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Table 1 <br /> Groundwater Monitoring Data <br /> 1995 to Present <br /> ARCO Service Station No 2130 <br /> 7906 North EI Dorado Street, Stockton, California <br /> Well Elevation Static Water Groundwater Ethyl- Total <br /> Number Date Top of Casing Fop of Sei cen Level Elevation I PI IG Benzene Toluene benzene Xylene M I BL Obser vations <br /> MW-8 02/28/95 14 16 5650 53 54 -3938 <50 <0 5 1 3 <0 5 <0 5 NA No FP,No S <br /> MW-8 05/19/95 14 16 51 66 -3750 55*** <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-8 08/28/95 14 16 5334 -39 18 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-8 12/07/95 14 16 5202 -3786 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-8 02/05/96 NO I SAMPLED"' No FP,No S <br /> MW-8 05/30/96 NOI SAMPLEDI'1 No FP,No S <br /> MW-8 07/28/96 WLLI DES IROYLD <br /> MW-10 02/28/95 1438 53 00 5424 -3986 300 0 9 <0 5 <0 5 <0 5 NA No 1 P,No S <br /> MW-10 05/19/95 1438 5232 -3794 370 0 9 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-10 08/28/95 1438 53 70 -3932 420 1 2 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-10 12/07/95 1438 5261 -38 23 490 0 7 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-10 02/05/96 1438 50 13 -35 75 350 0 7 <0 5 <0 5 <0 5 NA No F1',No S <br /> MW-10 05/30/96 1438 4709 -3271 350*** <6** <0 5 <0 5 <0 5 <6** No FP,No S <br /> MW-10 09/18/96 1438 5084 -3646 510 <15** 10 <0 5 <0 5 <9** No FP,No S <br /> MW-10 11/26/96 1438 4872 -3434 <600*** <0 5 <0 5 <0 5 <0 5 <10** No FP,No S <br /> MW-10 03/24/97 1438 4377 -2939 <500*** <5** <0 8** <0 5 <0 5 <7** No FP,No S <br /> MW-10 05/20/97 1438 4420 -29 82 460 <5** <0 5 <0 5 <0 5 <7** No FP,No S <br /> MW-10 08/19/97 1438 4766 -3328 440 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-10 11/19/97 1438 45 95 -31 57 510 2 2 2 2 093 3 1 <5 No FP,No S <br /> MW-10 03/04/98 1438 4143 -2705 110 066 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-10 06/26/98 1438 39 11 -2473 329 4 75 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-10 09/01/98 1438 4078 -2640 295 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-10 12/02/98 1438 38 23 -23 85 407 6 89 <0 5 <0 5 0 873 195 No FP,No S <br /> MW-10 03/31/99 1438 3471 -2033 217 641 0 948 0 763 2 69 748 No FP,No S <br /> MW-10 06/04/99 1438 35 86 -2148 288 <0 5 <0 5 <0 5 <0 5 6 53 No FP,No S <br /> MW-10 09/02/99 1438 4026 -2588 152 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-10 11/29/99 1438 3858 -2420 198 3 58 <0 5 <0 5 0 61 9 08 No FP,No S <br /> MW-10 03/16/00 1438 3469 -2031 270 074 <0 5 <0 5 <0 5 595 No FP,No S <br /> MW-10 06/26/00 1438 3705 -2267 389 <0 5 <0 5 <0 5 <0 5 <2i21 No FP,No S <br /> C lARM21301QTRLY12130g200 xis Delta <br /> Page 8 of 10 9/19100 <br />