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URS <br /> • <br /> Mr Harlin Knoll <br /> San Joaquin County Environmental Health Department <br /> December 2, 2003 <br /> Well Destruction Methods <br /> One remediation well (TEX-1) will be properly destroyed by a licensed drilling contractor at the <br /> direction of a URS geologist Well TEX-1 is constructed of 6-inch diameter PVC casing inside a 12- <br /> Inch diameter borehole The total depth of the well is approximately 38 5 feet below ground surface <br /> (bgs) <br /> The well will be destroyed by over-drilling and then filling the borehole from total depth to near ground <br /> surface with a Portland cement grout containing C5% bentonite powder The surface completion will <br /> consist of concrete that will be placed such that it matches the surrounding ground surface <br /> Report Preparation <br /> Following completion of the field activities a report will be prepared The report will include well <br /> destruction details <br /> If you have any questions or comments regarding this letter, please call Mr Vernon Elarth at <br /> (916) 679-2299 <br /> Sincerely, <br /> URS Corporation Americas `S��REI) G�0., <br /> � N PA U(Fe9�0;' '' <br /> No S <br /> 12 <br /> Jeffrey A Brooks Vernon Elarth, R G * Exp ► 3 �'� <br /> Staff Geologist Project Manager <br /> Attachments Figure 1 Site Location Map OF CAS-IF <br /> Figure 2 Site Map <br /> Attachment A SJCEHD Correspondence <br /> cc Mr Paul Supple, Atlantic Richfield Company <br /> Mr James Barton, California Regional Water Quality Control Board—Central Valley Region <br /> Project File <br /> K 1WprocessU5 BP ARCO\020931Workplan12093 Well Dest Workplan 03 doc <br />