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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 /> Page 2 of 9 <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-2 05/30/96 1519 4791 -3272 510 31 10 5 9 13 <7** No FP,No S <br /> MW-2 09/18/96 1519 5180 -36 61 920 150 <2 5* 22 3 5 <15* No FP,No S <br /> MW-2 11/26/96 1519 4960 -3441 520 21 <0 5 2 7 0 6 7 No FP,No S <br /> MW-2 03/24/97 1519 4450 -2931 <500*** <3** <3** <3** <3** <20** No FP,No S <br /> MW-2 05/20/97 1519 4509 -29 90 720 71 <1* 13 1 1 <6* No FP,No S <br /> MW-2 08/19/97 1519 4869 -3350 1,200 240 <5 41 <5 <50** No FP,No S <br /> MW-2 11/19/97 1519 4677 -3158 <50 17 089 <0 5 0 87 <5 No FP,No S <br /> MW-2 03/04/98 1519 4218 -2699 <50 2 2 <0 5 <0 5 <0 5 51 No FP,No S <br /> MW-2 06/26/98 1519 39 87 -2468 534 3 65 <0 5 <0 5 112 652 No FP,No S <br /> MW-2 09/01/98 1519 4161 -2642 322 48 4 <0 5 169 167 <5 No FP,No S <br /> MW-2 12/02/98 1519 3894 -23 75 390 <0 5 <0 5 0 735 <0 5 15 8 No FP,No S <br /> MW-2 03/31/99 1519 3538 -20 19 98 7 6 6 069 0 579 233 655 No FP,No S <br /> MW-2 06/04/99 1519 3667 -2148 184 119 <0 5 103 0 669 126 No FP,No S <br /> MW-2 09/02/99 1519 4123 -26 04 4,820 764 <10 375 <10 191 No FP,No S <br /> MW-2 11/29/99 1519 3936 -24 17 791 4 25 <0 5 <0 5 114 654 No FP,No S <br /> MW-2 03/16/00 1519 3539 -20 20 <50 <0 5 <0 5 <0 5 <0 5 289 No FP,No S <br /> MW-3 02/28/95 1610 6000 5588 -3978 73 0 7 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-3 05/19/95 1610 5394 -3784 52*** <05 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-3 08/28/95 1610 5564 -39 54 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-3 12/07/95 1610 5430 -38 20 <50 <0 5 <0 5 <05 <0 5 NA No FP,No S <br /> MW-3 02/05/96 1610 5173 -3563 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-3 05/30/96 1610 4879 -3269 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-3 09/18/96 1610 5273 -36 63 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-3 11/26/96 1610 5041 -3431 <50 19 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-3 03/24/97 1610 4529 -29 19 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-3 05/20/97 1610 45 93 -29 83 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-3 08/19/97 16 10 4956 -3346 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> CM\ARCHIVE�ARC01?1301QTRLY12130g100 IT Corporation <br /> 5/2/00 <br /> I <br />