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+� 1117 Lone Palm Avenue <br /> Suite B <br /> f Modesto, CA 95351 <br /> U 209.579.2221 <br /> Fax 209.579.2225 <br /> A S S O C I A T E S I N C . <br /> December 14, 1999 <br /> 54 0001 <br />� . t <br /> Mr. Mike Infurna <br /> San Joaquin County Public Health <br /> Services, Environmental Health Division <br /> 304 E. Weber Street, Third Floor <br /> it <br /> Stockton; CA 95202 <br /> Subject: Workplan for Additional Subsurface Investigation at Inland Paint Company, 117 <br /> West Harding Way, Stockton, California <br /> Dear Mr. Infurna: <br /> ATC Associates Inc. has prepared this workplan .on behalf of Inland Paint Company for <br /> performing an-additional subsurface investigation at the above referenced site. This work is <br /> T-being done at the direction of San Joaquin County Public Health Services, Environmental Health <br /> Division (PHS/EHD.) to attempt to define' the lateral extent of soil and groundwater <br /> contamination at the site. <br /> The scope of work for additional subsurface investigation includes obtaining permits, advancing <br /> two .soil borings and collecting soil samples, installing:one groundwater monitoring well, <br /> developing the well,.collecting:a groundwater sample, laboratory analysis of selected soil and <br /> groundwater samples, and preparing a summary report. The scope of work is described in detail <br /> in the following paragraphs. <br /> SITE LOCATION. <br /> The site is located on the north side of Harding Way and .the east side of Pacific Avenue in <br /> Stockton, California, as shown on Figure 1. The vicinity of the site is primarily a commercial <br /> and residential area. The site is currently occupied by Inland Paint Company. <br /> BACKGROUND <br /> In March 1990, one 1,000-gallon.underground storage-tank (UST) and all associated piping and <br /> dispensing equipment were removed and transported off-site. Laboratory analysis of soil <br /> samples collected from beneath the former 1,000-gallon UST location indicated the presence of <br /> detectable concentrations of ethylbenzene and xylenes. After the tank was removed, the area of <br /> j excavation of the former tank was backfilled. <br /> WAI72951reportslwkp1299.doc" I <br /> t <br />