1,4-Dichlorobenzene 1 2.5 U U U U 4.7 ST Bromoform U U U U U U 50 GV QUALIFIERS: NOTES: U: Analyzed for but not detected ST: Standard B: Compound found in blank as well as sample GV:Guidance value ----: Not established ST': Applies to each isomer individually .................... ... :Exceeds standards/guidelines — MN INN — — — all Ell ell — MN NM IIIIII IIIIIII INN — IIIIII 1111111 Ell 1 SOUTHOLD LANDFILL GROUNDWATER SAMPLING RESULTS , VOLATILE ORGANICS NYSDEC CLASS MW7S MW7S MW7S MW7D MW7D MW7D GA STANDARDS/ 7/25/91 7/22/92 1/26/93 7/26/91 7/22/92 1/16/93 GUIDELINES Volatile Compounds (ug/I) (ugh') (ug/I) (ug/I) (ug/I) (ug/I) (ug/I) Chloromethane -U U U U U U 5 ST Bromomethane U U U U U U 5 ST Vinyl Chloride U U U U U U 2 ST Chloroethane U U U U U U 5 ST Methylene Chloride U 17 B U U 15 B U 5 ST 1,1-Dichloroethene U U U U U U 5 ST 1,1-Dichioroethane U U U U U U 5 ST 1,2-Dichloroethene(trans) U U U U U U 5 ST Chloroform U U U U U U 7 ST 1,2-Dichloroethane U U U U U U 5 ST 1,1,1-Trichloroethane U U U U U U 5 ST Carbon Tetrachloride U U U U U U 5 ST Bromodichloromethane U U U U U U 50 GV 1,2-Dichloropropane U U U U U U 5 ST cis-1,3-Dichloropropene U U U U U U 5 ST Trichloroethene U U U U U U 5 ST Dibromochloromethane U U U U U U 50 GV 1,1,2-Trichloroethane U U U U U U 5 ST Benzene U U U U U U 0.7 ST Trans-1,3-Dichloropropene U U U U U U 5 ST Tetrachloroethene U U U U U U 5 ST 1,1,2,2-Tetrachloroethane U U U U U U 5 ST Toluene U U U U U U 5 ST Chlorobenzene U U U U U U 5 ST Ethylbenzene U U U U U U 5 ST Xylene(total) U U U U U U 5 ST* 2-Chloroethylvinylether U U U U U U --- Trichlorofluoromethane U U U U U U 5 ST 1,2-Dichlorobenzene 1 U U U U U 4.7 ST 1,3-Dichlorobenzene U U U U U U 5 ST 1,4-Dichlorobenzene 1 U U U U U 4.7 ST Bromoform U U U U U U 50 GV QUALIFIERS: NOTES: U: Analyzed for but not detected ST: Standard B: Compound found in blank as well as sample GV: Guidance value ----: Not established ST*: Applies to each isomer individually :Exceeds standards/guidelines N UN MI 11111 NM NI N 1 UN 1111 111111 1111 OM an 1 MN MN M 11111 SOUTHOLD LANDFILL GROUNDWATER SAMPLING RESULTS VOLATILE ORGANICS PW-001 PW-001 PW-002 PW-002 NYSDEC CLASS GW-8 (GW-8) (GW-8) GW-6 (GW-6) (GW-6) GA STANDARDS/ 12/4/90 7/24/92 2/1/93 12/4/90 7/24/92 2/1/93 GUIDELINES Volatile Compounds (ug/I) (ug/I) (ug/I) (ug/l) ' (ug/l) (ug/l) (ug/I) Chloromethane U U U - U U U 5 ST , Bromomethane U U U U U U 5 ST Vinyl Chloride U U U U U U 2 ST Chloroethane U U U U U U 5 ST Methylene Chloride U 10 B 1.5 U 10 B 1.2 5ST 1,1-Dichloroethene U U U U U U 5ST 1,1-Dichloroethane U U U U U U 5ST 1,2-Dichloroethene(trans) U U U U U U 5 ST Chloroform U U U U U U 7 ST 1,2-Dichloroethane U U U U U U 5ST 1,1.1-Trichloroethane U U U U U U 5ST Carbon Tetrachloride U U U U U U 5 ST Bromodichloromethane U U U U U U 50 GV 1,2-Dichloropropane U U U U U U 5 ST cis-1.3-Dichloropropene U U U U U U 5ST Trichloroethene U U U U U U 5 ST Dibromochloromethane U U U U U U 50 GV 1,1,2-Trichloroethane U U U U U U 5ST Benzene U U U U U U 0.7 ST Trans-1,3-Dichloropropene U U U U U U 5ST Tetrachloroethene U U U U U U 5 ST 1,1,2,2-Tetrachloroethane U U U U U U 5ST Toluene U U U U U U 5ST Chlorobenzene U U U U U U 5 ST Ethylbenzene U U U U U U 5 ST Xylene(total) U U U U U U 5 ST' 2-Chloroethylvinylether U U U U U U ---- Trichlorofluoromethane U U U U U U 5 ST 1,2-Dichlorobenzene U U U U U U 4.7 ST 1.3-Dichlorobenzene U U U U U U 5 ST 1,4-Dichlorobenzene U U U U U U 4.7 ST Bromoform U U U U U U 50 GV QUALIFIERS: NOTES: U: Analyzed for but not detected ST: Standard 6: Compound found in blank as well as sample GV:Guidance value ----: Not established ST': Applies to each isomer individually .... .............. :Exceeds standards/guidelines MI 11111 OM 1 OM MI NM NO MN NE E 11111 1 EN 11111 E NM NM 11111 SOUTHOLD LANDFILL GROUNDWATER SAMPLING RESULTS VOLATILE ORGANICS PW-003 PW-004 PW-005 PW-006 NYSDEC CLASS GW-5 (GW-5) WS-11 (WS-11) (WS-4) (WS-4) WS-6 (WS-6) GA STANDARDS/ 12/4/90 7/24/92 8/80 2/1/93 9/12/89 2/1/93 8/80 2/1/93 GUIDELINES Volatile Compounds (ugh() (ug/1) (ug/I) (ug/I) (ugh!) (ug/1) (ugh) (ug/I) (ug/I) Chloromethane U U NA U NA U NA IT . 