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.a , <br /> 0 <br /> Mw 10 X Former 9AMANLMN <br /> Former Station <br /> Waste Oil Building Target Shopping Center Parking Lot <br /> � ♦ Groundwater monitoring well <br /> W Tank <br /> I1 0 Groundwater recovery well <br /> _ \ / Re i on 0 Vapor extraction well <br /> eT <br /> i2 $ x Abandoned well <br /> <50/<0 50/<2 0 / <br /> t i 11<50/<0 50/<2 0 A/B/ Y <br /> C Total Petroleum Hydrocarbons <br /> <50/ Mw-s {TPH) as Gasoline/Benzene/ <br /> <0 50/ � MTBE concentrations in ppb <br /> Mw-1 \ VWw-4 <50/<0 50/<2 0 NS Not Sampled <br /> <50/<0.50/<2.0 is '\, / <br /> \ NS/DRY 24,000/170/<f 00 N/A Not Available <br /> Former Undergound s I <50/<0 50/<2 0 Note• Analyses by EPA <br /> MIA Storage Tanks r T �/ <50/<0.50/<2.0 Method 8260 <br /> MW-9 .7 <br /> ` PTW 1 <br /> M -3 N5; Myll.g MW-16 / MW-7 S L L MW-141 <br /> i<50/ LLL <br /> DRY �- _-_ <0 50/� ,MW-11 <br /> <5%.53/<2.0 <2,0 <501— <br /> Former —<0 50/- <br /> <50/<0 50/<2 0 a..�� 4,100/460/49_ — !5_ T <br /> <5% 62/<2 0 o- <br /> J, <br /> PACIFIC AVENUE _ r _ D 60 <br /> 915p, x MW-12 <br /> Scale in Feet <br /> X W-15 Source <br /> Well locationbased upon <br /> osreybyyMorow Surveying <br /> MW-13 <50/<0 50/91 Topography locations <br /> onfield observationsFormer facilities <br /> based upon Unocal Site Plan <br /> INC. <br /> CONCENTRATION MAP FIGURE <br /> GETTLER - RYAN 1 N C. 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 REVIEM BY DATE REVISED DATE <br /> 180138 December 30 and 31 2002 <br /> FILE NAM P ElW1R0 TDSCO 6981 Q62-6981 DWG I Layout Tab Con4 <br /> i <br />