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GROUND ZERO ANALYSIS, INC. <br /> 1714 Main Street <br /> Escalon, California 95320-1927 nQ <br /> Telephone: (209) 838-9888 LC, L,C If <br /> Facsimile: (209) 838-9883 <br /> APR 15 2002 <br /> April 12,2002 <br /> ENVIRONMENT HEALTH <br /> Mr. Marty Hartzell PERMIT/SERVICES <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> 3443 Routier Road <br /> Sacramento, CA 95827-3098 <br /> Subject: Status of Vapor Extraction Testing and Final Remediation Plan <br /> - on�yZ'onzale`sTruckuig-u;F$357ac ori -venue, s-�on, A- -" `" -""- <br /> Dear Mr.Hartzell: <br /> In response to your letter dated April 3, 2002, Ground Zero Analysis, Inc. (Ground Zero)is writing to provide a <br /> status report on the vapor extraction testing conducted at the site and submittal of a Final Remediation Plan. <br /> All field work related to the vapor extraction testing has been completed. Field work consisted of installing three <br /> vapor extraction test wells (VWla, VWlb, VW2), conducting a short term vapor extraction test, operating the <br /> internal combusion (IC) engine on site for an additional four days, and demobilizing the IC engine and <br /> supplemental propane tank. <br /> The resultant technical summary report is largely complete, with final analysis and recommendations currently <br /> being prepared by Ground Zero staff. The report will be completed and submitted to your office via U.S.mail no <br /> later than April 22,2002. <br /> Please feel free to call me at(209) 838-9888 if you have any questions or comments regarding this submittal. <br /> Respectfully, <br /> Ground Zero Analysis,Inc. <br /> John P. Lane <br /> CA Registered Geologist No. 6795 <br /> JL/cb <br /> cc: Ms.Lori Duncan, San Joaquin County DEH <br /> Ms.Vicki Mello <br /> Mr. Mark Owens, SWRCB,UST Cleanup Fund <br /> G:\Data\GROUNDZE\eonzates\hactze112.doc <br />