5 ST Bromomethane U U NA U NA U NA U 5 ST Vinyl Chloride U U NA U NA U NA U 2 ST Chloroethane U U NA U NA U NA U 5 ST Methylene Chloride U 12 B NA U NA U NA U 5 ST 1,1-Dichloroethene U U NA U NA U NA U 5 ST 1,1-Dichloroethane U U NA U NA U NA U 5 ST 1,2-Dichloroethene(trans) U U NA U NA U NA U 5 ST Chloroform U U NA U NA U NA U 7 ST 1,2-Dichloroethane U U NA U NA U NA U 5 ST 1,1,1-Trichloroethane U U NA U NA U NA U 5 ST Carbon Tetrachloride U U NA U NA U NA U 5 ST Bromodichloromethane U U NA U NA U NA U 50 GV 1,2-Dichloropropane U U H.9 U 11 • U 27 U 5 ST cis-1,3-Dichloropropene U U NA U NA U NA U 5 ST Trichloroethene U U NA U NA U NA U 5 ST Dibromochloromethane U U U U U U U U 50 GV 1,1,2-Trichloroethane U U NA U NA U NA U 5 ST Benzene U U NA U NA U NA U 0.7 ST Trans-1,3-Dichloropropene U U NA U NA U NA U 5 ST Tetrachloroethene U U 2 U U U 2 2.6 5 ST 1,1,2,2-Tetrachloroethane U U NA U NA U NA U 5 ST Toluene U U NA U NA U NA U 5 ST Chlorobenzene U U NA U NA U NA U 5 ST Ethylbenzene U U NA U NA U NA U 5 ST Xylene(total) U U NA U NA U NA U 5 ST' 2-Chloroethylvinylether U U NA U NA U NA U ---- Trichlorofluoromethane U U NA U NA U NA U 5 ST 1,2-Dichlorobenzene U U NA U NA U NA U 4.7 ST 1,3-Dichlorobenzene U U NA U NA U NA U 5 ST 1,4-Dichlorobenzene U U NA U NA U NA U 4.7 ST Bromoform U U NA U NA U NA U 50 GV QUALIFIERS: NOTES: U:Analyzed for but not detected ST: Standard B:Compound found in blank as well as sample GV:Guidance value NA:Not Analyzed ----:Not established ST':Applies to each isomer individually :Exceeds standards/guidelines MI EN EN IIMII NE E 11111 1 1 1 11111 = 11111 NM MN all INI1 In N SOUTHOLD LANDFILL GROUNDWATER SAMPLING RESULTS VOLATILE ORGANICS NYSDEC CLASS S-68916 S-68916 S-68916 S-68831 S-68831 S-68831 GA STANDARDS/ 12/4/90 7/29/92 1/29/93 7/25/89 7/29/92 1/29/93 GUIDELINES Volatile Compounds ' (ug/I) (ug/1) - (ug/I) - (ug/1) ' (ug/I) (ug/l) (ug/I) Chloromethane UI t1J U' U^ U- U —5-BI Bromomethane U U U U U U 5 ST Vinyl Chloride U U U U U U 2 ST Chloroethane U U U U U U 5 ST Methylene Chloride U 0.3 J U U U 1.5 5 ST 1,1-Dichloroethene U U U U U U 5ST 1,1-Dichloroethane U U U U U U 5ST 1,2-Dichloroethene(trans) U U U U U U 5 ST Chloroform U U U U U U 7 ST 1,2-Dichloroethane U U U U U U 5 ST 1,1,1-Trichloroethane U U U U U U 5ST Carbon Tetrachloride U U U U U U 5 ST Bromodichloromethane U 3.5 U U U U 50 GV 1,2-Dichloropropane 15 U U U U U 5 ST cis-1,3-Dichloropropene U U U U U U 5 ST Trichloroethene U U U U U U 5 ST Dibromochloromethane U U U U U U 50 GV 1,1,2-Trichloroethane U U U U U U 5ST Benzene U U U U U U 0.7 ST Trans-1,3-Dichloropropene U U U U U U 5 ST Tetrachloroethene U U U U U U 5ST 1,1,2,2-Tetrachloroethane U U U U U U 5ST Toluene U U U U U U 5ST Chlorobenzene 24 2 1.2 U U U 5ST Ethylbenzene U U U U U U 5 ST Xylene(total) U U U U U U 5 SP 2-Chloroethylvinylether U U U U U U ---- Trichlorofluoromethane U U U U U U 5 ST 1,2-Dichlorobenzene U U U U U U 4.7 ST 1,3-Dichlorobenzene U U U U U U 5 ST 1,4-Dichlorobenzene U U U U U U 4.7 ST Bromoform U U U U U U 50 GV QUALIFIERS: NOTES: U: Analyzed for but not detected ST: Standard B: Compound found in blank as well as sample GV: Guidance value ----: Not established ST*: Applies to each isomer individually :Exceeds standards/guidelines MI I NM ON RR 11111 111111 MS MI I 11111 all MI MN E MI EN NM EN SOUTHOLD LANDFILL GROUNDWATER SAMPLING RESULTS VOLATILE ORGANICS NYSDEC CLASS TB 7/25 TB 7/28 TB 1/28 TB 1/29 TB 2/1 GA STANDARDS/ 7/25/91 7/28/92 1/28/93 1/29/93 2/1/93 