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Advanced <br /> GeoEnviron mental , Inc , <br /> 09 July 2007 <br /> j AGE-NC Project No. 97-0327 <br /> l <br /> Ms. Vicki McCartney <br /> San Joaquin County Environmental Health Department <br /> 600 East Main Street <br /> Stockton, California 95202 <br /> Subject: Revision to Soil-Gas Vapor Investigation Work Plan <br /> GREWAL'S MARKET <br /> 4100 East Fremont Sreet, Stockton, California <br /> i <br /> Dear Ms. McCartney: - <br /> Advanced GeoEnvironmental,Inc.(AGE)previously submitted Soil-Gas Vapor Investigation Work <br /> Plan (dated 27 February)to the San Joaquin County Environmental Health Department(SJCEHD) <br /> for the above referenced site; the above work plan proposed collection of soil-gas vapor samples <br /> from six(6)separate boring locations(P-13 through P-18).However,a meeting was held at SJCEHD <br /> on 27 June 2007 by representatives of AGE,SJCEHD and Mr.Rick Grewal to discuss the work plan; <br /> thereafter, and it was mutually,decided that two properly placed soil borings would be adequate at <br /> this time to perform a soil-gas vapor study for this site. Therefore,AGE is now proposing to reduce <br /> the number of soil boring locations from six to two(P-13 and P-14); a site plan depicting the revised <br /> soil boring locations is attached with this cover letter. <br /> I If you have any questions or require further information,please contact our office at(209)467-1006. <br /> 1 Sincerely, <br /> Advanced GeoEnvironmental, Inc. Epr0 . <br /> Timothy J ue ar Calvin.F. Lee <br /> Project Geologist Senior Project Ge( lo sF CA�i�t> <br /> j Registered Geologist No. 7327 <br /> Enclosures <br /> cc: Mr. Jim Barton, California Regional Water Quality Control Board-Central Valley Region <br /> J Mr. Rick Grewal. <br /> S3'Shaw kond, Stockton, Califorma 952'15 <br /> Telaphone (209)46'-006 Fax(209)467-1118 <br /> 1 <br /> I <br />