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i <br /> I EXPLANATION <br /> X Mw-1a # Groundwater monitoring well <br /> 0 <br /> 1 0 Groundwater recovery well <br /> Wl Vapor extraction well <br /> CL x Abandoned well <br /> Station I X A/B/C TPH(G) (Total Petroleum <br /> <50/ Budding Remediation I a Hydrocarbons as Gasoline)/ <br /> <0 50/ MW-8 Enclosure $ Benzene/MTBE concentrations <br /> <2 0+ 1 <50/ <50/<0 50/<2 0+ <br /> <GZ 0+ -*MW-6 I in ppb <br /> MW-1 <50/<0 50/<2 0+1 NS Not Sampled <br /> 15010 53/<2.0+ vw-1 ♦MWA I + MTBE by EPA Method 8260 <br /> Underground ----I <br /> Storage Tanks --- Kiosk in Vy-5NS 31,000/660/<50+ <br /> —_— "VW-7 <br /> vw 2 DRY 400/27/47+ <br /> <50/<0 50141+ <br /> / <br /> <0 5 /<z 0+ '--VW-3.3 MW-5 I <br /> * <50 0 I(IIXMKW-3 <br /> MW-2 PTW-1 <50/<0 50/18+ <br /> VW-6 * 0 MW-14 <50/<0 501120+ <br /> NS VW4 MW-16MW_7 <br /> <50/<0 50/<2 0+ 17,000/ 4,3001 3 JO/ <50/<0.50/G2 0+ <br /> Dispenser <2ol 38/ / <br /> Islands 330+ 150+ 140+ <br /> PACIFIC AVENUE I <br /> `Z� <br /> I <br /> X <br /> <50 <0 50124+ x 0 60 <br /> r---MW-13 MW-16 MW-12 <br /> Scale In Feet <br /> Source Figure modified from drawing provided by MPDS Services Inc <br /> / CONCENTRATION MAP FIGURE <br /> GFT T LER - RYA X IHC. 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 REVIEWED BY DATE REVISED DATE <br /> 180138 June 26 and 27 2001 <br /> FILE NAME. P ENNRO TOSCO 6981 Q01-6981 DWG I Layout Tab Cont <br />