GUIDELINES Volatile Compounds (ug/I) (ug/I) (ug/I) (ug/I) (ug/I) (ug/I) Chloromethane U U U' U- U 5 ST Bromomethane U U U U U 5 ST Vinyl Chloride U U U U U 2 ST Chloroethane U U U U U 5 ST Methylene Chloride U 6.8 B U 3.5 2.1 5 ST 1,1-Dichloroethene U U U U U 5 ST 1,1-Dichloroethane U U U U U 5 ST 1.2-Dichloroethene(trans) U U U U U 5 ST Chloroform U U U U U 7 ST 1,2-Dichloroethane U U U U U 5 ST 1,1,1-Trichloroethane U U U U U 5 ST Carbon Tetrachloride U U U U U 5 ST Bromodichloromethane U U U U U 50 GV 1,2-Dichloropropane U U U U U 5 ST cis-1,3-Dichloropropene U U U U U 5 ST Trichloroethene U U U U U 5 ST Dibromochloromethane U U U U U 50 GV 1,1,2-Trichloroethane U U U U U 5 ST Benzene U U U U U 0.7 ST Trans-1,3-Dichloropropene U U U U U 5 ST Tetrachloroethene U U U U U 5 ST 1,1,2,2-Tetrachloroethane U U U U U 5 ST Toluene U U U U U 5 ST Chlorobenzene U U U U U 5 ST Ethylbenzene U U U U U 5 ST Xylene(total) U U U U U 5 ST' 2-Chloroethylvinylether U U U U U ---- Trichlorofluoromethane U U U U U 5 ST 1,2-Dichlorobenzene 1 U U U U 4.7 ST 1,3-Dichlorobenzene U U U U U 5 ST 1,4-Dichlorobenzene 1 U U U U 4.7 ST Bromoform U U U U U 50 GV QUALIFIERS: NOTES: U:Analyzed for but not detected ST:Standard 8:Compound found in blank as well as sample GV:Guidance value ----:Not established ST':Applies to each isomer individually :Exceeds standards/guidelines IINI NM - - MI - - MI MI E I NM E 1 a - MN 1 MN SOUTHOLD LANDFILL GROUNDWATER SAMPLING RESULTS VOLATILE ORGANICS NYSDEC CLASS FB01 FB 7/24 DW-1 GA STANDARDS! 7/15/91 7/24/92 1/28/93 GUIDELINES Volatile Compounds (ug/I) (ug/I) (ug/I) (ug/1) Chloromethane U U U 5 ST Bromomethane U U U 5 ST Vinyl Chloride U U U 2 ST Chloroethane U U U 5 ST Methylene Chloride U 8.7 B U 5 ST 1,1-Dichloroethene U U U 5ST 1,1-Dichloroethane U U U 5 ST 1,2-Dichloroethene(trans) U U U 5 ST Chloroform U U U 7 ST 1,2-Dichloroethane U U U 5 ST 1,1,1-Trichloroethane U U U 5 ST Carbon Tetrachloride U U U 5 ST Bromodichloromethane U U U 50 GV 1,2-Dichloropropane U U U 5 ST cis-1,3-Dichloropropene U U U 5 ST Trichloroethene U U U 5 ST Dibromochloromethane U U U 50 GV 1,1,2-Trichloroethane U U U 5ST Benzene U U U 0.7 ST Trans-1.3-Dichloropropene U U U 5 ST Tetrachloroethene U U U 5 ST 1,1,2,2-Tetrachloroethane U U U 5 ST Toluene U U U 5ST Chlorobenzene U U U 5 ST 1 Ethylbenzene U U U 5 ST Xylene(total) U U U 5 ST' 2-Chloroethylvinylether U U U -- Trichlorofluoromethane U U U 5 ST 1,2-Dichlorobenzene U U U 4.7 ST 1.3-Dichlorobenzene U U U 5 ST 1,4-Dichlorobenzene U U U 4.7 ST Bromoform U U U 50 GV QUALIFIERS: NOTES: U: Analyzed for but not detected ST: Standard B: Compound found in blank as well as sample GV:Guidance value ----: Not established ST': Applies to each isomer individually :Exceeds standards/guidelines E 111111 E 11111 NM E MI M E 1 11111 1111 1 MN M 111111 MI E NO SOUTHOLD LANDFILL GROUNDWATER SAMPLING INORGANICS NYSDEC CLASS MW1S MW1S MW1S MW1D MW1D MW1D MW2S MW2S MW2S MW2D MW2D MW2D GA STANDARDS/ 7/25/91 7/22/92 1/26/93 7/25/91 7/22/92 1/26/93 7/24/91 7/23/92 1/27/93 7/24/91 7/28/92 1/27/93 GUIDELINES Constituent (ugh') (ug/l) (ug/I) (ug/I) (ug/I) (ugh!) (ug/l) (ug/I) (ug/l) (ug/I) (ugh!) (ug/I) (ugh) l Aluminum 501 1190 NR 612 822 NR 1490 173 NR 146 B 92.7 NR ---- Antimony U U NR U U NR U U NR U U NR 3 GV Arsenic U U NR U U NR U U NR U U NR 25 ST Barium 68B 51.9B NR 30B 30.1 B NR 1986 180B NR 264 219 NR 1000 ST Beryllium U U NR U U NR U U NR U U NR 3 GV Cadmium U U NR U U NR U U NR U U NR 10 ST I Calcium 11500 6810 NR 22800 15900 NR 7620 153000 NR 106000 112000 NR ---- Chromium U 11.7 NR U U NR U 8.5B NR U U NR 50 ST Cobalt U U NR U U NR U 13.6B NR 32 B 19.1 B NR ---- Copper U 10.8 B U 12 B 11.8 B 9.1 B 21 B 13.6B U U U 11 B 200 ST Iron 1350 2830 818 988 1610 303 5850 3610 5320 1780 244 316 300 ST Lead U 3.2 NR 13 8.1 NR 4 U NR U 3.3 NR 25 ST j Magnesium 7740 5260 4240 6 9220 6910 5580 22000 23300 10500 63200 71400 72400;;. 