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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 /> 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 ms]) (feet b s) (feet bgs) (feet msl) t L pg/L gglL gg1L ggll- Observations <br /> MW-7 02/28/95 14 16 5350 53 61 -3945 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-7 05/19/95 14 16 51 73 -3757 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-7 08/28/95 14 16 53 51 -3935 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-7 12/07/95 1416 52 10 -3794 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-7 02/05/96 1416 4958 -3542 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-7 05/30/96 1416 4665 -3249 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-7 09/18/96 1416 5043 -3627 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-7 11/26/96 14 16 4830 -3414 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-7 03/24/97 14 16 43 20 -2904 <200*** <2** <0 5 <0 5 <0 5 <4** No FP,No S <br /> MW-7 05/20/97 14 16 4381 -2965 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-7 08/19/97 14 16 4725 -3309 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-7 11/19/97 14 16 4542 -31 26 <50 2 6 2 9 080 4 5 <5 No FP,No S <br /> MW-7 03/04/98 14 16 4077 -2661 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-7 06/26/98 14 16 3857 -2441 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-7 09/01/98 14 16 4042 -2626 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-7 12/02/98 1416 3770 -2354 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-7 03/31/99 14 16 3416 -2000 <50 1 11 106 0 932 273 <5 No FP,No S <br /> MW-7 06/04/99 14 16 3549 -21 33 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-7 09/02/99 1416 4002 -2596 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-7 11/29/99 1416 38 21 -2405 <50 <0 5 <0 5 <0 5 <0 5 <2 5 No FP,No S <br /> MW-7 03/16/00 14 16 34 14 -1999 <50 <0 5 <0 5 <0 5 <0 5 <2 5 No FP,No S <br /> MW-7 06/26/00 1416 3678 -2262 <50 <0 5 <0 5 <0 5 <0 5 <2[2] No FP,No S <br /> MW-7 09/28/00 14 16 41 02 -2686 <50 <0 5 <0 5 <0 5 <0 5 <2[2] No FP,No S <br /> PAVILION\MyDocumentslARC0121301QTRLY1200012130Q300 Delta <br /> Page 7 of 10 11/22100 <br /> f <br />