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EXPLANATION <br /> EAST MAIN STREET Groundwater monitoring well <br /> (Shallow) <br /> � Mw-2 <br /> ♦ Former Groundwater monitoring well <br /> \ <50/<0.5/<2 w/o Tank (Deep) <br /> \ Lawn }MW-1 A/B/C Total Petroleum Hydrocarbons <br /> + Trash <50/<0.5/<2 (TPH) as Gasoline/Benzene/ <br /> \ Enclosure MTBE concentrations in ppb <br /> 4-, <br /> Canopy 0 Inaccessible <br /> NOTE: Benzene and MTBE analyses <br /> � <br /> Station <br /> by EPA Method 8260� � Qispenser <br /> \ Building Islands <br /> \ AC <br /> Paving <br /> ti�cy <br /> 1,5001<5127,000—% _ <br /> MW-4 <br /> <50/<0.5/30 <br /> 9 MW-6D UTS <br /> <50 0.512 mw-68 Pad Former f <br /> 4,100/<13/76,000_ l0 Ute,,_ <br /> 601<0.511,300 <br /> MW-5S <br /> \q <br /> MW-5113 MW-7D=: <br /> <50/<0.5/<2 Mw-s <br /> <50/<0.5/<2 <br /> n <br /> - -_ NT <br /> On—Romp <br /> 0 40 <br /> Scale in Feet <br /> Source: Figure modified from drawing provided by Secor Inkemational Inc. <br /> CONCENTRATION MAP nGURE <br /> GE T T L ER - RYAN INC. Chevron Service Station. #9-1452 <br /> 6747 Sierra Ct., Suite J 334 East Main Street 2 <br /> Dublin, CA 94568 (925) 551-7555 Ripon, California <br /> PROJECT NUMBER REVIEWED BY DATE REVISED DATE <br /> 386582 May 11 2004 <br /> FILE NAME: P:\Erviro\Cheyron7g-1452\004-9-1452.DWG I Layout Tab: Cont <br />