EPA Region 5 Records Ctr.

248326 Bloomington Project P.O. Box 997 Corporation Bloomington, IN 47402 (812)334-0030 (812) 334-7855 (Fax)

May 19,1999

Mr. Thomas Alcamo U.S. EPA, Region V 77 W. Jackson Boulevard Mail Stop HSRL-6J Chicago, IL 60604

Mr. Vincent Epps Indiana Department of Environmental Mgmt Office of Environmental Response 2525 N. Shadeland Avenue Indianapolis, IN 46219

Mr. Dennis Williamson Administrator Monroe County Health Department 119 West Seventh Street Bloomington, IN 47404

SUBJECT: Preliminary Report of Delineation Sampling and Analysis and Addendum to Sampling and Analysis Plan, Bennett's Dump Site, Bloomington, Indiana

Dear Sirs:

The letter represents a preliminary report of the analytical data generated to date from the delineation sampling conducted at Bennett's Dump in March 1999. In addition, this letter constitutes an addendum to the February 15,1999, Soil Delineation Sampling and Analysis Plan for this site. This addendum is necessary to perform additional sampling to effectively delineate the site and to address the potential for other contaminants.

SUMMARY OF COMPLETED FIELD ACTIVITIES

Delineation Sampling of the Main Area

From March 1 through 18, 1999, soil samples were collected from 78 grids inside the main area of the Bennett's Dump site. An additional 19 grids were sampled outside the fence line along the Monon Railroad tracks to the west, along the gravel access road to May 19, 1999 Page 2

the south, and in the vacant field on the east side of the main area. One boring was also installed along the south fence line (grid line D2/E2) and two borings were installed along the west fence line (grid lines B12/B13 and B13/B14) to determine the possible presence and concentration of PCBs at the site fence. Samples were collected at 12-in. depth intervals from the center of each grid or partial grid starting at the ground surface in accordance with the Soil Delineation Sampling and Analysis Plan. Quality control samples were collected in accordance with the Soil Delineation Sampling and Analysis Plan. Borings were advanced using direct-push sampling methods generally to sampler refusal at the bedrock surface.

Table 1 presents the analytical results for this investigation, along will all sample numbers, dates, and depth intervals for each sample. Figure 1 presents a color representation of the 50-ft by 50-ft grids showing the results of the investigation. Borings where all depth intervals exhibited PCB results below 50 ppm are represented in blue. Grids where one or more depth intervals contain PCBs in excess of 50 ppm are represented in red, and the impacted depth intervals are shown on the grid.

4.2.2 Delineation Sampling of the Satellite Area

On March 18, 1999, soil samples were collected from four random locations in the satellite area. Samples were collected at 12-in. depth intervals to refusal using hand auger sampling methods. At three locations (BDSA-1, BDSA-3, and BDSA-4), bedrock was encountered at depths of 8 to 9 inches below ground surface. At the fourth location (BDSA-2), bedrock was encountered at a depth of 1.75 ft below ground surface. Quality control samples were collected in accordance with the Soil Delineation Sampling and Analysis Plan.

Polychlorinated biphenyls (PCBs) were found at concentrations exceeding 50 ppm at a depth of 0 to 0.67 ft below ground surface at BDSA-1 and at 0 to 1 ft below ground surface at BDSA-2 in the satellite area. Table 1 presents the sample numbers, dates, depth intervals for each sample, and analytical results.

ADDITIONAL SAMPLING ACTIVITIES

CBS is proposing four additional soil sampling efforts to more fully delineate the Bennett's Dump site. These include: 1) additional 25-ft by 25-ft grid sampling adjacent to outlying 1983 EPA borings, 2) the further delineation of isolated deep borings, 3) further delineation of the satellite area, and 4) limited sampling for additional contaminants.

Except as specifically described below, all sampling will be conducted in accordance with the procedures described in the Soil Delineation Sampling and Analysis Plan dated February 15, 1999. May 19, 1999 Page 3

Delineation of Areas Around 1983 USEPA Borings.

In June 1983, the USEPA conducted a removal action at the Bennett's Dump site. This action is documented in a report entitled "On Site Coordinator's Report, Immediate Removal Project 68-95-0076, Bennett's Quarry, Bloomington, Indiana," June 1993. According to the report, the removal action included the installation of 63 soil borings and the analysis of 166 samples for PCBs. This sampling was performed using a 50-ft by 50-ft grid system. Figure 2 presents the PCB soil analytical results from that effort, overlain on a current site map. Borings were installed to a maximum depth of 6.5 ft, although many of the borings encountered bedrock before reaching that depth. Samples were typically collected for analysis at 6-in. depth intervals from 0 to 0.5 ft, 2.0 to 2.5 ft, and 5.0 to 5.5 ft.

Figure 3 presents an overlay of the EPA boring locations on the current preliminary excavation map of the Bennett's Dump site. Each EPA boring location in this figure is represented by either a red bullet (representing borings containing at least 1 sample showing ^50 ppm PCBs) or a blue bullet (representing borings below 50 ppm PCBs).

As the figure shows, only one EPA boring location (at the NE corner of Grid E7) is not either encompassed by or adjacent to a defined excavation area. A number of EPA borings, however, are on the edge of the defined excavations. Several of these locations exhibited high PCB concentrations.

CBS proposes to determine whether additional material should be incorporated into the excavation area adjacent to these locations by sampling 25-ft by 25-ft grids beyond the current excavation limits. Figure 4 shows the locations of these additional grids.

Sampling in each grid will be performed in accordance with the procedures described in the February 15 Plan. Sampling will be performed to the deeper of either: (a) 1 foot below the deepest EPA sample in the subject boring showing PCBs above 50 ppm, or (b) 1 foot below the deepest CBS sample showing PCBs above 50 ppm in any adjacent grid. Samples will be collected at 1-ft depth intervals.

The results of this additional sampling will be used to revise the preliminary excavation map presented in Figure 2. Regardless of the results of the subgrid sampling, however, the excavation will be extended by a couple feet in the locations of the previously hot USEPA data to ensure that the represented material has been excavated.

Further Delineation of Deep Borings

There are several boring locations in the preliminary data shown on Figure 1 where a single boring shows PCB contamination to a substantial depth while all or most of the adjacent grids show only shallow PCB impacts. CBS is concerned that some of these May 19, 1999 Page 4

deep borings may be due to the carry down of contaminants by the direct-push sampling equipment and may not represent a large (50-ft by 50-ft) area of contamination.

In order to determine whether deeper contamination is widespread in these locations, CBS proposes to install further borings in each of the following grids: B12, B14, C6, Cl 1, C14, C15, C16, G8, and H7.

In each of these locations, CBS will initially assume that a 25-ft by 25-ft area at the center of the grid contains PCBs as represented by the boring. Four additional borings will be installed at the corners of this center subgrid to determine whether the remaining portions of the grid are impacted, and to what depths. Figure 5 shows these boring locations in each of the nine grids. Sampling will be conducted to the impacted depth shown in the original boring.

Further Delineation of the Satellite Area

Two of the five samples collected in the satellite area during the March sampling exhibited PCB concentrations in excess of 50 ppm. As a result, additional delineation will be conducted on a grid basis in this area. Due to the obstructions in this area, the grid system for this area and the number of samples to be collected will be established in the field.

Sampling For Other Contaminants

Several 55-gallon drums have been identified at the Bennett's site in the vicinity of Grids G7 and G8. Most of these drums are crushed and empty, but one contains liquid material and has subsequently been overpacked. In addition, soil from grid H7 was reported to exhibit a solvent-like odor.

To evaluate the possibility of other contaminants at the site, CBS is proposing a three- part investigation approach, as described below.

Drum Sampling

CBs will collect and analyze one sample from the overpacked drum. This sample will be analyzed initially for volatiles and hazardous characteristics.

TCLP Sampling

CBS will collect 4 composite samples for full TCLP waste characterization, which will represent the four areas of excavation at the site. Specifically, one composite TCLP sample will be collected from the north area, the southwest area, the east area around grids G7 and G8, and the satellite area. All aliquots will be collected from grids and depth intervals representative of the soil to be removed. May 19, 1999 PageS

Grid-Based Volatiles Sampling

CBS will collect 13 soil samples in the area of the drums to determine whether the previously delineated PCB soils are also impacted by other contaminants that may affect disposal alternatives. These preliminary delineation samples will be collected at the following locations and depth intervals:

• H7: 0- 1ft, 3-4 ft, 6-7 ft • G6: 1-2 ft • G8:0- 1ft, 3-4 ft, 6-7 ft, 11-12 ft • F6:7-8ft • H8:0-lft • F9:0-lft • G7:0-lft • E6:7-8ft

All of the sampling locations described above have previously been determined to contain PCBs in excess of 50 ppm. These samples will be analyzed for total volatiles using EPA Method 8240. CLOSING

CBS intends to initiate the sampling described in this Addendum on Monday, May 24, 1999. Your prompt attention in reviewing this plan is greatly appreciated.

Sincerely,

Dorothy M. Alke Director, Bloomington Project cc: John Langley, Utilities Service Board Kostas Dovantzis, Tetra Tech Jim Patrick, CBS Mike Hessling, PSARA (w/o attachment) 11x17-HBase.dwfl LEGEND No. Revision By: Date CBS CORPORATION

Figure 1. PCB Concentration at the 0.5-ft. depth interval 1983 USEPA Sample Results PCB Concentration at the 2.5-ft. depth interval Bennett's Dump Site Bloomington, Indiana PCB Concentration at the 5.5-ft. depth interval TECHNOLOGIES, EMC. Drawn By: Date: Scale: SAS 3/24/99 As Shown 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

11X17-H Base.dwg LEGEND No. Revision By: Date CBS CORPORATION

2 Figure 2, Results of Phase I Delineation °- Phase I delineation grid containing PCBs a50 ppm and depth interval impacted, ft. Sampling, March 1 -18,1999 Bennett's Dump PSAR\ Phase I delineation grid determined as not PCB-impacted. Bloomington, Indiana TECHNOLOGIES, INC. Drawn By: Date: Scale: SAS 5/19/99 1"=100" 8 9 10 11 12 13 14 15 16 17 18

11X17-H Base.dwg LEGEND No. Revision By: Date CBS CORPORATION

USEPA Sample Location (1983) - PCS concentration 0 -2 Phase I delineation grid containing RGBs >50 ppm and depth interval impacted, ft. Figure 3, USEPA (1983) and Phase I <50 ppm in all samples at all depths. Delineation Results (March 1999) Bennett's Dump Phase I delineation grid determined as not PCB-impacted. USEPA Sample Location (1983) - PCB concentration Bloomington, Indiana PSAR\ ppm in at least one depth interval. TECHNOLOGIES, INC. Drawn By: Date: Scale: SAS 5/19/99 1"=100" 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

11X17-H Base.dwg LEGEND No. Revision By: Date CBS CORPORATION

Phase I delineation grid containing PCBs a50 ppm USEPA Sample Location (1983) - PCB concentration Figure 4, 25-ft by 25-ft Perimeter Grids <50 ppm in all samples at all depths. Adjacent to 1983 USEPA Borings Bennett's Dump Phase I delineation grid determined as not PCB-impacted. USEPA Sample Location (1983) - PCB concentration Bloomington, Indiana PSAR\ a50 ppm in at least one depth interval. TECHNOLOGIES, INC. Drawn By: Date: Scale: Phase II subgrid to be sampled SAS 5/19/99 1" = 100' 9 10 11 12 13 14 15 16 17 18

