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KAPREALIAN ENGINEERING, INC. <br /> 62K <br /> E j Consulting Engireer.s <br /> 535 Main Street <br /> Martinez,Ca.94553 <br /> J41 5)372.5444 <br /> K£I-J86-031 <br /> September 8, 1986 <br /> EIIYiR OH hS.Pl7AL OFA1R5 <br /> O,,ERAMHS DEPARTMENT <br /> Mobil Oil Corporation �r1AY 8 }98� <br /> P.O. Box 127 <br /> Richmond, CA 94807 <br /> Attn: Dir. Steve Pao <br /> Re: Mobil Oil Bulk Plant in Tracy, California <br /> Report on Re.ledial Action <br /> ~ Dear Mr. Pao: <br /> Kaprealian Engineering Inc. has completed the remedial <br /> activities at the Mobil-Tracy Bulk Plant located at 500 E. <br /> Grantline Road in Tracy, California.. The remedial action has been <br /> designed to mitigate the potential ii,:p•.cts of fuel spills at the <br /> site on the surrounding soil and shallow groundwater. <br /> The remedial measures for the Mobil Tracy bulk plant <br /> - consisted of removal and disposal .of contaminated ponded water <br /> contained behind ..the loading service area, excavate ftiel stained <br /> soils, placing imported material, removal of 550 gallons tank, <br /> soil sampling, water sampling of theexisting E-2 well adjacent to <br /> the loading servibe area and coordination with the local agency. <br /> KEI involvement in the remedial measure is described in our <br /> proposal dated March 6, 1986. <br /> REMEDIAL MEASURE IMPLEMENTATIODI <br /> The remedial work was initiated on February 27, 1986. A <br /> summary of the activities conducted to date „s presented in <br /> Table 1 Copies of chemical analyses for soil and water- samples <br /> from the certified laboratory are attached. <br /> On Hpril. 4, 1986 stained contaminated soils were removed from <br /> the areas as shown. on the att cii d °sk?tch. The removal of soil <br /> was conducted under the supervision of Mr, R. Crooks of San <br /> Joaquin County Health Department-, Due t6 presence of Mary product <br /> lines, the soils -were. removed. manually to minimize any -accidental <br /> rupture of product lines and fuel spill. The contaminated soil <br /> excavation was .stopped approximately 5 feet below the <br /> groundsurface as no fuel odor was noted at this depth and the soil . <br /> was too dense for manual removal. The general consensus based on <br /> field observations were tAlat no further excavation was necessary. <br /> is <br /> 101 <br />