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WASTE DISCHARGE REQUIREMENTS -8- FORWARD INCORPORATED WASTE MANAGEMENT FACILITY CLASS II LANDFILLS CLASS III LANDFILLS CLASS II SURFACE IMPOUNDMENT CLASS II LAND TREATMENT UNIT CLOSURE OF CLASS I LANDFILL SAN JOAQUIN COUNTY 42. Soil contaminated with less than hazardous levels of petroleum hydrocarbons will be aerated at WMU G at a rate of up to 200 cubic yards per day, depending on the degree of contamination and weather conditions. 43. The Discharger's current plans indicate that WMU D will be expanded in three phases. WMU D will have an ultimate capacity of 5.4 million cubic yards and will be filled by 2011. 44. WMU E has a design capacity of 520,000 cubic yards. The new eastern -most pit has a capacity of 260,000 cubic yards and will be filled in four to eight years. New pits will be constructed in WMU E once the first pit is filled. 45. WMU F will have a surface area of approximately five acres. 46. WMU G covers an area of two acres. Up to 200 cubic yards of soil can be aerated there per day. In addition, piles of contaminated soil awaiting aeration will be stored at this WMU. The Discharger has operated a test land treatment plot and demonstrated that the soil contaminated with less than hazardous levels of petroleum hydrocarbons can be transformed to a 'nonhazardous solid waste' within the treatment zone. WMU G may be moved to a new location on the facility as existing WMUs are expanded or as new WMUs are built. 47. WMU H will have a capacity of 1.9 million cubic yards and will reach that capacity by the year 2019. DESIGN OF WASTE MANAGEMENT UNITS 48. Due to the proposed receipt of sewage and water treatment sludges, the Discharger proposes to line selected portions of WMU D and WMU H with 24 inches of compacted clay material, overlain by a dendritic or blanket -type LCRS. Impoundments 49. The Discharger proposes to construct a liner system in accordance with Subchapter 15, Section 2542, for WMU F.