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Westside Channel Outfall Project -2 - 4 Feb 2003 <br /> procedure to ensure protection of groundwater quality. The Regional Board staff is preparing a proposed <br /> procedure for review by the interested parties in order to address this concern. <br /> Another issue currently under discussion involves the ultimate disposal of the 4-10 mgd of shallow <br /> groundwater generated by the dewatering process during a 90-day construction period. The City of <br /> Tracy's current proposal is to discharge all of the shallow groundwater from the dewatering system <br /> (including that treated by the Chevron system following analysis) into the Westside Irrigation District <br /> stormwater/tailwater irrigation canal system ultimately discharging into the Old River (tributary to the <br /> Delta), a water of the U.S. If this process is implemented, Regional Board staff has indicated that it <br /> would be subject to a site-specific NPDES permitting process in accordance with the federal Clean <br /> Water Act. <br /> We will continue to work with you regarding the appropriate resolution of these issues. <br /> Please forward all further correspondence relative to the sites, other than the six noted, to the Fresno <br /> address. If you have any questions, please contact Dean Hubbard at(559—445 - 5179) or email: <br /> hubbardd@rb5f.swreb.ca.eov. Thank you. <br /> �_ �. <br /> SHELTON R. GRAY DEAN HUBBARD <br /> Senior Engineering Geologist Associate Engineering Geologist <br /> RG No. 6357 <br /> cc: Ms. Frances McChesney, Office of Chief Counsel, Sacramento <br /> Mr. Michael Infurna <br /> San Joaquin County Environmental Health Department <br /> 304 E. Weber Avenue, Third Floor <br /> Stockton, Ca. 95202-2708 <br /> Ms. Margaret Lagorio <br /> San Joaquin County Environmental Health Department <br /> 304 E. Weber Avenue, Third Floor <br /> Stockton, CA 95202-2708 <br /> Ms. Penny T. Fottrell <br /> Chevron Environmental Management Company <br /> San Ramon, CA 94583-2324 REP NED <br /> Mr. Robert Mihalovich f E B 0 5 2003 <br /> Chevron Environmental Management Company ENVIRONMENT HEALTH <br /> San Ramon,, CA 94583-2324 <br /> P. O. Box PERMIT/SERVICES <br /> C <br /> Mr. Bryan H. Turner <br /> c/o Chevron Environmental Management Company <br /> P. O. Box 6012 <br />