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. Table 1: Groundwater Monitoring Results using EPA methods 8015m and 8020(ug/L) Well ID Date DTW TPH-d TPH-2 TPH-m B T E X MTBE MW-1 Aug-96 10.34' <50 1,800 NA 98 18.8 55.8 130 1,300 ' Apr-97 9.21' 68 520 NA 31 <0.5 2.8 1.5 910 Mar-98 6.90' <500 <50 NA <0.5 <0.5 <0.5 <1 11 Sep-98 10.05' <500 <50 <500 <0.5 <0.5 <0.5 <1 63 ' Dec-98 9.95' <500 130 <500 4 <5 7 1.3 379 MW-2 Aug-96 10.20' 95 850 NA 12.7 7.9 4.5 120 12.3 ' Apr-97 9.02' 250 73 NA 6.4 <0.5 2.2 0.7 <12.5 Mar-98 6.70' <500 <50 NA <0.5 <0.5 <0.5 <1 <5 Sep-98 9.87' <500 120 <500 4.4 <0,5 1.3 <1 <10 Dec-98 9.79' <500 180 <500 2 <5 4 <5 <10 ' MW-3 Aug-96 10.40' 610 8,000 NA 610 170 96.6 540 1,700 Apr-97 9.25' 1,800 30,000 NA 3,200 2,000 1,400 1,000 14,000 I Mar-98 7.10' <500 42,000 NA 7,290 500 <25 560 29,400 Sep-98 10.08' 600 26,000 <500 3,570 190 854 1,357 13,600 Dec-98 10.04' 1,300 4,300 <500 870 63 400 703 3,700 IMW-4 Mar-98 6.20' <500 <50 NA <0.5 <0.5 <0.5 <1 <5 Sep-98 9.66' <500 80 <500 1.6 <0.5 1.6 2.8 <10 Dec-98 9.45' <500 110 <500 <5 0.4 0.5 1.4 42 NMW-5 Mar-98 7.06' <500 <50 NA <0.5 <0.5 <0.5 <1 <5 Sep-98 9.97' <500 90 <500 0.6 <0.5 <0.5 <1 <10 ' Dec-98 9.84' NA <50 NA <5 <5 <5 <5 <10 MW-6 Mar-98 7.05' 1,500 <250 NA <2.5 <2.5 <2.5 <5 <25 Se1r98 10.04' <500 <50 <500 <0.5 <0.5 <0.5 <1 <10 Dec-98 9.94' <500 <50 <300 <5 <5 <5 <5 <10 ' MW-7 Mar-98 6.70' <500 <50 NA <0.5 <0.5 <0.5 <1 <5 Sep-98 9.85' <500 <50 <500 <0.5 <0.5 <0.5 <1 <10 Dee-98 9.79' <500 <50 <500 <5 0.4 <5 0.5 <10 I DTW-Depth To Water(feet below grade). TPH-d=Total Petroleum Hydrocarbons as Diesel. TPH-g-Total Petroleum Hydrocarbons as Gasoline. 1 TPH-m-Total Petroleum Hydrocarbons as Motor Oil. Unknown compounds in motor oil range. Mixture in mineral spirit/diesel range. Mixture of diesel and motor oil. BTEX results from EPA method 8260. 1