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THE <br /> SGI SOURCE GROUP, INC. <br /> environmental <br /> BEC;EvED <br /> April 25, 2013 <br /> ASR „J 2013 <br /> Ms. Amy Terrell EN-f(T.DNMEWALHF:AUR <br /> California Regional Water Quality Control Board, Central Valley Region PE'VVI1^3ERVICES <br /> 11020 Sun Center Drive, Suite 200 <br /> Rancho Cordova, CA 95670 <br /> Subject: Monitoring Well Destruction Report <br /> Oxychem Stockton <br /> 1904 West Charter Way <br /> Stockton, California <br /> Dear Ms. Terrell: <br /> On behalf of Glenn Springs Holdings, Inc. (GSHI), The Source Group, Inc. (SGI) has prepared this <br /> Monitoring Well Destruction Report for the Oxychem Stockton Site located at 1904 West Charter <br /> Way, Stockton, CA. (Site, Figure 1). Three of the Site's monitoring wells (MW-3, MW-4, and MW- <br /> 19) were destroyed as described in SGI's February 11, 2013 Work Plan and following the <br /> conditions outlined in the California Regional Water Quality Control Board (CRWQCB), Central <br /> Valley Region's conditional concurrence letter dated March 6, 2013. The work was performed <br /> under permit from the San Joaquin County Environmental Health Department (SJCEHD). A copy <br /> of the permit is included as Attachment A. <br /> On March 19th and 20'x, 2013, SGI staff directed Woodward Drilling to destroy the 3 monitoring <br /> wells. In accordance with SJCEHD permits, monitoring wells MW-3, MW-4, And MW-19 were <br /> destroyed by removing the well boxes and drilling out all well construction materials. The wells <br /> were then grouted from the bottom up with neat cement to approximately 4 feet below ground <br /> surface, as requested by CRWQCB. Following grouting, the remaining well cavities were <br /> backfilled with soil to match the existing surface grade. <br /> The Department of Water Resources (DWR)Well Completion/Destruction Forms (Form 188)were <br /> submitted to DWR and CRWQCB on April 25, 2013. Copies of the Well Completion/Destruction <br /> Forms are included as Attachment B. <br /> Additionally, SGI is in the process of ensuring that all investigation-derived waste at the Site will be <br /> profiled, removed and disposed of in accordance with applicable laws. <br /> 3478 Buskirk Avenue, Suite 100 Telephone:(925)944-2856 <br /> Pleasant Hill, California 94523 Facsimile:(925)944-2859 <br /> Monitoring Weld Des"dion Report-4.23.13.do <br />