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r <br /> ER4OO ROAD - <br /> wAT BUILDING <br /> �— MW w4 <br /> — (NS) SAS 3 <br /> — — (<0 50) 1 MW-8 <br /> - <br /> - LEGEND <br /> — I I MW9 <br /> — <br /> MW-8 (120) x�(110) � MW 10 GROUNDWATER MONITORING WELL <br /> � <br /> (NS) 1 I AS 2 AS 1! <br /> MW 3 <br /> MW 2 I I (12 000)AS 1! (3 300) 4'VW 11 VAPOR EXTRACTION WELL LOCATION <br /> (NS),VW 11 VW 2 <br /> MW4 [1 4] I DISPEN I (NS)-VW 2 <br /> ISLA S _ 0 AS? AIR SPARGE WELL LOCATION <br /> r-- r---- r ---� <br /> C ) <br /> I <br /> Q 1 ( 0 SO I i i (12 000} BENZENE CONCENTRATIONS MEASURED W PARTS <br /> 1 004 i PER BILLION(PPB) <br /> 01Q <br /> 50 U gERGROUtJD .��50�� LINE OFEQUAL CONCENTRATION OFBENZENE <br /> r Iii I I SJO"GE TA I MEASURED IN PPB <br /> � I <br /> W CANOPY ———— S $� <br /> IL I w } (NS) NOT SAMPLED <br /> a I w 0 s STATION CRETE <br /> � � I r i1a <br /> u. BUILDING i i w WELLS SAMPLED 9112102 <br /> f.1 L____J L____J L____J17 <br /> 2 1 4 (<0 54) (<0 50) (<0 50) O <br /> qO MW 70 —MW1 — -- -- OMW10 <br /> a I r WOOD FENCE <br /> S I (<O 50MW 5� 1 <br /> f I <br /> � I <br /> L_ __ _ _A <br /> WOOD FENCE <br /> 0 30 FT BENZENE ISO-CONCENTRATION <br /> _ HORIZON ENVIRONMENTAL. INC FIGURE <br /> NOT - MAP <br /> APPROXIMATE SCALE L' — <br /> ProlectNumber 141945 Drawn By M LaCoste FORMER BEACON STATION NO 12419 3 <br /> SOURCE FIGURE MODIFIED FROM SURVEY PROVIDED prepared By C Roth Dale 10/25102 2350 WATERLOO ROAD <br /> BY RON ARCHER CIVIL ENGINEER INC Reviewed By R Smith Revised Dale STOCKTON CALIFORNIA <br />