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2040 Trunk System Analysis <br />Existing sanitary sewer as-builts for pipe diameter and slopes were utilized to determine the ability of the existing trunk system to convey future <br />wastewater flows. Future trunk mains and lift stations will be extended to accommodate future development, which in turn will increase the flows <br />conveyed to the existing trunk system. These future 2040 trunk mains and lift stations are included in Map 10-4. The MCES interceptor was not <br />analyzed in this report. <br />As discussed in Section 10.2, all City lift stations have sufficient capacity for additional growth in sanitary sewer flows. As shown in the following <br />table, Lift Station 2 will require an upgrade to accommodate the 2040 peak flows; all other existing lift stations have sufficient capacity for 2040 <br />peak sanitary sewer flows. Table 10-10 below shows existing and proposed lift station pump capacity as compared to future 2040 peak flow. <br />To accommodate ultimate future flows from the eastern Districts, trunk connections will need to be installed into the existing system. Flows <br />from District V will be directed to the existing Lift Station 4, and Lift Station 4 would need to be reconstructed to accommodate ultimate flows of <br />9,600 gpm. Flows from District U will be directed to the future Lift Station 04, and Lift Station 04 would need to be constructed to accommodate <br />ultimate flows of 6,700 gpm at the time required to serve the ultimate development. <br />It should be noted that, in addition to trunk lift stations, local lift stations may be necessary as development occurs. All local lift stations will be <br />constructed and financed privately. <br />ITUW 2040 COMPREHENSIVE PLAN UPDATE <br />If <br />:111220Mc5YA <br />for review only <br />Table 11-10 Future 2040 Trunk Lift Station Analvsis <br />1 <br />Existing <br />380 <br />314 <br />66 <br />2 <br />Existing <br />400 <br />411 <br />-11 <br />3 <br />Existing <br />190 <br />77 <br />113 <br />4 <br />Existing <br />350 <br />321 <br />29 <br />5 <br />Existing <br />100 <br />44 <br />56 <br />6 <br />Existing <br />120 <br />102 <br />18 <br />7 <br />Existing <br />100 <br />40 <br />60 <br />8 <br />Existing <br />200 <br />75 <br />125 <br />9 <br />Existing <br />515 <br />295 <br />220 <br />10 <br />Existing <br />90 <br />49 <br />41 <br />A3 <br />Proposed <br />- <br />425 <br />- <br />16 <br />Proposed <br />- <br />115 <br />- <br />N1 <br />Proposed <br />- <br />220 <br />- <br />04 <br />Proposed <br />- <br />240 <br />- <br />P1 <br />Proposed <br />- <br />985 <br />- <br />Q2 <br />Proposed <br />- <br />470 <br />- <br />Q4 <br />Proposed <br />- <br />660 <br />- <br />R1 <br />Proposed <br />235 <br />COMPREHENSIVE SANITARY <br />SEWER PLAN <br />W <br />