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Ask <br /> M> 5 ~ `�0'SaI— 0.501 LEGEND <br /> [0.76] <br /> 4 in sewer line I <br /> SALES -------------------------- --------------; MW-1 Monitoring Well <br /> AREA ® ; Location and Number <br /> VW-3 ? <br /> 13. <br /> VW-2 ® Vapor Extraction Well <br /> 8-1 Soil Boring Location <br /> and Number <br /> \ <br /> FORMER ; SW Sanitary Sewer <br /> UNDERGROUND \ SS Storm Sewer <br /> / B-1 STORAGE <br /> TANK LOCATION 47 , i Benzene Concentration <br /> / 1 4 ; [130] Measured In Micrograms <br /> � <br /> I VW-2 .. . . . . . . . . . . . . � ` I Per Liter <br /> / MW-3 ; Inferred Benzene <br /> VW-1 <br /> ♦ � = .� I h0 Concentration Measured <br /> 1PUMP [130] , _^<< In Micrograms Per Liter <br /> I <br /> I <br /> kANDS <br /> I <br /> 1Li , <br /> \ \ B-2 • / MW-4 <br /> \ / +[44] <br /> —[50] <br /> I � NDRrH <br /> MW-2 \ , —�5] ? "1 <br /> [0.77] <br /> 0 20 ft <br /> Streek Approximate Scale <br /> i <br /> East Frgr�l0n 1 in = 20 ft <br /> _ FIGURE 4 <br /> BENZENE ISOCONCENTRATION CONTOUR MAP <br /> _ (03/25/94) <br /> Beacon Station #494 <br /> 2185 East Fremont Street <br /> Stockton, California <br /> PrbJ—t No. Cra.n by: <br /> 19005.08 LMC Acton • Mickelson a van Dam, Inc. <br /> Consulting Scientists, Engineers, <br /> FL. No. Prepar.d by: and Geologists <br /> 19005F4 WGR 4511 Golden Foothlll Pkwy, #1 <br /> R—Ision Na, R—lewed by: El Dorad Hills, CA 95762 <br /> (916) 939-7550 <br />