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S E C 0 R <br /> Ms. Victoria McCartney <br /> January 19, 2005 <br /> Page 3 <br /> total xylenes (BTEX), methyl tertiary butyl ether (MtBE), tertiary butyl alcohol (TBA), <br /> di-isopropyl ether (DIPE), ethyl tertiary butyl ether (EtBE), tertiary amyl methyl ether <br /> (TAME), 1,2-dichloroethane (1,2-DCA), and 1,2-dibromoethane (EDB) by EPA 8260. <br /> SCHEDULE <br /> SECOR is prepared to initiate field work within 2 weeks following approval of this Work Plan <br /> by the County and issuance of all necessary permits. A report documenting the findings of <br /> the investigation will be prepared and submitted approximately 8 to 10 weeks following the <br /> completion of field work and receipt of laboratory analytical data. <br /> If you have any questions or comments regarding the contents of this Work Plan, please <br /> contact Darin Rouse of Chevron at (925) 842-1572 or David Evans of SECOR at (916) 861- <br /> 0400 extension 234. <br /> Sincerely, <br /> SECOR International,Incorporated <br /> G EO`O <br /> Carryl G. rd Daniel J. vis, R.G. <br /> Staff Scien ist Senior Geologist J, <br /> DPOEL- J• <br /> OAV <br /> IG <br /> 5435 <br /> Enclosures: X10• e. <br /> Figure 1 Site Location Map s�gTEC��'���Q` <br /> Figure 2 Site Plan with Proposed Boring Locations OF <br /> Attachment 1 Field and Laboratory Procedures <br /> cc: Darin Rouse, ChevronTexaco Environmental Management Company, San <br /> Ramon, California <br /> Jim Barton, Regional Water Quality Control Board, Rancho Cordova, California <br /> I� <br /> I:\Chevron\91452\REPORTS\2005\Geoprobe_work plan.doc <br />