SITE INFORMATION AND CORRESPONDENCE

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WORK PLAN MONITORING WELL ABANDONMENT Pete's Place 9355 West Highway 4 Stockton, California November 1995 1.0. ]INTRODUCTION In accordance with a request from Mr. James Whetsell, Jr. of Pete's Place, has prepared the enclosed Work Plan for Monitoring Well Abandonment for the property at 9355 West Highway 4 in Stockton, California(the site). The location of the site is illustrated in Figure 1. A plan of the site is illustrated in Figure 2. 2.0. BACKGROUND 2.1. SITE LOCATION Pete's Place is located in on the north side of West Highway 4 approximately seven miles west of Stockton, California. The site is located within the San Joaquin Delta:; surrounding land use is agricultural. The property is topographically flat and is located west of the San Joaquin River. One building is located on the property. 2.2. INITIAL INVESTIGATION Two underground storage tanks(USTs)were removed from the site in June 1991. One 12,00,0-gallon regular gasoline UST and one 8,000-gallon unleaded gasoline UST weire .rernoved from the ground by Holt Repair and Manufacturing. Subsequently, Thorpe Oil removed the USTs from the site. Groundwater was encountered during tank removal. The excavation was backfilled with the Ycav?ted soil. FGL Environmental Laboratories sampled both water and soil from the excavation. The samples were analyzed for total petroleum hydrocarbons(TPH as gas), total lead, 'EDB and volatile aromatics (BTE&X). TPH as gasoline was detected in the water sample collected fFom beneath the 12,000- gallon tank at concentrations of 24 mg/1 (parts per million). During the installation of the monitoring well, petroleum hydrocarbons contamination was encountered in soil samples MWl-10, at 0.0054 mg/kg (parts per million),just above the method detection limits. No petroleum hydrocarbons were detected in a ground water sample collected from the well. Therefor, no further action was recommended at the site.