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-- Geological Audit Services, Inc. <br /> aw <br /> .6u"3 W rY"arch Lane Suite A •Stockton CA 95207•(209)956 0264• FAX(249)956 0700 �. w <br /> �.. 23 March 1992 _ <br /> GeoAudit CV 4305-1. 3 <br /> Mr. Steve Schneider, REHS <br /> Environmental Health Division <br /> San Joaquin County <br /> 445 N. San Joaquin St. <br /> Stockton, CA 95201 <br /> Subject: Disposal of Contaminated Soil. at Mid-Cal Leasing <br /> 1634 Be Channel St. <br /> Stockton, CA 95245 <br /> Dear Mr. Schneider: <br /> In response to your further inquiry, James Hoblitzell of Falcon <br /> Energy Associates and I have discussed the disposal of contaminated <br /> soil removed during the remediation activities at the referenced <br /> property last year. we believe we have resolved the discrepency of <br /> approximately 270 cubic yards in the amount of soil removed and <br /> transported, as reported in Geological Audit's ^ Final Report <br /> submitted 2 January 1992. <br /> rF In my final report, I enclosed a copy of the disposal contract <br /> between Forward Landfill and Mr. Ed Gote111. This contract was <br /> written on 4 September 1991, before transport of the soil, and was <br /> based on an estimated volume of 450 cubic yards of soil. <br /> Also enclosed with my report was a copy of the invoice submitted to <br /> Falcon Energy by Bob Evans Trucking for the amount of soil that was <br /> actually delivered to Forward. A total of six truckloads, or <br /> approximately 1.50 cubic yards, was taken to Forward. This amount is <br /> within 30 cubic yards of my estimate of 180 yards, as reported in <br /> the Final Report. That estimate was based on the dimensions of the <br /> main part of the excavation (approximately 15 ft x 12 ft x 21 ft = <br /> 140 cubic yards) plus the smaller addition in the northwest corner, <br /> which I estimated to be 5 ft x 10 ft x 22 ft = 40 cubic yards. <br /> It is likely that the estimate of the soil removed in the northwest <br /> corner is somewhat excessive; dimensions of 3 ft x 9 ft x 22 ft <br /> 20 cubic yards are probably more accurate. This would bring the <br /> total to 160 yards, which is close to Evans Trucking' s estimate for <br /> the amount of transported soil. Hence, it is our conclusion that <br /> 150--166 cubic yards of soil were removed and transported to Forward <br /> Landtlll. <br /> I hope this clears up the confusion regarding this matter and the <br /> it will be possible to close this site expeditiously. <br /> �J <br />` F Er iro nnentrfl Swv r~,•t{yorogeology Geotechnical Services <br />