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3.0 SITE BACKGROUND <br /> The site was used until April 1990 as a warehouse and distribution facility for Coca-Cola <br /> Coca-Cola abandoned the site in April 1990 Presently, the site is unoccupied and consists of <br /> the former warehouse buildings, covered service bays and office building (Figure 2) The site <br /> ' formerly utilized one 1,000-gallon gasoline underground fuel storage tank (UST), and one <br /> 10,000-gallon diesel UST The gasoline UST was reportedly installed in 1937 and the diesel <br /> ' UST was installed in 1978 (USTEC 1991) <br /> ' 331 Tank Removal and Excavation <br /> On April 19, 1990, Crisp Construction of Visalia, California, under the supervision of Quinn <br /> ' and Quinn Enterprises, Inc also of Visalia, excavated and removed one 10,000-gallon <br /> underground diesel tank, one 1,000-gallon underground gasoline tank and associated piping <br /> and fuel dispensers Environmental sampling for the UST removal was conducted by U.S <br /> ' Technical Environmental Consulting, Inc (USTEC, June 1990) The 10,000-gallon tank <br /> showed no visible holes or severe corrosion The 1,000-gallon gasoline tank, however, <br /> showed severe signs of corrosion, and one 112-inch diameter hole was found in the wall of the <br /> tank Rinsate from the tanks was manifested and treated offsite at Refineries Service, Inc of <br /> ' Patterson, California The tanks were transported to Levi's Iron and Metal Company in <br /> Fresno, California to be cut up and recycled The excavated soil was aerated onsite in <br /> ' accordance with San Joaquin County Air Pollution Control District requirements (USTEC, <br /> June 1990) <br /> ' Two soil samples were collected at each end of the diesel tank, and two samples at each end of <br /> the gasoline tank, and submitted for laboratory analysis At the diesel tank, total petroleum <br /> hydrocarbons as diesel (TPHd) were nondetectable in one sample and 32 parts per million <br /> (ppm) in the second sample Total petroleum hydrocarbons as gasoline (TPHg), and the <br /> ' petroleum hydrocarbon constituents benzene, toluene, ethyl benzene, and total xylenes (BTEX) <br /> were nondetectable <br /> ' Two soil samples were collected at each end of the gasoline tank TPHg was detected at 2,000 <br /> ppm in one sample, and 3,600 ppm in the second sample BTEX ranged from 6 6 ppm to 200 <br /> ppm (total xylenes) TPHd was nondetectable in one sample and 180 ppm in the other After <br /> n 10540061reports1CL01 195 doc 2 <br /> 1 <br /> SMTH <br />