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0 9 <br /> CLOSURE SOLUTIONS, INC. <br /> September 12, 2007 <br /> Mr. Michael Infurna <br /> San Joaquin County <br /> Environmental Health Department <br /> 600 E. Main Street <br /> Stockton, California 95202 <br /> Re: Dual Completion Well Destruction <br /> Flag City New West#1003 <br /> 6437 W. Banner St.,Lodi, California 95242 <br /> CVRWQCB Case No. 391163 <br /> Dear Mr. Info na, <br /> This letter is being submitted to your office regarding future well destruction protocols <br /> associated with dual completion wells to be installed at the Flag City.New West facility <br /> located at 6437 W. Banner Street in Lodi, California. <br /> Closure Solutions understands that San Joaquin County may require that dual-completion <br /> wells be abandoned by overdrilling to the full depth and diameter of the original <br /> borehole. Closure Solutions further understands that San Joaquin County may require <br /> that this be accomplished by centering the auger on the deeper of the dual completion <br /> wells, and that for 2" diameter dual completion wells, this may require overdrilling with <br /> 15" diameter augers. <br /> Upon destruction of the wells, Closure Solutions will backfill the borehole with neat <br /> cement from the bottom up to approximately 5 feet bgs using a tremie pipe, or as directed <br /> by the County. At the time of well destruction, Closure Solutions agrees to destroy the <br /> wells in accordance with both California Well Standards(74-81)as well as any additional <br /> San Joaquin:County requirements. <br /> We look forward to working with you. If you have any questions, please feel free to call <br /> me at(925) 429-5555, or e-mail at rchinn@closuresolutions.com. <br /> Sincerely, <br /> (�/� �oQROf�t04g1 <br /> Ronald D. Chinn, P.E. a k Z <br /> Principal Engineer Y} E* <br /> cc: Ms. Marta Garcia,New West Stations,Inc. 40V�Fr CAl�FO� <br /> 1243 Oak Knoll Drive •Concord,CA 94521 <br /> (800) 988-7880 <br /> ,,,-.;v.i'l" rC4+l;a IIts..:.,..r-1 <br />