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i <br /> GROUND ZERO ANALYSIS, INC. <br /> 1714 Main Street <br /> Escalon, California 95320-1927 <br /> Telephone: (209)838-9888 <br /> Facsimile: (209)838-9883 <br /> 1-01�C����I�D <br /> November 3,2008 <br /> o 5 2008 <br /> James L.L. Barton,P.G. ENVIRONMENT HEALTH <br /> CA Regional Water Quality Control Board, <br /> PERMIT/SERVICES <br /> Central Valley Region <br /> 11020 Sun Center Drive#200 <br /> Rancho Cordova, CA 95670-6114 <br /> Subject: Soil Vapor Extraction Well Destruction Report <br /> 1855 Jackson Avenue, Escalon, CA <br /> Dear Mr. Barton: <br /> Ground Zero Analysis, Inc. (Ground Zero) is submitting this well destruction report documenting <br /> the work performed at 1855 Jackson Avenue in Escalon, California during the fourth quarter of <br /> 2008. The location of the Site is shown on Figure 1 and an aerial view is included as Figure 2. <br /> SITE BACKGROUND <br /> The former Tony Gonzales Trucking facility (Site) is relatively flat and is bounded on the <br /> northeast by Jackson Avenue, to the northwest by a residence, to the southeast by Third Street, <br /> and to the southwest the Escalon Post Office. The Site previously utilized one 10,000-gallon <br /> and one 500-gallon underground storage tank (UST) for the storage of diesel, and one 1,000 <br /> gallon UST for the storage of leaded gasoline. The UST's were removed on March 31, 1988. <br /> Groundwater was not affected as indicated by analytical results. The Site is currently a residence <br /> and has not operated as a fueling facility since 1988. Figure 3 is a site plan showing structure, <br /> street, UST, UST soil sample, soil boring, hydropunch sample, vapor extraction well, soil gas <br /> sample, and subsurface utility locations. <br /> On April 14, 2008, Ground Zero submitted the Groundwater Quality Confirmation and Soil Gas <br /> Investigation Report. In a letter dated April 22, 2008, the California Regional Water Quality <br /> Control Board — Central Valley Region (RWQCB) stated the April 2008 Report was acceptable. <br /> The letter recommended that a formal closure report be prepared and that the report include a list <br /> of all properties and addresses within a 250-foot radius of the Site. <br /> I <br /> On May 19, 2008, a formal closure report (Appendix A) was prepared in accordance to the <br /> Regional Board Appendix .A — Reports, Tri-Regional Board Staff Recommendations for <br /> G:\GROUNDZE\GONZALES\Reports\VEW Destruction Rpt.dob <br /> I <br />