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i� <br /> r, <br /> C <br /> E <br /> T - h <br /> CONDOR EARTH TECHNOLOGIES INC. <br /> 1125 No. Golden Slate Blvd . 21663 Brian Lane <br /> Suite H P.O. Box 3905 <br /> December 16, 1997 P.O. Box 3448 Sonora, CA 95370 <br /> Turlock, CA 95381 (209) 532-0361 <br /> (209) 668.9234 FAX (209) 532-0773 <br /> FAX (209) 668-9248 <br /> Mr. Ronald Rowe <br /> San Joaquin County <br /> Public Health Services <br /> Environmental Health Department <br /> P. O . Box 388 <br /> Stockton, CA 95201 -0388 <br /> Re : Canepa' s Car Wash, 6230 Pacific Ave. , Stockton, Calif. <br /> Dear Mr. Rowe: <br /> The purpose of this letter is to provide the information that you requested on December 11 , <br /> 1997, and to document Condor' s and the San Joaquin County Heath Services Department' s <br /> position regarding the State Water Resources Control Board' s, Pre-Approval of Corrective <br /> Action Costs letter, dated October 23 , 1997, for the Canepa' s Car Wash site. <br /> The information that your requested is to help provide an understanding of the subsurface <br /> contaminant level at the Canepa site. <br /> Enclosed are : <br /> 1 . A portion of a report WHF Environmental ' s Tank Removal/Over Excavation Report, <br /> Unknown Date. The document shows piping and over excavation sampling locations, <br /> and corresponding analytical results. <br /> 2 . Figures 3 through 8 . From Report - Soil Vapor Extraction (SVE) System <br /> Evaluation, by Condor Earth Technologies, Inc ., dated September 23 , 1996. <br /> The figures shows how the mass volume of hydrocarbon in the soil was <br /> estimated. <br /> 3 . Soil boring log B- 1 with with associated laboratory data summary sheet and a <br /> typical SVE well construction diagram. From Soil Vapor Extraction - Status <br /> Report, by WHF, dated January 26, 1996 , <br /> ENVIRONMENTAL GEOLOGICAL ENGINEERING GEOTECHNICAL <br />