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MWMC FACILITIES PLAN <br /> <br />FIGURE 5.1 <br />Wet Weather Maximum Month Effluent Concentration Requirements <br />Based on Existing Mass Load Limitations and Projected Flows <br />MWMC Facilities Plan, Eugene-Springfield <br /> <br /> 35.0 l ..... 150 <br /> 142.1 <br /> <br /> Current TSS Effluent <br /> 30.0 ....... Z30 <br /> Concentration t~mJt <br /> <br /> 110.8 <br /> 25.0 '- 24.7 __ Current CBOD Effluent _ _. 110 <br /> 23 2 lO~,." Concentration L;mit <br /> 22 4 <br /> 9B 2 <br /> <br /> 19.5 <br /> 20.0 ~3S ~3 _/~ 90 <br /> Bg~s <br /> <br /> 85% TSS Removal ~'~ <br /> ConcentraUon ~~ <br /> ........... ~ ?/~ ......... <br /> ~5.0 ~ - - - - ~6~ ~-- ~ 70 <br /> : 5~-'~ ~3.~ <br /> <br /> 10.0 - 50 <br /> 2005 2010 2015 2020 2025 2030 2035 2040 2045 2050 <br /> <br /> Year <br /> <br /> ~ CBOO Concentration ~-TSS Concentration ~ Max Nonth Wet Weati~er Flow --X--Average we~ Weather FJow <br /> <br />Dry weather maximum week mass limitations for both CBOD and TSS as outlined in the <br />NPDES permit are based on the average dry season flow of 49 mgd. Concentration limits are <br />also specified in the NPDES permit. Figure 5.1.3-3 illustrates the anticipated maximum week <br />CBOD and TSS concentrations that result from projected flows and tmchanged mass <br />limitations as specified in the existing NPDES permit. These are shown relative to the <br />anticipated concentration limits. Percent removal limits do not apply on a maximum week <br />basis. <br /> <br /> 5-6 MWMC_5 o_REV8 DOC <br /> <br /> <br />