11X17-H Base.dwg LEGEND No. Revision By: Date CBS CORPORATION

- New Boring Location Figure 5, Additional Borings to Delineate Isolated Deep grids TT v. Area to be Excavated — — 0-7 - Area Evaluated by Additional Boring Bennett's Dump Site PS Based on Previous Boring Bloomington, Indiana TECHNOLOGIES, INC. Drawn By: Date: Scale: SAS 3/24/99 As Shown Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

F-6 BD1001 3/1/99 1515 Grid F-6; cap Otol <1.0 BD1002 3/1/99 1663 Grid F-6; clay Ito2 <1.0 BD1003 3/1/99 1663 Grid F-6; clay 2 to 3 <1.0 BD1004 3/1/99 1663 Grid F-6; clay 3 to 4 <1.0 BD1005 3/1/99 1663 Grid F-6; clay 4 to 5 <1.0 BD1006 3/1/99 1663 Grid F-6; fill 7 to 8 1430 Bedrock @ 8 ft E-6 BD1007 3/1/99 1663 Grid E-6; cap Ito2 18 BD1008 3/1/99 1663 Grid E-6; clay 2 to 3 10 BD1009 3/1/99 1663 Grid E-6; clay 3 to 4 6.1 BD1010 3/1/99 1663 Grid E-6; clay/fill 4 to 5 1450 BD1011 3/1/99 1663 Dupl. of BD1010 4 to 5 1080 BD1012 3/1/99 1663 Grid E-6; fill 5 to 6 3080 Bedrock @ 6 ft D-6 BD1013 3/1/99 1663 Grid D-6; cap/clay Ito2 5.0 BD1014 3/1/99 1663 Grid D-6; clay 2 to 3 1.8 BD1015 3/1/99 1663 Grid D-6; clay /fill 3 to 4 1060 BD1016 3/1/99 1663 Grid D-6; fill 4 to 5 150 BD1017 3/1/99 1664 Grid D-6; fill 5 to 6 12 BD1018 3/1/99 1664 Grid D-6; fill 6 to 7 35 BD1019 3/1/99 1664 Grid D-6; fill 7 to 8 28 BD1020 3/1/99 1664 Grid D-6; fill Dupl. of BD1019 7.5 BD1021 3/1/99 1664 Grid D-6; fill 8 to 9 6.0 BD1022 3/1/99 1664 Grid D-6; fill 9 to 10 3.0 BD1023 3/1/99 1664 Grid D-6; clayey gravel 10 to 11 11 BD1024 3/1/99 1664 Grid D-6; clayey gravel 11 to 12 8.6 BD1025 3/1/99 1664 Grid D-6; clay 12 to 13 5.3 Bedrock @ 12.5 ft BD1026 3/1/99 1664 Equipment rinseate NA 48 ug/L

D-5 BD1027 3/1/99 1664 Grid D-5; cap /clay Otol <1.0 BD1028 3/1/99 1664 Grid D-5; clay 1 to 2 <1.0 BD1029 3/1/99 1664 Grid D-5; clay 2 to 3 3.5 BD1030 3/1/99 1664 Grid D-5; clay/fill 3 to 4 1060 BD1031 3/1/99 1664 Grid D-5; fill 4 to 5 23 BD1032 3/1/99 1665 Dupl. of BD1031 4 to 5 37 BD1033 3/1/99 1665 Grid D-5; fill /clay 5 to 6 9.9 BD1034 3/1/99 1665 Grid D-5; clay 6 to 7 1.3 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

BD1035 3/1/99 1665 Grid D-5; clay 7 to 8 1.1 BD1036 3/1/99 1665 Grid D-5; clay 8 to 9 <1.0 BD1037 3/1/99 1665 Grid D-5; clay 9 to 10 <1.0 BD1038 3/2/99 1667 Grid D-5; clay 10 to 11 1.3 BD1039 3/2/99 1667 Grid D-5; clay 11 to 12 1.6 BD1040 3/2/99 1667 Grid D-5; clay 12 to 13 1.9 BD1041 3/2/99 1667 Duplicate of BD1040 12 to 13 1.4 Bedrock @ 13 ft

E-5 BD1042 3/2/99 1667 Grid E-5; cap /clay Otol 1.0 BD1043 3/2/99 1667 Grid E-5; clay Ito2 <1.0 BD1044 3/2/99 1667 Grid E-5; clay 2 to 3 <1.0 BD1045 3/2/99 1667 Grid E-5; clay 3 to 4 <1.0 BD1046 3/2/99 1667 Grid E-5; clay/fill 4 to 5 880 BD1047 3/2/99 1667 Grid E-5; fill 5 to 6 800 Bedrock @ 8.5 ft

C-12 BD1048 3/2/99 1667 Grid C-12; clay 2 to 3 20 BD1049 3/2/99 1667 Grid C-12; clay/fill 3 to 4 490 BD1050 3/2/99 1667 Grid C-12; fill 4 to 5 310 BD1051 3/2/99 1667 Dupl. of BD1050 4 to 5 340 Bedrock @ 6.5 ft

C-13 BD1052 3/2/99 1667 Grid C-13; clay 2 to 3 520 BD1053 3/2/99 1668 Grid C-13; clay/fill 3 to 4 7750 Refusal @ 4 ft

C-14 BD1054 3/2/99 1668 Grid C-14; clay Ito2 1.3 BD1055 3/2/99 1668 Grid C-14; clay 2 to 3 45 BD1056 3/2/99 1668 Grid C-14; clay/fill 3 to 4 4460 BD1057 3/2/99 1668 Grid C-14; fill 4 to 5 11100 BD1058 3/2/99 1668 Grid C-14; fill 5 to 6 4890 BD1059 3/2/99 1668 Grid C-14; fill 8 to 9 4040 BD1060 3/2/99 1668 Grid C-14; clay 9 to 10 2210 BD1061 3/2/99 1668 Dupl. of BD1060 9 to 10 1820 BD1062 3/2/99 1668 Grid C-14; clay 10 to 11 1730 BD1063 3/2/99 1668 Grid C-14; clay 11 to 12 1530 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

BD1064 3/2/99 1668 Grid C-14; clay 12 to 13 420 Bedrock @ 12.5 ft

C-15 BD1065 3/2/99 1668 Grid C-15; cap /clay Otol 17 BD1066 3/2/99 1668 Grid C-15; clay Ito2 8.1 BD1067 3/2/99 1668 Grid C-15; clay 2 to 3 41 BD1068 3/2/99 1669 Grid C-15; fill 3 to 4 770 BD1069 3/2/99 1669 Grid C-15; fill 4 to 5 770 BD1070 3/2/99 1669 Grid C-15; fill 5 to 6 570 BD1071 3/2/99 1669 Dupl. of BD1070 5 to 6 550 BD1072 3/2/99 1669 Grid C-15; fill 6 to 7 17 BD1073 3/2/99 1669 Grid C-15; fill/clay 8 to 9 68 BD1074 3/2/99 1669 Grid C-15; clay 9 to 10 4.4 BD1075 3/2/99 1669 Grid C-15; clay 10 to 11 3.7 BD1076 3/2/99 1669 Grid C-15; clay 11 to 12 <1.0 Bedrock @ 12 ft

B-13 BD1077 3/2/99 1669 Grid B-13; clay 2 to 3 1.1 BD1078 3/2/99 1669 Grid B-13; clay 3 to 4 520 BD1079 3/2/99 1669 Grid B-13; fill 4 to 5 1020 BD1080 3/2/99 1669 Grid B-13; fill 5 to 6 760 BD1081 3/2/99 1669 Dupl. of BD1080 5 to 6 860 BD1082 3/2/99 1669 Grid B-13; fill/clay 7 to 8 7.9 BD1083 3/2/99 1670 Grid B-13; clay 8 to 9 2.6 BD1084 3/2/99 1670 Grid B-13; clay 9 to 10 1.9 BD1085 3/2/99 1670 Grid B-13; clay 10 to 11 8.7 BD1086 3/2/99 1670 Grid B-13; clay 11 to 12 2.2 Bedrock @ 12.5 ft

D-13 BD1087 3/2/99 1670 Grid D-13; clay Ito2 <1.0 BD1088 3/2/99 1670 Grid D-13; clay 2 to 3 155 BD1089 3/2/99 1670 Grid D-13; fill 3 to 4 2900 Bedrock @ 4.5 ft

D-12 BD1090 3/2/99 1670 Grid D-12; clay Ito2 <1.0 BD1091 3/2/99 1670 Dupl. of BD1090 Ito2 <1.0 BD1092 3/2/99 1670 Grid D-12; clay 2 to 3 3.1 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

BD1093 3/2/99 1670 Grid D-12; fill 3 to 4 10 BD1094 3/2/99 1670 Grid D-12; fill 4 to 5 <1.0 BD1095 3/2/99 1670 Grid D-12; clay 5 to 6 <1.0 BD1096 3/2/99 1670 Grid D-12; clay 6 to 7 <1.0 BD1097 3/2/99 1670 Grid D-12; clay 7 to 8 <1.0 BD1098 3/2/99 1671 Equipment rinseate NA 4.8ug/L BD1099 3/3/99 1666 Grid D-12; clay 8 to 9 <1.0 BD1100 3/3/99 1666 Grid D-12; clay 9 to 10 <1.0 BD1101 3/3/99 1666 Dupl. ofBDHOO 9 to 10 <1.0 BD1102 3/3/99 1666 Grid D-12; clay 10 to 11 <1.0 Bedrock ©lift

D-14 BD1103 3/3/99 1666 Grid D-14; cap 0 to 0.4 2.7 BD1104 3/3/99 1666 Grid D-14; clay 0.4 to 2 <1.0 BD1105 3/3/99 1666 Grid D-14; clay 2 to 3 1.4 BD1106 3/3/99 1666 Grid D-14; clay 3 to 4 <1.0 BD1107 3/3/99 1666 Grid D-14; clay/fill 4 to 5 220 BD1108 3/3/99 1666 Grid D-14; fill 5 to 6 200 BD1109 3/3/99 1666 Grid D-14; clay 7 to 8 <1.0 Bedrock @ 9 ft

D-15 BD1110 3/3/99 1666 Grid D-15; cap/clay Ito2 2.0 BD1111 3/3/99 1666 Grid D-15; clay 2 to 3 1.1 BD1112 3/3/99 1666 Dupl. ofBDllll 2 to 3 1.7 BD1113 3/3/99 1666 Grid D-15; clay 3 to 4 1.2 Bedrock @ 4 ft

D-16 BD1114 3/3/99 1672 Grid D-16; clay Otol <1.0 BD1115 3/3/99 1672 Grid D-16; clay Ito2 <1.0 Bedrock® 1.5 ft

D-ll BD1116 3/3/99 1672 Grid D-ll; cap/clay Otol <1.0 BD1117 3/3/99 1672 Grid D-ll; clay Ito2 <1.0 BD1118 3/3/99 1672 Grid D-ll; clay 2 to 3 <1.0 BD1119 3/3/99 1672 Grid D-ll; clay/fill 3 to 4 9.9 BD1120 3/3/99 1672 Grid D-ll; fill 4 to 5 cl.O BD1121 3/3/99 1672 Dupl. of BD1 120 4 to 5 <1.0 BD1122 3/3/99 1672 Grid D-ll; fill 5 to 6 <1.0 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm BD1123 3/3/99 1672 Grid D-ll; fill 6 to 7 <1.0 BD1124 3/3/99 1672 Grid D-ll; fill 7 to 8 <1.0 BD1125 3/3/99 1672 Grid D-ll; fill 9 to 10 <1.0 BD1126 3/3/99 1672 Grid D-ll; fill 10 to 11 <1.0 BD1127 3/3/99 1672 Grid D-ll; fill 11 to 12 <1.0 Bedrock® 117"

