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I x x x x x x x x EXPLANATION <br /> I MW-9 Former ♦ Groundwater monitoring well <br /> <50/<50/ * w/0 Tank I <br /> AIB/CID Total Petroleum Hydrocarbons <br /> <0.50/d+ : ';,. I (TPH) as Diesel)/TPH as <br /> 1 JI` Gasoline/Benzene/MTBE <br /> .... Sump Hoist ... <br /> concentrations in ppb <br /> H gui�lding 00 <br /> I + MTBE by EPA Method 8260 <br /> ., <br /> W I <br /> I <br /> Former MW-2 <br /> Dispenser <br /> Islands <50/<50/ <br /> �, ,,,,,,, <br /> Dispenser <0.50/<2.5 <br /> '' <br /> Islands <br /> I MWA I <br /> 1,100/37,000/ <br /> <25/360 <br /> Former USTS1.3 <br /> I ,. Underground <br /> I Storage Tanks <br /> Planter _ _MW-3 +6011601 <br /> Approximate Properly Boundary <0.50/2,200+ Z <br /> 1 <br /> 0 40 <br /> TRACY BOULEVARD <br /> Source: Figure modified from drawing provided by RRM engineering contracting firm Scale in feet <br /> CONCENTRATION MAP ' <br /> E T T L ER - R rA N INC. Chevron Service Station #9-8264 <br /> 6747 Sierra Ct., Suite J 3775 Tracy Boulevard 2 <br /> Dublin, CA 94568 (925) 551-7555 Tracy, California <br /> PROJECT NUMBER REVIEWED BY DATE REVISED DATE <br /> 386854 April 18 2002 <br /> FILE NAME: P:\EnViro\Chevron\9-8264\QD2-9-8264.dwg I Layout Tab: Cont <br />