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I <br /> San Joaquin County DIRECTOR <br /> Environmental Health De artment Donna Hera RENS <br /> � ASSISTANT DIRECTOR <br /> Q•f ?� 600 East Main Street Laurie Cotulla,REHS <br /> �;3 { Stockton, California.95202-3029 <br /> PROGRAM COORDINATORS <br /> Carl Borgman,REHS <br /> c P Website: www.s ov.or 1ehd Mike Huggins,REHS,RDI <br /> q�iFpR�` J9 9 <br /> Margaret Lagorio,REHS <br /> Phone. (209)468-3420 Robert McClellon,REHS <br /> Fax: (209)464-0138 .teff Carruesco,REHS,RDI <br /> May 30, 2008 Kasey Foley,REHS <br /> Ms. Kelly Esters <br /> Chevron Texaco Environmental Management Company <br /> Post Office Box 6012, Room K2236 <br /> San Ramon, California 94583-0804 <br /> Subject: Chevron Service Station 9-1452 <br /> 334 East Main Street <br /> Ripon, California 95366 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed Well <br /> Destruction Work Plan dated May 27, 2008, prepared and submitted by Conestoga-Rovers <br /> & Associates (CRA) on your behalf for the above-referenced site. In the work plan, CRA <br /> proposes to clear to eight feet below surface <br /> grade around each <br /> monitoring well using an <br /> air vacuum truck or hand auger followed by removing the traffic.box from:each monitoring <br /> well; then the wells will be destroyed by over drilling theboreholes to total depth using <br /> eight-inch diameter hollow-stem augers. The boreholes will be grouted with Portland <br /> cement using a tremie pipe. . <br /> The. EHD approves the work plan as submitted for destroying monitoring wells MW-1, <br /> MW-2, MW-3, MW-4, MW-5S, MW-5D,. MW-6S, MW-6D, and MW-7D. . However, <br /> because MW- <br /> 8 has atwelve-inch diameter borehole MW-8 must be destroyed by over.drilling the borehole to total depth using twelve-inch or larger diameter hollow-stem <br /> augers.. <br /> By letter dated May 23, 2008, the EHD directed you to.provide certification in writing that <br /> all record fee title owners have been notified of your request for closure. This is in <br /> accordance with Section 25297.15,of the California Health and Safety Code. The EHD has. <br /> not received a list of all record fee title owners and their mailing addresses. If you are the <br /> sole property owner, provide a statement to ,this effect to the EHD. Please submit this <br /> I <br /> information at your earliest convenience so that the closure process is not delayed. <br /> The EHD has received a well destruction permit application and permit fee of$60 from <br /> Conestoga-Rovers & Associates and will issue the permit today. The EHD has been t <br /> informed that the fieldwork will take place June 4th through June 6th,2008. . <br />