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i • i <br /> TABLE 1 <br /> GROUNDWATER MONITORING DATA <br /> ARCO Service Station No 2130 <br /> 7906 North EI Dorado Street, Stockton, California <br /> Elevation Static Water Groundwater Ethyl- Total <br /> Well Top of Casing Top of Screen Level Elevation TPHg Benzene Toluene benzene Xylene MtBE <br /> Number Date feet msl ft btu ft btu feet rnslugIL u L IL IL L L Observations <br /> MW-10 2128195 1438 5300 5424 -39 86 300 0 9 <0 5 <0 5 <05 NA No FP, No S <br /> 5119195 1438 5232 -3794 370 0 9 <0 5 <0 5 <05 NA No FP, No S <br /> 8/28195 1438 5370 -3932 420 1 2 <0 5 <0 5 <05 NA No FP, No S <br /> 12/7195 1438 5261 -3823 490 0 7 <0 5 <05 <0 5 NA No FP, No S <br /> 2/5/96 1438 5013 -3575 350 0 7 <0 5 <05 <0 5 NA No FP, No S <br /> 5/30/96 1438 4709 -32 71 350*** <6** <05 <05 <0 5 <6** No FP, No S <br /> 9/18/96 1438 5084 -3646 510 <15** 1 0 <05 <0 5 <9** No FP, No S <br /> 11/26/96 1438 4872 -3434 <600*** <05 <0 5 <0 5 <0 5 <10** No FP, No 5 <br /> 3/24197 1438 4377 -2939 <500*** <5** <0 8'* <0 5 <0 5 <7** No FP, No S <br /> 5/20/97 1438 4420 -29 82 460 <5** <0 5 <0 5 <0 5 <7** No FP, No S <br /> 8/19/97 1438 4766 -3328 440 <0 5 <0 5 <0 5 <0 5 <5 No FP, No S <br /> 11/19/97 1438 45 95 -31 57 510 22 2 2 0 93 31 <5 No FP, No S <br /> 314/98 1438 4143 -2705 110 066 <0 5 <0 5 <0 5 <5 No FP, No S <br /> 6/26/98 1438 3911 -2473 329 4 75 <0 5 <0 5 <0 5 <5 No FP, No S <br /> 9/1198 1438 4078 -2640 295 <0 5 <0 5 <0 5 <0 5 <5 No FP, No S <br /> 12/2198 1438 38 23 -2385 407 6 89 <0 5 <0 5 0 873 195 No FP, No S <br /> 3131199 1438 3471 -2033 217 6 41 0 948 0 763 2 69 748 No FP, No S <br /> 614/99 1438 35 86 -21 48 288 <0 5 <0 5 <0 5 <0 5 653 No FP, No S <br /> 912199 1438 4026 -2588 152 <0 5 <0 5 <0 5 <0 5 <5 No FP, No S <br /> 11129/99 1438 38 58 -2420 198 358 <0 5 <05 0 61 908 No FP, No S <br /> 3/16100 1438 3469 -2031 270 074 <0 5 <0 5 <0 5 595 No FP, No S <br /> 6126100 1438 3705 -2267 389 <05 <0 5 <0 5 <0 5 <2[2] No FP, No S <br /> 9/28/00 1438 4128 -2690 <50 0 870 <0 5 <0 5 <0 5 <2[2] No FP, No S <br /> 12/19/00 1438 3720 -2282 <50 <0 5 <0 5 <0 5 <0 5 <2 5 No FP, No S <br /> 3/15/01 NM NM NE Well Covered Not observed <br /> 6/20/01 NM 3698 NE 11,000[5] <2[4] <2[4] <2[4] <2[4] <2[2] No FP, No S <br /> 9/12/01 NM NM NE Well Covered Not observed <br /> 12/12/01 NM NM NE Well Covered Not observed <br /> 3113/02 NM NM NE Well Covered Not observed <br /> 6/18/02 NM NM NE Well Covered Not observed <br /> K Mprocess\J5 SP ARC0121301Quarter1y\1 QTR 0312130 GWMR 1Q03 9 of 13 <br />