D-10 BD1128 3/3/99 1672 Grid D-10; cap/clay Otol <1.0 BD1129 3/3/99 1674 Grid D-10; clay Ito2 <1.0 BD1130 3/3/99 1674 Grid D-10; clay 2 to 3 890 BD1131 3/3/99 1674 Dupl. ofBDUSO 2 to 3 5200 BD1132 3/3/99 1674 Grid D-10; clay 3 to 4 4.3 BD1133 3/3/99 1674 Grid D-10; clay 4 to 5 <1.0 BD1134 3/3/99 1674 Grid D-10; clay 5 to 6 2.1 BD1135 3/3/99 1674 Grid D-10; clay 6 to 7 <1.0 BD1136 3/3/99 1674 Grid D-10; clay 7 to 8 <1.0 Bedrock @ 9'3"

D-9 BD1137 3/3/99 1674 Grid D-9; clay Otol <1.0 BD1138 3/3/99 1674 Grid D-9; clay Ito2 <1.0 BD1139 3/3/99 1674 Grid D-9; clay 2 to 3 140 BD1140 3/3/99 1674 Grid D-9; clay 3 to 4 8.5 BD1141 3/3/99 1674 Dupl. ofBDIHO 3 to 4 2.2 BD1142 3/3/99 1674 Grid D-9; clay 4 to 5 <1.0 BD1143 3/3/99 1674 Grid D-9; clay 6 to 7 <1.0 BD1144 3/3/99 1673 Grid D-9; clay 7 to 8 <1.0 BD1145 3/3/99 1673 Grid D-9; clay 8 to 9 <1.0 Bedrock @ 9'2"

B-16 BD1146 3/3/99 1673 Grid B-16; cap Otol <1.0 BD1147 3/3/99 1673 Grid B-16; clay Ito2 3.8 BD1149 3/3/99 1673 Grid B-16; fill 2 to 3 62 BD1150 3/3/99 1673 Grid B-16; fill 3 to 4 160 BD1151 3/3/99 1673 Grid B-16; fill 4 to 5 170 BD1152 3/3/99 1673 Dupl. ofBDHSl 4 to 5 150 BD1153 3/3/99 1673 Grid B-16; clay 5 to 6 27 BD1154 3/3/99 1673 Grid B-16; clay 6 to 7 9.4 BD1155 3/3/99 1673 Grid B-16; clay 7 to 8 6.7 BD1156 3/3/99 1673 Grid B-16; clay 8 to 9 6.1 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm Bedrock @ 8'5"

B-15 BD1157 3/3/99 1673 Grid B-15; cap Otol <1.0 BD1158 3/3/99 1673 Grid B-15; clay Ito2 <1.0 BD1159 3/3/99 1673 Grid B-15; clay 2 to 3 1.3 BD1160 3/3/99 1675 Grid B-15; clay 3 to 4 120 BD1161 3/3/99 1675 Dupl. ofBD1160 3 to 4 150 BD1162 3/3/99 1675 Grid B-15; fill 4 to 5 170 BD1163 3/3/99 1675 Grid B-15; clay 5 to 6 13 BD1164 3/3/99 1675 Grid B-15; clay 6 to 7 4.4 BD1165 3/3/99 1675 Grid B-15; clay 7 to 8 8.7 BD1166 3/3/99 1675 Grid B-15; clay 8 to 9 13 BD1167 3/3/99 1675 Grid B-15; clay 9 to 10 4.9 Bedrock @ lO'lO" BD1168 3/3/99 1675 Equipment rinseate NA 4.7ug/L

B-14 BD1169 3/4/99 1676 Grid B-14; cap Otol <1.0 BD1170 3/4/99 1676 Grid B-14; cap /clay Ito2 <1.0 BD1171 3/4/99 1676 Dupl. ofBD1170 Ito2 1.3 BD1172 3/4/99 1676 Grid B-14; clay/fill 2 to 3 250 BD1173 3/4/99 1676 Grid B-14; fill 3 to 4 90 BD1174 3/4/99 1676 Grid B-14; fill 4 to 5 93 BD1175 3/4/99 1676 Grid B-14; fill 5 to 6 820 BD1176 3/4/99 1676 Grid B-14; clay 7 to 8 300 BD1177 3/4/99 1676 Grid B-14; clay 10 to 11 10 Bedrock @11'10"

C-16 BD1179 3/4/99 1676 Grid C-16; cap /clay Otol <1.0 . BD1180 3/4/99 1676 Grid C-16; clay Ito2 <1.0 BD1181 3/4/99 1676 Dupl. of BD1 180 Ito2 <1.0 BD1182 3/4/99 1676 Grid C-16; clay/fill 2 to 3 15 BD1183 3/4/99 1676 Grid C-16; fill 3 to 4 360 BD1184 3/4/99 1677 Grid C-16; fill 4 to 5 12 BD1185 3/4/99 1677 Grid C-16; fill 5 to 6 1450 BD1186 3/4/99 1677 Grid C-16; fill/clay 6 to 7 2780 BD1187 3/4/99 1677 Grid C-16; clay 7 to 8 51 BD1188 3/4/99 1677 Grid C-16; clay 8 to 9 8.4 BD1189 3/4/99 1677 Grid C-16; clay 9 to 10 1.9 BD1190 3/4/99 1677 Grid C-16; clay 10 to 11 2.4 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

BD1191 3/4/99 1677 Dupl. ofBD1190 10 to 11 3.3 Bedrock ©10' 10"

E-ll BD1192 3/4/99 1677 Grid E-ll; clay Otol <1.0 BD1193 3/4/99 1677 Grid E-ll; clay Ito2 2.5 BD1194 3/4/99 1677 Grid E-ll; clay 2 to 3 <1.0 BD1195 3/4/99 1677 Grid E-ll; clay 3 to 4 <1.0 BD1196 3/4/99 1677 Grid E-ll; clay 4 to 5 <1.0 Bedrock @ 4'3"

E-10 BD1197 3/4/99 1677 Grid E-10; clay Otol <1.0 BD1198 3/4/99 1677 Grid E-10; clay Ito2 <1.0 BD1199 3/4/99 1678 Grid E-10; clay 2 to 3 2.8 BD1200 3/4/99 1678 Grid E-10; clay 3 to 4 <1.0 BD1201 3/4/99 1678 Dupl. of BD1200 3to4 <1.0 BD1202 3/4/99 1678 Grid E-10; clay 4 to 5 <1.0 Bedrock @ 5'2"

E-9 BD1203 3/4/99 1678 Grid E-9; clay Otol <1.0 BD1204 3/4/99 1678 Grid E-9; clay Ito2 <1.0 BD1205 3/4/99 1678 Grid E-9; clay 2 to 3 <1.0 BD1206 3/4/99 1678 Grid E-9; clay 3 to 4 <1.0 BD1207 3/4/99 1678 Grid E-9; clay 4 to 5 <1.0 BD1208 3/4/99 1678 Grid E-9; clay 5 to 6 <1.0 BD1209 3/4/99 1678 Grid E-9; clay 6 to 7 <1.0 BD1210 3/4/99 1678 Grid E-9; clay 7 to 8 <1.0 BD1211 3/4/99 1678 Dupl. of BD1210 7 to 8 <1.0 Bedrock® 7' 10"

E-7 BD1212 3/4/99 1678 Grid E-7; clay Otol 4.8 BD1213 3/4/99 1678 Grid E-7; clay Ito2 <1.0 BD1214 3/4/99 1679 Grid E-7; clay 2 to 3 <1.0 BD1215 3/4/99 1679 Grid E-7; clay 3 to 4 <1.0 BD1216 3/4/99 1679 Grid E-7; clay 4 to 5 <1.0 BD1217 3/4/99 1679 Grid E-7; clay 5 to 6 <1.0 Bedrock @ 57"

F-7 BD1218 3/4/99 1679 Grid F-7; clay Otol 12 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

BD1219 3/4/99 1679 Grid F-7; clay 1 to 2 2.3 BD1220 3/4/99 1679 Grid F-7; clay 2 to 3 <1.0 BD1221 3/4/99 1679 Dupl. of BD1220 2 to 3 <1.0 BD1222 3/4/99 1679 Grid F-7; clay 3 to 4 <1.0 BD1223 3/4/99 1679 Grid F-7; clay 4 to 5 <1.0 BD1224 3/4/99 1679 Grid F-7; clay 5 to 6 <1.0 BD1225 3/4/99 1679 Grid F-7; clay 6 to 7 <1.0 BD1226 3/4/99 1679 Grid F-7; clay 7 to 8 2.4 BD1227 3/4/99 1679 Grid F-7; clay 8 to 9 <1.0 BD1228 3/4/99 1679 Grid F-7; clay 9 to 10 <1.0 BD1229 3/4/99 1680 Grid F-7; clay 10 to 11 <1.0 BD1230 3/4/99 1680 Grid F-7; clay 11 to 12 <1.0 BD1231 3/4/99 1680 Dupl. of BD1230 11 to 12 <1.0 BD1232 3/4/99 1680 Grid F-7; clay 12 to 13 <1.0 BD1233 3/4/99 1680 Grid F-7; clay 13 to 14 <1.0 BD1234 3/4/99 1680 Grid F-7; clay 14 to 15 <1.0 BD1235 3/4/99 1680 Grid F-7; clay 15 to 16 <1.0 Bedrock @ 16 ft

G-7 BD1236 3/4/99 1680 Grid G-7; clay Otol 340 BD1237 3/4/99 1680 Grid G-7; clay Ito2 18 BD1238 3/4/99 1680 Grid G-7; clay 2 to 3 2.5 BD1239 3/4/99 1680 Grid G-7; clay 4 to 5 6.1 BD1240 3/4/99 1680 Grid G-7; clay 5 to 6 <1.0 BD1241 3/4/99 1680 Dupl. of BD1240 5 to 6 <1.0 BD1242 3/4/99 1680 Grid G-7; clay 6 to 7 <1.0 BD1243 3/4/99 1680 Grid G-7; clay 7 to 8 <1.0 BD1244 3/4/99 1681 Grid G-7; clay 8 to 9 <1.0 BD1245 3/4/99 1681 Grid G-7; clay 9 to 10 <1.0 BD1246 3/4/99 1681 Grid G-7; clay 10 to 11 <1.0 BD1247 3/4/99 1681 Grid G-7; clay 11 to 12 <1.0 BD1248 3/4/99 1681 Grid G-7; clay 12 to 13 <1.0 BD1249 3/4/99 1681 Grid G-7; clay 13 to 14 <1.0 Bedrock @ 1310"

D-7 BD1250 3/4/99 1681 Grid D-7; cap /clay Otol 6.9 BD1251 3/4/99 1681 Dupl. of BD1250 Otol 24 BD1252 3/4/99 1681 Grid D-7; clay Ito2 <1.0 BD1253 3/4/99 1681 Grid D-7; clay 2 to 3 1.5 BD1254 3/4/99 1681 Grid D-7; clay 3 to 4 <1.0 BD1255 3/4/99 1681 Grid D-7; clay/fill 4 to 5 <1.0 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

BD1256 3/4/99 1681 Grid D-7; clay 5 to 6 <1.0 BD1257 3/4/99 1681 Grid D-7; clay 6 to 7 <1.0 BD1258 3/4/99 1681 Grid D-7; clay 7 to 8 <1.0 BD1259 3/4/99 1682 Grid D-7; clay 8 to 9 <1.0 BD1260 3/4/99 1682 Grid D-7; clay 9 to 10 <1.0 BD1261 3/4/99 1682 Dupl. of BD1260 9 to 10 <1.0 BD1262 3/4/99 1682 Grid D-7; clay 10 to 11 <1.0 Bedrock @ 127"

