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i FORMER UNDERGROUND STORAGE TANKS <br /> T1 10,000 GALLON REGULAR UNLEADED GASOLINE TANK <br /> T2 6.000 GALLON REGULAR UNLEADED GASOLINE TANK <br /> + T3 6,000 GALLON REGULAR UNLEADED GASOLINE TANK <br /> T4 6,000 GALLON REGULAR UNLEADED GASOLINE TANK <br /> TS 8,000 GALLON SUPER UNLEADED GNAXNE TANK <br /> i <br /> NEW UNDERGROUND STORAGE TANKS AWN <br /> /i <br /> 76 19A00 GALLON GASOLINE TANK <br /> T7 6,000 GALLON GASOLNE TANK <br /> TS 6,000 GALLON GASOLINE TANK <br /> TS 8,000 GALLON GASOLINE TANK <br /> G <br /> O <br /> SEPTIC TANK } O <br /> LEACHING AREA �O`` 011'1'1-9 0 <br /> A ` �J/* DRY I <br /> .�i/ 11 U VW-11 `�\ VW-5 Qi <br /> r' <br /> ORYQi T1' 220 <br /> '/i/DORY �LL 1.4 <br /> -10 <br /> �`r�T3 <br /> 6 <br /> i <br /> STATION <br /> BUILDING VW-2 i i > <br /> O DR V TS i� VW-6 <br /> RYO DRY"-8 11,0001� <br /> Q ®DRY 170 <br /> OVW�lr� <br /> Q5 MW-g <br /> O' DRY <br /> VW-1 i \ <br /> DRY Q VW-8 MW-4.� \ <br /> DRY JdFFY DRY <br /> i <br /> 01 DRY O VW-14 i� \, <br /> &DRY VW-16 <br /> d Qv DRYOODRY <br /> MW-6 VW-15 <br /> i <br /> MW-7 1. <br /> DRYO DRY !00 <br /> VW-13 1101 <br /> WATER SUPPLY---, <br /> UPPLY i DRY <br /> WELL i VW-17 <br /> / / <br /> <0.50 DRY -2 i� C�� <br /> <0.50 i Mw-1 <br /> . r 170 �rJ + (j)DRY <br /> <0.50 G*�+/ VW-19 <br /> <0.50 fp, <br /> +/+ O <br /> VW-2D QDRY <br /> VW-18 <br /> LEGEND- /+/ ,000� <br /> la MW-1 MONITORING WELL LOCATION(SCREENED IN SAND ZONE 2) <2�0 <br /> ®MW-2 MONITORING WELL LOCATION(SCREENED IN SAND ZONE 1) <br /> O VW-1 VAPOR EXTRACTION WELL LOCATION 0 50 FT <br /> WATER SUPPLYWELL <br /> <50 TPH AS GASOLINE CONCENTRATION IN MICROGRAMS PER LITERµg& <br /> <0_50 BENZENE CONCENTRATION INµg1L SCALE <br /> <0.50 MTBE CONCENTRATION INµglL <br /> FIGURE 3 <br /> [AM FREE TEDPROON GROUNDWATER ANALYTICAL SUMMARY <br /> SAMPLES COLLECTED ON&18IOC186117MXi 2nd QUARTER 2003 <br /> TPHG&BENZENE ANALYZED BY EPA METHOD 80156 <br /> MTBE ANALYZED BY EPA MIETHOD82WB ARCO SERVICE STATION NO.6100 <br /> 25775 SOUTH PATTERSON PASS <br /> TRACY, CA <br /> PROJECT NO. DRAWN 8Y (21 47 U 6100-04-04 JMP 7110103 <br /> FILE NO. PREPARED BY ENVIRONMENTAL,INC. <br /> 6100 <br /> REVISION NO. REVIEWEDBY <br /> 1 <br />