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� MW5 <br /> . PRISCILLA'S a ROOSEVELT <br /> CLEANING ELEMENTARY <br /> SERVICES SCHOOL <br /> ——� Overhead�fecGic Lrne <br /> of MW-4� ---- <br /> } (<0.50) —— <br /> ml <br /> I EASTlq/lVSTREET <br /> r} <br /> m) <br /> 4 <br /> I � <br /> 1 <br /> 1 <br /> R) ES —(12,000) 1 <br /> 1" MW-10 CONCRETE+MW-2�( 3 000), �-- <br /> \(<0.50) r 1 —Overhead Electric Line <br /> VW-4A W-5NW-6 (S,soa)� MW s/ ! — - <br /> 1 (lsoof MW-12 • VW-VVW-2P/W-3 °•." 6�2 1 <br /> N5A00 (29,000)/ 1 <br /> DIISLANDSK MW-8(<0.50) 1 <br /> 1 (55) _ �1; MW-3(<0.50) \ <br /> 1 500 <br /> 50 ROUN 1 1 <br /> 11 ON X50 MW_ 1 7 ANN <br /> KS B-4 Il <br /> 1 O.5zz�tzIt 1) <br /> \ REMEDIATION <br /> APPDXIMATE EXTENT OF B-1 \ TRENCH <br /> BENZENE IN GROUNDWATER , ol <br /> - 1 <br /> 1 gU1LD1�r' _.,rGP5y1N�•r , \ <br /> 1 1 1 <br /> 1 MW-9 ASPHALT \ <br /> (<0.50) 11 \ <br /> -1 1 <br /> DIRT <br /> 11 BOYS`1E��0►�� �� DAA 1 <br /> LEGEND: <br /> MW-9 GROUNDWATER MONITORING WELL <br /> Q VW6 VAPOR EXTRACTION WELL <br /> •B-4 SOIL BORING <br /> 0 AS-1 AIR SPARGE WELL <br /> (29,000) BENZENE CONCENTRATIONS MEASURED IN PARTS <br /> PER BILLION(PPB) <br /> --5.0-- LINE OF EQUAL CONCENTRATION OF BENZENE <br /> MEASURED IN PPB <br /> 0 50 FT <br /> SOURCE:FIGURE MODIFIED FROM DRAWING PROVIDED BY ACTON,MICKELSON.VAN DAM,INC. <br /> AND SURVEY BY RON ARCHER CIVIL ENGINEER,INC, APPROXIMATE SCALE <br /> . � )RIZON ENVIRONMENTAL INC. BENZENE ISO-CONCENTRATION FIGURE <br /> MAP <br /> Project Number: 1474.23 Drawn By:M.LaCoste BEACON STATION NO. 12474 8 <br /> Prepared By: R.Smith Date:3127102 3440 EAST MAIN STREET <br /> Reviewed By:G.Barker Revised Data: STOCKTON.CALIFORNIA <br />