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WASTE DISCHARGE REQUIREMENTS -6- <br /> MUSCO OLIVE PRODUCTS, INC. <br /> CLASS II SURFACE IMPOUNDMENTS <br /> SAN JOAQUIN COUNTY <br /> 14. Any direct-line discharge to a surface impoundment shall have fail-safe equipment or <br /> operating procedures to prevent overfilling. <br /> 15. The surface impoundments shall be designed, constructed and maintained to prevent <br /> scouring and/or erosion of the liners and other containment features at points of <br /> discharge to the impoundments and by wave action at the water line. <br /> 16. Leachate removed from a surface impoundment's primary LCRS shall be discharged to <br /> the impoundment from which it originated. <br /> 17. Leakage generation by a surface impoundment to the primary LCRS shall not exceed <br /> design requirements. If leakage generation exceeds this value, then the Discharger shall <br /> immediately cease the discharge of waste,excluding leakage,to the impoundment and <br /> shall notify the Board in writing within seven days. Notification shall include a time <br /> table for remedial action to repair the upper liner to the impoundment or other action <br /> necessary to reduce leakage production. <br /> 18. If leakage is detected by the vadose zone monitoring system of a surface impoundment, <br /> then the Discharger shall immediately notify the Board in writing within seven days. <br /> Notification shall include a time table for remedial action to repair the liners of the <br /> impoundment. <br /> 19. Solidswhich accumulates in the surface-impoundments shall be periodically removed to <br /> maintain minimum freeboard requirements and to maintain sufficient capacity for surface <br /> impoundment leachate and for the discharge of wastes. Prior to removal of these solids, <br /> sufficient samples shall be taken for their characterization and classification pursuant to <br /> Article 2 of Chapter 15. The rationale for the sampling protocol used, the results of this <br /> sampling, and a rationale for classification of the solids shall be submitted to Board staff <br /> for review. <br /> 20. Leachate generation by a surface impoundment LCRS shall not exceed 85% of the <br /> design capacity of(a) the LCRS, or(b) the sump pump. If leachate generation exceeds <br /> this value and/or if the depth of the fluid in an LCRS exceeds the minimum needed for <br /> safe pump operation, then the Discharger shall immediately cease the discharge of waste, <br /> excluding leachate, to the impoundment and shall notify the Board in writing within <br /> seven days. Notification shall include a timetable for a remedial action to repair the <br /> upper liner of the impoundment or other action necessary to reduce leachate production. <br /> Class II Surface Impoundment Closure <br /> 21. The closure of each surface impoundment shall be under the direct supervision of a <br /> California registered civil engineer or certified engineering geologist. <br /> 22. At closure of surface impoundments, all residual wastes, including liquids, sludges, <br /> precipitates,settled solids,and liner materials and adjacent natural geologic materials <br /> contaminated by wastes,shall be completely removed and discharged to a waste <br /> management unit approved by Board staff. If after reasonable attempts,the Discharger <br /> demonstrates the removal of all remaining contamination is infeasible,the impoundment <br /> shall be closed as a landfill. <br />