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City of Pequot Lakes <br /> WAC & SAC Assistance <br /> �... July 20, 2012 <br /> One way to calculate the SAC is to use the full system capacity. <br /> Permitted wastewater flow 45,000,000 gallons per year <br /> Wastewater ERC 34,700 gallons per year <br /> Wastewater capacity 1,297 ERCs <br /> Estimated wastewater capital cost $4,000,000 <br /> Wastewater cost per ERC, or SAC $3,090 <br /> Another way to calculate the SAC is to use the remaining system capacity. <br /> Permitted wastewater flow 45,000,000 gallons per year <br /> Wastewater flow 23,000,000 gallons per year <br /> Remaining wastewater capacity 22,000,000 gallons per year <br /> Wastewater ERC 34,700 gallons per year <br /> Remaining wastewater capacity cz 634 ERCs <br /> Estimated wastewater capital cost $4,000,000 <br /> Wastewater cost per ERC, or SAC $6,310 <br /> WAC Calculations <br /> An important variable is the capital cost of the wastewater system that the WAC is being <br /> applied to. <br /> Water capital costs can include wells,water treatment plants,water towers, maybe main <br /> line or looping watermains, land, engineering, administrative, legal, and financing costs. <br /> We have estimated a value of the present system as follows: <br /> Wells $0.1 million <br /> Water Treatment Plant $2.1 million <br /> Water Tower $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 /> 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 it straightforward, we will take a <br /> look at the water treatment plant capacity. <br /> Page 4 of 5 <br /> J:\0130B-City of Pequot Lakes\0130B0048-WAC&SAC Assistance\0130B0048.000-WAC&SAC Assistance\Correspondence\20120720-Committee handout.doc <br />