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TREES <br /> y MEDIAN MW B e <br /> ('0 50) <br /> EAST HAMMER LANE <br /> SIDEWALK <br /> — -- -- -- — -- -- -- -- -- -- -- <br /> I PLANTER 1\ \ <br /> I \ <br /> MW-4 1 <br /> PLANTER <br /> (<O 50) <br /> I I <br /> I <br /> I <br /> �S I <br /> S� I <br /> R SO MW 7 <br /> r� i;Ib('0 50) <br /> VW 5a6 S I <br /> ri 40) <br /> ( <br /> I I MWS <br /> MW 2 I('0 50) i MW 1!('O 50} I i YI <br /> ia�('2 0J I I `SW i- _ - 182 11 1 DOD) I zI <br /> I (200) --I I VW 3&4 I I i i <I <br /> vv1 77&&B-- (77- <br /> STATION <br /> BUILDING a I <br /> a <br /> C RETE I <br /> PAD <br /> I m <br /> PLANTER <br /> • I I <br /> I I } <br /> DRIVEWAY ¢ <br /> (TWO WAY TRAFFIC} I j <br /> I Io <br /> Q!MW6 I <br /> (-210) I <br /> v MW 3 <br /> I {e0 50} <br /> I i <br /> I PARKING PARKING <br /> I <br /> I I <br /> APPROXIMATE PROPERTY BOUNDARY <br /> LEGEND <br /> e MW 5 GROUNDWATER MONITORING WELL <br /> (5 500) BENZENE CONCENTRATION MEASURED <br /> ®SW 1 SPARGE WELL IN PARTS PER BILLION(PPB) <br /> MW 1/ GROUNDWATER MONITORING WELL AND —_80-- LINE OF EQUAL CONCENTRATION OF <br /> VW 1&2 VAPOR EXTRACTION WELL BENZENE MEASURED IN PPB <br /> ®VW 3&4 DUAL SOIL VAPOR EXTRACTION WELL LOCATION NA NOT ANALYZED NORTH <br /> (j)VW 5S6 SOIL VAPOR EXTRACTION WELL LOCATION WELLS MEASURED 12!26!02 <br /> •B 3 SOIL BORING LOCATION <br /> CONCENTRATION NOT USED FOR CONTOUR p 40 FT <br /> CONSTRUCTION <br /> SOURCE FIGURE MODIFIED FROM DRAWINGS PROVIDED APPROX SCALE <br /> BY EVAX TECHNOLOGIES INC AND STERIK CO <br /> _. HORIZON ENVIRONMENTAL INC BENZENE ISOCONCENTRATION FIGURE <br /> MAP <br /> Project Number 1641 45 Drawn By M LaCoste BEACON STATION NO 3641 3 <br /> Prepared By C Roth Rate M21103 1210 EAST HAMMER LANE 1` <br /> Reviewed By R Smith Revised Date STOCKTON CA a <br /> l <br />