35000 GV Manganese 620 327 178 243 224 127 4000 5930 2120 9890 3570 4380`; 300 ST Mercury U U NR U 0.25 NR U 0.33 NR U 0.34 NR 2 ST Nickel U 33.4 B NR U U NR U 18B NR 79 82.2 NR ---- Potassium 2380 B 1960 NR 2090 B U NR 93500 80000 NR 130000 118000 NR ---- Selenium U U NR U U NR U U NR U U NR 10 ST Silver U U NR U U NR U U NR U U NR 50 ST Sodium 41600 22900 19600 1630 14600 15800 75900 74300 28100 202000 213000 219(00 20000 ST Thallium U U NR U U NR U U NR U U NR 4 GV Vanadium U U NR U U NR U U NR U U NR ---- Zinc 16 B 33.8 NR 36 35.3 NR 17 B 14.86 NR 17 B 99.7 NR 300 ST Cyanide U U U U U U U U U U 110 '' U 100 ST QUALIFIERS: NOTES: U: Analyzed for but not detected. ST: Standard B: Value less than contract required GV:Guidance value limits but greater than instrument ----: Not established detection limits. Exceeds standard/guidelines N/A: Not analyzed. NR: Not Required NM E E E NM MN N NM MI EN 1 NM MI UN En IN111 MI 111111 NS SOUTHOLD LANDFILL GROUNDWATER SAMPLING RESULTS INORGANICS NYSDEC CLASS MW3S MW3S MW3S MW3D MW3D MW3D MW4S MW4S MW4S MW4D MW4D MW4D GA STANDARbS/ 7/25/91 7/23/92 1/27/93 7/25/91 7/28/92 1/27/93 7/26/91 7/28/92 1/28/93 7/26/91 7/28/92 1/28/93 GUIDELINES Constituent (ugh!) (ug/I) (ug/I) (ug/I) (ug/I) (ug/I) (ug/I) (ug/I) (ug/I) (ugh!) (ug/I) (ug/I) (ug/I) Aluminum 410 348 NR 196 B 269 NR U 253 NR 300 170 NR ---- Antimony U U NR U U NR U U NR U U NR 3 GV Arsenic U U NR U U NR U U NP U U NR 25 ST Barium 282 210 NR 133 B 125 B NR U 22.4 B NR 155 B 133 B NR 1000 ST Beryllium U U NR U U NR U 1.2 NR U U NR 3 GV Cadmium U U NR U U NR U 5 NR U U NR 10 ST Calcium 118000 121000 NR 125000 140000 NR 9080 12700 NR 133000 136000 NR ---- Chromium U 8.5B NR U U NR U 6.9 B NR U U NR 50 ST Cobalt U 11.9B NR 77 84.5 NR U U NR U U NR ---- Copper U 11.88 7.3 B U U U U U U U U 7.3 B 200 ST Iron 1550 2110 498 '' 5390 1600 2520 79 B ' 636 54 B 518 311 610 300 ST Lead U U NR U 5 NR U U NR 5 U NR 25 ST Magnesium 32800 27100 18700 57800 64300 55000 1950 B 2910 B 3590 B 60300 56300 44700,;, 35000 GV Manganese 21700 20600, 38200 23500 15400 11800 40 40.2 19.5 1420 1540 425 300 ST Mercury U 0.4 NR U 0.75 NR U 0.56 NR U 0.88 NR 2 ST Nickel U 23.9B NR 36 B 32.2 B NR U U NR U 31.6 B NR ---- Potassium 72500 47700 NR 84000 86600 NR 3330 0 3050 B NR 53800 44300 NR ---- Selenium U U NR U U NR U U NR U U NR 10 ST Silver U U NR U U NR U U NR U U NR 50 ST Sodium 135000 86800 38300 155000 148000 163000 2400 B 4720 B 7020 167000 153000 90100 20000 ST Thallium U U NR U U NR U U NR U U NR 4 GV Vanadium U U NR U U NR U U NR U U NR ---- Zinc U 14.4B NR 19 B 58.7 NR U 12.213 NR U 46.9 NR 300 ST Cyanide U 30 U U 40 U U U U U 30 U 100 ST QUALIFIERS: NOTES: U: Analyzed for but not detected ST: Standard B: Value less than contract required GV: Guidance value limits but greater than instrument ----: Not established detection limits. : Exceeds standard/guidelines N/A: Not analyzed. NR: Not Required NM MN En i NB — r r E an MI E — EN MI IN E EN i SOUTHOLD LANDFILL GROUNDWATER SAMPLING RESULTS INORGANICS NYSDEC CLASS MW5S MW5S MW5S MW5D MW5D MW5D MW6S MW6S MW6S MW6D MW6D MW6D GA STANDARDS/ 7/25/91 7/28/92 1/28/93 7/25/91 7/27/92 1/28/93 7/24/91 7/24/92 1/27/93 7/24/91 7/24/92 1/27/93 GUIDELINES Constituent (ug/l) (ug/I) (ugh') (ug/I) (ug/l) (ug/I) (ug/I) (ug/I) (ug/I) (ugh!) (ug/I) (ug/I) (ug/l) Aluminum 460 537 NR 319 198 NR 754 255 NR U 56.9 NR ---- Antimony U U NR U U NR U U NR U U NR 3 GV Arsenic U U NR U U NR U U NR U U NR 25 ST Barium U 14.7 B NR 58 B 160 B NR 40 B 123 B NR 134 B 101 B NR 1000 ST Beryllium U U NR U U NR U U NR U U NR 3 GV Cadmium U U NR U U NR U U NR U U NR 10 ST Calcium U 1490 B NR 51100 83600 NR 42300 61200 NR 80400 78000 NR ---- Chromium U U NR U U NR U 14.2 NR U 7.6B NR 50 ST Cobalt U U NR U U NR U 14 B NR U 13.68 NR ---- Copper U U U U 22.2 B 11 B U 1013 U U U U 200 ST Iron 757 964 37.4 B 1030 616 457 17500 15000 22100 758 18400 25600 300 ST Lead 5 3.8 NR 8 5.4 NR 16 U NR U U NR 25 ST Magnesium 2160 B 2200 B 2410 B 28700 72400 ' 71500` 11100 15400 14100 39300' 38000 39700 35000 GV Manganese 110 122 13 B . 