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Historical Groundwater Monitoring Data Eckert Cold Storage Gasoline Benzene Toluene Ethyl Benzene Total Xylenes TPH-G TPH-D MTBE Oxygenates/ DTW GWE Additives Analytical Method: 82608 8260B 82608 82608 5030/8015M 3510/8015M 8260E 82608 Detection Limit. 0,3 u !L 0,3 a IL 0.3 u IL 0.6 u IL OAS m !L 0,05 m IL 1.0 u IL feet feet Monitor Wel! TOC Elev. Sam le Date MW-7 cont. 6/26/2002 <0.5 <0.5 <0.5 <1.0 <0.05 <0.05 <0.5 <0.5-<5.0 18.78 19.44 9/3012002 <0.5 <0.5 <0.5 <1.0 <0.05 NA <0,5 <0.5-<5.0 20.46 17.76 1 2/9120 0 2 <0.5 <0.5 <0.5 <1.0 <0.05 NA <0.5 <0.5-<5.0 18.49 19.73 3/2812003 NS NS NS NS NS NS NS NS 17.95 20.27 6/5/2003 NS NS NS NS NS NS NS NS 18.14 20.08 MW-8 1/5/2000 53 31 34 100 0.9 ND 4.1 NA 37.76 3/2712000 33 5.9 47 46 0.9 ND 9,0 NA 6/23/2000 1,600 42 710 1,600 17 ND 19 NA 9/812000 2,900 70 1,800 4,200 33 ND 36 NA 12/29/2000 310 ND 140 12 2.8 0.34 ND ND 3/5/2001 75 ND 24 ND 1 ND ND ND 6/4/2001 1,300 25 220 920 10 NO ND ND 9110/2001 2,000 33 1,800 1,800 21 ND 34 ND 12117!2001 572 ND 888 38 3.4 ND ND ND 2/27/2002 140* 0.8 160* 70 0.55 <0.05 <0,5 <0.5-<5.0 16.46 21.30 6!2612002 1,100 24 650 1617 9.8 <0,05 32 <5.0-<50 16.52 19.24 9/30/2002 480 2.3 51 27 5,4 NA 9.2 <2.0-<20 20.18 17.58 12!9!2002 16 <0.5 5.9 <1.0 0.34 NA 4.4 17(TBA);2.6 18.12 19,64 (1,2-DCA) 3128!2003 50 <0.5 15 5.0 0.97 NA 9.0 35(TBA);1.4 17.63 20.13 (1,2-DCA) 6/512003 100 0.6 35 6.2 0.87 NA 7.2 26 BA 17.98 19.78 DW 2/27/2002 <0.5 <0.5 <0.5 <1.0 <0.05 <0.05 <0,5 <0.5-<5.0 NM 6!26/2002 <0.5 <0.5 <0.5 <1.0 <0,05 <0.05 1 <0.5 <0.5-<5.0 NM 913012002. <0.5 <0.5 <0.5 <1,0 <0.05 NA <0.5 <0.5-<5,0 NM 12/9/2002 <0.5 <0.5 <0.5 <1.0 <0.05 NA <0.5 <0.5-<5.0 NM 3/2812003 <0.5 <0.5 <0,5 <1.0 <0.05 NA <0,5 <0.5-<5.0 NM 6/5/2003 <0.5 <0.5 <0.5 <1.0 <0.05 NA <0.5 <0.5-<5,0 NM 4: Data coilected prior to February 27,2002 was provided by WHF,Inc Detection Limits were amended as of the February 27,2002 groundwater monitoring event(See lab.Reports for detection limits) Elevations measured from the top of the well casing and are referenced to NGS Benchmark HS4486,elevation 35.03 feet using NAVD R8 datum. mg/L:milligrams per liter,parts per million(ppm) )4g/L,tnierograms Per liter,parts per billion(ppb) Ana-W W; H,T,E,X:beorene,toluene,ethyl benzcne,total xylenes TPH-G:total petroleum hydrocarbons quantified as gasoline Gasoline oxygenates/addaives:methyl tertiary buty3 ether(MTBE);ethanol;tertiary butanol(TBA);di-isopropyl ether(RIPE);ethyl tertiary butyl ether(EIRE);tertiary amyl methyl ether(TAMS);1,2-dichloroethane(1,2-DCA) DTW:depth m water GWE:groundwater elevation ND:trot detected at or above the laboratory reported detection limits NA:not analyzed NM:not measured - N5;not sampled •=estimated concentration Page 3 of 3