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TABLE 2 - GROUNTDWATE HEMICAL ANALYTICAL DATA <br /> evron ervice Station #9-1848 <br /> 1257 Yosemite Avenue <br /> J Manteca, California <br /> Ethyl- Total <br /> Sample ID Date TPHg' Benzene' Toluene' benzene' xylenes' Oxygenates Methanol <br /> Collected (ppb) (Ppb) (Ppb) ( b) (ppb) (ppb) ( b) <br /> Bl 8125/97 <50 <0 50 <0 50 <0 50 <0 50 ND <1000 <br /> B2 8/25197 <50 <0 50 <0 50 <0 50 <0 50 ND <1000 <br /> B3 8125197 <50 <0 50 <0 50 <0 50 <0 50 ND <1000 <br /> B4 8125197 <50 <0 50 <0 50 <0 50 <0 50 ND <1000 <br /> Explanation anatton <br /> Analytical Laboratory <br /> TPHg Total Petroleum Hydrocarbons as gasoline Sequoia Analytical (FLAP #1210) <br /> STEX benzene, toluene, ethylbenzene, total xylenes Analvtical Methods <br /> ppb parts per billion TPHglBTEX EPA Method 8015 Modified/8020 <br /> ND = analytes not present above stated Oxygenates EPA Method 8260' <br /> liaut of detection Methanol EPA Method 8015 Modified <br /> i Groundv ater samples were analyzed for TPHg/BT1;X after the 14-day holding period <br /> ' Refer to laboratory reports for other volatile organics listed under EPA Method 8260 <br /> I <br /> 6392 0. • <br />