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1 Y <br /> Advanced <br /> Geo Environmental ,, Inc . -o <br /> 07 December 2010 c <br /> AGE-NC Project No. 08-1598 RECEIVE® <br /> DEC 15 2010 <br /> Mr. John Trinkle <br /> 24551 Kasson Road ENVIR9NMLNTAL HEALTH <br /> Tracy, California 95304 PERMIT/SERVICES <br /> Subject: Well Destruction Report <br /> TRINKLE & BOYS <br /> 31244 South Highway 33, Tracy, California <br /> Dear Mr. Trinkle: <br /> At your request, Advanced GeoEnvironmental, Inc. (AGE) has prepared this report for the <br /> destruction of three ground water monitoring wells (MW-4 through MW-6) at 31244 South <br /> Highway 33, Tracy, California (site). The site location is depicted on Figure 1; site <br /> structures and former monitoring well locations are depicted on Figure 2. Site background <br /> information is included in Appendix A. <br /> INTRODUCTION <br /> Three single completed two-inch diameter ground water monitoring wells (MW-4 through <br /> MW-6) had been installed at the site in May 2009 as part of a subsurface investigation to <br /> determine if historical contaminants were present in shallow ground water. Monitoring wells <br /> MW-4 through MW-6 were installed to depths of 25 feet below surface grade (bsg). Well <br /> construction details are summarized in Table 1, boring logs are included in Appendix B. <br /> As directed bythe California Regional Water Quality Control Board (CRWQCB)letterdated <br /> 07 October 2010 (Appendix C), monitoring wells MW-4 through MW-6 were destroyed <br /> under San Joaquin County Environmental Health Department (EHD) permit SR#61247 <br /> (Appendix C) in order to fulfill requirements for site closure. Monitoring wells MW-4 through <br /> MW-6 were destroyed in accordance with the San Joaquin County Well Standards <br /> document (San Joaquin County Ordinance Code Section 9-1115.6, amended 08 May <br /> 1993), Standards For Well Construction And Destruction In San Joaquin County, dated <br /> February 2005. <br /> Advanced GeoEnvironmental,Inc. <br /> 837 Shaw Road • Stockton,CA 95215 <br /> Telephone (209)467-1006 •Fax (209)467-1118 <br />