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WiM� r � <br /> 240-89 <br /> tDn October 25,1988,the excavation was deepened to approximately 22 feet <br /> below the surface in an attempt to removetheappen <br /> o tamiaedix D)soil. AGS <br /> Performed the sampling (see their report/nOtes in <br /> Approximately 550 to 500 cubic yards of soil was removed during the <br /> excavation of the underground tank area. This sod was sampled by AGS. A <br /> sarnple was taken for every 50 yards and aerated at the site to lower the <br /> }duels to below 104 parts per million for Total petroleurn Hydnararbons. <br /> AGS performed routine sampling of the aerating soil acrd ddcninined which <br /> soil could be removed. The aerated soil was removed to Jackson Road <br /> GS letter <br /> Landfill, Sacramento CountyE). Town,and Country perms and A <br /> and chemical results appendix <br /> 20 S>'lt'E ASSESSMENT <br /> Wickland Oil Company <br /> s� ,1988. EGE)to <br /> perform the necessary site assessment on November 14 <br /> A site visit was conducted by personnel of Wickland Oil Co.and WEGsarY E on <br /> Noveml�`r 15, 1988. That same day WEGE processed the <br /> monitor well, <br /> plan rend permits to perform on site exploratory borings <br /> con,,=ction(see figure 9 and appendix E)• <br /> 21 INVEMGATM M13THODS <br /> WEGM investigative methods consist of: <br /> A. Library research and review of existing evaluations pertinent to <br /> this site. <br /> E. Exploratory borings,physical analysis of soil (dthe drilling <br /> oing <br /> and in the laborat(ry}and monitor well construction, <br /> C. Chemical analysis of soil and water samples analyized by a State <br /> of California Department of Health Services (DHS)Laboratory <br /> (Mclaren Laboratories of Rancho Cordova,CA.). <br /> A- Library Search and Review of Existing Evaluations Concerning This <br /> Site, <br /> A -esruh for literatu - mcer'niing this site has been unidemken and <br /> has been <br /> p-.:.E zni �f✓?. <br /> ed in the intraon under Regional-Gcology_and.Hydrog <br /> and Pre-ViOUSM-O& Ver,-..;communications with Wickland Oil,'Tom the <br /> and <br /> County,and San Joaquin L-ounty Health were needed in order to propose <br /> work plan to initiate this assessment mport. <br /> la. <br />