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Mel - <br /> Page 8 of 10 <br /> Groundwater Monitoring Data <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 Top of Screen Level Elevation TPHG Benzene Toluene benzene Xylene MTBE Observations <br /> MW-7 12/04/92 --- 5350 62 51 --- 88 2 0 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-7 01/20/93 14 16 5350 6095 4679 NA NA NA NA NA NA No FP,No S <br /> MW-7 Ol/29/93 --- 53 50 --- --- 67 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-7 03/22/93 1416 5350 5936 -4520 NA NA NA NA NA NA No FP,No S <br /> MW-7 04/06/93 1416 5350 5884 -4468 <50 <6** <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-7 07/30/93 1416 5350 5963 -4547 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-7 11/29/93 14 16 5350 5862 -4446 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-7 03/23/94 14 16 53 50 5365 -3949 130 8 8 11 17 8 3 NA No FP,No S <br /> MW-7 06/22/94 1416 5350 53 88 -3972 <10 <0 3 0 4 <0 3 <0 5 NA No FP,No S <br /> MW-7 09/28/94 14 16 5350 5759 -43 43 <50 12 1 1 <0 5 <0 5 NA No FP,No S - <br /> MW-7 12/01/94 14 16 5350 5665 4249 <50 6 9 3 5 <0 5 3 8 NA No FP,No S <br /> MW-7 02/28/95 1416 5350 5361 -3945 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-7 05/19/95 14 16 5350 5173 -3757 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-7 08/28/95 1416 5350 5351 -3935 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-7 12/07/95 1416 5350 52 10 -3794 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-7 02/05/96 1416 5350 4959 -3542 <50 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-7 05/30/96 14 16 5350 4665 -3249 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-7 09/18/96 14 16 5350 5043 -3627 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-7 11/26/96 1416 53 50 4830 -34 14 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-7 03/24/97 1416 53 50 4320 -2904 <200*** <2** <0 5 <0 5 <0 5 <4** No FP,No S <br /> MW-7 05/20/97 1416 53 50 4381 -2965 <50 <0 5 <0 5 <0 5 <0 5 <3 No FP,No S <br /> MW-7 08/19/97 1416 53 50 4725 -3309 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-7 11/19/97 1416 53 50 4542 -3126 <50 2 6 2 9 0 80 4 5 <5 No FP,No S <br /> MW-7 03/04/98 1416 53 50 4077 -2661 <50 <0 5 <0 5 <0 5 <0 5 <5 No FP,No S <br /> MW-8 11/29/93 1416 5650 5886 -4440 69 <0 5 <0 5 <0 5 <0 5 NA No FP,No S <br /> MW-8 03/23/94 1416 5650 5361 -3945 340 57 66 9 3 42 NA No FP,No S <br /> N IXLS108051114091032698R1 XLS <br /> Sheet I <br /> �LK�tQC� <br /> 05109198 <br />