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TABLE 7.2.1-1 <br />Liqu~ Processes Design Criteria, Existing and 2025 Capacity Needs <br />MWMC Facilities Plan, Eugene-Springfield <br /> <br /> Unit Process Existing Criteria/Conditions Year 2025 <br /> <br />Number of Units NA 4 <br />Diameter NA 20-ft <br />Capacity, each NA 40 mgd <br />Grit Handling <br />Number of Grit Pumps 4 8 <br />Pump Capacity Per Pump/Total Capacity 300 gpml1,200 gpm 4 @ 300 gpm/I,200 gpm <br /> 4@ <br />Pump Type Recessed Impeller, Centrifugal Recessed Impeller, Centrifugal <br />Cyclone Degritters <br />Number of Units 4 8 <br />Cyclone Capacity/Tota~ Capacity 300 gpm/I,200 gpm 4 @ 300 gpm/1,200 gpm <br /> 4@ <br />Classifiers <br />Number of Units 2 4 <br />Type Inclined Screw Inclined Screw <br />Size 12-inch 12-inch <br />Capacity, each/Total Capacity 600 gpm/1,200 gpm 2 @ 600 gpm/1,200 gpm <br /> 2@ <br /> <br />Screenings/Grit Conveyance and Storage <br />Compacted Screenings/Grit Conveyor <br />Number of Units 2 2 <br />Type Shaftless, Dual-Drive Shaftless, Dual~Dnve <br />Capacity/Total Capacity Gnt - 900 lb/hr / 1,800 lb/hr Gdt - 900 lb/hr / 1,800 lb/hr <br /> Screening - 1,400 lb/hr / 2,800 Screening - 1,400 lb/hr / 2,800 <br /> lb/hr lb/hr <br /> <br /> Solids Loadout Conveyor <br /> Number of Units 2 2 <br /> Type Shafftess Screw Shaftiess Screw <br /> Capac~ty/Tota~ Capacity Gr~t - 900 Ih/hr / 1,800 lb/hr Grit - 900 lb/hr / 1,800 lb/hr <br /> Screening - 1,400 lb/hr / 2,800 Screening - 1,400 lb/hr / 2,800 <br /> lb/hr lb/hr <br /> <br /> Screenings/Grit Hopper <br /> Number o[ Units 2 2 <br /> Type Shaftless Screw Sha[tless Screw <br /> Capacity/Tota~ Capacity Grit - 900 lb/hr / 1,800 Ih/hr Grit - 900 lb/hr / 1,800 lb?hr <br /> Screening - 1,400 lb/hr / 2,800 Screening - 1,400 lb/hr / 2,800 <br /> lb/hr lb/hr <br /> <br /> PREAERATION <br /> Preaeration Basins <br /> Number of Units 4 4 <br /> HRT @ QDWA 15 rain 22.8 rain (if used for DWA) <br /> <br /> MWMC_TABLE 7 21.1_REV7 DOC 2 <br /> <br /> <br />