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LEGEND: <br /> -� SHALLOW GROUNDWATER MONITOR WELL <br /> DEEPER GROUNDWATER MONITOR WELL <br /> GROUNDWATER EXTRACTION WELL <br /> 1 ¢ DESTROYED SVE PILOT TEST WELL <br /> I ® DESTROYED SVE WELL <br /> M-11 JJ -� DESTROYED GROUNDWATER MONITOR WELL <br /> NS � <br /> FENCE <br /> lx WHISKEY SLOUGH ROAD <br /> w'E x 2001 Source Area Investigations <br /> Q Hand Auger Borings-Shallow <br /> y 0 Direct Push Borings-Shallow <br /> -10Y ND<0.50 Direct Push Borings-Deep <br /> VEW <br /> W DISSOLVED BENZENE ISOCONCENTRATION <br /> -\ � /0 p0 CONTOUR LINE <br /> !',1� \ ND<0.50 DISSOLVED MICRO BENZENE <br /> AMS PER LITER CONCENTRATION uNTRATION <br /> I + *4-20 N <br /> -9 VEW-10 ND<0.50 ND NOT DETECTED AT OR ABOVE THE <br /> LABORATORY REPORTING LIMIT <br /> FORMER <br /> NS NOTSAMPLED <br /> I SOIL VAPOR <br /> TREATMENT NOTE: BENZENE CONTOUR LINES <br /> AREA INTERPRETED UTILIZING DATA <br /> N-2f FROM THE FINAL SITE <br /> D<0.50 CHARACTERIZATION REPORT <br /> / (CH2MHILL,2002). <br /> 1 ' NOT USED IN CONTOURING,DEEPER WELL <br /> NOT USED IN CONTOURING, <br /> SHALLOW WELL <br /> SAMPLE COLLECTED ON <br /> AGRICULTURAL FIELD MARCH 21,2011 <br /> N-19 <br /> +ND<0.50 <br /> e ►I <br /> 0 100 200 <br /> APPROXIMATE SCALE IN FEET <br /> Figure 5 <br /> Dissolved-Phase Benzene <br /> Concentration Map, <br /> March 2, 2011 <br /> Holt Release Site <br /> CH2MHILL <br />