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City of Pequot Lakes <br />WAC & SAC Assistance <br />July 19, 2012, 8:30 a.m. Committee Meeting <br />Pequot Lakes City Hall <br />Wells z $0.1 million <br />Water Treatment Plant $2.1 million <br />Water Tower ,'z� $0.7 million <br />Land, Eng., Admin. Legal, and Financing � $0.9 million <br />Total Estimated Water Capital Costs = $3.8 million <br />The first item to calculate is the equivalent residential connection (ERC) amount per year. <br />The first item to calculate is the equivalent residential connection (ERC) amount per year. <br />Residential water flow 9,500,000 gallons per year <br />Water residential connections 245 ERCs <br />Water ERC 38,800 gallons per year <br />The next item to calculate is the capacity of the water treatment plant / system. This is a <br />somewhat variable number based on the hours the plant operates, the gallons per square <br />foot applied to the filters, the resulting water quality desired, and any water tower / <br />storage / demand limitations on the system. To keep as simple as possible, we will take a <br />look at the water treatment plant capacity. <br />Water capacity at 300 gpm and 8 hrs /day = 52,560,000 gallons per year <br />Water capacity at 300 gpm and 12 hrs /day = 78,840,000 gallons per year <br />Water capacity at 300 gpm and 16 hrs /day = 105,120,000 gallons per year <br />One way is to calculate the WAC using the full system capacity. <br />"Permitted" water flow � 78,000,000 gallons per year <br />Water ERC z 38,800 gallons per year <br />Water capacity 2,010 ERCs <br />Estimated water capital cost $3,800,000 <br />Water cost per ERC, or WAC $1,890 <br />Another way is to calculate the WAC using the remaining system capacity. <br />Comments? <br />"Permitted" water flow z� 78,000,000 gallons per year <br />Water flow �z 27,000,000 gallons per year <br />Remaining water capacity c� 51,000,000 gallons per year <br />Water ERC z; 38,800 gallons per year <br />Remaining water capacity z 1,314 ERCs <br />Estimated water capital cost z $3,800,000 <br />Water cost per ERC, or WAC �-- $2,900 <br />Page 4 of 4 <br />J:10130B -City of PepotL es10130B0048WAC &SAC Assk=ceVMB004S.000- WAC &SAC Assist=mce mrespondence\20120719C6m tree meeting hmdootdoc <br />