Laserfiche WebLink
Image Placeholder <br />ACOMPREHENSIVE SANITARY <br />SEWER PLAN <br />2040 COMPREHENSIVE PLAN UPDATE DRAFT Dec14-17 <br />for review only <br />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 O4, and Lift Station O4 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 />Table 11-10 Future 2040 Trunk Lift Station Analysis <br />Lift <br />Station <br />Area <br />Existing or <br />Proposed <br />Pumping <br />Capacity <br />(gpm) <br />2040 <br />Peak <br />Hour <br />Inflow <br />(gpm) <br />Remaining <br />Pumping <br />Capacity <br />(gpm) <br />1 Existing 380 314 66 <br />2 Existing 400 411 -11 <br />3 Existing 190 77 113 <br />4 Existing 350 321 29 <br />5 Existing 100 44 56 <br />6 Existing 120 102 18 <br />7 Existing 100 40 60 <br />8 Existing 200 75 125 <br />9 Existing 515 295 220 <br />10 Existing 90 49 41 <br />A3 Proposed -425 - <br />I6 Proposed -115 - <br />N1 Proposed -220 - <br />O4 Proposed -240 - <br />P1 Proposed -985 - <br />Q2 Proposed -470 - <br />Q4 Proposed -660 - <br />R1 Proposed -235 -