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TABLE 7.2.1-1 <br /> Liquid Processes Design Criteria, Existing and 2025 Capacity Needs <br /> MWMC Facilities Plan, Eugene-Springfield <br /> <br /> Unit Process Existing Criteria/Conditions Year 2025 <br /> Number of Hypochlodte Pumps for Primary NA 2 <br /> Diversion Flow <br /> Hypochlorite Usage <br /> Average Dose NA 7.0 mg/L <br /> Average @ WWPH NA 8,960 gal/day <br /> Bisulfite Dechlorination (primary diversion flow stream) <br /> <br /> Solution Strength (assumed) NA 38% <br /> Chlorine Residual (assumed) NA <br /> Number of Bisulfite Pumps for Primary NA 2 <br /> Diversion Flow <br />Bisulfite Usage <br />Average Dose NA 1.1 mg/L <br />Average @ WWPH NA <br />ODOR CONTROL <br />Biofilter <br />Type Organic Media NA <br />Cells 3 NA <br />Capacity, Each/Total 15,000 cfm/18,000 cfm NA <br />Bioscrubbers <br />Number of Bioscrubbers NA 5 <br />Number of Exhaust Fan NA 5 <br />Vessel Maximum Diameter NA 14 feet <br />Capacity, Each/Total NA 8,200 ¢fm/41,000 cfm <br />Minimum Gas Residence Time NA 12 seconds <br />Maximum Gas Loading Rate NA 60 cfm/ft2 <br />Minimum Media Depth NA 12 feet <br />Media Type NA Porous Volcanic Rock <br />Media Size NA 0.75 to 1.5 inches <br />Media Pressure Drop NA 0.3 inches WC/ft <br />Minimum Inlet temperature NA 50 °F <br />Maximum Inlet temperature NA 100 °F <br />Scrubbant Recirculation Rate NA 0.0236 gpm/cfm <br />Basin pH setpoint NA 2.0 <br />Makeup Water Source NA Secondary Effluent <br />Inlet Hydrogen Sulfide Concentration NA 5 ppm <br />OUTFALL <br /> <br />Outfall Control Structure <br />Type 1 Bank Ouffall I Bank Outfall <br /> I Submerged Outfall 1 Submerged Outfall <br />Bank Outfall Diameter 84 inch 84 inch <br />Submerged Ouffall Diameter 96 inch 96 inch <br />Diffuser on 96-inch Submerged Outfall <br /> <br />MWMC_TABLE 7.2.1-1_REV7,DOC 7 <br /> <br /> <br />