627 63.2 87.6 1590 3070 2850 13400'' 14200 14500 300 ST Mercury U U NR U 0.30 NR U 0.69 NR U U NR 2 ST Nickel U 18.5 B NR U 24 B NR U 35 B NR 51 32.9B NR ---- Potassium U U NR 377 3060 B NR 42500 37000 NR 44800 38100 NR ---- Selenium U U NR U U NR U U NR U U NR 10 ST Silver U U NR U U NR U U NR U U NR 50 ST Sodium 81200 ` 8720 10600 62600 131000 131000 85700 85200 53000 114000 99100 96300 20000 ST Thallium U U NR U U NR U U NR U U NR 4 GV Vanadium U U NR U U NR U 9.2 B NR U U NR ---- Zinc U 12.1 B NR 49 78.9 NR 20 21.2 NR 14 B 23.6 NR 300 ST Cyanide U U U U 10 U U U U U 10 U 100 ST QUALIFIERS: NOTES: U: Analyzed for but not detected. ST: Standard B: Value less than contract required GV:Guidance value limits but greater than instrument ----: Not established detection limits. : Exceeds standard/guidelines N/A: Not analyzed. NR: Not Required M E I M — M r NO all MN M M r E — R M SOUTHOLD LANDFILL GROUNDWATER SAMPLING RESULTS INORGANICS T PW001 PW001 PW002 PW002 NYSDEC CLASS MW7S MW7S MW7S MW7D MW7D MW7D GW-8 (GW-8) (GW-8) GW-6 (GW-6) (SW-6) GA STANDARDS/ 7/25/91 7/23/92 1/26/93 7/26/91 7/22/92 1/26/93_ 12/4/90 7/24/92 2/1/93 12/4/90 7/24/92 2/1/93 GUIDELINES Constituent (ug/I) (ug/I) (ug/l) (ug/I) _(ug/l) _(ug/I) (ugh!) (ug/l) (ug/I) (ug/I) (ugh') (ug/I) (ugh!) Aluminum 664 238 NR 8860 258 NR N/A 63 NR N/A 32.6 NR ---- Antimony U U NR U U NR N/A U NR N/A U NR 3 GV Arsenic U U NR U U NR U U NR U U NR 25 ST Barium 72E3 51.98 NR 110B 38.38 NR U 20.5B NR U 43.7B NR 1000 ST Beryllium U U NR U U NR N/A U NR N/A U NR 3 GV Cadmium U U NR U 6.3 NR U U NR U U NR 10 ST 1 Calcium 15600 14300 NR 10900 9320 NR U 5270 NR 36500 58900 NR ---- Chromium U U NR 21 U NR U U NR U U NR 50 ST Cobalt U U NR U U NR N/A U NR N/A U NR ---- Copper U U U 22 B U U U 107 62.1 284 268 241 200 ST Iron 22400 496 860 19200 535 403 U 8210 1150 280 U U 300 ST Lead U U NR 16 U NR U U NR U U NR 25 ST Magnesium 3490 B 3090 B 3860 B 6270 4680 B 4040 B U 5320 3730 B 9140 15100 13900 35000 GV Manganese 455 136 435 1090 34.1 19.5 U 203 77.8 U 7 B 6.5 B 300 ST Mercury U U NR U 0.34 NR 6 0.39 NR 0.7 0.36 NR 2 ST Nickel U U NR U U NR U U NR U 17 B NR ---- Potassium 5310 2800 NR 3920 B U NR U 4080 B NR U 7460 NR ---- Selenium U U NR U U NR N/A U NR N/A U NR 10 ST Silver U U NR U U NR U U NR U U NR 50 ST Sodium 16600 14200 12100 88600 70500 57200 8670 9870 9510 8730 11900 12700 20000 ST Thallium U U NR U U NR N/A U NR N/A U NR 4 GV Vanadium U U NR 31 B U NR N/A 10.1 B NR N/A 6.2 B NR ---- Zinc U 19.2 NR 67 33.4 NR 221 35.3 NR 38 50.2 NR 300 ST Cyanide U U U U U U N/A U U N/A U U 100 ST QUALIFIERS: NOTES: U: Analyzed for but not detected. ST: Standard B. Value less than contract required GV:Guidance value limits but greater than instrument ----: Not established detection limits. : Exceeds standard/guidelines N/A: Not analyzed. NR: Not Required 1 all N N E IIIIII all all E M M 1 I I IIIIII NM N IIIIII E SOUTHOLD LANDFILL GROUNDWATER SAMPLING RESULTS INORGANICS PW003 PW004 PW005 PW006 NYSDEC CLASS GW-5 (GW-5) WS-11 (WS-11) WS-4 (WS-4) WS-6 (WS-6) S68916 S68916 S68916 GA STANDARDS/ 12/4/90 7/24/92 8/80 2/1/93 9/12/89 2/1/93 8/80 2/1/93 12/4/90 7/29/92 1/29/93 GUIDELINES Constituent (ug/I) (ugh') (ug/I) (ug/I) (ug/I) (ug/i) (ug/I) (ug/I) (ug/I) (ugh') (ug/l) (ug/l) Aluminum N/A 32.6 N/A NR N/A NR N/A NR N/A 153 NR ---- Antimony N/A U N/A NR N/A NR N/A NR N/A U NR 3 GV Arsenic U U N/A NR N/A NR U NR U U NR 25 ST Barium U 51.9 B N/A NR N/A NR U NR U 106 B NR 1000 ST Beryllium N/A U N/A NR N/A NR N/A NR N/A U NR 3 GV Cadmium U 5 N/A NR N/A NR U NR U U NR 10 ST Calcium 56600 37000 N/A NR N/A NR N/A NR 6830 58400 NR ---- Chromium U U N/A NR N/A NR U NR 20 U NR 50 ST Cobalt N/A U N/A NR N/A NR N/A NR N/A 15 B NR ---- Copper 156 83.2 170 758 ;I 110 25.6 U 65.8 31 18.6 B 7.3 B 200 ST Iron 250 U 270 120 540 743 320 ' ' 191 10100 6530 17100 300 ST Lead U U N/A NR N/A NR U NR 64 U NR 25 ST Magnesium 12400 11300 N/A 26600 N/A 21300 N/A 19100 43400 40700 33600 35000 GV Manganese U 7.2 B 50 16.2 U 26 U 22.7 3020. 