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TABLE 2 ANALYTICAL RESULTS OF GROUNDWATER SAMPLES EPA Method 8015M18020 Shockey And Sons Trucking 850 Milgeo Avenue, Ripon, California Well I. D. Sample TPH-g TPH-d Benzene Toluene Ethyl Xylenes MTBE (Well Date benzene screen) MW4 06-24-96 660 22,000 0.63 2.7 <0.5 54 5.2 (8-28) 09-24-96 --- 140,000 10 2.2' 4.1 12 <5.0 12-05-96 300 44,000 3.8 <0.5 0.53 1.1 --- 03-27-97 <50 2,600 <0.5 <0.5 <0.5 0.63 <5.0 ' 06-06-97 390 220,000 1.2 0.57 0.71 1.8 <5.0 10-31-97 220 19,000 5.0 0.61 0.56 1.3 7.7 01-23-98 500 79,000 1.1 0.58 0.66 0.60 <5.0 04-07-98 190 13,000 1.1 <0.5 <0.5 <0.5 <5.0 ' 06-11-98 230 23;000. 0.55 <0.5 <0.5 <0.5 <5.0 03-25-99 110 6,200 0.65 <0.5 <0.5 <0.5 <5.0 ' 06-25-99 280 75,000 2.1 0.64 <0.5 0.96 <5.0 03-17-01. 270 2,800 0.56 <0.5 <0.5 <0.5 <5.0 06-15-00 <50 4,800 <0.5 <0.5 <0.5 <0.5 <5.0 04-11-01 590 85,000 0.56 <0.5 1.7 0.91 <5.0 10-26-01, 280 260,000 <0.5 <0.5 <0.5 <0.5 <5.0 01-29-02 640 840,000 <0.5 <0.5 1.1 0.83 <5.0 06-21-02 9,000 450,000 1.4 <0.5 3.5 <0.5 <5.0 ' 02-07-03 93,000 6,700 <0.5 1.8 2.1 8.4 <1.0 06-19-03 6,300 1,200,000 <0.5 <0.5 <0.5' <0.6 <1.0 01-29-04 7,000 21,000 <0.5 <0.5 <0.5 <0.6 <1.0 02-23-05 <50 <50 --- _-- --- --- --- 05=13-05 _220,000 1,500,000 2.9 2.4 13 5.9 <1.0 08717-05 270,000* 1,200,000 <0.5 <0,5 <0.5 <0,6 <1 MW-5 05-13-03 <50 <50 <0.5 <0.5 <0.5 <0.6 <1.0 (10-30) 06-19-03 <50 <50 <0.5 <0.5 <0.5 <0.6 <1.0 01-29-04 <50 3,300 <0.5 <0.5 <0.5 <0.6 <1.0 06-I0-04 <50 <50 <0.5 <0.5 <0.5 <0.6 <1.0 ' Nates: Ground water depth measurements in feet µg11: -micrograms per liter. ' TPH-g: Total petroleum hydrocarbons quantified as gasoline. TPH-d: Total petroleum hydrocarbons quantified as diesel. MTBE: methyl tertiary butyl ether Not analyzed * This concentration is mostly in Diesel Range Organic. ' Advanced GeoEnvironmental,Inc.