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i <br /> / MVV_5 <br /> i <br /> PRISCIL i ROOSEVELT <br /> CLEAN G j ELEMENTARY <br /> —— SERV) E SCHOOL <br /> — Overhead Electric Line �, i <br /> OI MW4 <br /> 31 (<0.50) o1 <br /> ml � <br /> �I64SrAfAINSi <br /> ri <br /> 5I <br /> II 500 j <br /> PHONES 1 <br /> r � <br /> — (11,000),5,00 l 1 <br /> \ ———Mw-2 0 1 <br /> MW-I O Q! M4,0 Overhead Etectr tLine <br /> (<Os0) \ VW-41 O MW/2 G�(1a,o0oy — • " M1 <br /> \ vw-v 1 <br /> \ VW-51 i=.300) {4,700) " VW-2r B-2 <br /> VW-6 I 1 {32,000) 1 <br /> 1 \ I DI PENSER VV%3 IMW-8( a50) 1 <br /> \ \ ANDS A$"' MW-300.50) 1 <br /> 1 {140} <br /> 1 Fes\\ RO 1 1 <br /> 1 <br /> 1 � \ M211 VW-7 NKS B"4 1 <br /> 1 \(-0.5) <br /> 1 <br /> \\ <br /> 8-1• \� 1 1� <br /> 1SL, <br /> 1 81}LDtuG —�1 m <br /> 1 GPS4INE` <br /> • r1 1 <br /> 1 MW-1 \ (<0.50) 1 1 <br /> \ a!MW-9 \ �' <br /> x 1 <br /> 1 <br /> \ DIRT <br /> 11 pROX1MP�E P,'OPE L 6Du540 <br /> \1 Pp <br /> LEGEND: +� ` <br /> MW-9 GROUNDWATER MONITORING WELL <br /> Q VW-6 VAPOR EXTRACTION WELL <br /> •B-4 SO4L BORING <br /> 1BE AS-1 AIR SPARGE WELL <br /> (14,000) BENZENE CONCENTRATIONS MEASURED IN PARTS <br /> PER BILLION(PPB) <br /> LINE OF EQUAL CONCENTRATION OF BENZENE <br /> MEASURED IN PPB <br /> * DATA NOT USED FOR CONTOUR CONSTRUCTION <br /> INS) NOT SAMPLED <br /> WELLS SAMPLED:512/02 <br /> - _ - - - - 0 50 FT - <br /> SOURCE:FIGURE MODIFIED FROM DRAWING PROVIDED BY ACTDN.MICKELSON,VAN DAM,INC. i <br /> AND SURVEY BY RON ARCHER CIVIL ENGINEER,INC. APPROXIMATE SCALE <br /> __ HORIZON ENVIRONMENTAL INC. BENZENE ISO-CONCENTRATION FIGURE <br /> MAP <br /> Project Number. 1474,45 Drawn By:M.LaCoste BEACON STATION NO. 12474 3 <br /> Prepared By: C.Rath Date:6121102 3440 EAST MAIN STREET <br /> - Reviewed By:R.Smith Revised Date: STOCKTON,CALIFORNIA <br />