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IJ* I NC <br /> and Lateral extent of contamination necessary to define the <br /> plume, calculate the volume and type( s) of soils impacted, and <br /> design an appropriate remediation system, it is proposed that <br /> three additional soil borings (EB-4, EB-5, and EB-6) be advanced <br /> at the locations specified in Figure #1 . <br /> Although data acquired to date is limited, the hydraulic <br /> conductivity and porosity of the soils in the area of Baring <br /> #S-3, and the concentrations of contaminants detected within <br /> the soil sample acquired at a depth of twenty feet within #S- <br /> 3, indicate that the area of contamination of soil extends across <br /> approximately one-half of the Togo ' s Restaurant parking lot <br /> between 141 bgs and perhaps 25 feet bgs. . .an area encompassing <br /> in excess of 1 , 100 cubic yards of soil. One may reasonably <br /> contaminated. <br /> project that appa�oximately 40% of these soils could be <br /> A review of applicable remediation technologieso including <br /> excavation, are presented within Appendix "A" . <br /> Should you have further questions at this time, or if we may <br /> otherwise be of assistance, please contact either of the under- <br /> signed at ( 415) 455-4991 . <br /> Sincerely, <br /> Valentin Constantineascu, M.Sc. <br /> Hydrogeologi$t <br /> :;:4 <br /> - f L A. <br /> Michael A. Wop&t, ph.D. <br /> Registered Geologist NO, 4445 <br /> VC/MAW:dr <br /> enc, q <br /> Cc: Mr. Hillman, Grubb & Ellis Company �C <br /> „ 2. <br />