2180 2590 300 ST ...:... .. ............ ..........................:........ ................... Mercury 0.8 0.24 N/A NR N/A NR U NR 3 U NR 2 ST Nickel U U N/A NR N/A NR N/A NR U U NR ---- Potassium U 4320 N/A NR N/A NR N/A NR 167000 118000 NR ---- Selenium N/A U N/A NR N/A NR U NR N/A U NR 10 ST Silver U U N/A NR N/A NR U NR U U NR 50 ST Sodium 27100 8860 14100 13900 16600 20300 20400 2760.0 . . 158000 111000 111000;! 20000 ST Thallium N/A U N/A NR N/A NR N/A NR N/A U NR 4 GV Vanadium N/A U N/A NR N/A NR N/A NR N/A U NR ---- Zinc 405 32.1 U NR U NR U NR 20 28.8 NR 300 ST Cyanide N/A U N/A U N/A U N/A U N/A 40 U 100 ST QUALIFIERS: NOTES: U: Analyzed for but not detected. ST: Standard B: Value less than contract required GV: Guidance value limits but greater than instrument ----: Not established detection limits. Exceeds standard/guidelines N/A: Not analyzed. NR: Not Required M E NM UN NM - MI - E 1 N R - 1 MN 1 - EN MI SOUTHOLD LANDFILL GROUNDWATER SAMPLING RESULTS INORGANICS PW003 PW004 PW005 PW006 NYSDEC CLASS GW-5 (GW-5) WS-11 (WS-11) WS-4 (WS-4) WS-6 (WS-6) S68916 S68916 S68916 GA STANDARDS/ 12/4/90 7/24/92 8/80 2/1/93 9/12/89 2/1/93 8/80 2/1/93 12/4/90 7/29/92 1/29/93 GUIDELINES Constituent (ug/I) (ugh') (ug/I) (ug/l) (ug/I) (ugh!) (ug/I) (ug/I) (ug/I) (ugh') (ug/I) (ug/l) Aluminum N/A 32.6 N/A NR N/A NR N/A NR N/A 153 NR ---- Antimony N/A U N/A NR N/A NR N/A NR N/A U NR 3 GV Arsenic U U N/A NR N/A NR U NR U U NR 25 ST Barium U 51.9 B N/A NR N/A NR U NR U 106 B NR 1000 ST Beryllium N/A U N/A NR N/A NR N/A NR N/A U NR 3 GV Cadmium U 5 N/A NR N/A NR U NR U U NR 10 ST Calcium 56600 37000 N/A NR N/A NR N/A NR 6830 58400 NR ---- Chromium U U N/A NR N/A NR U NR 20 U NR 50 ST Cobalt N/A U N/A NR N/A NR N/A NR N/A 15 B NR ---- Copper 156 83.2 170 758 110 25.6 U 65.8 31 18.6 B 7.3 B 200 ST Iron 250 U 270 120 540 743 320 • 191 10100 6530::` 17100 300 ST Lead U U N/A NR N/A NR U NR 64 U NR 25 ST Magnesium 12400 11300 N/A 26600 N/A 21300 N/A 19100 43400 40700'. 39600 35000 GV Manganese U 7.2 B 50 16.2 U 26 U 22.7 3020 2180 2590 300 ST Mercury 0.8 0.24 N/A NR N/A NR U NR 3 U NR 2 ST Nickel U U N/A NR N/A NR N/A NR U U NR ---- Potassium U 4320 N/A NR N/A NR N/A NR 167000 118000 NR ---- Selenium N/A U N/A NR N/A NR U NR N/A U NR 10 ST Silver U U N/A NR N/A NR U NR U U NR 50 ST Sodium 27100'` 8860 14100 13900 16600 20300 20400 27600 158000 '>117000 111000' 20000 ST Thallium N/A U N/A NR N/A NR N/A NR N/A U NR 4 GV Vanadium N/A U N/A NR N/A NR N/A NR N/A U NR ---- Zinc 405 32.1 U NR U NR U NR 20 28.8 NR 300 ST Cyanide N/A U N/A U _ N/A U N/A U N/A 40 U 100 ST QUALIFIERS: NOTES: U: Analyzed for but not detected. ST: Standard B: Value less than contract required GV: Guidance value e limits but greater than instrument ----: Not established detection limits. : Exceeds standard/guidelines N/A: Not analyzed. NR: Not Required - NM UN Nil 11111 RN 1111 111111 Ell 11111 IN Ell NMI 1111 - 1111 1.11 11111 SOUTHOLD LANDFILL GROUNDWATER SAMPLING LEACHATE PARAMETERS NYSDEC CLASS MW1S MW1S MW1S MW1D MW1D MW1D MW2S MW2S MW2S MW2D MW2D MW2D GA STANDARDS/ 7/25/91 7/22/92 1/26/93 7/25/91 7/22/921/26/93 7/24/91 7/23/92 1/27/93 7/24/91 7/28/92 1/27/93 GUIDELINES Color,Pt/Co. 10 <10 NR 10 20 NR 50 150 NR 75 40 NR ---- Turbidity,N.T.U. 255 3760 548 26 60 12.9 244 400 534 17.5 8 5.2 ---- Results in mg/I: Alkalinity 13 9 NR 46 40 NR 689 932 NR 192 790 NR ---- Ammonia Nitrogen 0.17 U 0.09 0.09 U <0.05 92.6 .::.67.2 68:4 88.0 461 49 9 2 ST Biochemical Oxygen Demand 5 U NR U U NR 3 8 NR U 40 NR ---- Chloride 26 34 57 24 19 16 133 216 180 $33 . 