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Lori Duncan [EH] From: Jim Barton Obarton@waterboards.ca.gov] Sent: Wednesday,June 03, 2009 1:09 PM To: Margaret Lagorio [EH] Cc: Lori Duncan [EH];James Munch Subject: RE: Request for Closure Concurrence extension andclarification Hi Margaret, your email response may serve as adequate explanation for our questions on the document, and we can attach it to the summary for our file, and proceed with my management's review. - otherwise we can wait until you return;from vacation, if you need to sign any changes to the CCS. If you prefer that option, I will email a revised, more concise list to you later. Thanks. Jim James L.L. Barton, P.G. Engineering Geologist California Regional Water Quality Control Board Central valley Region, 11020 Sun Center Drive, Suite 200, Rancho Cordova, CA 95670 office (916) 464-4615 fax (916) 464-4704 >>> "Margaret Lagorio [EH] II <MLagorioosjcehd.com> 6/3/2009 12:33 PM >>> Jim, Just to let you know the case closure summary in our contract does not list 1,2 DCA or EDB as contaminant concentrations to be documented. Some staff add these contaminants to the contract list. Also, we don't try to search out the highest concentration of each contaminant in the before and after concentrations, we try to use just one sample as an example of the highest concentrations and report where we took the info from. No one should be making decisions about these sites based on the closure summaries. I'm not sure what you want us to do about the content of the CYSTIS. The tank file says they were diesel tanks, but gas was found in the soil samples. Also, do you want us to add a sentence to the closure summary that although the ESL's for diesel gross contamination were exceeded, this risk was addressed in the Confirmation Soil Boring report? I will be on vacation from tomorrow until June 22 and I don't know if we will have time to make the corrections before I leave today. Margaret -----Original Message----- From: Jim Barton [mailto:jbarton@waterboards.ca.gov] Sent: Wednesday, June 03, 2009 11:42 AM To: Lori Duncan [EH] Cc: Margaret Lagorio (EH) ; James Munch Subject* Request for Closure Concurrence extension and clarification Hi Lori, I have conducted a preliminary review of the Lenz Property, 1648 Shaw Rd. , Stockton request for closure concurrence, received I June 2009. 1 will recommend this case for closure concurrence; however, after discussion with Jim Munch, we respectfully request that certain items in the Case Closure Summary (CCS) be revised and resubmitted, or clarified, prior to our concurrence, and that an extension granted by SJCEHD to allow your 1