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WASTE DISCHARGE REQUIREMENTS -13- <br /> FORWARD INC.,FORWARD LANDFILL <br /> SAN JOAQUIN COUNTY <br /> 27. Each old location of WMU G must be closed according to Chapter 15. Closure shall include <br /> testing of the old location for the parameters described in the land treatment section of Monitoring <br /> and Reporting Program No. 94-_ . <br /> 28. The maximum depth of the treatment zone shall not exceed five feet from the initial soil surface. <br /> 29. Treated soil from WMU G shall be used as alternative daily cover in compliance with Title 14, <br /> foundation material for final cover, or discharged to a landfill unit in compliance with this Order. <br /> 30. Soil piles stored in WMU G shall at all times be completely covered with a synthetic liner, except <br /> during treatment. <br /> 31. Soils containing contaminants other than petroleum hydrocarbons and BTX (for example, <br /> chlorinated hydrocarbons, heavy metals,etc.)shall not be placed in WMU G without prior <br /> approval of the Executive Officer. <br /> 32. WMU G shall be graded so that runoff will collect in a sedimentation pond dedicated to that unit. <br /> WASTE PILE SPECIFICATIONS <br /> 33. Waste piles constructed for treatment of petroleum contaminated soils shall be within the area <br /> designated for WMU G. Design and construction plans and specifications shall be submitted to <br /> the Executive Officer for approval before construction of any waste pile. After construction, a <br /> construction quality assurance report shall be submitted to the Executive Officer and approved by <br /> Board staff prior to operation of the waste pile. <br /> DRYING OPERATION SPECIFICATIONS <br /> 34. Sludges from water or wastewater treatment plants may be disposed of by spreading on a one <br /> foot thick, compacted clay pad that is bermed to prevent runoff. Within 48 hours, this waste shall <br /> be disked into the clay pad in such a manner as to allow drying of the waste with no percolation <br /> of liquid or waste constituents through the bottom of the clay pad. Once the waste has dried, it <br /> and any soil it has contacted shall be moved to WMU D, or WMU H for disposal. The clay pad <br /> shall be rebuilt to its original thickness after each drying cycle. This operation may be done from <br /> May through October. <br />