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s� <br /> P ^ �T <br /> Id <br /> Mr.Paul Supple <br /> Atlantic Richfield Company <br /> Page 2 of 2 <br /> • A well screened in Sand 2, and an adjacent well screened in Sand 3 midway between <br /> monitoring well 5 (MW-5) and MW-6,may be useful additions to ensure down-gradient <br /> delineation of impacted groundwater. <br /> Please submit a work plan by 07 January 2004 for installation of the SVE with air sparging <br /> system to prevent additional migration of methyl tertiary-butyl ether at the site. Also submit a <br /> work plan by 17 February 2004 to conduct the necessary additional site characterization. Include <br /> the compounds 1,2-dichloroethane and 1,2-dibromoethane(EDB) in future soil and groundwater <br /> analyses. <br /> Please contact Vicki McCartney, REHS, at(209)468-3456 or ymccartne s cehd.com,if you <br /> have any questions regarding this letter. <br /> Donna Heran, REHS,Director <br /> Environmental Health Department <br /> Vicki McCartney,REHS Nuel C. Henderson,Jr.,RG <br /> Unit IV-Site Mitigation Unit IV- Site Mitigation <br /> cc: Vernon Elarth -URS <br /> James L.L. Barton-CVRWQCB <br /> . r. <br /> I <br /> I <br />