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Page 2 of 7 <br /> As for the wells being repaired; they are all dedicated monitoring points; 1 don't foresee any of them <br /> being repurposed into permanent remediation wells. If the wells were to be used for feasibility testing; <br /> any piping connected to the wells would likely be temporary above-grade piping. <br /> On an unrelated note, my apologies that the 11192 Stockton CPT work is taking so long to perform (I <br /> tr recall a phone call we had where you indicated those CPT borings were an even higher priority for you <br /> than the 5449 well installations. <br /> Ben Chevlen,PG I Senior Project Manager I ATC Associates Inc. 1 Los Angeles <br /> 805-496-1217 direct 1 916-425-4849 mobile <br /> 25 Cupania Circle I Monterey Park, California 91755 <br /> 323-517-9780 tel 1 323-517-9781 fax I www.atcassociates.corn <br /> ATC is a leader in developing innovative Environmental, Geotechnical/CMT/Special Inspections and Health &Safety <br /> solutions. View our video link to learn more. PLEASE NOTE: This message, including any attachments, may include <br /> privileged, confidential and/or inside information. Any distribution or use of this communication by anyone other <br /> than the intended recipient is strictly prohibited and may be unlawful. If you are not the intended recipient, please <br /> notify the sender by replying to this message and then delete it from your computer. <br /> From:;Mike Infurna [EH] [mailto:MInfurna@sjcehd.com] <br /> Sent: Monday, August 15, 20113:42 PM <br /> To: Ben Chevlen <br /> Subject: RE: TOC-CP # 5449 <br /> sorry to NOT imply you were the boss here Ben, not my intention. I was wondering if <br /> Shelby has a 'plan' for this site that may be leaning towards NO more work (using these <br /> wells for remediation) or downright slammed into the definately NO MORE WORK wall <br /> (as in go for the new LOW THREAT CLOSURE POLICY bouncing around)..... <br /> the main reason I asked was to be sure you didn't grout the well heads on Aug 26 only to <br /> jackhammer them out latter if these wells are 'hooked' up to some remediation system.. <br /> I'd rather you install a soft bentonite seal inside the boxes if they are thought to be <br /> needed for hook up in the near future rather than hard grout them now only to be busted <br /> up (damage the casing too?) later on.. <br /> I'm ok with a soft bentonite seal as a temporary plan until it can be shown they will NOT <br /> be needed for hook up. <br /> see? <br /> mike <br /> From: Ben Chevlen [mailto:ben.chevlen@atcassociates.corn] <br /> Sent: Monday, August 15, 20113:34 PM <br /> To: Mike Infurna [EH] <br /> Subject: RE: TOC-CP # 5449 <br /> Mike—As the ATC"management"for the site, my intention is to prepare the SCM and HHRA first; <br /> I'll utilize those findings to formulate the new remedial approach for the site. <br /> Ben Chevlen, PG I Senior Project Manager I ATC Associates Inc. I Los Angeles <br /> 805-496-1217 direct 1 916-425-4849 mobile <br /> 1 <br /> 8/19/2011 <br />