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borehole with two casings (one deep, one shallow), we have found that approximately a radius of 7 <br /> inches is needed to reach across to original borehole after being placed in the deeper casing which is <br /> offset approximately two inches from center. A 15 inch auger (with a 7.5 inch radius) is typically used <br /> since a 14 inch auger hasn't been found yet. <br /> Jim, I'll let you know the status of the well destruction method/plan after I receive and review the list.. <br /> Mike Infurna <br /> SJCEHD <br /> 209-468-3454 <br /> -----Original Message----- <br /> From: Jim Barton [mailto:jbarton@waterboards.ca.gov] <br /> Sent: Wednesday, August 17, 2011 7:32 AM <br /> To: Stephanie McKenna <br /> Cc: Brenda Evans <br /> Subject: Re: 5400 Pacific Avenue Stockton <br /> Hi Stephanie and Brenda, <br /> attached is a PDF copy of my well abandonment approval letter that is being mailed today. Thanks. <br /> Jim Barton <br /> James L.L. Barton, P.G. <br /> Engineering Geologist <br /> California Regional Water Quality Control Board Central Valley Region, 11020 Sun Center Drive, <br /> Suite 200, Rancho Cordova, CA 95670 office (916) 464-4615 <br /> fax (916) 464-4704 <br /> >>> "McKenna, Stephanie" <smckenna@chevron.com> 8/11/2011 4:31 PM >>> <br /> Good Afternoon Jim, <br /> I was wondering if you'd had a chance to look at the additional information AECOM sent you <br /> regarding our well destruction work plan. If so, are you still on track to approve the work plan by the <br /> end of August? <br /> Just trying to make sure all the necessary resources are available so we can execute the scope of <br /> work within the 60-day window. <br /> Thanks, <br /> 3 <br />