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r r� rr r rr �r r r SIM r M M ■r rr r M <br /> Table 2 <br /> Groundwater Sample Analytical Results <br /> Former Unocal Service Station No 5098 <br /> 5606 Pacific Avenue <br /> Stockton, California <br /> Sample Sample Unit TPHg BENZENE n-BUTYL sec-BB 1,2-DCA EB IPB MtBE NAPHT N-PB TOLUENE 1,2,4-TMB 1,3,5-TMB XYLENES METHANOL ETHANOL <br /> ID Date (u /L) (u /L) (u /L) (491L) (491L) (u /L) (u /L) (u /L) (u /L) (u /L) (u /L) (u L) (ug/L) (491L) (ug/L) (u /L) <br /> Monitoring Well Boring <br /> MW-28 07/14/04 B <50 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 30 <0 50 <0 50 30 <50 <5 0 <br /> MW-29 07/14/04 B <50 <0 50 <0 50 <0 01 <0 50 <0 50 <0 50 <0 50 <0 50 <0 50 28 <0 50 <0 50 24 <50 <5 0 <br /> MW-30 07/14/04 B <50 <0 50 <0 50 <0 01 1 6 <0 50 <0 50 <0 50 <0 50 <0 50 24 <0 50 <0 50 19 <50 <5 0 <br /> EXPLANATION <br /> ug/L= Micrograms per Liter TPHg = Total Petroleum Hydrocarbons as Gasoline <br /> --= Not measured or not analyzed B= Benzene <br /> T= Toluene <br /> E= Ethylbenzene <br /> X= Xylenes <br /> MtBE= Methyl tertiary butyl ether,by EPA Method 8260B <br /> 06940-293 1 of 1 ENSR Corporation <br />