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Ms. Jill Jefferson 3 - 13 March 2000 <br /> Need to submit results of any additional monitoring: The results of the due diligence study are of <br /> obvious concern to water quality at this site. I have no record of the Board being informed of the results <br /> of the study until the report was attached to this Work Plan. In the future,please submit,with the <br /> routine quarterly monitoring reports, the results of any additional monitoring that is performed at this <br /> site. New wells installed at the facility must automatically be included in the regular monitoring. <br /> Need for Additional Work Proposals: A report describing the results of the Phase I investigation is due <br /> by 1 May 2000. This report should contain a more detailed proposal for the new monitoring wells. In <br /> addition, the levels of benzene, MtBE, and TBA reported in the due diligence study and the last several <br /> monitoring reports show that aggressive remedial measures are needed. We discussed this point also <br /> during the 21 December 1999 meeting between KMEP staff and Board staff: Intrinsic bioremediation <br /> is not a timely and effective measure against MtBE or TBA when other hydrocarbon constituents are <br /> present. Therefore, in the 1 May 2000 report, please propose a schedule for preparing and submitting a <br /> remedial alternatives and feasibility study for remedial action in the tank farm and manifold areas. <br /> Please inform us at least three days in advance of field work so that staff may observe if desired. <br /> I will be leaving the Board after 15 March 2000, and Phil Isorena will be taking over this project. If <br /> you have any questions about this letter,please contact Mr. Isorena at(916) 255-3081 or our supervisor, <br /> Wendy Cohen, at (916) 255-3075. <br /> `v <br /> L WIG TT, C.E.G. <br /> Associate Engineering Geologist <br /> cc: Ms. Margaret Lagorio, San Joaquin County Environmental Health Division, 304 E. Weber Ave., <br /> Stockton, 95201-0388 <br /> Mr. Scott Seyfried, LFR Levine-Fricke,4080 Cavitt Stallman Road, Ste. 100, Granite Bay, 95746 <br />