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i ! i <br /> MW-10 x Former <br /> Former Station EXPLANATION <br /> Waste Oil Building Target Shopping Center Parking Lot <br /> = Tank Groundwater monitoring well <br /> 0 Groundwater recovery well <br /> \ Re It I on is Vapor extraction well <br /> <50/<0 50/<2 0 MWS �y su <br /> { � x Abandoned well <br /> i E <br /> <50/<0 50/<2 0 A/B/C Total Petroleum Hydrocarbons <br /> We e (TPH) as Gasoline/Benzene/ <br /> <50/<0 50/<2 0 ♦�� MTBE concentrations in ppb <br /> MW-1 '\r. <br /> <50/<0 50/<2 0 ��+�+-1 W��<50/<0 50/G2 0 * Discontinued from monitoring/ <br /> � � / i sampling program <br /> <0 50/ - DRY 2,100/22/<2 0 <br /> Former Undergound * - ! <50/<0 50/<2 0 Nate All analyses by EPA <br /> 9 Storage Ta}nks Mwis �-7J <50/<0 50/<2 0 method 8260 <br /> Pl'VY-7 / <br /> VW-6 MW-2 MW-16 MW-7 <br /> 4 M -3 fi[MW-14) <br /> t � I l�� LLL ' <br /> . L L <50/<0 50/18- L L L L L <br /> 4111,MW-11 <br /> Former 2,000/290/120 <50/ <br /> <50/<0 50/<2 0 s'penser 390/53/sig- — — — —<0 50/- <br /> <50/<0 50/<2 0 --Wa <50/<0 50/40 — — — —<2.0 - <br /> ..�, PACIFIC AVENUE 0 60 <br /> p F x MW-12 <br /> Scale in Feet <br /> x M W-15 Source <br /> MW-1$ Well locations based upon survey by Morrow Surveying <br /> ��� � � �� <50/<0 50/53 Topogrophy based upon field observations <br /> Farmer facilities based upon Unocai Siie Plan <br /> D CONCENTRATION MAP FlGURE <br /> GE rf[ER - RYAN N 111C. Former Tosco (Unocal) Service Station #6981 <br /> 6747 Sierra Ct, Suite J 4707 Pacific Avenue 2 <br /> Dublin, CA 94568 (925) 551-7555 Stockton, California <br /> PROJECT NUMBER REMnVED BY DATE REVISED DATE <br /> 180138 June 6 and 7 2002 <br /> FILE UWE P Enriro T0SC0 6981 Q02-6981dwg Layout Tab Cont <br />