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Former San Joaquin Cogeneration - 5 - 29 December 2020 <br /> Lathrop, San Joaquin County <br /> Site (PCBs, pre-regulated waste disposal), the Remedial Action Plan will require <br /> additional concurrence from the USEPA, CalRecycle, and SJEHD. <br /> • Any waste left in place exceeding SFRWB residential ESLs will require a Land <br /> Use Covenant restricting future use of the Site. <br /> Additional assessment activities are needed to fully characterize soil and groundwater <br /> at the Site. In an effort to coordinate efforts with Heorot Power Holding, USEPA, and <br /> SJEHP, Central Valley Water Board staff will not be requesting a work plan for <br /> additional assessment at this time. Subsequent to USEPA's review, as well as <br /> additional discussions with stakeholders, Central Valley Water Board staff will issue a <br /> request for a work plan outlining additional site assessment activities to delineate the <br /> waste identified beneath the southwest portion of the facility and to assess groundwater <br /> downgradient of identified contaminants. If you have any questions regarding this letter, <br /> please contact me at (916) 464-4811 or kyle.cockerham@waterboards.ca.gov. <br /> �g5�o14AL ago <br /> S.GOC �i,� <br /> / <br /> 6979 <br /> Kyle Cockerham, P.G. <br /> Engineering Geologist <br /> Private Sites Cleanup Unit �kOFcn+ <br /> Gerald Djuth <br /> Senior Engineering Geologist <br /> Chief, Federal and Private Site Cleanup <br /> 046592 4613 <br /> �aG 'c ° as <br /> ar <br />