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Work Plan, Excavation and Soil Sampling I.Pril 34, 1989 <br /> ARCO Service Station No. 760, Lodi, California 38048-2W <br /> separate tank pit in the southern portion of the site. The <br /> Generalized Site Plan (Plate P-2) shows the approximate locations <br /> of present and former site features. <br /> A geologist from Applied GeoSystems visited the site on September <br /> ' 7, 1988, to observe removal of the waste-oil tank; subjectively <br /> evaluate soil at the bottom of the tank cavity for the presence <br /> of hydro,:arbon contamination; collect a sample of native soil <br /> from the bottom of the tank cavity; and observe additional <br /> excavation of the waste-oil tank cavity, if necessary (AGS Report <br /> No. 38048-1,, dated November 2, 1988) . Tom Mehringer Construction <br /> _. of Red Bluff, California, removed the tank and excavated soil <br /> from the tank cavity with a backhoe. Following removal of the <br /> tank, the Applied GeoSystems geologis-: noted evidence of soil <br /> contamination at the base cf the tank cavity, including <br /> discernible hydrocarbon odor and visible discoloration of native <br /> soil. Additional excavation was undertaken to remove visib y <br /> contaminated soil. After approximately 4 to 5 cubic yardr, of <br /> t contaminated soil were removed, Applied GeoSystems was directed <br /> by Mr. Harlin Knoll of the San Joaquin Local Health District <br /> (SJLIID) to cease excavation. At that time, visibly contaminated <br /> soil remained at the bottom and in the walls of the cavity. Mr. <br /> Knoll indicated that a soil-remediation work plan would be <br /> �a <br /> 2 <br /> AjoP 1sd GLOO ystemis __ <br />