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WASTE DISCHARGE REQUIREMENTS FOR -7- <br /> SAN JOAQUIN COUNTY <br /> NORTH COUNTY SANITARY LANDFILL <br /> CLASS III LANDFILL <br /> SAN JOAQUIN COUNTY <br /> testing of either the finished liner or a test pad constructed <br /> of the same materials to be used in the liner. Construction <br /> methods and quality assurance procedures shall be sufficient to <br /> insure that all parts of the liner and cap meet the hydraulic <br /> conductivity and compaction requirements. <br /> 8. LCRSs shall be designed, constructed, and maintained to collect <br /> twice the anticipated daily volume of leachate generated by the <br /> WMU and to prevent the buildup of hydraulic head on the <br /> underlying liner. <br /> Supervision and Certification of Construction <br /> 9. All containment structures shall be designed and constructed <br /> under the direct supervision of a California registered civil <br /> engineer or a certified engineering geologist and shall be <br /> certified by that individual as meeting the prescriptive <br /> standards and performance goals of Subchapter 15 prior to waste <br /> discharge. <br /> Water Quality Protection Standards <br /> 10. The concentrations of indicator parameters or waste constituents <br /> in waters passing through the Points of Compliance shall not <br /> exceed the "water quality protection standards" established <br /> pursuant to Monitoring and Reporting Program No. 89-199, which <br /> is attached to and made part of this Order. <br /> Protection from Storm Events <br /> 11. Waste management units shall be designed, constructed, and <br /> operated to prevent inundation or washout due to floods with a <br /> 100-year return period. Class III landfills and related <br /> containment structures shall be constructed and maintained to <br /> prevent, to the greatest extent possible, ponding, infiltration, <br /> inundation, erosion, slope failure, washout, and overtopping <br /> under 100-year, 24-hour precipitation conditions. <br /> 12. Precipitation and drainage control systems shall be designed and <br /> constructed to accommodate the anticipated volume of <br /> precipitation and peak flows from surface runoff under 100-year, <br /> 24-hour precipitation conditions. <br />