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I �p� KLEINFELDER <br /> 2 BACKGROUND <br /> A 2,000-gallon underground storage tank was removed from the west side of a building at <br /> 1515 W. Weber Avenue,Stockton (Plate 1) on November 16, 1988. The tenant of this site <br /> is Farmer's Bag and Supply. Santa Fe Pacific Realty Company owns the property. <br /> On November 16, 1988,a soil sample was collected from the bottom of the tank excavation <br /> at a depth of approximately 12 feet below the ground surface. Ground water was <br /> encountered during the sampling, therefore, a sample of the water in the excavation was <br /> collected. The samples were collected and analyzed by FGL Environmental. Chemical <br /> analysis of the soil and water samples detected the presence of benzene, toluene, <br /> ethylbenzene,xylene (BTEX), and total petroleum hydrocarbons (TPH) at concentrations <br /> typically requiring regulatory response. Total lead, which is a constituent of leaded <br /> gasoline,was detected in soil at 6 mg/kg, which appears to be within the range of normal <br /> background soil concentrations. Lead also was detected in the water sample at 2.6 mg/1. <br /> Ethylene dibromide (EDB), another gasoline constituent, was not detected in these <br /> _ samples at or above the laboratory reporting limits. The analytical results for these <br /> samples are included in Appendix A. <br /> Based on these results, EHE Construction, Inc., acting as an agent for the property owner, <br /> contracted with Kleinfelder to assess the extent of contamination. <br /> f <br /> F_ <br /> ry <br /> F15-90-101 2 <br /> Copyright 1990 Kleinfelder, Inc. <br />