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T i <br /> 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 /> Page lof9 <br /> Well Elevation Static Water Groundwater Ethyl- Total <br /> Number Date Top of Casing Top of Screen Level Elevation TPHG Benzene Toluene benzene Xylene MTBE Observations <br /> MW-1 02/28/95 1458 6000 5421 -3963 340 21 <0 5 06 <0 5 NA No FP,No S <br /> MW-1 05/19/95 1458 5241 -3783 210 29 <0 5 07 <0 5 NA No FP,No S <br /> MW-1 08/28/95 1458 5404 -3946 240 32 <0 5 10 <0 5 NA No FP,No S <br /> MW-1 12/07/95 1458 5267 -3809 190 17 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-1 02/05/96 1459 5011 -3553 230 25 <0 5 05 <0 5 NA No FP,No S <br /> MW-1 05/30/96 1458 4717 -3259 180*** 12 <0 5 <0 5 <0 5 <4** No FP,No S <br /> MW-1 09/18/96 1459 5096 -3638 200 16 <0 5 <0 5 <0 5 <5** No FP,No S <br /> MW-1 11/26/96 1458 4880 -3422 220 15 <0 5 <0 5 <0 5 5 No FP,No S <br /> MW-1 03/24/97 1458 4373 -2915 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-1 05/20/97 1458 4432 -2974 230 <7** <0 6** <0 5 05 <5** No FP,No S <br /> MW-1 08/19/97 1458 4778 -3320 200 65 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-1 11/19/97 1458 4595 -3137 170 70 077 <0 5 063 <5 No FP,No S <br /> MW-1 03/04/98 1458 4133 -2675 <50 051 <05 <0 5 <0 5 <5 No FP,No S <br /> MW-1 06/26/98 1458 3913 -2455 248 173 <05 <0 5 <0 5 <5 No FP,No S <br /> MW-1 09/01/98 1458 4089 -2631 249 5 19 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-1 12/02/98 1458 3820 -2362 227 <05 <0 5 <0 5 <0 5 127 No FP,No S <br /> MW-1 03/31/99 1458 3468 -2010 152 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-1 06/04/99 1458 3598 -2140 168 263 <0 5 <05 <0 5 109 No FP,No S <br /> MW-1 09/02/99 1458 4049 -2591 232 104 <05 <0 5 <0 5 <5 No FP,No S <br /> MW-1 11/29/99 1458 3864 -2406 129 <0 5 <0 5 <0 5 <0 5 <25 No FP,No S <br /> MW-1 03/16/00 1458 3466 -2008 552 <0 5 <0 5 <0 5 <0 5 <2 5 No FP,No S <br /> MW-2 02/28/95 1519 6000 5508 -3989 110 <0 5 <05 <0 5 <05 NA No FP,No S <br /> MW-2 05/19/95 1519 5315 -3796 400 23 <0 5 21 <0 5 NA No FP,No S <br /> MW-2 08/28/95 1519 5483 -3964 650 84 <1* 93 11 NA No FP,No S <br /> MW-2 12/07/95 1519 5347 -3828 540 18 <1* 3 <1* NA No FP,No S <br /> MW-2 02/05/96 1519 5193 -3674 310 28 06 13 08 NA No FP,No S <br /> CP1C1ARCHIVEIARC0121301QTRLY12130g100 1T Corporation <br /> 5/2/00 <br />