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t • TABLE 2 ANALYTICAL RESULTS OF GROUND WATER SAMPLES EPA Method 8015/8260M Den's Auto Repair 308 South El Dorado Street, Stockton, California Well SD t e Depth to TPH-g Benzene T4laen� Ethyl- xylt:nts I Date beweno MW-1/A 09-24-97 3040 13,000 3,300 200 700 380 I 65-60 feet 04-09-98 2540 23,000 3,500 180 940 340 11-20-98 2510 21,000 3,200 83 1,000 290 09-23-99 2444 7,115 1,075 56 500 70 12-30-99 2490 5,730 775 28 170 143 03-30-00 2290 14,600 310 30 193 74 MW-1/B 09-24-97 3008 7,000 320 41 250 170 45-25 feet 04-09-98 2526 2,200 42 49 17 19 11-20-98 2496 910 52 35 54 11 09-23-99 24 15 4,770 55 25 <0 5 <0 5 , I 12-30-99 2488 830 14 056 10 15 03-30-00 2292 2,600 70 25 10 70 MW-2/A 09-24-97 3070 11,000 1,900 55 260 990 65-60 feet 04-09-98 2564 9,400 2,100 48 70 110 11-20-98 2547 5,900 1,100 28 54 53 09-23-99 2482 4,720 95 10 <0 5 <0 5 12-30-99 2633 650 93 23 28 46 03-30-00 2333 2,990 175 54 76 93 MW-2/B 09-24-97 3032 11,000 120 20 190 1,500 I 45-25 feet 04-09-98 25 36 4,700 _340 10 85 44 11-20-98 25 03 5,300 1,100 11 250 230 09-23-99 2448 3,235 a 900 30 195 420 I 12'-30-99 25 05 4,240 220 8.6 42 648 03-30-00 2340 20,800 82 70 11 36 MW-3/A' 09-24-97 31 51 1,100 099 39 24 7'1 { 65-60 feet 04-09-98 2639 650 <0 5 34 14 33 11-20-98 2629 330 <0 5 16 071 20 09-23-99 2564 1,735 056 1 1, 50 80 I t 12-30-99 2602 200 <0 5 <0 5 0.6 06 03-30-00 2419 <50 <0 5 <0 5 <0 5 <0 5 1 MW-3/13' 09-24-97 31 24 1,600 <0 5 21 21 6.0 40-20 feet 04-09-98 2620 420 <0 5 14 31 3.9 11-20-98 2608 <50 <0 5 099 <0 5 077 09-23-99 2544 900 23 1.0 60 9.0 I 12-30-99 26 18 220 <0 5 <05 07 05 03-30-00 1 2410 1 520 1 <0 5 1 <0 5 <0 5 <0 5 Notes µg11 teUcrograms per titer TPH-g=Total petroleum hydrocarbons quantified as gasolene Ground water depth measurements en feet Advanced Geo Environmental,Inc