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MWI~C FACILITIES PLAN <br /> <br />TABLE 3,2.1-2 <br />Plant Upgrades and Additional Facilities <br />MWMC Facilities Plan, Eugene-SprinCeld <br /> <br /> Construction Project 'Year Description <br /> <br />Solids Handling 1988 Constructed 4 facultative sludge lagoons and 13 drying <br /> beds at the offsite Biosolids Management Facility. <br /> Constructed new biosolids pump station (operational in <br /> 1989) <br /> <br />SIWF ~dification 1995 Installed new center p~vot ~rdgation system <br /> <br />Gravity Belt Thickener Building 1993 Added new gravity belt thickener buiMing and ~o 3-meter <br /> gravity belt thickeners w~lh polymer system <br /> <br />BMF Dewatering Facill~ 2001 Dewatenng building with three 2-meter belt presses, <br /> added two belt filter press mix tanks, polymer system, <br /> three biosolids presses, solids Ioadout system <br /> <br />Biocycle Fa~ 2004 Anticipate planting t57 acres in poplar trees, constructed <br /> biosohds irrigation p~petine, and b~osolids pump stahon at <br /> the BMF <br /> <br /> Maintenance Facility Modifications 1990 Expansion o~ ex, sting maintenance [ac[l~ty to ~nc]ude <br /> men's room, locke~ ~ooms, storage room, and <br /> miscellaneous locker rooms <br /> <br /> Laborato~ Braiding Addition 2003 New laboratop/buildm9 replaces the existing labo~ato~ <br /> <br /> 3.2.2 Facility Design <br /> <br /> Pretreatment <br /> The pretreatment facility at the WPCF is comprised of irrfluent screw pumps, coarse bar <br /> screens, aerated grit removal and preaeration. Screenings and grit are processed in a <br /> separate building through screenings washer/compactors and grit separation. Table 3.2.2-1 <br /> sttmmarizes the pretreatment facility umt processes and equipment. <br /> <br /> TABLE 3o2.2-1 <br /> WPCF Pretreatment Faci)ity Unit Processes and Equipment <br /> MWMC Facilities Plan, Eugene-Springfield <br /> <br /> Capacity, (eacWtotal <br /> Equipment Type Quantity ~tma/totaib) <br /> Raw Sewage Pumps Helical Screw (capacity at peak flow) 4 2t/63/84 mgd <br /> <br /> Bar Screens Mechamcalty raked, 1/2-inch opening bar 6 35/175/210 mgd <br /> screen <br /> <br /> MW~C_3 0_REVi 1.DOC <br /> <br /> <br />