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1 ' Two soil samples were collected from approximately two feet below each end of the tank. The samples were collected by sub-sampling soil collected by the backhoe bucket from under each end of the tank. No petroleum odor was noted during excavation and sampling. Ground water was not encountered in the tank excavation. ' The samples were transported under chain-of-custody to Enseco-Cal Labs in West Sacramento, an environmental laboratory certified by the California Department of Toxic Substances Control (DTSC). ' Enseco analyzed the samples for constituents according to the guidelines provided by San Joaquin County. The samples were tested for the following constituents of concern: ' • Total Petroleum Hydrocarbons (TPH) as Gasoline and Diesel; ' • Benzene, Toluene, Ethylbenzene, and Xylenes (BTEX), 0 Ethylene Dibromide (EDB), and • Total Lead. The results of the analyses are summarized and presented in Table 3-1. No constituents of concern, with the exception of lead, were detected in either soil sample above the detection limits. The concentrations of lead detected in both samples are consistent with ' background concentrations of lead in area soils Copies of the laboratory report and chain-of-custody forms are contained in Appendix F and Paving The tank excavation was backfilled on the same day that the tank was removed. The soils removed during excavation of the tank were used ' for backfill material. Additional clean fill material was added as needed. As the pit was backfilled, the material was compacted, and the area was then paved with asphalt. Summary of Findings 1 The tank formerly located at Former Tank Site #3 appeared to be in good condition when it was removed. No constituents of concern were found in the soils surrounding the tank, and no ground water was encountered in the tank excavation. The presence of lead in soil 3-4