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r, <br /> Mr.Paul Supple <br /> Atlantic Richfield Company <br /> Page 2 of 2 <br /> Please submit a work plan by April 30,2004,for a pilot test to.evaluate the proposed system <br /> Also include an estimate,with calculations and assumptions,of the hydrocarbon mass aat <br /> t this site. <br /> Please include analysis for methanol for all soil and groundwater samples in addition to the <br /> proposed analyses for-total petroleum hydrocarbons as gasoline(TPH-g)by U.S.Environmental <br /> Protection Agency(EPA)SW-846 method 801513;benzene,toluene,ethyl benzene,total xylenes <br /> (BT00i 1,2-dichloroethane(1,2 DCA), 1,2-di <br /> (EDB),meth3il tertiary-butyl.ether <br /> (MTBE),dnsopropyl ether(DIPE),tertiaryan)yl methyl ether(TAMME"),-ethyl.terdary butyl ether <br /> (ETBE),tertiary-butyl alcohol(TBA),and ethanol by EPA SW-846 method 8260B. Please <br /> ensure the reporting limit for 1,2-DCA and EDB are at least 0.5 micrograms per liter(µg2)in <br /> groundwater. <br /> A well/boring permit application and$89 permit fee must be submitted to EHD prior to installing <br /> the monitoring and SVE wells. Once the well/boring permit has been issued,please notify EHD <br /> at least seventy-two hours prior to the initiating the fieldwork, <br /> Please contact Vicla McCartney,REHS,at(209)468-3456 or vmcollLey@gjcebd.com if you <br /> have any questions regarding this letter. <br /> Donna Her'an,RENS,Director <br /> Environmental Health Department <br /> vLMO, <br /> Vicki McCartney,RENS Nuel C.Henderson,Jr.,RG <br /> Unit TV-Site Mitigation Unit IV-Site Mitigation <br /> cc: Jeff Brooks-URS <br /> James L.L.Barton-CVRWQCB <br /> 1. <br />