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a <br /> Ii r. Steve wolf, <br /> December 19, 1986 <br /> Page Two <br /> efilled with clean fill on the 18th of <br /> The xcavations were <br /> November but not paved pending results of the chemical tests. <br /> results an Oak <br /> were received, the two <br /> excavallonssite and <br /> After test The area over the 3000 g <br /> Street wgallenmpanked.Brea were paved over. <br /> the 15u0 g <br /> All City and County inspections y pecompleted eat the me 01 t <br /> rmiitsarecopiedandshowni.n <br /> removal process. City and County p <br /> Appendix A• <br /> RESULTS OF CHEMICAL TESTS ON SOILS <br /> mples from the tank excavation at <br /> As shown in Appendix Or sl sasa amounts .of Total Hydrocarbons at <br /> 229 Ma£fat contained sigmsoil gasoline) and other dissolved <br /> 7652 mg/kg tin the form of <br /> fbkgasol ethylbenzene and toluene- <br /> - <br /> organo-lead, 0. 14 ug/kg- Soil <br /> constituents g ver low <br /> Ethylene dibromide (EDB) was at a Y <br /> samples from <br /> the <br /> 1than iOak treet mg/kgs atethee150Qh9allon tanksite. <br /> values, and was <br /> RECOMMENDATIONS FOR ADDITIONAL SOIL/GROUNDWATER EVALUATIONS <br /> it is <br /> � . After reviewing the results of the chemical testivini <br /> ng, of <br /> } evident that some fuel has entered the soils in BasedciontY our <br /> the gasal#ne tank at" 229 Moffgt he <br /> Street. fuel <br /> ' understanding of the regulations related to bortheings <br /> release Of <br /> Additional soil borings and groundwater <br /> 1 to the submonitor wells are propos ed• Since <br /> groundwater monitoring ve propose that <br /> depths in the area are not precisely knave, <br /> wells not be tnstalled unless soils gest that <br /> groundwater suggest that <br /> encountered at the time entered boring <br /> enggroundwater beneath the <br /> fuels have certainly <br /> d in the <br /> excavation. A portable vapor terterminer will bePlatei2e <br /> ishows the <br /> field to assist in Our fielded de nal mtest borings/wells. <br /> location Of the prop <br /> groundwater samples acquired would be subjected to <br /> Soil and g tests for Total HydrocarbonE, benzene, <br /> additional chemical <br /> ethylbenzene and araano-lead. <br /> toluene, s and chemical <br /> Once the results of these additional nuewithst oanngamended report <br /> tests are complete, we will supply Y It is <br /> of our removal efforts and evaluations of additional data. <br /> possible, based on what we have observed thus far at the site, <br /> e at the <br /> that some treaStreet <br /> tB� ivessarelavailabletaat <br /> to accomplish <br /> site.- Several ernat <br /> - - at - -- - - <br />