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Site Background Information - Fernando's Place <br /> AGE-NC Project No. 00-0769 <br /> Page 7 of 7 <br /> and consists of a locally contained layer of sand. Hydrogeologic Unit 5 (HU-5) was <br /> identified at depths between 190 feet and 199 feet bsg and consists of a locally contained <br /> layer of sand. <br /> HYDROCARBON-IMPACTED SOIL AND GROUND WATER <br /> Based on the analytical results of soil samples collected during the August and September <br /> 2002 investigation and previous subsurface investigations, cross sections illustrating the <br /> inferred vertical and horizontal extent of hydrocarbon-impacted soil were constructed: <br /> hydrocarbon-impacted soil appears to be defined vertically, although the lateral extent of <br /> impacted soil is not defined at the site. The most impacted soil was encountered beneath <br /> the former UST locations, to depths as great as 115 feet bsg. <br /> The most highly impacted ground water appears to be located near the former UST <br /> locations. Vertically, hydrocarbon-impacted ground water was detected in each of the <br /> screened intervals of multi-level wells MW-4 through MW-7 (except for MW-6A as of the <br /> 2"d Quarter 2005); only up-gradient multi-level well MW-9 and cross-gradient multi-level <br /> well MW-8 have low to non-detectable concentrations of petroleum hydrocarbon <br /> compounds. <br /> Advanced GeoEnvironmental,Inc. <br />