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DEER <br /> LEVINE• FRICKE <br /> February 16, 1999 6751.00.007 <br /> San Joaquin County rn <br /> Department of Environmental Health — <br /> Mike Infurna <br /> J <br /> 304 East Weber Ave, Third Floor <br /> Stockton, California co <br /> N <br /> Subject: Scope-of-work for Abandonment of A-zone Monitoring Well MW-117A <br /> Located on Gunton Way, Stockton, California <br /> Mr. Infurna, <br /> LFR proposes to abandon A-zone monitoring well MW-117A which was installed to 75' <br /> below ground surface (bgs). 10-inch diameter hollow stem augers will be utilized to <br /> overdrill to a depth of 76' bgs. Steel rods will be installed inside the well casing to <br /> keep the augers from kicking-off the original hole. MW-117A will be grouted to surface <br /> through the augers. <br /> Upon completion of abandonment activities, MW-117A will be redrilled/reinstalled <br /> approximately 5 feet away from the original boring. <br /> If you have any questions or concerns regarding the proposed activities, please call me <br /> at (510) 596-9602. <br /> Sincerely, <br /> Dan J. Foster <br /> Project Hydrogeologist <br /> 1900 Powell Street, 12th Floor, Emeryville, California 94608-1827 • (510) 652-4500 • fax (510) 652-2246 • www.Ifr.com <br /> Offices Worldwide <br />