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California Ronal Water Quality (>dntrol Board <br /> Central Valley Region <br /> -I on I amminen Robert Schneider,Chair <br /> Secretaryfor Arnold Schwaraenegger <br /> Environmental Sacramento Main Office Governor <br /> Protection Internet Address:http://w .sweb.ca.gov/rwqcb5 <br /> wgcb5 <br /> 11020 Sun Center Drive#200 Rancho Cordova,CA 95670-6114 <br /> Phone(916)464-3291 •Fax (916)4644797 <br /> 24 November 2004 RECEIVED <br /> Mr. Mike Lescisin � <br /> Diamond Walnut Growers Inc. NOV 2 9 2004 <br /> 1050 South Diamond Street <br /> Stockton, California 95201 ENVinUNMENT HEALTH <br /> ?Pl nMIPSERVICES <br /> MONITORING AND REPORTING PROGRAM R5-2004-0840, DIAMOND WALNUT <br /> GROWERS, STOCKTONPLANT RELEASE SITE, 1050 SOUTH DIAMOND STREET, <br /> STOCKTON, SANJOAQUIN COUNTY <br /> Diamond Walnut Growers, Inc. (DWG) is conducting cleanup at its Stockton Plant at 1050 South <br /> Diamond Street in San Joaquin County(site), because of hexavalent chromium discovered in soil <br /> and groundwater beneath its cooling tower. The release polluted groundwater and impaired its <br /> beneficial use. Central Valley Regional Water Quality Control Board (Regional Board) staff sent <br /> DWG and its consultant ATC Associates Inc. (ATC) a draft revised Monitoring and Reporting <br /> Program (MRP) for the site on 12 October 2004. During a telephone conversation on 18 <br /> November 2004, Ms. Jeanne Homsey of ATC stated you had no comments on the draft. Thus, <br /> the enclosed MRP No. R5-2004-0840 is now in effect. Regional Board staff anticipates that a <br /> further revision to the MRP will be necessary after DWG completes its proposal for groundwater <br /> cleanup. <br /> Regional Board staff in the Spills, Leaks, Investigations, and Cleanup (SLIC) Program are <br /> currently working to include and update SLIC sites in Geotracker. Geotracker is a geographic <br /> information system that provides internet access to environmental data. Although Geotracker has <br /> been available to the public for underground storage tank (UST) sites, it now includes SLIC sites. <br /> As of 1 January 2005, SLIC sites will be required to submit data electronically, as is currently <br /> required for UST sites. Therefore,DWG should review all of its SLIC sites in Geotracker and <br /> provide corrections or updates to the information. The website address for Geotracker is <br /> currently www.geotracker.swreb.ca.gov, but this will eventually change to <br /> www.geotracker.waterboards.ca.gov <br /> If you have any questions, you may contact Mary Serra at(916) 464-4682 or by email at <br /> mserra ,waterboards.ca.gov. <br /> WENDY . COHEN, P.E. <br /> Chief,Private Sites Cleanup Unit <br /> Enclosure <br /> See next page for cc list <br /> California Environmental Protection Agency <br /> 0 Recycled Paper <br />