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List of Figures <br /> FIGURE ES-1. PHASED APPROACH TO TRUNK WATERMAIN CONSTRUCTION ..................................... ES-2 <br /> FIGURE ES-2. PHASED REGIONAL WATER SYSTEM WITH A WTP IN RAMSEY....................................... ES-3 <br /> FIGURE ES-3. PHASED REGIONAL WATER SYSTEM WITH A WTP IN DAYTON....................................... ES-4 <br /> FIGURE1-1. STUDY AREA. .................................................................................................................................... 2 <br /> FIGUE 1-2. EXISTING WATER INFRASTRUCTURE.............................................................................................. 5 <br /> FIGURE 1-3. GROWTH AND WATER DEMAND PROJECTIONS FOR THE STUDY AREA................................ 6 <br /> FIGURE 2-2.AVERAGE TOTAL ORGANIC CARBON AT MULTIPLE SITES....................................................... 9 <br /> FIGURE 3-1. PHASED APPROACH TO TRUNK WATERMAIN CONSTRUCTION............................................. 12 <br /> FIGURE 3-2. PHASED REGIONAL WATER SYSTEM WITH A WTP IN RAMSEY.............................................. 13 <br /> FIGURE 3-3. PHASED REGIONAL WATER SYSTEM WITH A WTP IN DAYTON.............................................. 14 <br /> FIGURE 4-1.WATER TREATMENT PLANT LOCATIONS...................................................................................22 <br /> FIGURE 8-1. 2040 CONCEPT LEVEL CAPITAL, O&M,AND LIFECYCLE ANNUALIZED COSTS................... 35 <br /> FIGURE 8-2. 2040 CONCEPT LEVEL CAPITAL, O&M,AND LIFECYCLE ANNUALIZED COSTS................... 37 <br /> List of Tables <br /> TABLE ES-1. CONCEPT LEVEL CAPITAL AND O&M COSTS FOR 2040 DEMAND.................................... ES-6 <br /> TABLE ES-2. CONCEPT LEVEL CAPITAL AND O&M COSTS FOR ULTIMATE DEMAND.......................... ES-7 <br /> TABLE 1-1. HISTORIC AND PROJECTED POPULATION AND DRINKING WATER DEMAND FOR <br /> NORTHWEST METRO COMMUNITIES................................................................................................................... 3 <br /> TABLE 1-2. ULTIMATE WATER DEMAND FOR NORTHWEST METRO COMMUNITIES................................... 3 <br /> TABLE 1-3.2040 AVERAGE AND MAXIMUM DAY DEMANDS BY COMMUNITY............................................... 4 <br /> TABLE 1-4. NORTHWEST METRO MUNICIPAL WELLS AND SUPPLY SYSTEM FEATURES.......................... 4 <br /> TABLE 2-1. PRIMARY CONSTITUENT SUMMARY............................................................................................... 8 <br /> TABLE 2-2.TOTAL ORGANIC CARBON SUMMARY AT MULTIPLE SITES....................................................... 9 <br /> TABLE 3-1. CONCEPT LEVEL COST FOR PHASE Al WATERMAIN AND BOOSTER STATIONS WITH WTP <br /> INRAMSEY............................................................................................................................................................. 15 <br /> TABLE 3-2. CONCEPT LEVEL COST FOR PHASE A2 WATERMAIN AND BOOSTER STATIONS WITH WTP <br /> INDAYTON............................................................................................................................................................. 16 <br /> TABLE 3-3. CONCEPT LEVEL COST FOR PHASE B WATERMAIN AND BOOSTER STATIONS................... 17 <br /> TABLE 3-4. CONCEPT LEVEL COST FOR PHASE C WATERMAIN AND BOOSTER STATION.................... 18 <br /> TABLE 3-5. CONCEPT LEVEL COSTS FOR PHASE D1 WATERMAIN AND BOOSTER STATION................. 19 <br /> TABLE 3-6. CONCEPT LEVEL COST FOR PHASE D2 WATERMAIN AND BOOSTER STATION................... 20 <br /> TABLE 3-7. 2040 BOOSTER STATION O&M COSTS..........................................................................................20 <br /> TABLE 3-8. ULTIMATE BOOSTER STATION O&M COSTS................................................................................ 20 <br /> TABLE 4-2. CONCEPT LEVEL COST FOR 25 MGD SURFACE WATER TREATMENT PLANT....................... 23 <br /> TABLE 4-3. CONCEPT LEVEL COST FOR 50 MGD SURFACE WATER TREATMENT PLANT EXPANSION.23 <br /> TABLE 4-4.ANNUAL OPERATION AND MAINTENANCE COSTS FOR SURFACE WTPS..............................24 <br />