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LEGEND: <br /> SHALLOW GROUNDWATER MONITOR WELL <br /> DEEPER GROUNDWATER MONITOR WELL <br /> GROUNDWATER EXTRACTION WELL <br /> DESTROYED SVE PILOT TEST WELL <br /> ® DESTROYED SVE WELL <br /> M-1 DESTROYED GROUNDWATER MONITOR WELL <br /> ND<0.50 x� -- <br /> r — FENCE <br /> x'x WHISKY SLOUGH ROAD <br /> W� 2001 Source Area Investigations <br /> Q Hand Auger Borings-Shallow <br /> II Direct Push Borings-Shallow <br /> 111*-ND<0.50 Direct Push Borings-Deep <br /> DISSOLVED BENZENE ISOCONCENTRATION <br /> VEWE /0 p0 CONTOUR LINE <br /> ND<0.50 DISSOLVED BENZENE CONCENTRATION <br /> +1 IN MICROGRAMS PER LITER(ugA)*.N-20 <br /> �VEW-10 ND<0.50 ND NOT DETECTED AT OR ABOVE THE <br /> / LABORATORY REPORTING LIMIT <br /> FORMER NS NOT SAMPLED <br /> I SOIL VAPOR <br /> TREATMENT NOTE: BENZENE CONTOUR LINES <br /> AREA INTERPRETED UTILIZING DATA <br /> N-2� FROM THE FINAL SITE <br /> 2.7 CHARACTERIZATION REPORT <br /> / (CH2MHILL,2002). <br /> ' NOT USED IN CONTOURING,DEEPER WELL <br /> NOT USED IN CONTOURING, <br /> SHALLOW WELL <br /> SAMPLE COLLECTED ON <br /> AGRICULTURAL FIELD JUNE 1,2011 <br /> N-19 <br /> ND<0.50 <br /> 8 V <br /> 0 100 200 <br /> APPROXIMATE SCALE IN FEET <br /> Figure 5 <br /> Dissolved-Phase Benzene <br /> Concentration Map, <br /> September 1, 2011 <br /> Holt Release Site <br /> CH2MHILL <br />