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Retention Pond south of Module 4. Water entering the retention pond will be <br />pumped into the site drainage ditches, eventually entering the interim sedimentation <br />pond. <br />3 The west slope of module 4 below the West Bench Road, where additional cover was <br />placed, will receive windrow material, seed and starter fertilizer. The West Bench <br />Road will direct runoff from the upper -most western slope to the south and then in to <br />a downcomer to the drainage drainage ditch along the west side of the landfill where <br />it will be carried north to the wetlands area. <br />4 Areas anticipated to receive concentrated flow on Module 4 and near the storm water <br />retention pond south of Module 4 is now provided with concrete rubble as energy <br />dissipater. <br />5 The ramp leading to the top deck of Module 1 and 3 will be realigned to allow the <br />upper 180 ft. MSL lift to be constructed. This ramp will be crowned to shed surface <br />run-off on both sides. The slope south of the ramp will be protected against erosion <br />by the placement of erosion control mats. <br />Cole] IL t • <br />Leachate management will continue unchanged. Leachate will be returned to the refuse <br />in accordance with the Waste Discharge Requirements issued by the Regional Water <br />Quality Control Board. Leachate from Modules 1 and 3 will be delivered to the infusion <br />point in Module 3. Leachate from Module 4 is delivered to an infusion point in Module 4, <br />approximately 100 feet east of the Module 4 leachate tank. Sufficient infusion points are <br />available to provide infusion of winter leachate production. <br />Title 27 requires that the site be inspected for drainage by October 1St, and that any <br />drainage problems be corrected within a month. All drainage ditches will be re -inspected <br />and cleaned out as necessary to provide unobstructed flow of storm water in accordance <br />with this requirement. All culverts will be re -inspected and cleaned out as necessary as <br />well. Any additional work identified in that inspection will also be completed before the <br />winter rains. <br />NAII North County\09-10 Winterization\NC-Winterization Plan09.doc <br />North County Sanitary Landfill 2 San Joaquin County Public Works <br />Winterization Plan 2008/09 Solid Waste Division <br />