D-8 BD1263 3/4/99 1682 Grid D-8; clay Otol <1.0 BD1264 3/4/99 1682 Grid D-8; clay Ito2 3.6 BD1265 3/4/99 1682 Grid D-8; clay 3 to 4 <1.0 BD1266 3/4/99 1682 Grid D-8; clay 4 to 5 <1.0 BD1267 3/4/99 1682 Grid D-8; clay 5 to 6 <1.0 BD1268 3/4/99 1682 Grid D-8; clay 6 to 7 <1.0 BD1269 3/4/99 1682 Grid D-8; clay 7 to 8 <1.0 BD1270 3/4/99 1682 Grid D-8; day 8 to 9 <1.0 BD1271 3/4/99 1682 Dupl. of BD1270 8 to 9 <1.0 BD1272 3/4/99 1682 Grid D-8; clay 9 to 10 <1.0 Bedrock @ 10 ft

BD1273 3/4/99 1682 Equipment rinseate NA 1.6ug/L

B-2 BD1274 3/5/99 1507 Grid B-2; cap /clay Otol <1.0 BD1275 3/5/99 1507 Grid B-2; clay Ito2 <1.0 BD1276 3/5/99 1507 Grid B-2; fill 3 to 4 <1.0 BD1277 3/5/99 1507 Grid B-2; clay 4 to 5 <1.0 BD1278 3/5/99 1507 Grid B-2; clay 5 to 6 <1.0 Bedrock @ 5'2"

B-3 BD1279 3/5/99 1507 Grid B-3; cap /clay Otol <1.0 BD1280 3/5/99 1507 Grid B-3; clay Ito2 1.4 BD1281 3/5/99 1507 Dupl. of BD1280 Ito2 5.8 BD1282 3/5/99 1507 Grid B-3; clay/fill 3 to 4 <1.0 BD1283 3/5/99 1507 Grid B-3; clay 4 to 4'8" <1.0 BD1284 3/5/99 1507 Grid B-3; clay 4'8" to 6 <1.0 BD1285 3/5/99 1507 Grid B-3; clay 6 to 7 <1.0 BD1286 3/5/99 1507 Grid B-3; clay 7 to 8 <1.0 Bedrock @ 7'10" Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm B-4 BD1287 3/5/99 1507 Grid B-4; cap /clay Otol <1.0 BD1288 3/5/99 1507 Grid B-4; fill 3 to 4 <1.0 BD1289 3/5/99 1508 Grid B-4; clay 4 to 5 1.2 BD1290 3/5/99 1508 Grid B-4; clay 5 to 6 1.4 BD1291 3/5/99 1508 Dupl. ofBD1290 5 to 6 1.1 BD1292 3/5/99 1508 Grid B-4; clay 7 to 8 7.0 Bedrock @ 8 f t

B-5 BD1293 3/5/99 1508 Grid B-5; cap /clay Otol <1.0 BD1294 3/5/99 1508 Grid B-5; clay Ito2 <1.0 BD1295 3/5/99 1508 Grid B-5; clay 2 to 3 4.4 BD1296 3/5/99 1508 Grid B-5; clay 3 to 4 <1.0 BD1297 3/5/99 1508 Grid B-5; clay 4 to 5 2.5 BD1298 3/5/99 1508 Grid B-5; clay 5 to 6 3.6 BD1299 3/5/99 1508 Grid B-5; clay 6 to 7 3.3 BD1300 3/5/99 1508 Grid B-5; clay 7 to 8 3.9 BD1301 3/5/99 1508 Dupl. of BD1300 7 to 8 4.1 Bedrock @ 710"

B-6 BD1302 3/5/99 1508 Grid B-6; cap /clay Otol <1.0 BD1303 3/5/99 1508 Grid B-6; clay Ito2 <1.0 BD1304 3/5/99 1509 Grid B-6; clay 2 to 3 <1.0 BD1305 3/5/99 1509 Grid B-6; clay 3 to 4 <1.0 BD1306 3/5/99 1509 Grid B-6; clay 4 to 5 <1.0 BD1307 3/5/99 1509 Grid B-6; clay 5 to 6 <1.0 BD1308 3/5/99 1509 Grid B-6; clay 6 to 7 1.7 BD1309 3/5/99 1509 Grid B-6; clay 7 to 8 3.1 Bedrock @ 8 ft

B-7 BD1310 3/5/99 1509 Grid B-7; cap /clay Otol <1.0 BD1311 3/5/99 1509 Dupl. of BD1310 Otol <1.0 BD1312 3/5/99 1509 Grid B-7; clay Ito2 <1.0 BD1313 3/5/99 1509 Grid B-7; clay 2 to 3 <1.0 BD1314 3/5/99 1509 Grid B-7; clay 3 to 4 8.6 BD1315 3/5/99 1509 Grid B-7; clay 4 to 5 11 BD1316 3/5/99 1509 Grid B-7; clay 5 to 6 9.6 BD1317 3/5/99 1509 Grid B-7; clay 6 to 7 11 BD1318 3/5/99 1509 Grid B-7; clay 7 to 8 1.6

10 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm BD1319 3/5/99 1510 Grid B-7; clay 8 to 9 5.4 Bedrock @ 9'3"

C-18 BD1321 3/5/99 1510 Grid C-18; fill Otol 39 BD1322 3/5/99 1510 Dupl. of BD1321 Otol 41 BD1323 3/5/99 1510 Grid C-18; fill Ito2 3.9 BD1324 3/5/99 1510 Grid C-18; fill 2 to 3 1.9 BD1325 3/5/99 1510 Grid C-18; fill 3 to 4 <1.0 BD1326 3/5/99 1510 Grid C-18; fill 4 to 4'9" <1.0 Bedrock @ 5 ft

C-17 BD1327 3/5/99 1510 Grid C-17; fill Otol 6.6 BD1328 3/5/99 1510 Grid C-17; fill Ito2 1.4 BD1329 3/5/99 1510 Grid C-17; fill/clay 5 to 6 <1.0 Bedrock @ 6 ft

D-17 BD1330 3/5/99 1510 Grid D-17; clay Otol <1.0 BD1331 3/5/99 1510 Dupl. ofBD1330 Otol <1.0 BD1332 3/5/99 1510 Grid D-17; clay Ito2 <1.0 BD1333 3/5/99 1510 Grid D-17; weath. rock 2 to 3 Bedrock® 211" BD1334 3/5/99 1510 Equipment rinseate NA 6.6 ug/L

B-17 BD1335 3/8/99 1515 Grid B-17; fill Oto2 9.9 BD1336 3/8/99 1515 Grid B-17; fill 3 to 4 140 BD1337 3/8/99 1515 Grid B-17; fill 4 to 5 19 BD1338 3/8/99 1515 Grid B-17; fill/rock 6 to 7 4.2 Bedrock @ 6'2"

B-l BD1339 3/8/99 1515 Grid B-l; road fill Otol <1.0 BD1340 3/8/99 1515 Grid B-l; weath. rock Ito2 <1.0 Bedrock @ 8"

C-l BD1341 3/8/99 1515 Grid C-l; road fill Otol <1.0 Bedrock @ 6"

11 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm D-l BD1342 3/8/99 1515 Grid D-l; road fill Otol <1.0 Bedrock @ 11"

E-l BD1343 3/8/99 1515 Grid E-l; clay Otol 1.3 BD1344 3/8/99 1515 Grid E-l; fill Ito2 <1.0 BD1345 3/8/99 1515 Grid E-l; fill 2 to 3 <1.0 BD1346 3/8/99 1515 Grid E-l; clay 3 to 4 <1.0 BD1347 3/8/99 1515 Grid E-l; clay 4 to 5 <1.0 BD1348 3/8/99 1515 Grid E-l; clay 5 to 6 <1.0 BD1349 3/8/99 1516 Grid E-l; clay 6 to 7 <1.0 BD1350 3/8/99 1516 Grid E-l; clay 7 to 8 <1.0 BD1351 3/8/99 1516 Dupl. of BD1350 7 to 8 <1.0 BD1352 3/8/99 1516 Grid E-l; clay 8 to 9 <1.0 BD1353 3/8/99 1516 Grid E-l; weath. Rock 9 to 10 <1.0 Bedrock @ 9'10"

F-2 BD1354 3/8/99 1516 Grid F-2; fill/clay Oto2 <1.0 BD1355 3/8/99 1516 Grid F-2; clay/rock 2 to 3 <1.0 Bedrock @ 2'10"

G-3 BD1356 3/8/99 1516 Grid G-3; road fill Otol <1.0 BD1357 3/8/99 1516 Grid G-3; clay 2 to 3 <1.0 BD1358 3/8/99 1516 Grid G-3; clay 3 to 4 <1.0 BD1359 3/8/99 1516 Grid G-3; clay 5 to 6 <1.0 TD @ 6 f t

C-2 BD1360 3/8/99 1516 Grid C-2; cap 0 to 0.5 <1.0 BD1361 3/8/99 1516 Dupl. of BD1360 0 to 0.5 <1.0 BD1362 3/8/99 1516 Grid C-2; clay 0.5 to 1 <1.0 BD1363 3/8/99 1516 Grid C-2; clay Ito2 <1.0 BD1364 3/8/99 1517 Grid C-2; clay 2 to 3 12 Bedrock® 211"

D-2 BD1365 3/8/99 1517 Grid D-2; cap Otol 2.6 BD1366 3/8/99 1517 Grid D-2; clay Ito2 <1.0 BD1367 3/8/99 1517 Grid D-2; fill 2 to 3 720 BD1368 3/8/99 1517 Grid D-2; fill 3 to 4 22

12 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm Bedrock @ 4'8"

E-2 BD1369 3/8/99 1517 Grid E-2; cap/clay Otol 16 BD1370 3/8/99 1517 Grid E-2; clay Ito2 22 BD1371 3/8/99 1517 Dupl. ofBD1370 Ito2 66 BD1372 3/8/99 1517 Grid E-2; fill 2 to 3 1.8 BD1373 3/8/99 1517 Grid E-2; clay 3 to 4 <1.0 BD1374 3/8/99 1517 Grid E-2; clay 4 to 5 <1.0 BD1375 3/8/99 1517 Grid E-2; clay 5 to 6 <1.0 BD1376 3/8/99 1517 Grid E-2; clay 6 to 7 <1.0 BD1377 3/8/99 1517 Grid E-2; clay 7 to 8 <1.0 BD1378 3/8/99 1517 Grid E-2; clay 8 to 9 <1.0 BD1379 3/8/99 1518 Grid E-2; clay 9 to 10 <1.0 Bedrock @9'11"

F-3 BD1380 3/8/99 1518 Grid F-3; clay Otol 1.6 BD1381 3/8/99 1518 Grid F-3; clay Ito2 <1.0 BD1382 3/8/99 1518 Dupl. of BD1381 Ito2 <1.0 BD1383 3/8/99 1518 Grid F-3; clay 2 to 3 <1.0 BD1384 3/8/99 1518 Grid F-3; clay 3 to 4 <1.0 BD1385 3/8/99 1518 Grid F-3; clay/rock 4 to 5 <1.0 Bedrock @ 4'8" BD1386 3/8/99 1518 Equipment rinseate NA 0.25 ug/L

