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Table 3-5 provides a concept level cost for Phase D1- <br /> Table 3-5.Concept Level Costs for Phase D1 Watermain and Booster Station. <br /> Item Quantity Units Unit Cost Total Cost <br /> New Water Main <br /> 36" Open Cut DIP 523200 Feet $500 $26,1007000 <br /> Lateral Benefit 263000 Feet ($200) ($5,2007000) <br /> 36" Jacked Road/River 1 450 Feet $4 000 $5 800 000 <br /> Crossing ' <br /> Booster Stations <br /> New 30 MGD (Dayton, 1 Each $5 000 000 $5 000 000 <br /> Rogers, Corcoran) ' <br /> New 25 MGD (Rogers, <br /> Dayton High Zone, 1 Each $47500,000 $4,500,000 <br /> Corcoran) <br /> Expansion 10 MGD <br /> (Dayton High Zone, 1 Each $2,0001000 $2,000,000 <br /> Corcoran) <br /> New 15 MGD 1 Each $2 500 000 $2 500 000 <br /> (Corcoran) ' <br /> Easements/Land 270 000 Square $6 $1 600 000 <br /> Acquisition Feet ' <br /> Environmental 10 Mile $50,000 $5007000 <br /> Subtotal $4258009000 <br /> Contingency (30%) $1258007000 <br /> Eng/Admin/Legal (20%) $1151007000 <br /> Total Phase D1 $6790009000 <br /> 3.9 Phase D — Scenario 2 — Complete 36" Watermain Loop - WTP in Dayton <br /> Phase D —Scenario 2 (Phase D2) consists of completing the 36" watermain loop with additional <br /> watermain in Dayton and Ramsey, which also includes a second Mississippi River crossing. The <br /> Phase D2 watermain and booster station are shown on Figure 6 in Appendix C. The Phase D <br /> watermain is hydraulically necessary to supply ultimate water demands. The Phase D watermain also <br /> provides redundancy and reliability because it completes a loop and can supply water from two <br /> directions. The Phase D2 watermain would be constructed after 2040 and would meet the ultimate <br /> demands of the Northwest Metro communities. <br /> Table 3-6 provides a concept level cost for Phase D2. <br /> Page—19 1 METROPOLITAN COUNCIL <br />