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/4 <br /> �a <br /> a/ <br /> SEPTIC TANK <br /> I s <br /> LEACHING AREA ± i }� O• VW 9 <br /> 1 f <br /> zW V WS O B-13 <br /> W. B-7 V J <br /> Q ,JT1 •B3 <br /> VW 101 <br /> '/ • .'` /T6 <br /> • \�/� T7 88fW032] <br /> STATION � <br /> BULDING VW2 B-38' <br /> 11]Q• •e 5 TB <br /> + <br /> [00,541 < //i ig / VW-60 <br /> V / <br /> � - VW12{�` <br /> B- Mw9 �, 10481 \` <br /> VW [45] tB.33 <br /> l \ E <br /> �VW-8 MW4 \ •� I <br /> • 1 [1 0] I �� /_[fl 19] feu\4 \��095] <br /> ! 1 B-37 /� S /� ♦ MWS <br /> W7 <br /> I V -70iVW14-� �Grl [0 0441 VW-16 ,/ <br /> B-[34•] Y Mw 6 vw is - \\♦ <br /> � I <br /> mw <br /> VW 13 <br /> WATER SUPPLY r / / B-35 2 ��D y ` L-�PCJ" VW 17 \♦ / <br /> WELL B-19' / l 4 3 / / N" <br /> / MW.3 <br /> \icy/ II / <br /> -� *CjO�\ MW1 ; + <br /> ♦/+/ <br /> VW 19 <br /> voG <br /> � 1 <br /> /+ Q <br /> � 0• 101261 <br /> /* 1D ] VW 18I <br /> LEGEND <br /> MW-1 MONITORING WELL LOCATION <br /> Q VW 1 VAPOR EXTRACTION WELL LOCATION 0 50 Fr <br /> WATER SUPPLY WELL <br /> • B-16 BORING LOCATION <br /> 110 005] BENZENE IN maKp <br /> SCALE <br /> ED ON <br /> RADIUSPOI STUDY OF INFLUENCE <br /> DUUCTEDBYRESNA(OCT 1991) FIGURE 20 <br /> BENZENE CONCENTRATION CONTOURS FOR <br /> WELLS SCREENED AT DEPTHS RANGING FROM 55-68 FT BGS SOIL SAMPLES TAKEN BETWEEN>55-65' <br /> 1 VW 7(PLUMBED) 10 MM4(PLUMBED) ARCO SERVICE STATION NO 6100 <br /> 2 VW 8(PLUMBED) 11 Mme(PLUMBED) <br /> 3 VW 9(PLUMBED) 25775 SOUTH PATTERSON PASS <br /> 4 VW 13(PLUMBED) TRACY, CA <br /> 5 VW 15 <br /> 6 VW 18 PROJECT NO DRAWN BY <br /> 7 VW 19 U6100-1&9 JMP61271p3 <br /> 8 VW FILE NO PREPARED BY ENVIRONMENTAL INC <br /> 9 MW 2(PLUMBED) 6100 <br /> REVISION NO REVIEWED BY <br /> 1 <br />