B-8 BD1387 3/10/99 1683 Grid B-8; cap Otol <1.0 BD1388 3/10/99 1683 Grid B-8; clay Ito2 <1.0 BD1389 3/10/99 1683 Grid B-8; clay 2 to 3 <1.0 BD1390 3/10/99 1683 Grid B-8; clay 3 to 4 <1.0 BD1391 3/10/99 1683 Dupl. of BD1390 3 to 4 <1.0 BD1392 3/10/99 1683 Grid B-8; clay 4 to 5 <1.0 BD1393 3/10/99 1683 Grid B-8; clayey silt 5 to 6 17 BD1394 3/10/99 1683 Grid B-8; clayey silt 6 to 7 3.0 BD1395 3/10/99 1683 Grid B-8; silt 7 to 8 3.3 BD1396 3/10/99 1683 Grid B-8; clay 8 to 9 2.7 BD1397 3/10/99 1683 Grid B-8; clayey gravel 9 to 10 <1.0 Bedrock @ 10'6"

B-9 BD1398 3/10/99 1683 Grid B-9; cap Otol <1.0 BD1399 3/10/99 1683 Grid B-9; clay 1 to 2 <1.0

13 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

BD1400 3/10/99 1683 Grid B-9; clay 2 to 3 7.3 BD1401 3/10/99 1683 Dupl. of BD1400 2 to 3 2.9 BD1402 3/10/99 1684 Grid B-9; clay/fill 3 to 4 240 BD1403 3/10/99 1684 Grid B-9; fill 4 to 5 1500 BD1404 3/10/99 1684 Grid B-9; fill 5 to 6 540 BD1405 3/10/99 1684 Grid B-9; fill 6 to 7 8.6 BD1406 3/10/99 1684 Grid B-9; fill/clay 8 to 9 5.4 BD1407 3/10/99 1684 Grid B-9; sand /clay 9 to 10 36 BD1408 3/10/99 1684 Grid B-9; sandy clay 10 to 11 20 BD1409 3/10/99 1684 Grid B-9; sandy clay 11 to 12 5.1

B-10 BD1410 3/10/99 1684 Grid B-10; cap Otol <1.0 BD1411 3/10/99 1684 Grid B-10; cap Ito2 <1.0 BD1412 3/10/99 1684 Dupl. ofBDMll Ito2 <1.0 BD1413 3/10/99 1684 Grid B-10; clay 2 to 3 <1.0 BD1414 3/10/99 1684 Grid B-10; clay 3 to 4 78 BD1415 3/10/99 1684 Grid B-10; fill 4 to 5 37 BD1416 3/10/99 1684 Grid B-10; fill 5 to 6 31 BD1417 3/10/99 1685 Grid B-10; fill 7 to 8 9.5 BD1418 3/10/99 1685 Grid B-10; sandy silt 9 to 10 <1.0 BD1419 3/10/99 1685 Grid B-10; silt/clay 10 to 11 <1.0 BD1420 3/10/99 1685 Grid B-10; clay 11 to 12 <1.0 BD1421 3/10/99 1685 Dupl. of BD1420 11 to 12 <1.0 BD1422 3/10/99 1685 Grid B-10; weath. rock 12 to 13 <1.0 Bedrock @ 12'6"

B-ll BD1423 3/10/99 1685 Grid B-ll; cap Otol <1.0 BD1424 3/10/99 1685 Grid B-ll; clay Ito2 <1.0 BD1425 3/10/99 1685 Grid B-ll; fill 2 to 3 5.2 BD1426 3/10/99 1685 Grid B-ll; fill 3 to 4 1.7 BD1427 3/10/99 1685 Grid B-ll; fill 4 to 5 6.5 BD1428 3/10/99 1685 Grid B-ll; fill 5 to 6 16 Bdl429 3/10/99 1685 Grid B-ll; fill/silt 6 to 7 3.6 BD1430 3/10/99 1685 Grid B-ll; clayey silt 7 to 8 <1.0 BD1431 3/10/99 1685 Dupl. of BD1430 7 to 8 <1.0 BD1432 3/10/99 1686 Grid B-ll; silt 8 to 9 <1.0 BD1433 3/10/99 1686 Grid B-ll; silt 9 to 10 <1.0 Bdl434 3/10/99 1686 Grid B-ll; clayey silt 10 to 11 <1.0 BD1435 3/10/99 1686 Grid B-ll; sand /rock 11 to 12 <1.0

14 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

Bedrock @ 11 '8"

B-12 BD1436 3/10/99 1686 Grid B-12; cap Otol <1.0 BD1437 3/10/99 1686 Grid B-12; clay Ito2 <1.0 BD1438 3/10/99 1686 Grid B-12; clay 2 to 3 34 BD1439 3/10/99 1686 Grid B-12; fill 3 to 4 92 BD1440 3/10/99 1686 Grid B-12; fill 4 to 5 85 BD1441 3/10/99 1686 Dupl.ofBD1440 4 to 5 190 BD1442 3/10/99 1686 Grid B-12; fill 5 to 6 1100 BD1443 3/10/99 1686 Grid B-12; fill 9 to 10 700 BD1444 3/10/99 1686 Grid B-12; clay gravel 10 to 11 100 BD1445 3/10/99 1686 Grid B-12; sand /gravel 11 to 12 8.0 BD1446 3/10/99 1686 Grid B-12; weath. rock 12 to 13 3.5 Bedrock @ 12'10"

C-ll BD1447 3/10/99 1687 Grid C-ll; cap/clay Otol <1.0 BD1448 3/10/99 1687 Grid C-ll; clay Ito2 1.6 BD1449 3/10/99 1687 Grid C-ll; clay/fill 2 to 3 180 BD1450 3/10/99 1687 Grid C-ll; fill 3 to 4 1300 BD1451 3/10/99 1687 Dupl. of BD1450 3 to 4 790 BD1452 3/10/99 1687 Grid C-ll; fill 4 to 5 8500 BD1453 3/10/99 1687 Grid C-ll; fill 5 to 6 1400 BD1454 3/10/99 1687 Grid C-ll; fill 6 to 7 1800 BD1455 3/10/99 1687 Grid C-ll; fill 7 to 8 2300 BD1456 3/10/99 1687 Grid C-ll; silt 8 to 9 8.4 BD1457 3/10/99 1687 Grid C-ll; silt 9 to 10 360 BD1458 3/10/99 1687 Grid C-ll; fill 10 to 11 220 BD1459 3/10/99 1687 Grid C-ll; sand/gravel 11 to 12 3100 BD1460 3/10/99 1687 Grid C-ll; weath. rock 12 to 13 360 Bedrock @ 1210"

C-10 BD1461 3/10/99 1687 Grid C-10; cap Otol 1.5 BD1462 3/10/99 1688 Dupl. of BD1461 Otol 4.7 BD1463 3/10/99 1688 Grid C-10; clay Ito2 16 BD1464 3/10/99 1688 Grid C-10; clay 2 to 3 32 BD1465 3/10/99 1688 Grid C-10; clay 3 to 4 4.6 BD1466 3/10/99 1688 Grid C-10; clay 4 to 5 2.7 BD1467 3/10/99 1688 Grid C-10; clay 5 to 6 4.6

15 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

BD1468 3/10/99 1688 Grid C-10; clay 6 to 7 2.1 BD1469 3/10/99 1688 Grid C-10; clay 7 to 8 <1.0 BD1470 3/10/99 1688 Grid C-10; clay/silt 9 to 10 <1.0 BD1471 3/10/99 1688 Dupl. of BD1470 9 to 10 <1.0 BD1472 3/10/99 1688 Grid C-10; clayey silt 10 to 11 1.5 BD1473 3/10/99 1688 Grid C-10; clayey sand 11 to 12 1.7 BD1474 3/10/99 1688 Grid C-10; sand /gravel 12 to 13 <1.0 Bedrock @ 13'4"

C-9 BD1475 3/10/99 1688 Grid C-9; cap Otol <1.0 BD1476 3/10/99 1688 Grid C-9; clay Ito2 <1.0 BD1477 3/10/99 1689 Grid C-9; clay 2 to 3 23 BD1478 3/10/99 1689 Grid C-9; clay 3 to 4 1.7 BD1479 3/10/99 1689 Grid C-9; clay 5 to 6 <1.0 BD1480 3/10/99 1689 Grid C-9; clayey silt 6 to 7 <1.0 BD1481 3/10/99 1689 Dupl. of BD1480 6 to 7 <1.0 BD1482 3/10/99 1689 Grid C-9; clayey silt 7 to 8 <1.0 BD1484 3/10/99 1689 Grid C-9; clayey silt 8 to 9 <1.0 BD1483 3/10/99 1689 Grid C-9; silt 9 to 10 <1.0 BD1485 3/10/99 1689 Grid C-9; silt 10 to 11 <1.0 BD1486 3/10/99 1689 Grid C-9; clayey silt 11 to 12 <1.0 BD1487 3/10/99 1689 Grid C-9; weath. rock 13 to 14 <1.0 Bedrock @ 15 ft BD1488 3/10/99 1689 Equipment rinseate NA 5.1

C-8 BD1489 3/11/99 1690 Grid C-8; cap /clay Otol <1.0 BD1490 3/11/99 1690 Grid C-8; clay/fill Ito2 6.0 BD1491 3/11/99 1690 Dupl. of BD1490 Ito2 1.2 BD1492 3/11/99 1690 Grid C-8; clay 2 to 3 <1.0 BD1493 3/11/99 1690 Grid C-8; clay 4 to 5 <1.0 BD1494 3/11/99 1690 Grid C-8; clay 5 to 6 <1.0 BD1495 3/11/99 1690 Grid C-8; clay 6 to 7 <1.0 BD1496 3/11/99 1690 Grid C-8; clay 7 to 8 <1.0 BD1497 3/11/99 1690 Grid C-8; clay 8 to 9 <1.0 BD1498 3/11/99 1690 Grid C-8; clay/silt 9 to 10 <1.0 BD1499 3/11/99 1690 Grid C-8; silt/sand 10 to 11 <1.0 BD1500 3/11/99 1690 Grid C-8; sand /gravel 11 to 12 <1.0 BD1501 3/11/99 1690 Grid C-8; sand/gravel 12 to 13 <1.0 BD1502 3/11/99 1690 Grid C-8; sand /gravel 13 to 14 <1.0 BD1503 3/11/99 1690 Dupl. of BD1502 13 to 14 <1.0 Bedrock @ 14'8"

16 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

C-7 BD1504 3/11/99 1691 Grid C-7; cap /clay Otol <1.0 BD1505 3/11/99 1691 Grid C-7; clay Ito2 <1.0 BD1506 3/11/99 1691 Grid C-7; fill 2 to 3 9.2 BD1507 3/11/99 1691 Grid C-7; silt/clay 3 to 4 <1.0 BD1508 3/11/99 1691 Grid C-7; clay/silt 4 to 5 <1.0 BD1509 3/11/99 1691 Grid C-7; silt 5 to 6 2.9 BD1510 3/11/99 1691 Grid C-7; silry clay 6 to 7 1.5 BD1511 3/11/99 1691 Dupl. of BD1510 6 to 7 3.4 BD1512 3/11/99 1691 Grid C-7; silty clay 7 to 8 <1.0 BD1513 3/11/99 1691 Grid C-7; silt 8 to 9 <1.0 BD1514 3/11/99 1691 Grid C-7; silt 9 to 10 <1.0 BD1515 3/11/99 1691 Grid C-7; sand /gravel 10 to 11 4.5 BD1516 3/11/99 1691 Grid C-7; sand/gravel 11 to 12 3.3 Bedrock @ 12'9"

