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� Greer Property 15634 Steinegul Road ' Escalon, California ' Findin s Report of g ' Site Characterization ' 1.0 Project Identification Raymond Greer has retained WiF, Inc , Environmental and Engineering Group to ' evaluate the shallow sub-surface layer and groundwater underlying the site at 15634 Stemegul Road, Escalon, California This investigation involved the completion of soul ' borings, the installation of groundwater monitoring wells, and the installation of soil-gas- vapor wells 2.0 Site Location & History ' The property under investigation is located to San Joaquin County, east of Escalon (Figure 1) The subject parcel of land is located in the northwest quarter of Section 26, Township 1 South, Range 9 East of the Escalon Quadrangle, Mount Diablo Base and Mendian The ' subject parcel has a physical address known as 15634 Stemegul Road, Escalon, CA (Figure 2) ' The site is occupied by a residence on the north side and a maintenance shop/garage on the south side of the property Two (2) regular gasoline UST's were once located between the maintenance shop/garage and the residence (Figure 2) The tanks had ' volumetnc yield capacities of 550 and 1,000 gallons On September 15, 1986, a precision test was conducted on the two (2) UST's by ' Precision Industries, Inc The results of the test indicated that the 550-gallon UST failed, while the 1,000-gallon UST passed within the State guidelines On May 15, 1987 both tanks were removed under permit and properly disposed off-site by H&H Ship Service Company to the Levan Metal Corporation disposal site in Richmond, California One soil sample was taken by Precision Industries, Inc , the same day from each of the tank excavations, one at ten feet below ground level and the one at twelve feet below ground level It was discovered that the soil sample underneath the 1,000-gallon UST had detectable levels of Benzene, Toluene, Lead and Total Volatile Petroleum Hydrocarbons