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Please consider the environment before printing this email. <br /> -----Original Message----- <br /> From: Jim Barton [mailto:jbarton@waterboards.ca.gov] <br /> Sent: Wednesday, March 02, 2011 11:12 AM <br /> To: Mike Infurna [EH]; Harms, Clint <br /> Cc: Shelby S (Shaw Environmental Inc.) Lathrop; Peltier, Richard <br /> Subject: Re: Circle K 1205, 16470 Cambridge , Lathrop, CA <br /> Hi Clint and Mike, <br /> for clarification, the injection permit only requires a shutdown of the system and "rebound <br /> monitoring" (monitoring for return to baseline <br /> conditions) as a fail safe action if adverse affects (hexavalent chromium, etc.) are detected during the <br /> pilot test. Was this the reason for the shut down? Thanks. <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 Drive, <br /> Suite 200, Rancho Cordova, CA 95670 office (916) 464-4615 <br /> fax (916) 464-4704 <br /> To comply with the Governor's order calling for furloughs, specific staff of the Central Valley Regional <br /> Water Control Board Office and offices of the California Environmental Protection Agency are <br /> required to take three furlough days off every month. I apologize for any inconvenience this may <br /> cause. <br /> >>> "Harms, Clint" <Clint.Harms@stantec.com> 3/2/2011 10:43 AM >>> <br /> Mike - I am sending this e-mail to let you know that we have completed the 6 month ozone <br /> sparge/SVE pilot test at the above site. Per our WDR with the RWQCB we have to shut the ozone <br /> sparge down and conduct one set of rebound groundwater samples in March. Additionally, the <br /> influent concentration to the SVE system is currently below 10 ppmv, therefore ConocoPhillips would <br /> like your approval to shut-off the SVE also while the pilot test report is being prepared. We will submit <br /> a pilot test report in early- to mid-April with conclusions and recommendations (to include some <br /> pulsing/rebound testing of the SVE system). Let me know if you have any questions or concerns. <br /> Thanks. <br /> Clinton Harms <br /> Senior Scientist <br /> Stantec <br /> 3017 Kilgore Road Suite 100 <br /> Rancho Cordova CA 95670 <br /> Ph: (916) 861-0400 Ext. 228 <br /> Fx: (916) 861-0430 <br /> Cell: (916) 826-4186 <br /> stantec.com<hftp://www.stantec.com> <br /> The content of this email is the confidential property of Stantec and should not be copied, modified, <br /> 2 <br />