C-6 BD1517 3/11/99 1691 Grid C-6; cap /clay Otol <1.0 BD1518 3/11/99 1691 Grid C-6; clay Ito2 <1.0 BD1519 3/11/99 1692 Grid C-6; clay/fill 2 to 3 7500 BD1520 3/11/99 1692 Dupl. ofBD1519 2 to 3 2700 BD1521 3/11/99 1692 Grid C-6; sand /gravel 3 to 4 240 BD1522 3/11/99 1692 Grid C-6; sand /gravel 4 to 5 230 BD1523 3/11/99 1692 Grid C-6; sand/gravel 5 to 6 94 BD1524 3/11/99 1692 Grid C-6; sand /gravel 6 to 7 1200 BD1525 3/11/99 1692 Grid C-6; sand/rock 10 to 11 130 Bedrock @ 10'8"

C-5 BD1526 3/11/99 1692 Grid C-5; cap Otol 8.2 BD1527 3/11/99 1692 Grid C-5; cap /clay Ito2 8.6 BD1528 3/11/99 1692 Grid C-5; clay 2 to 3 1.6 BD1529 3/11/99 1692 Grid C-5; sand/clay/fill 3 to 4 140 BD1530 3/11/99 1692 Grid C-5; fill 4 to 5 140 BD1531 3/11/99 1692 Grid C-5; fill 6 to 7 8.3 BD1532 3/11/99 1692 Dupl. ofBD1531 6 to 7 7.3 BD1533 3/11/99 1692 Grid C-5; silt 7 to 8 4.1 BD1534 3/11/99 1693 Grid C-5; silt 8 to 9 6.3 BD1535 3/11/99 1693 Grid C-5; silt 9 to 10 14 BD1536 3/11/99 1693 Grid C-5; sand /gravel 10 to 11 10 Bedrock @ 1010"

17 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

C-4 BD1537 3/11/99 1693 Grid C-4; cap Otol <1.0 BD1538 3/11/99 1693 Grid C-4; cap/clay Ito2 1.8 BD1539 3/11/99 1693 Grid C-4; clay 2 to 3 <1.0 BD1540 3/11/99 1693 Grid C-4; clay/sand 3 to 4 11 BD1541 3/11/99 1693 Grid C-4; sandy silt 4 to 5 1.3 BD1542 3/11/99 1693 Dupl. of BD1541 4 to 5 <1.0 BD1543 3/11/99 1693 Grid C-4; sandy silt 5 to 6 <1.0 BD1544 3/11/99 1693 Grid C-4; sandy silt 6 to 7 2.1 BD1545 3/11/99 1693 Grid C-4; silt 7 to 8 1.2 BD1546 3/11/99 1693 Grid C-4; silt 8 to 9 12 Bedrock @ 9'10"

C-3 BD1547 3/11/99 1693 Grid C-3; cap Otol <1.0 BD1548 3/11/99 1693 Grid C-3; cap /clay Ito2 280 BD1549 3/11/99 1694 Grid C-3; fill 2 to 3 510 BD1550 3/11/99 1694 Grid C-3; sand /silt 3 to 4 1.4 BD1551 3/11/99 1694 Dupl. of BD1550 3 to 4 10 BD1552 3/11/99 1694 Grid C-3; sandy silt 4 to 5 <1.0 BD1553 3/11/99 1694 Grid C-3; sandy silt 5 to 6 <1.0 BD1554 3/11/99 1694 Grid C-3; silt 6 to 7 4.5 BD1555 3/11/99 1694 Grid C-3; silt/gravel 7 to 8 7.0 BD1556 3/11/99 1694 Grid C-3; sand /gravel 9 to 10 9.1 Bedrock @ 97"

D-2/E-2 BD1557 3/11/99 1694 Grid D-2/E-2; cap /clay Otol 15 BD1558 3/11/99 1694 Grid D-2/E-2; fill Ito2 33 BD1559 3/11/99 1694 Grid D-2/E-2; fill 2 to 3 <1.0 BD1560 3/11/99 1694 Grid D-2/E-2; clay 4 to 5 <1.0 BD1561 3/11/99 1694 Dupl. of BD1560 4 to 5 <1.0 BD1562 3/11/99 1694 Grid D-2/E-2; sand/silt 5 to 6 <1.0 Bedrock @ 6 ft

D-3 BD1563 3/11/99 1694 Grid D-3; cap/clay Otol <1.0 BD1564 3/11/99 1695 Grid D-3; clay/fill Ito2 41 BD1565 3/11/99 1695 Grid D-3; fill 2 to 3 410 BD1566 3/11/99 1695 Grid D-3; fill 3 to 4 4.5 BD1567 3/11/99 1695 Grid D-3; clayey gravel 5 to 6 3.9

IS Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

BD1568 3/11/99 1695 Grdi D-3; silt 6 to 7 <1.0 BD1569 3/11/99 1695 Grdi D-3; silt 7 to 8 <1.0 BD1570 3/11/99 1695 Grdi D-3; silt 8 to 9 <1.0 BD1571 3/11/99 1695 Dupl. of BD1570 8 to 9 <1.0 BD1572 3/11/99 1695 Grid D-3; silt 9 to 10 <1.0 BD1573 3/11/99 1695 Grid D-3; sand /gravel 10 to 11 1.1 BD1574 3/11/99 1695 Grid D-3; sand /gravel 11 to 12 1.4 Bedrock @ 12'2"

D-4 BD1575 3/11/99 1695 Grid D-4; cap /clay Otol <1.0 BD1576 3/11/99 1695 Grid D-4; cap /clay Ito2 <1.0 BD1577 3/11/99 1695 Grid D-4; clay 2 to 3 <1.0 BD1578 3/11/99 1695 Grid D-4; clay /fill 3 to 4 350 BD1579 3/11/99 1696 Grid D-4; fill 4 to 5 2300 BD1580 3/11/99 1696 Grid D-4; clay 6 to 7 150 BD1581 3/11/99 1696 Dupl. of BD1580 6 to 7 170 BD1582 3/11/99 1696 Grid D-4; clay 7 to 8 34 BD1583 3/11/99 1696 Grid D-4; silt 8 to 9 6.5 BD1584 3/11/99 1696 Grid D-4; silt 9 to 10 1.9 BD1585 3/11/99 1696 Equipment rinseate NA 17ug/L BD1586 3/11/99 1696 Grid D-4; silt 10 to 11 2.1 Bedrock @ 13 ft

E-3 BD1587 3/12/99 1697 Grid E-3; cap Otol <1.0 BD1588 3/12/99 1697 Grid E-3; cap /clay Ito2 <1.0 BD1589 3/12/99 1697 Grid E-3; clay 2 to 3 <1.0 BD1590 3/12/99 1697 Grid E-3; clay/fill 3 to 4 49.3 BD1591 3/12/99 1697 Dupl. of BD1590 3 to 4 58 BD1592 3/12/99 1697 Grid E-3; clay 5 to 6 <1.0 BD1593 3/12/99 1697 Grid E-3; clay 6 to 7 <1.0 BD1594 3/12/99 1697 Grid E-3; clayey silt 7 to 8 <1.0 BD1595 3/12/99 1697 Grid E-3; clayey silt 8 to 9 <1.0 BD1596 3/12/99 1697 Grid E-3; clayey silt 9 to 10 <1.0 BD1597 3/12/99 1697 Grid E-3; clayey silt 10 to 11 <1.0 BD1598 3/12/99 1697 Grid E-3; clayey silt 11 to 12 <1.0 Bedrock @ 12'8"

E-8 BD1599 3/12/99 1697 Grid E-8; topsoil/clay Otol <1.0 BD1600 3/12/99 1697 Grid E-8; clay Ito2 <1.0 BD1601 3/12/99 1697 Grid E-8; clay 2 to 3 <1.0

19 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

BD1602 3/12/99 1698 Grid E-8; clay 2 to 3 <1.0 BD1603 3/12/99 1698 Grid E-8; clay 3 to 4 <1.0 BD1604 3/12/99 1698 Grid E-8; clay 4 to 5 <1.0 BD1605 3/12/99 1698 Grid E-8; clay 5 to 6 <1.0 BD1606 3/12/99 1698 Grid E-8; clay 6 to 7 <1.0 BD1607 3/12/99 1698 Grid E-8; clay 7 to 8 <1.0 BD1608 3/12/99 1698 Grid E-8; clay 8 to 9 <1.0 BD1609 3/12/99 1698 Grid E-8; silt 9 to 10 <1.0 BD1610 3/12/99 1698 Grid E-8; silty clay 10 to 11 <1.0 Bedrock @ 1010"

G6-NW BD1611 3/12/99 1698 Grid G6-NW; cap Otol 1.5 BD1612 3/12/99 1698 Dupl. ofBD1611 Otol 1.5 BD1613 3/12/99 1698 Grid G6-NW; cap/fill Oto2 160 BD1614 3/12/99 1698 Grid G6-NW; clay 2 to 3 <1.0 BD1615 3/12/99 1698 Grid G6-NW; clay 3 to 4 <1.0 BD1616 3/12/99 1698 Grid G6-NW; clay 6 to 8 <1.0 BD1617 3/12/99 1699 Grid G6-NW; clay 8 to 9 <1.0 BD1618 3/12/99 1699 Grid G6-NW; clay 9 to 10 <1.0 BD1619 3/12/99 1699 Grid G6-NW; clay 10 to 11 <1.0 BD1620 3/12/99 1699 Grid G6-NW; clay 11 to 12 <1.0 BD1621 3/12/99 1699 Dupl. of BD1620 11 to 12 <1.0 BD1622 3/12/99 1699 Grid G6-NW; clay 12 to 13 <1.0 BD1623 3/12/99 1699 Grid G6-NW; clay 13 to 14 <1.0 BD1624 3/12/99 1699 Grid G6-NW; clay 14 to 15 <1.0 BD1625 3/12/99 1699 Grid G6-NW; clay 15 to 16 <1.0 BD1626 3/12/99 1699 Grid G6-NW; clay 16 to 17 <1.0 BD1627 3/12/99 1699 Grid G6-NW; clay 17 to 18 <1.0 Bedrock @ 1710"

G-8 BD1628 3/12/99 1699 Grid G-8; clay Otol 3200 BD1629 3/12/99 1699 Grid G-8; clayey gravel Ito2 2500 BD1630 3/12/99 1699 Grid G-8; clay 2 to 3 370 BD1631 3/12/99 1699 Dupl. of BD1630 2 to 3 800 BD1632 3/12/99 1700 Grid G-8; clay 3 to 4 1500 BD1633 3/12/99 1700 Grid G-8; clay 4 to 5 1600 BD1634 3/12/99 1700 Grid G-8; clay 5 to 6 930 BD1635 3/12/99 1700 Grid G-8; clay 6 to 7 340 BD1636 3/12/99 1700 Grid G-8; clayey silt 7 to 8 90 BD1637 3/12/99 1700 Grid G-8; clay 8 to 9 1500 BD1638 3/12/99 1700 Grid G-8; clay 9 to 10 830

20 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

BD1639 3/12/99 1700 Grid G-8; clay 10 to 11 910 BD1640 3/12/99 1700 Grid G-8; clay 11 to 12 720 BD1641 3/12/99 1700 Dupl. of BD1640 11 to 12 210 BD1642 3/12/99 1700 Grid G-8; clayey silt 12 to 13 <1.0 BD1643 3/12/99 1700 Grid G-8; clayey silt 13 to 14 <1.0 BD1644 3/12/99 1700 Grid G-8; silty sand 14 to 15 2.8 Bedrock @ 15'2"

F-10 BD1645 3/12/99 1700 Grid F-10; cap/clay Otol 9.5 BD1646 3/12/99 1700 Grid F-10; clay Ito2 5.7 BD1647 3/12/99 1701 Grid F-10; clay 2 to 3 11 Bedrock @ 3 ft

