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EXPLANAMN <br /> * Groundwater monitoring well <br /> *MW-6 <br /> A/B/C TPH(G) (Total Petroleum <50.0/<0.500/<2.50 <br /> Hydrocarbons as Gasoline)/ <br /> Benzene/MTBE concentrations <br /> in ppb ` <br /> Former underground <br /> Storage tanks <br /> <50.0/<0.500/<2.50 Used oil <br /> MW-1 Tank <br /> I u <br /> Mw-4 <br /> SrAIMN 54.9/<0.500/<2.50 <br /> b I Mw-9 <br /> 59,700/6,070/<10250L_ <br /> I L=i <br /> L-_-i <50.0/<0.500/<2.50 <br /> <50.0/1.92/<2.50 r-�'-nMw <br /> -s <br /> *MW-z -------- € <br /> MW-7 <br /> 67.11<25.0 Present underground <br /> 1,180/ Storage tanks <br /> SOUTH CENTER ST. <br /> MW-8 Z <br /> <50.0/<0.500/<2.50 0 <br /> z —=7� <br /> I <br /> MW-S C 0 60 <br /> 273/<0.500/<2.50 <br /> Source: F ure modified from drawing DrovkW byRRIi erminmdna conhdrmfirm Scale in Feet <br /> G@tt'l@l - Ryan Inc. CONCENTRATION IAP FlGURE <br /> Chevron Service Station #9-4557 <br /> 6747 slerra CL, Sub J 139 South Center Street <br /> Dublin, a 94568 (925) 551-7W Stockton, California 2 <br /> PROJECT NUMBER REVIEWED FY DATE REVISED DATE <br /> 386843 May 17 2000 <br /> FILE WE P: ENVIRQ CHEVRON 9-0557 QO0-9 layout ab: Cont <br />