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ENSR AECOM <br /> ENSR <br /> 10461 Old Placerville Road,Suite 170,Sacramento,California,95827-2508 hID <br /> T916.362.7100 F916.362.8100 www.ensr.aecom.comE rr <br /> July 31, 2008 \\\JJJ <br /> 4U� 01 20G8 <br /> Mr. James L Barton 0090NMEN i <br /> Central Valley Water Board PERMIT/SFR`IIGF.' <br /> 11020 Sun Center Drive, Suite 200 <br /> Rancho Cordova, California 95670 <br /> RE: 540015606 Pacific Avenue, Stockton,California <br /> Former Montgomery Wards/Former Unocal Station#5098(Chevron#306620) <br /> Cleanup and Abatement Order No. 5-00-707 <br /> ENSR Project 01231-154-R50 <br /> Dear Mr. Barton: <br /> ENSR Corporation (ENSR), on behalf of Chevron Environmental Management Company (EMC), is <br /> notifying the Central Valley Water Board (CVWB)that the upgrade to the remediation systems for the <br /> former Montgomery Ward, LLC (Wards) service station located at 5400 Pacific Avenue, and the former <br /> Unocal service station, located at 5606 Pacific Avenue, Stockton, California, referenced collectively herein <br /> as the Site, has been completed. Pursuant to the CVWB's request in a letter dated March 5, 2008 for <br /> written notification, ENSR is providing notification that the air sparge(AS) and soil vapor extraction (SVE) <br /> remediation systems at the Site were started and back in operation on July 30, 2008. <br /> ENSR will provide a report to the CVWB of the AS/SVE system installation activities, as directed by the <br /> CVWB, no later than August 29, 2008. If you have any questions regarding the AS/SVE system, please <br /> contact Jennifer Johnston at(916)362-7100. <br /> Sincerely, <br /> ENSR Corporation <br /> i <br /> fifer J nston� 4I� hsiStival , P.G. <br /> ect Manager Program Manager <br /> cc: Ms. Stephanie Furgal, EMC <br /> Mr. Mike Infurna, San Joaquin County, Environmental Health Division <br /> Mr. Jay Allen, Stone Brothers Management Company <br /> Ms. Nicole Gleason, Downey Brand <br /> 01231-154 <br />