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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- otal Well Depth to Groundwater <br /> Date TPH-G Benzene Toluene benzene Xylenes MTBE CO2 Elevation Groundwater Elevation <br /> Sampled (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppm) i(ftaboveMSL) (feet) (ft above MSL) <br /> Well MW-6(Cont.) <br /> 06/09/97 NR NR NR NR NR NR NR 989 -631 <br /> 09/03/97 NR NR NR NR NR NR NR 1058 -700 <br /> 12/04/97 NR NR NR NR NR NR NR 1097 -739 <br /> 03/10/98 NR NR NR NR NR NR NR 7 19 -361 <br /> 06/08/98 <50 <0 50 <0 50 <0 50 <0 50 <5 NR 795 -437 <br /> ' 09/22/98 <50 <0 50 <0 50 <0 50 <0 50 <5 NR 946 -588 <br /> Well MW-7 <br /> 12/21/92 <50 <0 50 <0 50 <0 50 <0 50 322 16 02 -128 <br /> 03/17/93 <50 <0 50 <0 50 <0 50 <0 50 133 -1008 <br /> ' 06/18/93 <50 <0 50 <0 50 <0 50 <0 50 1267 -945 <br /> 09/23/93 <50 <0 50 <0 50 <0 50 <0 50 13 75 -1053 <br /> 12/17/93 <50 <0 50 <0 50 <0 50 <0 50 13 52 -103 <br /> ' 03/25/94 <50 <0 50 <0 50 <0 50 <0 50 1325 -1003 <br /> 06/21/94 <50 <0 50 <0 50 <0 50 <0 50 1321 -999 <br /> 09/13/94 <50 <0 50 <0 50 <0 50 <0 50 1365 -1043 <br /> 12/09/94 <50 <0 50 <0 50 <0 50 <0 50 1402 -108 <br /> 03/16/95 <50 <0 50 <0 50 <0 50 <0 50 1 16 -838 <br /> 06/22/95 <50 <0 50 <0 50 <0 50 <0 50 1 18 -858 <br /> ' 09/26/95 <50 <0 50 <0 50 <0 50 <0 50 740 1265 -943 <br /> 12/21/95 <50 <0 50 <0 50 <0 50 <0 50 700 1255 -933 <br /> 03/06/96 <50 <0 50 <0 50 <0 50 <0 50 <2 5 690 1082 -76 <br /> ' 06/04/96 <50 <0 50 <0 50 <0 50 <0 50 <2 5 NR 1057 -735 <br /> 09/17/96 <50 <0 50 <0 50 <0 50 <0 50 <2 5 NR 1153 -8 31 <br /> 12/09/96 <50 <0 50 <0 50 <0 50 <0 50 <2 5 NR 1142 -8 2 <br /> 02/11/97 <50 <0 50 <0 50 <0 50 <0 50 <2 5 NR 9 -578 <br /> ' 06/09/97 NR NR NR NR NR NR NR 987 -665 <br /> 09/03/97 NR NR NR NR NR NR NR 1056 -734 <br /> ' 12/04/97 NR NR NR NR NR NR NR 1084 -762 <br /> 03/10/98 NR NR NR NR NR NR NR 711 -389 <br /> 06/08/98 <50 <0 50 <0 50 <0 50 <0 50 <5 NR 773 -451 <br /> ' 09/22/98 <50 <0 50 <0 50 <0 50 <0 50 <5 NR L28 -606 <br /> Notes <br /> PH-G denotes total petroleum hydrocarbons as gasoline <br /> MTBE denotes methyl-tert-butyl ether <br /> R denotes analysis not requested <br /> ' ppb denotes parts per billion(µg/L) <br /> ppm denotes parts per million(mg/1) <br /> A denotes not available <br /> denotes not detected above listed detection limit for the method <br /> ft denotes feet <br /> MSL denotes mean sea level <br /> CO2 denotes carbon dioxide <br /> ATC PLSWDMIN TA5KILEHRMAMQUIKSTOP1132IFile]1TABLE I Page 6 of 6 <br />