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Mike Infurna [EH] <br /> From: Jim Barton Ubarton@waterboards.ca.gov] <br /> Sent: Mondays May 14, 2007,3:00 PM <br /> To: dbrown@secor:com <br /> Cc: Mike:anfurna [EH] ,. <br /> Subject: R #14197 Stockton Oxygen.Injection.Feasibility <br /> Hello Damon, <br /> I. reviewed the report, -but could not find a- recommendation for further remedial action.. <br /> I am satisfied from the data that hexavalent chromium was not produced, and there were <br /> minimal impacts to water quality. As you stated, there did not seem to be a decrease: in <br /> contaminant concentrations .for, the short duration of the pilot study.. I have completed my <br /> evaluation of the oxygen injection pilot study, and do not see a need- for Regional Board <br /> Waste Discharge Requirements for this method at this site.. <br /> Please. note that. San Joaquin County is the. lead agency for this site, so final approval <br /> for Corrective. Action is their domain. <br /> Thank you for your inquiry. <br /> Jim Barton <br /> James L.L. Barton, P.G. <br /> Engineering Geologist <br /> California Regional Water Quality Control Board Central Valley Region, 11020 Sun Center <br /> Drive, Suite 200, Rancho Cordova, CA 95670 -office (916) 464-4615 <br /> fax (916) 464-4704 <br /> >'>> !'Damon, Brown" <dbrowri@secor.:com> 5/14/2007 2 :08 PM >>> <br /> 7-11 #14117 <br /> 2725 Country. Club Blvd <br /> Stockton, CA <br /> Mr'. Barton, <br /> Good afternoon. I was just following up -again on the% status of your approval/concurrence <br /> of SECOR report Results of Oxygen Injection Feasibility Pilot. Study dated May 9, 2006'. <br /> Thank You, <br /> Damon Brown <br /> 4 <br /> Project Geologist - PM <br /> SECOR International, Inc. <br /> 3017 Kilgore Road, Suite 100 <br /> Rancho Cordova, CA 95670 <br /> Direct: 916-384-0718 <br /> Cell : 916-826-7052 <br /> dbrown@secor.com <br /> 1 <br />