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' TABLE 2 ANALYTICAL RESULTS OF GROUND WATER SAMPLES EPA Method 8015/8020 ' Former Curtiss Pontiac Buick 2450 Toste Road, Tracy, California I Well S=Ple Depth TP'0 TP1€-d Benzene Toluene Ethyl- Xylenes ' I D Date to GW benzene li MW-lA 02-27-98 490 4,300 1,400 200 41 29 560 09-28-98 706 220 <50 15 3.7 45 17 12-17-98 686 58 <50 4.2 3.1 20 30 03-25-99 689 71 <50 081 093 12 082 MW-I B 02-27-98 121 5,000 1,200 480 140 89 600 09-28-98 701 2,000 160 530 260 55 130 12-17-98 702 560 93 270 36 13 22 03-25-99 688 3,600 290 1,300 120 110 88 MW-2A 02-27-98 555 <50 <50 <0 5 <0 5 <0 5 <0 5 09-28-98 700 <50 <50 <0 5 <0 5 <0 5 <0 5 12-17-98 704 <50 <50 <0 5 <0 5 <0 5 <0 5 03-25-99 689 <50 <50 <0 5 <0 5 <0 5 <0 5 MW-2B 02-27-98 563 <50 <50 <0 5 <0 5 <0 5 <0 5 • 09-28-98 708 <50 <50 <0 5 <0 5 <0 5 <0 5 12-17-98 7 12 <50 <50 <0 5 <0 5 <0 5 <0 5 03-25-99 693 <50 <50 <0 5 <0 5 <0 5 <0 5 MW-3 02-27-98 631 <50 <50 <0 5 <0 5 <0 5 <0 5 09-28-98 787 <50 <50 <0 5 <0 5 <0 5 <0 5 12-17-98 785 <50 <50 <0 5 <0 5 <0 5 <0 5 I03-25-99 769 <50 <50 <0 5 <0 5 <0 5 <0 5 MW-5 02-27-98 542 <50 <50 <0 5 <0 5 <0 5 <0 5 09-28-98 751 <50 <50 <0 5 <0 5 <0 5 <0 5 12-17-98 752 <50 <50 <0 5 <0 5 <0 5 <0 5 03-25-99 726 <50 <50 <0 5 <0 5 <0 5 <0 5 MW-6 02-27-98 605 <50 <50 <0 5 <0 5 <0 5 <0 5 09-28-98 768 <50 <50 <0 5 <0 5 <0 5 <0 5 12-17-98 764 <50 <50 <0 5 <0 5 <0 5 <0 5 I 03-25-99 753 <50 <50 <0 5 <0 5 <0 5 <0 5 MW-3* 01-30-98 -- <50 <50 <0 5 <0 5 <0 5 <0 5 09-28-98 864 <50 <50 27 1 6 <0 5 <0 5 I 12-17-98 873 <50 <50 <0 5 <0 5 <0 5 <0 5 03-25-99 1 861 <50 <50 <0 5 <0 5 <0 5 <0 5 Notes Ground water depth measurements in feet Ngll micrograms per liter or parts per billion,ppb TAH-g Total petroleum hydrocarbons quantified as gasoline TPH d Total petroleum hydrocarbons quantified as diesel I *ground water sample collected from 2420 Grant Line Road Iadvanced GeoEnvironmental Inc