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+ FORMER UNDERGR ND a-0-RAGETANK5 <br /> T1 10,000 GALLON REGULAR UNLEADED G4SOLNE TANK <br /> T2 6000 GALLON REGULAR UNLEADED GASOLINE TANK <br /> /+ T3 0 OOO GALLON REGULAR UNLEADED GASOLINE TANK <br /> l T4 B ODO GALLON REGULAR UNLEADED GASOLINE TANK <br /> T6 6000 GALLON SUPER UNLEADED GASOLINE TANK <br /> + <br /> CURRENT UNDERGROUND STORAGE TANKS <br /> /+ T6 10 000 GALLON GASCLNE TANK <br /> + T7 6 000 dLLLON GASOLINE TANK <br /> TO 6000 GALLON GASOLINE TANK <br /> T9 8000 GALLON GASOLINE TANK <br /> /+ <br /> SEPTIC TANK O <br /> LEACHING AREA VW-9+� F- <br /> r W VW-3T21 <br /> WS Q <br /> Llw <br /> VW-lo '�STATION BULDING O 8 <br /> • <br /> V WVVVF12 Q•O <br /> VW-4 MW-9 <br /> VW 1 O DRY <br /> •Q MWA <br /> VW" DRY <br /> i MW-5 <br /> VW 70 VW 14 � <br /> l3 O �q3� VW 18 <br /> i <br /> ®MW$ VW 15 <br /> i <br /> i <br /> MW-7 �� MW 15 MW 11 <br /> O DRY i' MVV-14 110,000 <br /> WELL VW13 �' 13 000 <br /> WATER SUPPLY ' ' <br /> �soo <br /> �' �' Opp VV4F17 <br /> �' jjroMW 2 Is I-11 <br /> DRY / 00 L4RhF1 /; <br /> i <br /> arJ <br /> [28 000 <br /> A <120 j /} <br /> 10 VVLL19 <br /> Mw 13 F� <br /> 2000 /+ <br /> 4400 <br /> q c120 /+ <br /> C�e } 4bMVK12 <br /> • ri <br /> 0001Mf 2DG eD1 000 <br /> <500 <br /> LEGEND <br /> �} <br /> MW1 MONITORING WELL LOCATION(SCREENED IN SAND ZONE 2) <br /> ®MW 2 MONITORING WELL LOCATION(SCREENED IN SAND ZONE 1) 0 SD FT <br /> Q VVIF1 VAPOR EXTRACTION WELL LOCATION <br /> VW 15 ABANDONED WELL LOCATION <br /> WATERSUPPLYWEL.L <br /> SCALE <br /> c50 GASOLINE RANGE ORGANICS CONCENTRATION INµg/L <br /> <25 BENZENE CONCENTRATION INy4l. FIGURE <br /> <25 MTSE CONCENTRATION IN pg& GROUNDWATER ANALYTICAL SUMMARY MAP <br /> [NS] NOT SAMPLED DEEPER SCREENED WELLS <br /> SAMPLES COLLECTED ON 6t27J04 2nd QUARTER 2004 <br /> ORO ANALYZED BY EPA METHOD 801513 ARCO SERVICE STATION NO 6100 <br /> BENZENE&MTBE ANALYZED BY EPA METHOD 82MB <br /> 25775 SOUTH PATTERSON PASS <br /> TRACY, CA <br /> PROJECT DRAWN BY ST ffT(JS <br /> U 8100.044-04 .IMPT121104 <br /> FILE NO PREPARED BY ENVIRONMENTAL,INC <br /> 0100 <br /> REVISION NO REVIEWED BY <br /> 1 <br />