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Figure 3-1.Phased Approach to Trunk Watermain Construction <br /> PHASE Al(WTP in Ramsey):A backbone 36" <br /> watermain is constructed connecting Ramsey, <br /> Dayton,and Rogers. Serves water demands <br /> through 2040, <br /> PHASE A2(WTP in Dayton):A backbone 36" <br /> watermain is constructed connecting Ramsey, <br /> PHASE D: Dayton,and,Rogers. Serves water demands <br /> Ultimate through 2040. <br /> 4 with Loop <br /> Ultimate System PHASE B: Ex m tend 16" at to Co n rcora , <br /> All Communities meets 2 MGD demands. <br /> Expand to PHASE Q Exte nd 36"waterm ai n to Corcoran <br /> Corcoran meets Corcoran ultimate demands. <br /> PHASE A. PHASE DI(WTP in Ramsey): Complete 36" <br /> 2040— Dayton, watermain loop-,meets ultimate demands. <br /> Ramsey,Rogers PHASE D2(WTP in Dayton)-. Complete 36"' <br /> watermain loop.meets ultimate demands. <br /> The following sections present components and estimated capital costs of the various watermain <br /> phases. <br /> 3.3 Lateral Benefit <br /> When cities construct new trunk watermain in an area that was previously not served by municipal <br /> water, they often assess the cost of the trunk watermain to properties in the area. The assessments <br /> are legal because the new trunk watermain increases the value of the property in the area. This <br /> assessment is sometimes referred to as "lateral benefit." <br /> The cost tables in this section assume that a portion of the new trunk watermain would be eligible for <br /> lateral benefit. The cost of the lateral benefit is assumed to be 12 Y)watermain at a cost of$200 per foot. <br /> 3.4 Phase A — Scenario I Wa termain — WTP in Ramse y <br /> Phase A—Scenario 1 (Phase Al)watermain with the WTP in Ramsey consists of a 36" backbone <br /> watermain connecting the Ramsey, Dayton, and Rogers water systems. The WTP would provide water <br /> directly to the Ramsey system at an HGL of 1030 and the 36)) watermain would be at an HGL of 1060 <br /> to match the northern Dayton pressure zone. Booster stations would be constructed to serve Rogers at <br /> an HGL of 1080 and Dayton's southern pressure zone at an HGL of 1110. The Phase Al watermain <br /> and infrastructure is shown on Figure 1 in Appendix C. The trunk watermain is sized to meet ultimate <br /> demands, but the Phase A WTP is sized for 2040 demands. The booster stations are sized to meet <br /> 2040 demands. <br /> Table 3-1 provides a concept level cost for Phase Al <br /> Page—12 1 METROPOLITAN COUNCIL <br />