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� � I <br /> 1 <br /> Chevron <br /> Mike Oliphant Chevron Environmental <br /> / Project Manager Management Company <br /> !!! Superfund and Specialty 6101 Bollinger Canyon Rd. <br /> Portfolios San Ramon,CA.94583 <br /> RECEI a1 31 <br /> hev n.com <br /> DEC 10 2012 <br /> 12/6/12 ENVIRONMENTAL HEALTH <br /> PERWISERViCES <br />�- -_ Paul Verma,PE '-- <br /> City of Tracy <br /> Assistant City,Engineer <br /> 333 Civic Center Plaza <br /> Tracy, CA 95376 <br /> i <br /> Dear Paul, <br /> I <br /> This is in response to Lisa's e-mail of October 151h. We understand that the San Joaquin County <br /> Environmental Health Department has indicated its willingness to close the City's Boyd Service Station <br /> Site, pending the City's removal of four remaining monitoring wells. We also understand that the City of <br /> Tracy recently requested that the Department permit the four monitoring wells located at the Boyd <br /> Service Station to remain intact for future sampling related to historic petroleum pipelines in the area. <br /> Chevron does not have an open case involving (and there is no current agency action regarding) the <br /> historical crude oil operation of the Tidewater Associated Oil Company (TAOC) at the Boyd Service <br /> Center Iocation. Therefore, there is no current need to conduct any sampling from the four wells Iocated <br /> on your site, and no need to delay the destruction of the wells or the closure of the Boyd Service Station <br /> Site. <br /> Regards, <br /> Mike Olipha t <br /> Cc. Lisa M dins, San Joaquin County Environmental Health Department, Senior REHS <br /> .Mari Gilmore,AMSC Environment&Infrastructure, PG, Senior Geologist <br />