3 376 250 ST Chemical Oxygen Demand 7 83 NR U 16 NR 189 188 NR 143 129 NR ---- Hardness 26 232 NR 100 148 NR 390 408 NR 620 720 NR ---- Hexavalent Chromium N/A 0.03 <0.01 N/A 0.02 <0.01 N/A U <0.01 N/A U <0.01 0.05 ST .................. ................. .................. Nitrate 0.15 1.05 2.69 1.69 2.04 1.56 0.34 0.10 <0.04 U ` 1; ? 2.12 10 ST Phenol 01030 U 0.02': 0 010'` U <0.01 0.020: 0 03 <0.01 0.020' : 0.02 <0.01 0.001 ST Sulfate 20 22 NR 58 41 NR 77 85 NR 71 63 NR 250 ST Total Dissolved Solids N/A 186 NR N/A 216 NR N/A 1400 NR N/A 1514 NR ---- Total Kjeldahl Nitrogen 0.40 1.18 NR 2.69 1.99 NR 100 74.3 NR 90 60.2 NR ---- Total Organic Carbon 9.1 3.19 NR 7.4 2.1 NR 2.25 55.6 NR 253 40.4 NR ---- Boron U 0.067 U U 0.058 U U 0.797 0.157 0.938 104 0.735 1ST QUALIFIERS: NOTES: U: Analyzed but not detected ST: Standard N/A: Not analyzed GV: Guidance value NR: Not Required ----: Not established. : Value exceeds allowable standard/guidance value. 1111 111111 NS NM 11111 Ell 11111 11111 NE MIN 11111 1111 Ell EN 111111 MN NM 11111 NI 1 SOUTHOLD LANDFILL GROUNDWATER SAMPLING LEACHATE PARAMETERS 'NYSDEC CLASS MW3S MW3S MW3S MW3D MW3D MW3D MW4S MW4S MW4S MW4D MW4D MW4D GA STANDARDS/ 7/25/91 7/23/92 1/27/93 7/25/91 7/2092 1/27/93 7/26/91 7/28/92 1/28/93 7/26/91 7/28/92 1/28/93 GUIDELINES I Color, Pt/Co. 75 40 NR ' 50 20 NR 10 <10 NR 125 20 NR ---- Tu/h\di{y, N.T.U. 1820 1050 288 75 15 27 700 620 594 24 32 23 ---- . � 1 Results in mg/I: Alkalinity 682 666 NR 707 624 NR 6 16 NH 546 522 NR ---- Ammonia Nitrogen 38.3 293 25.8 26.1° 24.0 28.1 U «0.05 <0.05 2 ST � Biochemical Oxygen Demand 6 6 NR U 21 NR U U NR U 7 NR ---- Chloride 293 239 168 274 297 317 5 10 18 290 273 193 250 ST Chemical Oxygen Demand 170 193 NR 92 74 NR 10* 51 NR 93 74 NR ---- Hardness 530 452 NR 640 684 NR 32 64 NR 650 618 NR Hexavalent Chromium N/A U «0.01 N/A U «0.01 N/A U <0.01 N/A U «0.01 0.05 ST Nitrate 0.89 0.67 <0.04 U 1.48 1.93 0.64 2.14 7.31 0.91 0.71 0.87 10 ST Phenol '� 0 020 0 02 «��O1 0.030� 041 0.03 ' 0.030U �U�O1 )=0.030 0.02===° <0.01 0.001 ST Sulfate 56 28 NR 78 88 NR 25 23 NR 153 179 NR 250 ST Total Dissolved Solids N/A 1135 NR N/A 1205 NR N/A 99 NR N/A 1260 NA ---- Total Kjeldahl Nitrogen 46.1 29.7 NR 30.4 27.4 NR 1.18 2.14 NR 37.8 35.3 NR ---- To(a| OrganiuCorbnn 233 36.5 NR 192 19 NR 4 2.4 NR 135 1.3 NR ---- Boron 0.614 0.692 U 0.828 0.696 0.536U 0.143 U 0.617 U 0.151 1 ST QUALIFIERS: NOTES: U: Analyzed but not detected ST: Standard N/A: Not analyzed GV: Guidance value NA: Not Required --: Not established. : Value exceeds allowable standard/guidance value IIMI Ell Ell EN I= 11111 ION MI MN 111111 1111 NE 111111 11111 MI OM EN MN UN / 1 SOUTHOLD LANDFILL GROUNDWATER SAMPLING LEACHATE PARAMETERS ' NYSDEC CLASS MW5S K8W58 MW5S MW5D MW5D MW5D MW6S MW6S MW6S MWGD MW6D MWGO GA STANDARDS/ - ' 7D5/91 7/28/92 1/28/93 7/25/91 7/27/92 1/28/93 7/24/91 7/24/92 1/27/93 7/24/91 7/24/92 1/27/93 GUIDELINES Color,Pt/Co. 15 20 NR 15 40 NR 35 40 NR 50 10 NR ---- I Turbidity, N.T.U. 495 210 210 13.5 16 11.2 113 180 288 3.8 280 189 ---- Results in mg/I: Alkalinity 8 12 NR 230 426 NR 267 320 NR 401 434 NR ---- Ammonia Nitrogen U U <0.05 U U <0D5 2ST Biochemical Oxygen Demand U U NR 353 U NR u 3 NR 5 8 NR ---- Chloride 14 11 17 115 42 49 45 150 160 161 250 ST Chemical Oxygen Demand 24 16 NR 492 65 NR 41 79 NR 41 60 NR ---- Hardness 16 28 NR 290 586 NR 160 228 NR 396 480 NR ---- Hexavalent Chromium N/A U <0.01 N/A U <0.01 N/A U 0.04 N/A 0.02 0.04 0.05 ST Nitrate U 0.04 0.07 0.21 U <0.04 0.13 U <0.04 0D8 U <0.04 10 ST Phenol m9U «0.01 0.0 3 0 0.02 °O.O1 0.020 ^`� m`01 <0 01 wx20 U �U.O1 0.001 ST Sulfate 11 12 NR 70 78 NR 128 121 NR 157 156 NR 250 ST Total Dissolved Solids N/A 82 NR N/A 1076 NR N/A 635 NR N/A 981 NR ---- Total Kjeldahl Nitrogen 0.23 0.07 NR 1.18 0.59 NR 13.15 10.1 NR 21.6 19.7 NR ---- Total Organic -ToalOn]onic Carbon 2.2 26.8 NR 149 1.3 NR 92.6 20.4 NR 78.6 5.9 NR -- 8o/on U 0.534 U 0.221 U U 0.159 0.252 U 0.383 0.326 0.393 1 ST - QUALIFIERS: NOTES: U: Analyzed but not detected ST: Standard 1 N/A: Not analyzed GV:Guidance value NR: ' No� � __� established. 