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EXECUTIVE SUMMARY In December 1996,a tank removal team conducted a tank removal and closure program at U-Haul facility L. #709-83 located at 450 North Cherokee Lane in Lodi,California. The objectives of the tank closure program were to remove one 6,000-gallon underground gasoline tank,one 6,000-gallon underground diesel fuel tank, associated piping,and product dispenser;to evaluate the presence or absence of petroleum hydrocarbons in the soil below the underground tank systems;and to close the underground storage tank system in accordance with the requirements of the City of Lodi and the Lodi Fire Department. The underground storage tank closure program involved obtaining tank closure permits from the City of Lodi and the Lodi Fire Department, rinsing, purging, excavating and removing the underground storage tank systems,and backfilling and resurfacing the excavation. Soil samples were collected from below each tank and from the soil stockpiles at the site in accordance with City of Lodi and Lodi Fire Department requirements. Soil samples were transported to a certified independent analytical laboratory and analyzed for the constituents stored in the former tanks. The laboratory analysis indicated that the soil samples collected below the south end of the former diesel fuel tank and the north end of the former gasoline tank did not contain detectable concentrations of TFH or BTEX. The analysis indicated that the soil samples collected below the north end of the former diesel fuel tank and the south end of the former gasoline tank contained varied trace concentrations of TPH and Toluene,Ethylbenzene, and Xylenes,but did not contain concentrations of Benzene or MTBE. The laboratory analysis also indicated that the soil samples collected from the soil stockpile associated with the diesel fuel excavation did not contain detectable concentrations of TPH or BTEX. However,the analysis indicated that one of the soil samples collected from the soil stockpiles associated with the gasoline excavation contained TPH concentrations of 630 and 1,300 parts per million and BTEX concentrations of 0.88, 25, 7.2, and 83 parts per million,respectively. The other soil stockpile sample associated with the gasoline excavation contained trace concentrations of Xylenes and MTBE. Following completion of the soil sampling, the tank excavation was backfilled to within four to six inches of the site grade with imported fill material and a portion of native soil. The soil was compacted in accordance with appropriate standards and the excavation was resurfaced with asphalt to match the surrounding grade level. Approximately 30-50 cubic yards of native soil was left stockpiled on site following the backfilling and resurfacing program. Based on the results of the field observations and laboratory analyses,Amerco Real Estate Company/TJ-Haul International request closure of the site. L i