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r <br />0 <br />contamination may occur. These locations will include, sample system connections and <br />surface bentonite seals. Sampling will not be conducted during wet conditions. Samples <br />will be collected in Summa canisters. URS will utilize a mobile laboratory during the <br />investigation. The mobile laboratory will be able analyze the sample while URS is in the <br />field allowing for sampling adjustments if tracer compounds are detected in the sample. <br />One duplicate sample will be collected during the investigation. <br />The canister is under vacuum and allows for sample collection. Samples will be analyzed <br />using soil gas Method TO -14 for VOCs. <br />Report Preparation <br />Following the completion of the activities, URS will prepare a report summarizing the <br />results of this and the April/May investigation. <br />Schedule <br />The field activities are tentatively scheduled to begin on Tuesday, September 4, 2007, and <br />take approximately two days to complete. <br />(See attached file: Stockton FMS Proposed Boring Locations.pdf)(See attached file: <br />Stockton FMS Soil Samples Apr -May 2007.xls)(See attached <br />file: Stockton FMS GW Samples Apr -May 2007.xls)(See attached file: Stockton FMS Soil Gas <br />Samples Apr -May 2007.xls) <br />Thanks, <br />Vern Elarth, P.G. <br />Senior Geologist <br />URS Corporation <br />2870 Gateway Oaks Drive, Suite 300 <br />Sacramento, CA 95833 <br />(916) 679-2299 <br />cell: (916) 717-5045 <br />fax: (916) 679-2900 <br />This e-mail and any attachments are confidential. If you receive this <br />message in error or are not the intended recipient, you should not retain, <br />distribute, disclose or use any of this information and you should destroy <br />the e-mail and any attachments or copies. <br />"Marcus Pierce" <br /><mpierce@waterbo <br />ards.ca.gov> <br />07/26/2007 07:24 <br />PM <br /><devra.lewis@us.army.mil> <br /><Vernon Elarth@URSCorp.com>, <br /><scott.hilyard@us.army.mil> <br />Field Sampling <br />#24 UST Site <br />3 <br />To <br />cc <br />Subject <br />Plan Addendum for FMS <br />