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MWIIIIIIIIIIII M M = = = <br /> 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 /> Sample Date TPH-G Benzene Toluene Ethyl- Total MTBE CO2 Well Depth to Groundwater <br /> Number Sampled (ppb) (ppb) (ppb) benzene Xylenes (ppb) (ppm) Elevation Groundwater Elevation <br /> (ppb) (ppb) (ft above (feet) (ft above <br /> MSL) MSL) <br /> MW-7 03/16/95 <50 <0 50 <0 50 <0 50 <0 50 322 1160 -838 <br /> (continued) 06/22/95 <50 <0 50 <0 50 <0 50 <0 50 1180 -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 10 82 -7 60 <br /> Notes <br /> TPH-G denotes total petroleum hydrocarbons as gasoline <br /> MTSE denotes methyl-tert-buy ether <br /> NR denotes analysis not requested <br /> ppb denotes parts per billion(41L) <br /> ppm denotes parts per million(mg1l) <br /> NA denotes data not available <br /> s denotes not detected above listed detection limit for the method <br /> ft denotes Feet <br /> MSL denotes mean Sea Level <br /> Co=denotes carbon dioxide <br /> Sample nmber In bold font denotes quart"groundwater sampling <br /> Sample number In nonbold font denotes groundwater sampling before and after quarterly pumping of Monitoring Well MW-5 <br /> • <br /> ryrye 9 of 9 <br /> MV%W 104 273XQUIK 132 TO [23 Apr 991 Page <br />