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Tre*adwell&R+ollo <br /> Ms. Margaret Lagorio <br /> 9 September 1999 <br /> Page 3 <br /> Background and Current Status: Previously used as an auto repair facility. Buildings exist but <br /> some are vacant. Area is mostly paved with some concrete slabs present. <br /> Characterization/Remediation Status: This site has known petroleum hydrocarbon <br /> contamination and ongoing monitoring (including fifteen groundwater monitoring wells). Some <br /> USTs have been removed from the site, but some may remain around the former Western States <br /> Electric Company facility. A former UST was as containing the solvent TCA. Groundwater <br /> samples collected in February 1999 at indicated the presence of chlorinated solvents around the <br /> location of the TCA tank. <br /> Geophysical Survey: A GS survey was performed to help determine if underground <br /> storage tanks (USTs)or buried sumps remain in selected areas of the site. Anomalies were <br /> encountered in the northeastern portion of the site and will be investigated. <br /> Proposed Soil Investi ag tion: Five Geoprobe borings will be completed, with three soil samples <br /> taken from each boring. <br /> Proposed Groundwater Investigation: Groundwater samples will be taken from two of the <br /> Geoprobe borings. <br /> Area 16 <br /> Name/Address: This site is referred to as the Chase Chevrolet site at 424 North Van Buren <br /> Street (Figure 4). <br /> Facility Status: Buildings exist but most are vacant. Area is mostly paved with some concrete <br /> slabs present. <br /> Characterization/Remediation Status: A soil vapor extraction system has been constructed to <br /> remediate known soil and groundwater contamination from former underground fuel tanks, and <br /> nine groundwater monitoring wells are present. <br /> Geophysical Survey: A GS survey was performed to help determine if USTs or buried sumps <br /> remain in selected areas of the site. No geophysical anomalies were encountered. <br /> Proposed Soil Investigation: Five Geoprobe borings will be advanced,with three soil samples <br /> taken and analyzed per Table 1. <br /> Proposed Groundwater Investigation: If accessible,the nine groundwater monitoring wells will <br /> be sampled. Two groundwater samples will also be obtained from the Geoprobe borings and <br /> analyzed per Table 1. <br />