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—' Geolo cal Audit Services Inc. <br /> id Environmental Professionals Fid M i:� ALTh <br /> TAL HE <br /> -� 1803W.March Lane,Suite •Stockton,CA9520,pjeP5fi-026At F()X� 9)956-0700 <br /> October 25, 1993 <br /> (GeoAudit 652-S) <br /> Ms. Linda Turkatte <br /> San Joaquin County PHS/EHD <br /> P. O. Box 2009 <br /> Stockton, CA 95201 <br /> Subject: Addendum to Work Plan - Pacific Gas <br /> 2088 Mariposa Road, Stockton, California <br /> Dear Ms. Turkatte: <br /> In the work plan for the installation of groundwater monitoring <br /> wells (September 15, 1993) at the referenced site, GeoAudit stated <br /> that if field screening of soil samples did not indicate <br /> contamination was present in the monitoring wells, one or two soil <br /> borings would be drilled within the tank cavity. <br /> The PHS/EHD has requested that GeoAudit amend the original work <br /> plan as follows: two soil borings will be drilled within the tank <br /> cavity, regardless of whether soil contamination is or is not <br /> present in the monitoring wells. The locations of the proposed soil <br /> borings are indicated on the attached revised site plan. <br /> V & W Drilling will supply the drill rig and two man crew. A <br /> drilling permit application and permit fee are enclosed. If you <br /> have any questions or comments, please contact our office. <br /> Sincerely, <br /> GEOLOGICAL AUDIT SERVICES, INC. <br /> Bob Marty <br /> Project Manager <br /> cc: Mr. Manuel Sanchez - Pacific Gas <br /> Full Spectrum Environmental Services• Hydrogeology <br />