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- <br /> -� Page 2 of 2 <br /> r N <br /> To: evans60@atcassociatesocom <br /> Subject: RE: Work Plan Submittal : King Island Resort - Eight Mile Road, Stockton, CA <br /> I've down loaded the WP and review it as time allows . <br /> You'll hear from me this week. <br /> From: David Evans [mailto: evans60@atcassociatesecom] <br /> Sent: Friday, January 19, 2007 3 : 30 PM <br /> To: Mike Infurna [EH] <br /> Cc: Todd Hafner'; Jeanne Homsey <br /> Subject: Work Plan Submittal : King Island Resort - Eight Mile Road, Stockton, CA <br /> Mike — please see the attached Work Plan pdf copy for the above referenced site as <br /> directed in your January 2, 2007, letter. This Work Plan includes proposed investigation <br /> activities based on our conversations and the site visit occurring over the last couple of <br /> weeks. Also included in the Work Plan is a summary table of historic adsorbed <br /> analytical results and two adsorbed MTBE isoconcentration maps that you requested. <br /> Your January 2007 letter also requested that a revised CAP and Site Conceptual Model <br /> (SCM) be prepared and submitted along with the attached Work Plan. ATC is of the <br /> opinion that the information collected from the proposed assessment, Work Plan <br /> attached, would be very valuable in preparing the CAP and SCM, and thus requests an <br /> extension commensurate with collecting the new data for these two documents. <br /> Extension Request Rational <br /> CAP : The information we collect during the proposed assessment will further define the <br /> vertical and lateral area of concern with respect to MTBE (and petroleum hydrocarbon <br /> where applicable), which will be significant when implementing the revised remedial <br /> approach ATC has selected for this site . With the new technology approach, ozone will <br /> not be utilized and therefore an ozone bench scale test will not be necessary. In addition, <br /> the ART wells will not be a part of the new CAP. <br /> SCM: The revised SCM will benefit from the additional/new data and will present a <br /> more accurate picture of, but not limited to, contaminant mass distribution, adsorbed <br /> MTBE mass flux, dissolved MTBE migration, MTBE biodegradation over time, site <br /> hydrology, etc. <br /> Your understanding and cooperation is greatly appreciated. <br /> Best Regards, Dave Evans <br /> 'I David A. Evans <br /> ATC Associates Inc. <br /> West Region Programs Group <br /> cell : 925-580-2446 <br /> fax: 925-369-0403 <br /> 'vou 're through improving, you 're through " <br /> 2/27/2007 <br />