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i i M <br /> EXPLANAMN <br /> Groundwater monitoring well <br /> 41 Groundwater monitoring LOWER SACRAMENTO ROAD <br /> well (Deep) <br /> A/9/C Total Petroleum Hydrocarbons IDriveway W Driveway <br /> (TPH) as Gasoline/Benzene/ <br /> MTBE concentrations in ppb Milli 6,0001290+1,r2+- <br /> + Analysis by EPA Method 8260 <50/<0 5+/<2+ ) Dispenser <br /> r----_ <br /> Islands MW-7 <br /> Underground L--__—j --------� Z <br /> Storage _ 170/<0 5+/<2+ <br /> L W <br /> L------I — ._ > <br /> Tanks -_ ———- Z <br /> L ——— AC palming O <br /> MW-3 W <br /> 330/18+/6+ W <br /> 0 <br /> W <br /> V <br /> <50/<0 5+/<2+ o <br /> MW4 ®r L <br /> MW-BD <br /> <50/<0 5+/<2+ Station <br /> Budding <br /> MW-5D**lyl W-5 c <br /> _ 1 290/<0 5+/<2+ <50/<0 5+/<2+ <br /> 0 40 <br /> M W-4**MW-aD <br /> Scale in Feet <50/<0 5+/<2+ 8,700/670+/2 <br /> Source Fiqure modified Pram drowinO Drovided bv dated 4-01 <br /> CONCENTRATION MAP nGuRE <br /> GETTLER ' RYAN INC. Chevron Service Station #9-3232 <br /> 6747 Sierra Ct, Suite J 8660 Lower Sacramento Road <br /> Dublin CA 94558 (925) 551-7555 Stockton, California 2 <br /> PROJECT NUMBER REVIEWED BY DATE REVM DATE <br /> 386463 October 24 2002 <br /> ALE NAME Y ENVIRD CNEVRDN 9-3232 QO2-9-3232 DWG I Layout Tab Con4 <br />