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Raymond Greer (An Individual) 15634 South Steinegul Road, Escalon, California APN.• 229-120-04 (Private Residence) 1 ' Phase II-Site Assessment Report of Findings 1 ' 1.0 Project Identification This project has been developed to investigate and characterize the levels of contamination that were identified at the location where underground gasoline storage tanks (UST's) were excavated and removed This study consisted of the drilling of one (1) soil boring to an approximate depth of eighty (80) feet below ground level (b g I ) 2.0 Site Description and History The Raymond Greer Property is located in the City of Escalon, San Joaquin County, APN 229-120-04 (Figure 1) The subject site has a physical address known as 15634 South Steinegul Road The subject parcel incorporates approximately 1 35 acres The subject 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 volumetric yield capacities of 550 and a 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 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 Levin Metals 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 (10) feet b g 1 (the 550 gallon UST excavation) and one at twelve (12) feet b g 1 (1,000 gallon UST excavation) It was discovered that the soil sample underneath the 1,000 gallon UST had detectable concentrations of 430 mg/kg Benzene, 69 mg/kg Toluene, 6 0 mg/kg Total Lead and 1,200 mg/kg Total Volatile Petroleum Hydrocarbons The soil sample from beneath the 550 gallon UST tested 10 mg/kg Total Lead All other analytes tested "ND", none detected I