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Natalia ••. • <br />From: <br />Mary Boyd [mboyd@waterboards.ca.gov] <br />Sent: <br />Thursday, July 03, 2008 12:08 PM <br />To: <br />Jeff Bennett <br />Cc: <br />Natalia Subbotnikova [EH]; Andrew Keller <br />Subject: <br />Re: Re -installation of MW -10A, Cove Contractors landfill, Stockton, CA <br />Hello Jeff, <br />In response to Cove Contractors request to overdrill MW -10A due to a broken casing, staff <br />agrees with the proposal with one condition: <br />do not place the screen interval across more than one saturated zone. <br />Regards, <br />MB <br />Mary Boyd <br />Water Resources Control Engineer <br />Compliance and Enforcement <br />Region 5 - California Regional Water Quality Control Board 11020 Sun Center Drive #200 <br />Rancho Cordova, CA 95670-6114 <br />916 464 4676 (Phone) <br />916 464 4681 (Fax) <br />mboyd@waterboards.ca.gov <br />>>> "Jeff Bennett" <JBennett@millerbrooksenv.com> 7/3/2008 9:30 AM >>> <br />Mary, <br />As discussed this morning, the casing on MW -10A was apparently broken during installation <br />and will require replacement. We plan to overdrill the existing well with larger diameter <br />hollow -stem augers and reinstall the well in the original boring, with the screened <br />interval at approximately 50 to 70 feet, as originally proposed. All removed materials <br />will be containerized and disposed along with the original cuttings. Please respond back <br />to all parties with your concurrence so that Natalia has the record of authorization that <br />she needs for her files. <br />Thanks, <br />Jeffrey D. Bennett, PG, CHG, CEM <br />Associate Hydrogeologist <br />office: (714) 500-5454 <br />cell: (714) 743-0482 <br />1 <br />