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Table 1 <br /> Cumulative Results of Groundwater Sampling and Analyses <br /> Quik Stop Market No. 132 <br /> ' 2555 West Hammer Lane <br /> Stockton, California <br /> Ethyl- ota Well Depth to Groundwater <br /> ' Date TPH-G Benzene Toluen benzene Xylenes MTBE CO2 Elevation Groundwater Elevation <br /> Sampled (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppm) (ft above MSL) (feet) (ft above MSL) <br /> Well MW-4(Cont) <br /> ' 09/03/97 NR NR NR NR NR NR NR 1052 -691 <br /> 12/04/97 NR NR NR NR NR NR NR 1095 -734 <br /> 03/10/98 NR NR NR NR NR NR NR 7 13 -352 <br /> 06/08/98 <50 <0 50 <0 50 <0 50 <0 50 <5 NR 796 -435 <br /> 09/22/98 1 99 1 <0 50 1 <0 50 <0 50 <0 50 1 <5 1 NR 942 -581 <br /> Well MW-5 <br /> 04/08/91 210 34 <0 50 <0 50 21 338 1420 -10 82 <br /> 07/31/91 I,900 28 85 30 71 1527 -1189 <br /> 09/11/91 1,100 26 19 18 23 1545 -1207 <br /> 10/15/91 4,200 <0 50 33 24 13 1566 -1228 <br /> 12/18/91 1,200 <0 50 1 3 17 06 1566 -1228 <br /> 03/18/92 670 <0 50 <0 50 <0 50 <0 50 1472 -1134 <br /> 05/05/92 610 <0 50 <0 50 <0 50 <0 50 1476 -1138 <br /> 06/16/92 650 29 <0 50 <0 50 <0 50 15 11 -1173 <br /> 09/22/92 310 <0 50 <0 50 063 <0 50 15 59 -1221 <br /> 10/26/92 330 <0 50 1 094 072 NA NA <br /> 12/21/92 350 <050 07 06 07 1779 -1441 <br /> 03/17/93 280 <0 50 <0 50 06 07 1285 -947 <br /> 06/18/93 500 1 <0 50 <0 50 <0 50 1236 -898 <br /> ' 12/17/93 <50 <0 50 <0 50 <0 50 <0 50 132 -982 <br /> 03/25/94 <50 <0 50 <0 50 <0 50 <0 50 1282 -944 <br /> 06/21/94 <50 <0 50 <0 50 <0 50 <0 50 1269 -931 <br /> ' 08/02/94 53 <0 50 <0 50 <0 50 <0 50 1285 -947 <br /> 09/13/94 <50 <0 50 <0 50 <0 50 <0 50 13 14 -976 <br /> 12/09/94 56 <0 50 <0 50 <0 50 <0 50 1374 -1036 <br /> ' 02/22/95 <50 <0 50 <0 50 <0 50 <0 50 12 18 -88 <br /> 03/16/95 <50 <0 50 <0 50 <0 50 <0 50 1137 -799 <br /> 05/26/95 <50 <0 50 <0 50 <0 50 <0 50 NR NR <br /> 06/22/95 <50 <0 50 <0 50 <0 50 <0 50 1136 -798 <br /> 09/26/95 <50 <0 50 <0 50 <0 50 <0 50 790 1235 -897 <br /> 12/21/95 <50 <0 50 <0 50 <0 50 <0 50 750 1224 -886 <br /> ' 03/06/96 <250 <2 50 <2 50 <2 50 <2 50 1,100 670 1067 -729 <br /> 06/04/96 <125 <1 2 <1 2 <1 2 <1 2 660 NR 1025 -687 <br /> 09/17/96 <50 <0 50 <0 50 <0 50 <0 50 510 NR 112 -782 <br /> ' 12/09/96 <50 <0 50 <0 50 <0 50 <0 50 350 NR 1129 -791 <br /> 02/11/97 <50 <0 50 <0 50 <0 50 <0 50 340 NR 875 -537 <br /> 06/09/97 <50 <0 50 <0 50 <0 50 <0 50 220 NR 966 -628 <br /> ' 09/03/97 <50 <0 50 <0 50 <0 50 <0 50 1,100 NR 1034 -696 <br /> 12/04/97 <50 <0 50 <0 50 <0 50 <0 50 880 NR 1075 -737 <br /> 03/10/98 <50 <0 50 <0 50 <0 50 <0 50 1,400 NR 695 -357 <br /> ' 06/08/98 <50 <0 50 <0 50 <0 50 <0 50 1,600 NR 776 -438 <br /> 09/22/98 1 <50 1 <0 50 1 <0 50 1 <0 50 <0 50 2,100 NR 925 -587 <br /> ' ATC PLs1AUMIN TASK%LEHPMAMQUFKSTOP1132gFtlepTABLE I Page 4 of 6 <br />