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x <br /> IT CORPORATION <br /> April 17, 1985 <br /> Mr. J. Kelly Williamson <br /> Kayo Oil Company <br /> 1121 East Main Street <br /> Chattanooga, Tennessee 37408 <br /> Dear Mr. Williamson: <br /> SUBJECT: ASSESSMENT OF THE CONTAMINANT PLUME. <br /> Douglas Self-Service Station <br /> 900 South Cherokee Lane <br /> Lodi , California <br /> Store No. 05659 <br /> IT Project No. ME 0004 <br /> This report reformats the data presented in the March 14 and April 8, <br /> 1984 reports. The extent of contamination is presented on five foot <br /> level maps and a crude worse case estimate of the amount of hydrocarbon <br /> in the soils is made. Remedial alternatives that could be applied to <br /> the site are presented with cost estimates and a recommended course of <br /> action is outlined. <br /> Figure i shows the contamination expressed as percent lower explosive <br /> limit values at depths of 5, 10, 15, and 20 feet. Figure 2 shows the <br /> value for Well MW-7 and projects some contamination below MW-3, MW-4, <br /> and MW-6. These three wells had decreasing values with depth but did <br /> not extend completely below the contamination. Figures 1 and 2 indicate <br /> that the contamination is adjacent to the tanks, indicating that the <br /> source of the hydrocarbons is probably the tanks, or spillage when the <br /> tanks were filled. <br /> Regional Office <br /> IT Corporation• 1815 Arnold Drr,e• Martinez Caluornia 94553•415-228-8400 <br />