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TABLE 4 <br /> t <br /> ANALYTICAL RESULTS OF PUMP-AND-TREAT GROUND WATER SAMPLES - <br /> - TPH-g, TPH-d, BTEX, Fuel Oxygenates and pH <br /> LOCAL FOOD STORE <br /> 2650 Monte Diablo Avenue, Stockton, California <br /> (µg/1) <br /> EPA Method 8015M SW846 8260B 1501 <br /> Sample Date TPH-g TPH-d Benzene Toluene Ethyl Xylenes MTBE TBA DIPE ETBE TAME pH <br /> benzene <br /> Influent 200 1,700* 7 4 <0 5 <0 5 <0 6 160 <5 0 <0 5 <0 5 <0 5 7 140 <br /> 05/22/04 <br /> Effluent <50 <1,000* <0 5 <0 5 <0 5 <0 6 <0 5 <5 0 <0 5 <0 5 <0 5 7 670 <br /> Influent 450 <50 <0 5 <0 5 <0 5 17.1 48 <5 0 <0 5 <0 5 <0 5 7 221 <br /> 08/06/04 <br /> 1Jffluent <50 <50 1 <0 5 <0 5 1 <0 5 <0 6 <0 5 1 <0 5 1 <0 5 <0 5 1 <0 5 1 7 550 <br /> Influent 09/15/04 200 <50 1 <0 5 1 <0 5 <0 5 <0 6 190 1 <5 0 <0 5 <0 5 <0 5 7 115 <br /> Effluent <50 <50 <0 5 <0 5 <0 5 <0 6 <0 5 <5 0 <0 5 <0 5 <0 5 <br /> Notes <br /> µg/1 micrograms per liter <br /> TPH-g/-d Total petroleum hydrocarbons as gasoline/diesel <br /> TRPH Total recoverable petroleum hydrocarbons <br /> MTBE Methyl-tertiary-Butyl Ether <br /> TBA tertiary-Butyl Alcohol <br /> DIPE Di-isopropyl Ether <br /> ETBE Ethyl-tertiary-Butyl Ether <br /> TAME tertiary-Amyl Methyl Ether <br /> pH measured on a unttless 0 to 14 scale <br /> " TRPH by EPA Method 418 1,not analyzed for TPH-d <br /> Advanced CcoEnvtronmcutal,Inc <br />