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ENVIRONMENTAL HEALTH DEPARTMENT <br /> Ppu'I" C SAN JOAQUIN COUNTY Unit Supervisors <br /> )4•_.�f .oG Carl Borgman,R.E.H.S. <br /> Donna K.Heran,R.E.H.s. 304 East Weber Avenue, Third Floor Mike Huggins,R.E.H.S.,R.D.I. <br /> Director -2708Douglas W.Wilson,R.E.H.S. <br /> 1I�I� Stockton, California 95202 <br /> Al Olsen,R.E.H.S. Margaret Lagorio,R.E.H.S. <br /> 468-340 <br /> _) P Program Manager Telephone: (209) Robert McClellon,R.E.H.S. <br /> 4.i F O R�\ Laurie A.Cotulla,R.E.H.S. Fax: (209) 464-0138 Mark Barcellos,R.E.H.S. - <br /> Program Manager <br /> ROBERT J COCHRAN <br /> CHEVRON ENVIR MGMT COMPANY OCT 25 ZV <br /> PO BOX 6004 <br /> SAN RAMON CA 94583-0904 <br /> RE: Chevron Bulk Terminal#1001621- UST <br /> Site Code: RO#1471 <br /> 22888 S. Kasson Rd. <br /> Banta, CA. <br /> - I <br /> WORKPLAN: "Work Plan for Further UST Assessment" CCT 2 7 2-u4 <br /> DATED: <br /> October 18, 2004 <br /> PREPARED BY: Secor International—Scott E. Gable, R.G. � ; <br /> STATUS: APPROVED with conditions noted below. <br /> ADEQUAAND NECESSARY ELEMENTS OF THE WORKPLAN Health 8R Saf <br /> TE et <br /> Code (HBS) Section 25296.10(c)(3) <br /> Install two monitoring wells onsite for lateral and vertical soil and groundwater <br /> delineation as required by SJCEHD. <br /> One deep, monitoring well (MW-65B)to be installed in former UST pit area for <br /> rvertical plume investigation and one shallow monitoring well, MW-69A, to be <br /> installed south of the former UST pit for lateral plume investigation. <br /> Collect and analyze soil samples for TPH as gasoline and diesel (EPA Method <br /> 8015m) and BTEX and five Oxygenates (8260B) and Total lead (7420). <br /> Survey, develop and add new wells to existing quarterly monitoring and sampling <br /> protocol for existing UST related wells, MW-68A, MW-1UA, and MW-67UA. <br /> Submit report of findings to SJCEHD in format of a Site Conceptual Model. <br /> COMMENTS AND CONDITIONS: <br /> . Adequate number of soil samples are to be collected and analyzed to support <br /> conclusions of vertical delineation and/or migration and, <br /> All groundwater and selected soil samples Solubleare o(LUFT)be Ilead (EPA Method SW846 - <br /> tionally analyzed for 1,2- <br /> DCA, and EDB by EPA Method <br /> 1 60108) should replace Total lead (7420). November 12, 2004. <br /> Please submit a Well Permit Application and fee by <br /> REASONS FOR DISAPPROVAL OF THE WORKPLAN HB-S Section 25296.10 c 3 : <br /> none. <br /> BY t468-34 <br /> S6 <br /> DATED: October 25, 2004 ichael Infurna, R S. (209) 4 <br /> c; CVRWQCB—James L. Barton, Sacramento. <br /> • C. CVRWQCB—Devra Lewis, Sacramento. <br /> C. SW RCB—CUF—Mark Owens, Sacramento. <br /> 17 Kilgore Rd,#100, Rancho Cordova, 95670. <br /> c: Secor—Scott E. Gable, 30 <br /> [X]faxed to consultant on: 10-25-04 <br />