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MIN-2R <br /> The Transmission Former Arco Gas Station <50 <br /> Shap (Currently a Car <0.50 <br /> Wash Facility) <0.50 MW--2R <br /> <D.50 <br /> 00 <br /> N <0.50 <br /> al <br /> 7E West Ghorter way �. <br /> Of <br /> y <br /> z o Active <br /> Service Station <br /> o Active SHOP L <br /> DRAPERY <br /> _ Service Station � J <br /> 01- VW-4 (h <br /> MW-4RS I L <br /> o <50 28,000 <br /> <0.50 S,SDD <br /> a- SITE VICINITY <0.50 1,200 wo o <br /> I� <br /> Not To Scale <0.50 410 I UST- <br /> 0.85 1,420 <br /> o <br /> }m VW-4 = <br /> W-4RS/ I M 950RD <br /> �€ <br /> Y150 <br /> VW-3S/D I 14 <br /> Ld TRANSMISSION SHOP3000 i/ !VW-3S/D SP-1 $ 1 16 <br /> C) 1943 ; ; VW--2S/D 53 <br /> 4 <br /> 12 � usr � � vsr VW-25/D <br /> 0 39 ® MW-12D (MW-11 D 97,000 <br /> MW-1R MW-1 DI I 5,900 <br /> <50 MW-7S 1,900 <br /> as MW-3R VW-15 0 A MW-81 1,000 <br /> <0.50 14,000 <br /> <50 <0.50 340 51530 <br /> }u <0.50 0.9 440 <br /> <0.502.3 <br /> <0.50 MW-1R 3 5 VW-1 S/D <br /> us <0.50 <br /> a MW-3R ANTICIPATED TREATMENT BOUNDARY <br /> 00 <br /> WEST CHARTER WAY <br /> X ' LEGEND <br /> w PROPOSED SHALLOW WELL SCREENED 35-45 FT. BGS Q BIOSPARGE WELL/POINT (SP-1) <br /> 0 <br /> PROPOSED INTERMEDIATE WELL SCREENED 55-65 FT. BGS © VAPOR MONITORING WELL (VM--1) <br /> ® PROPOSED DEEP WELL SCREENED 75-85 FT, BGS 2,300 TOTAL PETROLEUM HYDROCARBONS AS GASOLINE (1,900 µg/L) <br /> MW-1R Q5 MONITORING WELL, TOTAL DEPTH 50 ft. OR LESS 190 BENZENE (31D µ /L) <br /> 43 ETHYL BENZENE (78 µg/L) <br /> CO--LOCATED VAPOR EXTRACTION WELL 12 TOLUENE (12 µg L) a Sh "' Shaw Environmental, Inc. <br /> VW—1S/D+ (WHERE SHOWN) 39 TOTAL XYLENES (26 µg/L) <br /> DON RODGERS <br /> MW-4RD 1W MONITORING WELL, TOTAL DEPTH 80 ft, TRANSMISSION SHOP <br /> NOTES; 515 WEST CHARTER WAY <br /> A A' STOCKTON, CALIFORNIA <br /> REFER TO FIGURE 5 FOR SCHEMATIC CROSS SECTION DETAILS 1. ANALYTICAL CONCENTRATION SHOWN ARE BASED ON THE FIRST QUARTER <br /> 2008 GROUNDWATER SAMPLING RESULTS. APPROXIMATE FIGURE 4A <br /> — — PROPERTY BOUNDARY 2. AT THE CO—LOCATED VAPOR EXTRACTION WELLS, GROUNDWATER S G A L E <br /> 7. <br /> BIOSPARGI= PILOT TEST AREA <br /> SAMPLES WERE TAKEN FROM THE DEEP WELLS ONLY D 20 40 !FEETINFERRED LOCAL DIRECTION OF GROUNDWATER GRADIENT (DENOTED BY "D") AS SHOWN. <br /> I <br />