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G eofogwaf Technics Inc. _ 77­ <br /> 2741 Rimr Rwd <br /> Modesto,Ca(ifmnia 95351 •� j <br /> (209)538-6424/jaT#538-5852 <br /> 93 SES 15 N,f-i I I: 54 <br /> September 13, 1999 <br /> Mr. Ron Rowe <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 E. Weber Ave., 3`d Floor <br /> Stockton, CA 95202 <br /> Re: Response to Phone Calls— Sept 13, 1999 <br /> C &B Equipment, 7474 West 11th Street, Tracy, California <br /> Dear Mr.Rowe: <br /> In response to your phone calls September 13, 1999, Geological Technics Inc. has prepared <br /> the following information. <br /> Domestic Well Survey Request Letter: <br /> Comment: You requested that a copy of the letter to Gordon Boggs requesting that a water <br /> well survey be performed around the C&B property be sent to you. <br /> Response: Attached please find the letter Geological Technics sent to Mr. Boggs for his <br /> signature and the address of Mr. Jim Gibboney of DWR for him to send it to. <br /> We also requested a copy of the signed letter be returned to Geological <br /> Technics, but evidently was not returned since we do not have it in our files. <br /> Geophysical Testing: <br /> Comment: You requested that a copy of the geophysical testing results on the soil be <br /> submitted to you as outlined in the work plan. <br /> Response: In the course of preparing the Cost Pre-Approval request, the geophysical <br /> parameter testing was not included. Therefore the testing was not performed. <br /> At this point that data is not needed since the down gradient wells are not <br /> contaminated. If they were contaminated, then the geophysical data could be <br /> used to make basic fate and transport calculations to estimate the downgradient <br /> extent of the plume migration. However, since the plume is defined, the <br /> geophysical data is inconsequential. <br /> Respectfully, <br /> GEOLOGICAL TECHNICS INC. <br /> Raynold L Kablanow 11, Ph.D. <br /> RG/HG/REA <br /> attachments <br /> cc: Mr. Coelho - C&B <br /> 11 Mark List- CRWQCB-CVR <br /> USTCFP - <br />