1 :Value exceeds allowable standard/guidance value. 1 - Ell MI MO EN MI INI1 IIMI N11 all 11111 1111 111111 11111 OM NMI 111111 ION - SOUTHOLD LANDFILL GROUNDWATER SAMPLING LEACHATE PARAMETERS PW001 PW001 PW002 PW002 PW003 ' PW004 NYSDEC CLASS MW7S MW7S MW7S MW7D MW7D MW7D (GW-8) (GW-8) (GW-6) (GW-6) (GW-5) WS-11 (WS-11) GA STANDARDS/ 7/25/91 7/23/92 1/26/93 7/26/91 7/22/92 1/26/93 7/24/92 2/1/93 7/24/92 2/1/93 7/24/92 8/80 2/1/93 GUIDELINES Color,Pt/Co. 15 40 NR 250 <10 NR 20 NR <10 NR <10 N/A NR ---- Turbidity, N.T.U. 154 620 740 516 10 8.6 153 5.8 0.27 0.01 0.30 N/A 0.01 ---- Results in mg/I: Alkalinity 46 33 NR 60 38 NR 36 NR 10 NR 14 12 NR ---- Ammonia Nitrogen 0.15 0.25 0.11 0.10 U <0.05 0.59 0.16 U <0.05 0.06 U <0.05 2 ST Biochemical Oxygen Demand U 7 NR U U NR 6 NR U NR U N/A NR ---- Chloride 13 18 12 74 80 49 14 10 48 45 31 33 52 250 ST Chemical Oxygen Demand U 60 NR 32 20 NR 16 NR 24 NR 16 N/A NR ---- Hardness 78 228 NR 50 80 NR 220 NR 264 NR 140 170 NR ---- Hexavalent Chromium N/A 006 <0.01 N/A 0.01 <0.01 U 0.01 U <0.01 U N/A <0.01 0.05 ST Nitrate 1.39 0.75 1.82 11.!9 9.80 13 1.32 1.82 10.S 9.94 8.49 7.7 14.7 10 ST Phenol 0,020 U <0.01 0.010 U <0.01 U 0:01 U <0.01 U N/A <0.01 0.001 ST Sulfate 26 51 NR 49 29 NR 16 NR 92 NR 75 114 NR 250 ST Total Dissolved Solids N/A 173 NR N/A 358 NR 108 NR 477 NR 337 N/A NR ---- Total Kjeldahl Nitrogen 1.56 1.00 NR 12.7 9.52 NR 2.15 NR 8.30 NR 7.73 N/A NR ---- Total Organic Carbon 48.6 3.19 NR 12.9 1.73 NR U NR U NR U N/A NR ---- Boron U 0.099 U U 0.04 U 0.087 U 0.104 _ U 0.163 N/A _ U 1 ST QUALIFIERS: NOTES: U: Analyzed but not detected ST: Standard N/A: Not analyzed GV:Guidance value NR: Not Required ----: Not established. Value exceeds allowable standard/guidance value. N���� In ���� ���� ��N�� N��IN ���� ���N� �N�N� NM �N�N1 ��N�� �1N1 0��l 11111 NE N���� Ell NII�K ���� ~~�� ~~~�. ~~~~~ ___- -_-_ _-__� ----- ____ -_�_ ���� | SOUTHOLD LANDFILL GROUNDWATER SAMPLING LEACHATE PARAMETERS _ _ PVVOO5 PVVOOG ' NYSDEC CLASS WS-4 (WS-4) WS-6 (WS-6) S-68916 S-68916' S-68831 S-68831 FIELD BLK DW-1 GA STANDARDS/ 9/12/89 2/1/93 8/80 2/1/93 7/29/921/29/93 7/29/92 1/29/93 7/24/92 1/28/93GUIDELINES Color,Pt/Co. N/A NR N/A NR 80 NR 20 NR <10 NR ---- Turbidity,N.T.U. N/A 2.7 N/A 0.1 53 50 9.2 62 0.50 <0.1 -- Results in mg/ Alkalinity N/A NR 14 NR 718 NR 122 NR 31 NR -- AmmoniuN�nogen U <O.US U «0.05 0.87 <OlB U <0.05 2 ST ! Biochemical Oxygen Demand N/A NR N/A NR 107 NR 8 NR U NR ---- Chloride —Ch|orido 42 51 28 46 212 187 13 9 14 18 250 ST Chemical Oxygen Demand N/A NR N/A NR 177 NR 33 NR U NR ---- Hardness N/A NR 114 NR 402 NR 64 NR 84 NR ---- Hexavalent Chromium N/A «0.01 N/A <0.01 U «0.01 <0.01 U <001 0.05 ST Nitrate 101 9.46 11 8.03 1.12 0.20 U 0.14 5.31 10 ST Phenol N/A <001 U <0.01 «001 U m0.01 U <001 0.001 ST Sulfate 66 0R 58 NR 77 NR 7 NR 47 NR 250 ST 1 Total Dissolved Solids N/A NR N/A NH 1007 NR 158 NR U NR ---- Total Kjeldahl Nitrogen N/A NR N/A NR 93.9 0R 0.82 NR 5.47 NR -- 1 Total Organic Carbon N/A NR N/A NH 25 NR 5.4 NR U NR ---- Boron N/A U N/A U 0.590 0.423 0.077 U 0.007 U 1 ST QUALIFIERS: NOTES: U: Analyzed but not detected ST Standard 1 N/A: Not analyzed GV: Guidance value NR: Not Required ----:Not established. �:Value exceeds allowable standard/guidance value. , 1