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BASIS OF PLANNING <br /> <br />TABLE 5.4.3-2 <br />Biosolids Unit Process, Existing and 2025 Design Capacity <br />MWMC Facilities Plan, Eugene-Springfield <br /> <br /> Process Design Existing Total 2025 CapacRy 2025 Condition <br />Unit Process Description Basis Capacity Need of Need <br />Waste Activated Gravity Belt WWMW 96,500 lb/day 144,720 lb/day Tota~ capacity <br />Sludge Thickening Thickeners <br /> <br />Sohds Stabilization Anaerobic Digestion AA 145,350 gpd 200,000 gpd Total capacity with <br /> minimum of two <br /> tanks <br /> <br />Solids Stabilization Facultative Sludge SLR 27,225 lbs 27,225 lbs VSS Total capacity <br /> Lagoons VSS/day <br />Biosohds Dewatedng WWMVV 307,440 gpd 307,440 gpd Total capacity <br />Biosol~ds Storage Facultative Sludge NA 41 MG 41 MG Total capac~y <br /> Lagoons <br /> <br /> Biosotids Storage Air Drying Beds NA 3130 d~ tons 3130 dry tons Totat capacity <br /> <br /> 5.4.4 Seasonal Land Irrigation <br /> Table 5.4.4-1 summarizes the anticipated 2025 fac~ty needs for seasonal land Lrrigation. <br /> <br /> TABLE 5.4.4-1 <br /> Seasonal Land Applicatio~ 2025 Design Criteria <br /> MWMC Facilities Plan, Eugene-Springfield <br /> <br /> Unit Process Existing CritedafCondiflons Year 2025 <br /> <br /> SITE CHARACTERiSTiCS <br /> Site Delineation <br /> Poplar Trees (non-buffers) 165 acres 425 acres <br /> Grass (buffers) 20 acres 132 acres <br /> Roads 23 acres 23 acres <br /> Feed Store Lot 16 acres 16 acres <br /> Site Capacity (based on non-irrigated loading) <br /> Poplar Trees (liquid biosolids) 1,444 dry tons 2,128 dry tons <br /> Grass (dewatered bioso~ids) 549 dry tons 612 dry tons <br /> Poplar Harvest Rotation 10 years t 0 years <br /> Percent Dry Solids in Applied Liquid Biosolids 1-4% 1 <br /> <br /> MW~tC_50_RL=VS_V~ DOC 5-29 <br /> <br /> <br />