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SOURCE:FIGURE MODIFIED FROM DRAWING PROVIDED BY <br /> ACTON,MICKELSON.VAN DAM,INC.AND SURVEY <br /> BY RON ARCHER CIVIL ENGINEER,INC. <br /> MW-5 <br /> m <br /> a <br /> PRISCILLA'S 'C ROOSEVELT <br /> CLEANING ELEMENTARY <br /> SERVICES SCHOOL <br /> __T__ Ovemead Eiectric Line <br /> I MW-4� ---211 (<0.50) <br /> — <br /> fi) <br /> m <br /> II EASrAWN SMEEr <br /> �I <br /> l <br /> S <br /> l <br /> PHONES <br /> ' ( 1 <br /> 1 <br /> (9,900) 1 <br /> MW-10 _ _ y MW-2' 1 - <br /> �1 <br /> {a0.50)� –��(13,000)_ – _—Overhead Electric Line(1 T C•J MW-14 i MW-6 VW-V(31,000) <br /> ' 1 — — <br /> {NS)VW-41 1 <br /> {4,7001 � VW-2f(NS) <br /> 1 (NS)vW-6 � �pD VW-3(NS) +B: 1 1 <br /> 1 \ DI <br /> \ 15LAND5 i AS-1 ���SMW-8(<0.50) 1 <br /> 1 \ + !21) �'+ i6MW-3(<0.50) <br /> _ 1 <br /> •B3 1 1 <br /> • 1 \\ 5� + 0 + 1 <br /> ' 4u ERG tOUND + 1 <br /> 1 ♦ O�----+ ORAGE TANG <br /> 1 MW-11 VW-7 r—`1,� .9-4 1 <br /> - 1 e(0.71) O f; _�'; 1 REMEDIATION 1 <br /> TRENCH 1 <br /> 1 ♦ + 1 <br /> � + 1 <br /> 1 B-1. <br /> \ <br /> 1 ♦ 1 1 <br /> 1 ♦ S7p,Z1011 <br /> 1 �GA'LSNE 1 11 <br /> 1 L ` <br /> 1 MW-1 50) <br /> MW-7 <br /> M 1 1 <br /> W-9 <br /> 1 00.50) REMEDIATION \♦ _x�x—� L 1 <br /> COMPOUND <br /> _ 1 1 <br /> LEGEND: 1 <br /> 1, x x r 4_ 94 etV� 1 <br /> MW-9 GROUNDWATER MONITORING WELL <br /> Q VW-6 VAPOR EXTRACTION WELL <br /> 1 <br /> •Ba SOIL BORING 1 1 <br /> le( AS-1 AIR SPARGE WELL, 1 DIRT J <br /> (31,000) BENZENE CONCENTRATIONS MEASURE �O ( l <br /> IN PARTS PER BILLION{PP8) � o o <br /> __5,0__ LINE OF EQUAL CONCENTRATION OF 1 pst0 � <br /> AS <br /> BENZENE MEASURED IN PPB 107C5M <br /> 1 <br /> 'NOT USED FOR CONTOUR CONSTRUCTION 1 r <br /> WELLS SAMPLED:8/30102 0 40 FT <br /> APPROXIMATE SCALE <br /> HORIZON ENVIRONMENTAL INC- BENZENE ISO-CONCENTRATION FIGURE <br /> MAP <br /> Project Number: 1474.45 Drawn By:W LaCoste BEACON STATION NO. 12474 3 <br /> Prepared By: C.Roth Date:10!18!02 3440 EAST MAIN STREET <br /> Reviewed By:R.Smith Revised Date: STOCKTON,CALIFORNIA <br />