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California Regional Water Quality Control Board <br /> Central Valley Region <br /> Linda S.Adams Arnold <br /> Secremry jar Karl E.Longley,ScD,P.E.,Chair Schwaraenegger <br /> Eremal <br /> rwect <br /> P11020 Sun Crow Drive#200,Rancho Cordova,California 95670-6114 Governor <br /> rorecrion Phone(916)464-3291 •FAX(916)464-4645 <br /> http://www.waterbouds.ca.gov/centralvalley <br /> 21 May 2009 W EEE U ICU <br /> IMAY 2 6 2009 <br /> DESJC, M.BENSON <br /> Defense Distribution Depot San fA�j tiln "I ''T I�EALTti <br /> P.O. Box 960001 FERi0i 1ijERVICES <br /> Stockton, CA 95296 <br /> REVIEW OF GROUNDWATER MONITORING WELL INSTALLATION WORKPLAN FOR <br /> OFF-DEPOT WELL CLUSTERS MW536, MW537 AND MW538, APRIL 2009, DEFENSE <br /> DISTRIBUTION DEPOT SAN JOAQUIN—SHARPE SITE <br /> Central Valley Regional Water Quality Control Board (Central Valley Water Board) staff has <br /> reviewed the Groundwater Monitoring Well Installation Work Plan for Off-Depot Well Clusters <br /> MW536, MW537 AND MW538, APRIL (Work Plan) dated 8 April 2009. The Work Plan was <br /> prepared by URS Group, Inc., on behalf of Defense Logistics Agency Enterprise Support <br /> San Joaquin, California (DESJC) for the Defense Distribution Depot (DDJC) Sharpe site. <br /> The Work Plan proposes the installation of three well clusters, one composed of two wells, <br /> another composed of three wells, and a third composed of four wells. The work is being <br /> conducted in support of ongoing source investigation for optimization of site remedial <br /> actions. DESJC proposed the Work Plan in the Draft Comprehensive CPT Investigation <br /> Results Report, February 2009 dated 10 February 2009. Regional Water Board staff has no <br /> objections to DESJC implementing the Work Plan <br /> If you have any questions, please contact me at (916) 464-4675, or by email at <br /> jbrownell@waterboards.ca.gov. <br /> James R. Brownell, P.G. <br /> Associate Engineering Geologist <br /> cc:. Mr. Phillip Ramsey, USEPA Region 9, San Francisco <br /> Mr. Peter MacNicholl, DTSC Region 1, Sacramento <br /> Mr. Harlin Knoll, San Joaquin County Health Department, Stockton <br /> Mr. Rich Howard, Techl-aw, Inc., Sacramento <br /> Mr. Brian Renaghan, AFCEE, San Antonio, Texas <br /> Mr. Michael Thomas, URS, Sacramento <br /> Mr. John Anthony, Noblis, Greenwood Village, Colorado <br /> California Environmental Protection Agency <br /> Q*Recycled Paper <br />