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Foothill Sanitary Landfill 2 10 June 2009 <br /> 4. Monitor the secondary.sump semi-annually hereafter. <br /> Based on the reported incident, the Discharger violated WDRs Order No. <br /> R5-2003-0020. Prohibition A.2. of the WDRs states: "The discharge of wastes outside of a <br /> Unit or portions of a Unit specifically designed for their containment is prohibited. " The LFG <br /> condensate line was incorrectly connected to the secondary sump. This portion of the landfill <br /> unit was not designed to contain the condensate in the manner that occurred and the <br /> discharge to the secondary sump was a violation of Prohibition A.2. <br /> .Staff agrees with planned actions discussed above but recommends the Discharger make <br /> every effort to seal the ruptured weld prior to covering. In addition, the primary and secondary <br /> sumps need to be monitored for leachate depths monthly hereafter but reported <br /> semi-annually. Routine monitoring of leachate in the secondary sump is needed so that the <br /> intended purpose of the secondary liner to detect leakage from the primary liner can be <br /> achieved. Reporting should include an expanded leachate monitoring table with elevations in <br /> MSL of the primary and secondary sump liners and measured depths of leachate over the <br /> liners.-This will beinaddition to the current__leachate-field-measurements-reported. Staff <br /> requests the Discharger start recording leachate depths this month and provide the expanded <br /> table and measurements beginning with the 1St Semi-Annual 2009 monitoring report due 31 <br /> July 2009. <br /> If you have any questions please contact Todd Del Frate at (916) 464-4737. <br /> STEVE E. ROSENBAUM <br /> Senior Engineering Geologist <br /> Compliance & Enforcement <br /> Title 27 and Non 15 Programs <br /> cc: Robert McClellon, San Joaquin County Environmental Health Department <br /> Gino Yetka, CIWMB, Sacramento <br />