Laserfiche WebLink
GEOMATRIX <br /> • The maximum depth of petroleum-affected groundwater at and downgradient of the <br /> site is estimated to be similar to the vertical extent of petroleum-affected soil, which <br /> is about 80 feet bgs. <br /> JI Based on the results of site investigations and in accordance with the CTA (Geomatrix, 2002b), <br /> Geomatrix recommends the following subsequent investigations at the site. <br /> ` Analyze the fingerprint of the petroleum hydrocarbons detected in the borings <br /> located near the northeast site boundary and downgradient of the site to evaluate the <br /> 1 potential source(s) other than the former pump station. <br /> • Perform off-site investigation to assess the lateral extent of petroleum hydrocarbons <br /> in soil and groundwater downgradient of borings SB-19, SB-20, SB-21, and ASB-4. <br /> �.J <br /> ,J <br /> =l <br /> J <br /> J ' <br /> CAPROJECI15000s15011.00015011-03.doc 21 <br />