E-14 BD1648 3/12/99 1701 Grid E-14; clay Otol <1.0 BD1649 3/12/99 1701 Grid E-14; clay Ito2 <1.0 BD1650 3/12/99 1701 Grid E-14; clay 2 to 3 <1.0 BD1651 3/12/99 1701 Dupl. of BD1650 2 to 3 <1.0 BD1652 3/12/99 1701 Grid E-14; clay 3 to 4 <1.0 BD1653 3/12/99 1701 Grid E-14; clay 4 to 5 <1.0 Bedrock @ 410"

E-13 BD1654 3/12/99 1701 Grid E-13; clay Otol <1.0 BD1655 3/12/99 1701 Grid E-13; silt Ito2 <1.0 BD1656 3/12/99 1701 Grid E-13; clayey silt 2 to 3 <1.0 BD1657 3/12/99 1701 Grid E-13; clay 3 to 4 <1.0 BD1658 3/12/99 1701 Grid E-13; clay 4 to 5 <1.0 Bedrock @ 47" BD1659 3/12/99 1701 Equipment rinseate NA 45ug/L

A-8 BD1660 3/15/99 1702 Grid A-8; sand Otol 1.6 BD1661 3/15/99 1702 Grid A-8; clay 1 to 2 <1.0 BD1662 3/15/99 1702 Grid A-8; clay 2 to 3 <1.0 BD1663 3/15/99 1702 Grid A-8; clay 3 to 4 <1.0 Bedrock @ 4'2"

A-7 BD1664 3/15/99 1710 Grid A-7; fill Ito2 1.7 BD1665 3/15/99 1710 Grid A-7; clay 2 to 3 <1.0

21 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

BD1666 3/15/99 1710 Grid A-7; clay 3to4 1.7 BD1667 3/15/99 1710 Grid A-7; clay 4 to 5 <1.0 Bedrock @ 47"

A-9 BD1668 3/15/99 1702 Grid A-9; clay Ito2 <1.0 BD1669 3/15/99 1702 Grid A-9; clay 2 to 3 <1.0 BD1670 3/15/99 1702 Grid A-9; clay 3 to 4 <1.0 BD1671 3/15/99 1702 Dupl. ofBD1670 3 to 4 <1.0 BD1672 3/15/99 1702 Grid A-9; clay 4 to 5 <1.0 BD1673 3/15/99 1702 Grid A-9; clay 5 to 6 6.9 BD1674 3/15/99 1702 Grid A-9; clay 6 to 7 2.9 Bedrock @ 7 ft

A-10 BD1675 3/15/99 1703 Grid A-10; fill Otol 7.9 BD1676 3/15/99 1703 Grid A-10; clay Ito2 <1.0 BD1677 3/15/99 1703 Grid A-10; clay 3 to 4 <1.0 BD1678 3/15/99 1703 Grid A-10; clay 4 to 5 <1.0 BD1679 3/15/99 1703 Grid A-10; clay 5 to 6 <1.0 BD1680 3/15/99 1703 Grid A-10; clay 6 to 7 <1.0 BD1681 3/15/99 1703 Dupl. of BD1680 6 to 7 <1.0 BD1682 3/15/99 1703 Grid A-10; sand 7 to 8 <1.0 Bedrock @ 8 ft

A-ll BD1683 3/15/99 1703 Grid A-ll; fill Otol 1.9 BD1684 3/15/99 1703 Grid A-ll; clay Ito2 <1.0 BD1685 3/15/99 1703 Grid A-ll; clay 2 to 3 <1.0 BD1686 3/15/99 1703 Grid A-ll; clay 3 to 4 <1.0 BD1687 3/15/99 1703 Grid A-ll; clay 4 to 5 <1.0 BD1688 3/15/99 1703 Grid A-ll; clay 5 to 6 <1.0 BD1689 3/15/99 1703 Grid A-ll; clay 6 to 7 <1.0 BD1690 3/15/99 1704 Grid A-ll; sand 8 to 9 <1.0 BD1691 3/15/99 1704 Dupl. of BD1690 8 to 9 <1.0 Bedrock @ 8'9"

A-12 BD1692 3/15/99 1704 Grid A-12; clay Otol 8.3 BD1693 3/15/99 1704 Grid A-12; clay 3 to 4 1.6 BD1694 3/15/99 1704 Grid A-12; clay 4 to 5 4.4 BD1695 3/15/99 1704 Grid A-12; sand 5 to 6 3.0

22 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

Bedrock @ 6 ft

A-13 BD1696 3/15/99 1704 Grid A-13; fill Otol 8.4 BD1697 3/15/99 1704 Grid A-13; clay 2 to 3 4.9 BD1698 3/15/99 1704 Grid A-13; clay 3 to 4 <1.0 BD1699 3/15/99 1704 Grid A-13; clay 4 to 5 <1.0 BD1700 3/15/99 1704 Grid A-13; clay 6 to 7 1.6 BD1701 3/15/99 1704 Dupl. of BD1700 6 to 7 1.3 BD1702 3/15/99 1704 Grid A-13; gravel 7 to 8 2.0 Bedrock @ 8'2"

A-14 BD1703 3/15/99 1704 Grid A-14; clay Ito2 <1.0 BD1704 3/15/99 1704 Grid A-14; clay 2 to 3 <1.0 BD1705 3/15/99 1705 Grid A-14; clay 3 to 4 <1.0 BD1706 3/15/99 1705 Grid A-14; clay 4 to 5 2.7 BD1707 3/15/99 1705 Grid A-14; clay 5 to 6 3.3 BD1708 3/15/99 1705 Grid A-14; sand 7 to 8 2.9 Bedrock @ 8'2"

A-15 BD1709 3/15/99 1705 Grid A-15; clay Otol 1.4 BD1710 3/15/99 1705 Grid A-15; clay 2 to 3 <1.0 BD1711 3/15/99 1705 Dupl. of BD1710 2 to 3 <1.0 BD1712 3/15/99 1705 Grid A-15; clay 3 to 4 <1.0 BD1713 3/15/99 1705 Grid A-15; clay 4 to 5 8.3 BD1714 3/15/99 1705 Grid A-15; clay 5 to 6 13 BD1715 3/15/99 1705 Grid A-15; clay 6 to 7 11 BD1716 3/15/99 1705 Grid A-15; clay 7 to 8 5.2 Bedrock @ 8'2"

A-16 BD1717 3/15/99 1705 Grid A-16; fill Otol 1.3 BD1718 3/15/99 1705 Grid A-16; fill Ito2 <1.0 BD1719 3/15/99 1705 Grid A-16; clay 2 to 3 <1.0 BD1720 3/15/99 1706 Grid A-16; clay 3 to 4 <1.0 BD1721 3/15/99 1706 Dupl. of BD1 720 3 to 4 <1.0 BD1722 3/15/99 1706 Grid A-16; clay 4 to 5 2.8 BD1723 3/15/99 1706 Grid A-16; clay 5 to 6 4.4 BD1724 3/15/99 1706 Grid A-16; clay 6 to 7 4.2 BD1725 3/15/99 1706 Grid A-16; sand 8 to 9 4.0

23 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm Bedrock @ 8'9"

A-17 BD1726 3/15/99 1706 Grid A-17; clay Ito2 <1.0 BD1727 3/15/99 1706 Grid A-17; clay 2 to 3 <1.0 BD1728 3/15/99 1706 Grid A-17; clay 3 to 4 2.6 BD1729 3/15/99 1706 Grid A-17; clay 4 to 5 5.1 Bedrock @ 5 f t BD1730 3/15/99 1706 Equipment rinseate NA 5.2 ug/L

B-18 BD1731 3/16/99 1707 Grid B-18; clay Otol 7.4 BD1732 3/16/99 1707 Dupl. of BD1731 Otol 8.3 BD1733 3/16/99 1707 Grid B-18; clay Ito2 <1.0 BD1734 3/16/99 1707 Grid B-18; clay 3 to 4 1.2 BD1735 3/16/99 1707 Grid B-18; sand 4 to 5 2.0 Bedrock @ 4'6"

G-9 BD1736 3/16/99 1707 Grid G-9; clay Otol 18 BD1737 3/16/99 1707 Grid G-9; clay 1 to 2 1.3 BD1738 3/16/99 1707 Grid G-9; clay 2 to 3 2.2 BD1739 3/16/99 1707 Grid G-9; clay 4 to 5 <1.0 BD1740 3/16/99 1707 Grid G-9; clay 5 to 6 <1.0 BD1741 3/16/99 1707 Dupl. ofBD1740 5 to 6 <1.0 BD1742 3/16/99 1707 Grid G-9; clay 6 to 7 <1.0 BD1743 3/16/99 1707 Grid G-9; clay 7 to 8 <1.0 BD1744 3/16/99 1707 Grid G-9; clay 8 to 9 <1.0 BD1745 3/16/99 1708 Grid G-9; clay 9 to 10 <1.0 BD1746 3/16/99 1708 Grid G-9; clay 10 to 11 <1.0 BD1747 3/16/99 1708 Grid G-9; clay 11 to 12 <1.0 BD1748 3/16/99 1708 Grid G-9; org. clay 12 to 13 <1.0 BD1749 3/16/99 1708 Grid G-9; org. clay 13 to 14 <1.0 BD1750 3/16/99 1708 Grid G-9; org. clay 14 to 15 <1.0 BD1751 3/16/99 1708 Dupl. of BD1750 14 to 15 <1.0 BD1752 3/16/99 NA Grid G-9; org. clay 15 to 16 NS BD1753 3/16/99 NA Grid G-9; org. clay 16 to 17 NS BD1754 3/16/99 NA Grid G-9; org. clay 17 to 18 NS BD1755 3/16/99 NA Grid G-9; org. clay 18 to 19 NS BD1756 3/16/99 NA Grid G-9; org. clay 19 to 20 NS BD1757 3/16/99 NA Grid G-9; org. clay 20 to 21 NS BD1758 3/16/99 NA Grid G-9; org. clay 21 to 22 NS BD1759 3/16/99 NA Grid G-9; org. clay 22 to 23 NS

24 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

BD1760 3/16/99 NA Grid G-9; org. clay 23 to 24 NS BD1761 3/16/99 NA Dupl. of BD1760 23 to 24 NS BD1762 3/16/99 NA Grid G-9; org. clay 24 to 25 NS TD @ 25 ft

F-9 BD1763 3/16/99 1708 Grid F-9; clay Otol 72 BD1764 3/16/99 1708 Grid F-9; clay Ito2 6.3 BD1765 3/16/99 1708 Grid F-9; clay 2 to 3 <1.0 BD1766 3/16/99 1708 Grid F-9; clay 3 to 4 <1.0 BD1767 3/16/99 1708 Grid F-9; clay 4 to 5 <1.0 BD1768 3/16/99 1708 Grid F-9; clay 5 to 6 <1.0 BD1769 3/16/99 1708 Grid F-9; clay 6 to 7 <1.0 BD1770 3/16/99 1708 Grid F-9; clay 7 to 8 <1.0 BD1771 3/16/99 1708 Dupl. of BD1770 7 to 8 <1.0 BD1772 3/16/99 1709 Grid F-9; clay 8 to 9 <1.0 BD1773 3/16/99 1709 Grid F-9; clay 9 to 10 <1.0 BD1774 3/16/99 1709 Grid F-9; clay 10 to 11 <1.0 BD1775 3/16/99 1709 Grid F-9; org. clay 11 to 12 <1.0 BD1776 3/16/99 1709 Grid F-9; org. clay 12 to 13 <1.0 BD1777 3/16/99 1709 Grid F-9; org. clay 13 to 14 <1.0 BD1778 3/16/99 1709 Grid F-9; org. clay 14 to 15 <1.0 BD1779 3/16/99 1709 Grid F-9; org. clay 15 to 16 <1.0 BD1780 3/16/99 1709 Grid F-9; org. clay 16 to 17 3.7 BD1781 3/16/99 1709 Dupl. of BD1781 16 to 17 4.8 Bedrock @ 18 ft

