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... RN56��9 <br /> Working To Restore Nature <br /> 1710 Main Street <br /> Escalon, CA 95320 <br /> REC"als <br /> Phone: (209) 838-3507 Aj <br /> FAX: (209) 838-3509 JAM a 11993 January 19, 1993 <br /> E-NVIRUNMWAL NEAUH <br /> PIRM /Ut a,8 <br /> Ms. Margaret Lagorio <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> P.O. Box 2009 <br /> Stockton, CA 95201 <br /> RE: Healy Property, 9172 Thornton Road, Stockton, California (Figure 1) <br /> Dear Ms. Lagorio; <br /> I <br /> RESNA Industries, Inc. (RESNA) is writing to present a summary report outlining the activities <br /> utilized to assess possible petroleum hydrocarbon contamination of the soil beneath the former <br /> product lines and in the former tank area at the above referenced site. This report also outlines <br /> the previous site investigation (collected from available information). <br /> SITE HISTORY <br /> On September 9, 1987 four underground storage tanks (two waste oil, one unleaded and one <br /> leaded gasoline) were removed under direct supervision of San Joaquin County Environmental <br /> Health Services from the above referenced site. The waste oil tanks were 500 gallon tanks and <br /> the gasoline tanks were 4000 gallon tanks. <br /> f <br /> During tank removal activities one soil sample was collected for laboratory analysis from <br /> beneath each tank. The soil samples collected from beneath the waste oil tanks were analyzed <br /> for benzene, toluene and xylenes (BTX), polychlorinated biphenyls (PCBs), total purgeable <br /> halocarbons ("halogenated volatile organics," HVO) and total volatile petroleum hydrocarbons <br /> (TPH). The sample collected from beneath the leaded gasoline tank was analyzed for BTX, total <br /> lead (TL), ethylene. dibromide (EDB), and TPH. The sample collected from beneath the <br /> unleaded gasoline tank was analyzed for BTX and TPH. <br /> 1,012293.FNL <br />