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Table 1 <br /> Groundwater Monitoring Data <br /> 1995 to Present <br /> ARCO Service Station No 2130 <br /> 7906 North El Dorado Street, Stockton, California <br /> Page 5 of 9 <br /> Well Elevation Static Water Groundwater Ethyl- "1 otal <br /> Number Date Top of Casing Top of Screen Level Elevation TPHG Benzene Toluene benzene Xylene MTBE Observations <br /> MW-6 02/05/96 1455 5039 -35 84 130 <0 5 <0 5 <05 <0 5 NA No FP,No S <br /> MW-6 05/30/96 1455 4738 -3283 140*** <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-6 09/18/96 1455 5126 -3671 <200*** <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-6 11/26/96 1455 4901 -3446 <200*** <0 5 <0 5 <0 5 <0 5 <4** No FP,No S <br /> MW-6 03/24/97 14 SS 43 97 -2942 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-6 05/20/97 1455 44S2 -2997 180 <2** <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-6 08/19/97 1455 4812 -3357 190 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-6 11/19/97 1455 4626 -3171 95 3 4 21 10 2S <5 No FP,No S <br /> MW-6 03/04/98 1455 4163 -2708 60 16 <0 5 <0 5 <0 S <5 No FP,No S <br /> MW-6 06/26/98 1455 3933 -24 78 101 0 734 <0 5 <05 <0 5 <5 No FP, No S <br /> MW-6 09/01/98 1455 4101 -26 46 205 0 684 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-6 12/02/98 1455 3842 -23 87 124 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-6 03/31/99 1455 3484 -20 29 676 162 <0 5 <0 5 <0 5 <5 No FP, No S <br /> MW-6 06/04/99 1455 3606 -2151 118 177 <0 5 <0 5 <0 5 8 86 No FP, No S <br /> MW-6 09/02/99 14 55 4063 -2608 201 2 84 <0 5 <05 <0 5 141 No FP,No S <br /> MW-6 11/29/99 1455 3878 -24 23 53 0 839 <0 5 <0 5 <0 5 <25 No FP,No S <br /> MW-6 03/16/00 1455 3484 -20 29 <50 <0 5 <0 5 <0 5 <05 <25 No FP,No S <br /> MW-7 02/28/95 1416 5350 5361 -394S <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-7 05/19/95 1416 5173 -3757 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-7 08/28/95 1416 5351 -3935 <50 <0 5 <0 5 <0 5 <0 5 NA No FP, No S <br /> MW-7 12/07/95 1416 5210 -3794 <50 <0 5 <05 <0 5 <0 5 NA No FP,No S <br /> MW-7 02/05/96 1416 4958 -3542 <50 <0 5 <0 5 <05 <0 5 NA No FP,No S <br /> MW-7 05/30/96 1416 4665 -3249 <50 <05 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-7 09/18/96 1416 5043 -3627 <50 <0 5 <05 <0 5 <0 5 <3 No FP,No S <br /> MW-7 11/26/96 1416 4830 -34 14 <50 <0 5 <05 <05 <0 5 <3 No FP, No S <br /> MW-7 03/24/97 1416 4320 -29 04 <200*** <2** <0 5 <0 5 <0 5 <4** No FP,No S <br /> MW-7 05/20/97 1416 4381 -2965 <50 <0 5 <0 5 <0 S <0 5 <3 No FP,No S <br /> CP1C 1ARCHIVE\ARCO121301QTRLY12130g100 1T Corporation <br /> 5/2/00 <br />