F-8 BD1782 3/16/99 1709 Grid F-8; clay Otol <1.0 BD1783 3/16/99 1709 Grid F-8; clay Ito2 <1.0 BD1784 3/16/99 1709 Grid F-8; clay 2 to 3 <1.0 BD1785 3/16/99 1709 Grid F-8; clay 3 to 4 <1.0 BD1786 3/16/99 1709 Equipment rinseate NA 2.0ug/L TD @ 7 f t

F-5 BD1787 3/17/99 1711 Grid F-5; cap Otol <1.0 BD1788 3/17/99 1711 Grid F-5; cap Ito2 <1.0 BD1789 3/17/99 1711 Grid F-5; clay 2 to 3 <1.0 BD1790 3/17/99 1711 Grid F-5; clay 3 to 4 <1.0 BD1791 3/17/99 1711 Dupl. of BD1791 3 to 4 <1.0 BD1792 3/17/99 1711 Grid F-5; clay 4 to 5 <1.0 BD1793 3/17/99 1711 Grid F-5; clay 6 to 7 <1.0

25 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

BD1794 3/17/99 1711 Grid F-5; clay 7 to 8 <1.0 BD1795 3/17/99 1711 Grid F-5; clay 9 to 10 <1.0 BD1796 3/17/99 1711 Grid F-5; clay 10 to 11 <1.0 BD1797 3/17/99 1711 Grid F-5; clay 11 to 12 <1.0 BD1798 3/17/99 1711 Grid F-5; clay 12 to 13 <1.0 Bedrock @ 12'5"

E-4 BD1799 3/17/99 1711 Grid E-4; cap Otol <1.0 BD1800 3/17/99 1711 Grid E-4; cap/clay Ito2 73 BD1801 3/17/99 1711 Dupl. of BD1800 Ito2 40 BD1802 3/17/99 1712 Grid E-4; clay 2 to 3 <1.0 BD1803 3/17/99 1712 Grid E-4; clay 3 to 4 1.7 BD1804 3/17/99 1712 Grid E-4; clay/fill 4 to 5 260 Bedrock @ 810"

H-6 BD1805 3/17/99 1712 Grid H-6; clay Otol <1.0 BD1806 3/17/99 1712 Grid H-6; clay Ito2 <1.0 BD1807 3/17/99 1712 Grid H-6; clay 2 to 3 <1.0 BD1808 3/17/99 1712 Grid H-6; clay 3 to 4 <1.0 BD1809 3/17/99 1712 Grid H-6; clay 4 to 5 <1.0 BD1810 3/17/99 1712 Grid H-6; clay 5 to 6 <1.0 BD1811 3/17/99 1712 Dupl. of BD1810 5 to 6 <1.0 BD1812 3/17/99 1712 Grid H-6; clay 6 to 7 <1.0 BD1813 3/17/99 1712 Grid H-6; clay 7 to 8 <1.0 BD1814 3/17/99 1712 Grid H-6; clay 8 to 9 <1.0 BD1815 3/17/99 1712 Grid H-6; clay 9 to 10 <1.0 BD1816 3/17/99 1712 Grid H-6; clay 10 to 11 <1.0 BD1817 3/17/99 1713 Grid H-6; clay 13 to 14 <1.0 BD1818 3/17/99 1713 Grid H-6; clay 14 to 15 <1.0 Bedrock @ 15 ft

H-7 BD1819 3/17/99 1713 Grid H-7; clay Otol 150 BD1820 3/17/99 1713 Grid H-7; clay Ito2 34 BD1821 3/17/99 1713 Dupl. of BD1820 Ito2 97 BD1822 3/17/99 1713 Grid H-7; clay 2 to 3 6600 BD1823 3/17/99 1713 Grid H-7; clay 3 to 4 8700 BD1824 3/17/99 1713 Grid H-7; clay 4 to 5 7600 BD1825 3/17/99 1713 Grid H-7; clay 5to6 1600 BD1826 3/17/99 1713 Grid H-7; clay 6 to 7 2200

26 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

BD1827 3/17/99 1713 Grid H-7; org. clay 11 to 12 40 BD1828 3/17/99 1713 Grid H-7; org. clay 12 to 13 27 BD1829 3/17/99 1713 Grid H-7; org. clay 13 to 14 31 BD1830 3/17/99 1713 Grid H-7; org. clay 14 to 15 10 TD @ 15 ft

H-8 BD1831 3/17/99 1713 Grid H-8; clay Otol 80 BD1832 3/17/99 1714 Dupl. of BD1831 Otol 73 BD1833 3/17/99 1714 Grid H-8; clay/fill 1 to 2 12 BD1834 3/17/99 1714 Grid H-8; clay 2 to 3 1.5 BD1835 3/17/99 1714 Grid H-8; clay 3 to 4 <1.0 BD1836 3/17/99 1714 Grid H-8; clay 4 to 5 <1.0 BD1837 3/17/99 1714 Grid H-8; clay 5 to 6 <1.0 BD1838 3/17/99 1714 Grid H-8; clay 6 to 7 1.1 BD1839 3/17/99 1714 Grid H-8; clay 7 to 8 <1.0 BD1840 3/17/99 1714 Grid H-8; clay 8 to 9 <1.0 BD1841 3/17/99 1714 Dupl. of BD1840 8 to 9 <1.0 BD1842 3/17/99 1714 Grid H-8; clay 9 to 10 <1.0 Bedrock @ 9'8"

F-4 BD1843 3/17/99 1714 Grid F-4; clay Otol <1.0 BD1844 3/17/99 1714 Grid F-4; clay Ito2 <1.0 BD1845 3/17/99 1714 Grid F-4; clay 2 to 3 <1.0 BD1846 3/17/99 1714 Grid F-4; clay 3 to 4 <1.0 BD1847 3/17/99 1715 Grid F-4; clay 5 to 6 <1.0 BD1848 3/17/99 1715 Grid F-4; clay 6 to 7 <1.0 BD1849 3/17/99 1715 Grid F-4; clay 7 to 8 <1.0 BD1850 3/17/99 1715 Grid F-4; clay 8 to 9 <1.0 BD1851 3/17/99 1715 Dupl. of BD1850 8 to 9 <1.0 BD1852 3/17/99 1715 Grid F-4; clay 11 to 12 <1.0 Bedrock @ 12'2" BD1853 3/17/99 1715 Equipment rinseate NA 13H8/L

G-5 BD1854 3/18/99 1716 Grid G-5; clay Otol 1.5 BD1855 3/18/99 1716 Grid G-5; clay Ito2 <1.0 BD1856 3/18/99 1716 Grid G-5; clay 3 to 4 <1.0 BD1857 3/18/99 1716 Grid G-5; clay 4 to 5 <1.0 BD1858 3/18/99 1716 Grid G-5; clay 5 to 6 <1.0 BD1859 3/18/99 1716 Grid G-5; clay 6 to 7 <1.0

27 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

BD1860 3/18/99 1716 Grid G-5; clay 7 to 8 <1.0 BD1861 3/18/99 1716 Dupl. of BD1860 7 to 8 <1.0 BD1862 3/18/99 1716 Grid G-5; clay 8 to 9 <1.0 BD1863 3/18/99 1716 Grid G-5; clay 9 to 10 <1.0 BD1864 3/18/99 1716 Grid G-5; clay 12 to 13 <1.0 Bedrock @ 12'2"

G-4 BD1865 3/18/99 1716 Grid G-4; clay 2 to 3 <1.0 BD1866 3/18/99 1716 Grid G-4; clay 3to4 <1.0 BD1867 3/18/99 1716 Grid G-4; clay 6 to 7 <1.0 Bedrock @ 6'5"

B-13/14 BD1868 3/18/99 1537 Grid B-13/14; topsoil Otol <1.0 BD1869 3/18/99 1537 Grid B-13/14; clay Ito2 140 BD1870 3/18/99 1537 Grid B-13/14; clay 2 to 3 22 BD1871 3/18/99 1537 Dupl. of BD1870 2 to 3 40 BD1872 3/18/99 1537 Grid B-13/14; clay 3 to 4 3.2 BD1873 3/18/99 1537 Grid B-13/14; clay 4 to 5 3.6 BD1874 3/18/99 1537 Grid B-13/14; clay 5 to 6 5.4 BD1875 3/18/99 1537 Grid B-13/14; clay 6 to 7 8.6 BD1876 3/18/99 1537 Grid B-13/14; clay 8 to 9 8.4 Bedrock @ 9 ft

H-9 BD1877 3/18/99 1717 Grid H-9; clay Otol 13 BD1878 3/18/99 1717 Grid H-9; clay Ito2 1.4 Bedrock @1 '9"

B-12/13 BD1879 3/18/99 1717 Grid B-12/13; clay Otol <1.0 BD1880 3/18/99 1717 Grid B-12/13; clay Ito2 <1.0 BD1881 3/18/99 1717 Dupl. of BD1880 Ito2 <1.0 BD1882 3/18/99 1717 Grid B-12/13; clay 2 to 3 130 BD1883 3/18/99 1717 Grid B-12/13; clay 3 to 4 24 BD1884 3/18/99 1717 Grid B-12/13; clay 4 to 5 9.2 Bedrock @ 5 ft

28 Bennett's Dump Soil Delineation

Chain-of- Sample Date Custody Sample PCB Number Sampled Number Location & Description Depth, ft Result, ppm

TF-8 BD1885 3/18/99 1717 Grid TF-8; clay Otol <1.0 BD1886 3/18/99 1717 Grid TF-8; clay Ito2 <1.0 BD1887 3/18/99 1717 Grid TF-8; clay 2 to 3 <1.0 BD1888 3/18/99 1717 Grid TF-8; clay 3to4 <1.0 BD1889 3/18/99 1717 Grid TF-8; clay 4 to 5 <1.0 BD1890 3/18/99 1717 Grid TF-8; clay 5 to 6 <1.0 BD1891 3/18/99 1717 Dupl. of BD1890 5 to 6 <1.0 BD1892 3/18/99 1718 Grid TF-8; clay 6 to 7 <1.0 BD1893 3/18/99 1718 Grid TF-8; clay 7 to 8 <1.0 BD1894 3/18/99 1718 Grid TF-8; clay 8 to 9 <1.0 BD1895 3/18/99 1718 Grid TF-8; clay 9 to 10 <1.0 BD1896 3/18/99 1718 Grid TF-8; clay 10 to 11 <1.0 BD1897 3/18/99 1718 Grid TF-8; clay 11 to 12 <1.0 BD1898 3/18/99 1718 Grid TF-8; day 12 to 13 <1.0 BD1899 3/18/99 1718 Grid TF-8; clay 13 to 14 <1.0 BD1900 3/18/99 1718 Grid TF-8; clay 14 to 15 <1.0 BD1901 3/18/99 1718 Grid TF-8; clay 14 to 15 <1.0 Bedrock @ 14'3" BD 1902 3/18/99 1718 Equipment rinseate NA 15ug/L

BDSA -1 BD1903 3/18/99 1718 BDSA-1 Otol 98 refusal @ 8"

BDSA-2 BD1904 3/18/99 1718 BDSA-2 Otol 95 BD1905 3/18/99 1718 BDSA-2 Ito2 <1.0 refusal @ 1'8"

BDSA-3 BD1906 3/18/99 1718 BDSA-3 Otol 1.3 refusal @ 9"

BDSA-4 BD1907 3/18/99 1719 BDSA-4 Otol <1.0 refusal @ 8"

29