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0 <br /> TABLE 1 <br /> HISTORICAL GROUNDWATER DATA <br /> Former Discovery Chevrolet <br /> 1615 II'h Street <br /> Tracy, California <br /> Well. No./ Date Total Depth to Groundwater Floating Chlorinated <br /> Elev.' Sampled Depth' Water' Elevation Product TPHg Benzene Toluene Ethylbenzene Xylenes MTBE TPHd O&G Halocarbaru <br /> (ft.) (ft.) (ft.) (ft.) ( b) (ppb) (ppb) ( b) (ppb) (ppb) (ppb) ( b) (ppb) <br /> MW-1/ 09/16/94 20.0 9.97 35.03 --- 640 35 40 6.8 72 na na na na <br /> 45.00 03/08/95 20.0 10.05 34.95 ---- 3,900 730 510 140 430 na na na na <br /> 05/17/95 20.0 10.02 34.98 ---- 400 120 36 12 43 na na na na <br /> 08/07/95 20.0 10.98 34.02 ---- 1,400 250 170 64 170 na na na na <br /> 12/20/95 20.0 9.86 35.14 --- 17,000 3,100 2,000 670 2,400 na na na na <br /> 02/20/96 20.0 9.25 35.75 --- 3,300 880 310 230 390 na na na na <br /> 05/13/96 20.0 9.94 35.06 ---- 5,800 980 510 320 730 na na na na <br /> 08/13/96 20.0 10.83 34.17 ---- 100 20 17 7.9 18 <5 na na na <br /> 11/21/96 20.0 9.87 35.13 ---- 510 190 31 22 89 13 na na na <br /> MW-2/ 09/16/94 19.5 10.07 34.91 --- 7,600 370 180 260 680 na na na na <br /> 44.98 03/08/95 19.5 10.12 34.86 --- 1,000 180 47 57 180 na na na na <br /> 05/17/95 19.5 10.08 34.90 ---- 100 37 1.1 5.5 21 na na na na <br /> 08/07/95 19.5 10.89 34.09 ---- 60 10 3 2 9 na na na na <br /> 12/20/95 19.0 9.98 35.00 ---- 9,700 1,000 150 480 1,100 na na na na <br /> 02/20/96 19.5 9.62 35.36 ---- 8,600 800 150 430 1,000 na na na na <br /> 05/13/96 19.5 10.04 34.94 ---- 8,200 740 160 390 1,200 na na na na <br /> 08/13/96 19.5 10.95 34.03 ---- <50 1.1 0.8 0.7 2.8 <5 na na na <br /> 11/21/96 19.5 9.97 35.01 ---- <50 4.7 1.6 1.5 7 <5 na na na <br /> MW-3/ 09/16/94 19.5 10.49 35.10 --- <50 <0.5 <0.5 <0.5 <0.5 na <50 10,00 na <br /> 45.59 03/08/95 19.5 10.65 34.94 ---- <50 <0.5 <0.5 <0.5 <0.5 na 200 <1,00 na <br /> 05/17/95 19.5 10.66 34.93 ---- <50 <0.5 <0.5 <0.5 <2 na <50 <1,00 na <br /> 08/07/95 19.5 11.53 34.06 --- <50 <0.5 <0.5 <0.5 <0.5 na <50 <1,00 na <br /> 12/20/95 19.5 10.49 35.10 <50 <0.5 <0.5 <0.5 <0.5 na <50 <1,00 nd <br /> 02/20/96 19.5 10.18 35.41 ---- <50 <0.5 <0.5 <0.5 <0.5 na 60 na nd <br /> 05/13/96 19.5 10.51 35.08 -- <50 <0.5 <0.5 <0.5 <0.5 na <50 na nd <br /> 08/13/96 19.5 11.48 34.11 ---- na na na na na na 60 na nd <br /> 11/21/96 19.5 10.46 35.13 ---- na na na na na <5 <50 na nd <br /> Refer to page 2 for Explanation. <br /> 8146.03-4 <br /> Page 1 of 2 <br />