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G <br /> C <br /> T <br /> CONDOR EARTH TECHNOLOGIES INC. <br /> 188 Frank West Circle <br /> Suite I <br /> Stockton , CA 95206 <br /> (209) 234-0518 <br /> FAX (209) 234-0538 <br /> June 19, 2002 <br /> Jeffrey C . F. Wong <br /> San Joaquin County <br /> Environmental Health Department <br /> 304 E. Weber Avenue, Third Floor <br /> Stockton, California 95202 <br /> Re: Canepa' s Car Wash, 6230 Pacific Avenue, Stockton, CA, Site Code 1225, Condor <br /> Project No. 1707 and Canepa's Car Wash, 248 Park Street, Stockton, CA, Site Code <br /> 1695, Condor Project No. 2038 <br /> Dear Mr. Wong: <br /> Condor Earth Technologies, Inc. (Condor) and Mr. Remo Canepa would like to thank you and <br /> your associates, Ms. Margaret Lagorio and Mr. Nuel Henderson Jr., for meeting with Mr. Canepa <br /> and Condor on June 13 , 2002, regarding the above referenced sites. We believe the meeting was <br /> very constructive and that we are generally in agreement regarding the next steps required at both <br /> sites to move towards closure of the sites . The discussion below presents our understanding of <br /> the outcome of the meeting. <br /> With regard to the Pacific Avenue site: you directed Canepa' s Car Wash to submit a Problem <br /> Assessment Report (PAR) and a Feasibility Study (F'S). You directed the submittal of a PAR <br /> because Condor believes that current data from various site investigation activities indicate that <br /> the lateral and vertical extent of site soil and groundwater contamination has been adequately <br /> investigated. You directed the submittal of a FS because Condor indicated that enhancement of <br /> the currently operating soil vapor extraction (SVE) unit to include air sparging (AS) and <br /> additional SVE wells might serve as a final remedial solution for site clean-up. The FS would <br /> evaluate the cost-effectiveness and technical feasibility of enhanced SVE, AS, and groundwater <br /> pumping and treatment (PT). You mentioned that PT might be a very viable measure at the site <br /> based on the depth of contamination and the high MTBE concentrations still present in the site <br /> source area. As we discussed, ozone injection may also be evaluated. In addition, you indicated <br /> the need for current MTBE concentration data from the existing nine SVE wells at the site. <br /> Based on these discussions, Condor will submit a PAR and FS, under the same cover, and <br /> conduct a SVE well sampling event in the near future . <br /> ENVIRONMENTAL GEOLOGICAL ENGINEERING GEOTECHNICAL <br /> http://www.condorearth ,com <br />