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r <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,RENS, at(209)468-3456 or vmccartne s cehd con, if you <br /> have any questions regarding this letter <br /> Donna Heran,REHS,Director <br /> Environmental Health Department <br /> �r L� <br /> • Vicki McCartney,REHS Nuel C Henderson,Jr,RG <br /> Unit IV-Site Mitigation Unit N-Site Mitigation <br /> cc Vernon Elarth -URS <br /> James L L.Barton-CVRWQCB <br /> c- <br />