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TABLE 7.3.2-1 <br />Solids Processes Design Criteria - Existing and 2025 Capacity Needs <br />MWMC Facilities Plan, Eugbne-Springfield <br /> <br /> Unit Process Existing Criteria/Conditions Year 2025 <br />PRIMARY SLUDGE <br />Primary Clarifiers <br />Pement Volatile Solids <br />Dry Season Average 87% 80% <br />Dry Season Maximum Month 88% 80% <br />Dry Season Maximum Week 88% 80% <br />Wet Season Average 85% 80% <br />Wet Season Maximum Month 88% 80% <br />Wet Season Maximum Week 88% 80% <br />Solids Concentration 4.4% 1% - 4.5% <br />TSS Removal Efficiency <br />Dry Season Average 63% 60% <br />Dry Season Maximum Month 67% 60% <br />Dry Season Maximum Week 71% 60% <br />Wet Season Average 57% 50% <br />Wet Season Maximum Month 67% 50% <br />Wet Season Maximum Week 73% 50% <br />BOD Removal Efficiency <br />Dry Season Average 31% 25% <br />Dry Season Maximum Month 36% 27% <br />Dry Season Maximum Week 47% 31% <br />Wet Season Average 35% 27% <br />Wet Season Maximum Month 43% 28% <br />Wet Season Maximum Week 61% 34% <br />WASTE ACTIVATE SLUDGE (WAS) <br />Percent Volatile Solids <br />Dry Season Average 74% 83% <br />Dry Season Maximum Month 76% 82% <br />Dry Season Maximum Week 78% 82% <br />Wet Season Average 76% 78% <br />Wet Season Maximum Month 78% 75% <br />Wet Season Maximum Week 80% 75% <br /> <br /> WAS Net Yield (lbs WAS/lbs BOD) <br /> Dry Season Average 0.87 <br /> Dry Season Maximum Month 0.92 <br /> Dry Season Maximum Week 0.99 <br /> Wet Season Average 1.32 <br /> Wet Season Maximum Month 1.36 <br /> Wet Season Maximum Week 1.55 <br /> <br />SOLID PROCESSING OPERATIONAL CRITERIA <br /> <br />Thickening 16-24 hfs/day, 7 days/wk 24 hfs/day, 7 days/wk <br /> One standby unit One standby unit <br /> <br />MWMC_TABLE 7.32-1_REV4.DOC <br /> <br /> <br />