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NTM CWCB Water Conservation Plan Grant Application Page 4 of 11 <br />North Table Mountain Water and Sanitation District is currently a covered entity and its <br />service area is proj ected to continue growing. <br />5. Background Characterization of Water System and Potential Growth: <br />(a) Current and past years per capita water use for the last five years: <br />North Table Mountain Water and Sanitation District's surface water treatment plant <br />currently treats about 5 million gallons per day of water during peak season. Service area <br />population, total annual water use and gallons used per capita per day (gpcd) are shown <br />in Table 3 for the years 2000 through 2006. <br />Table 3: Service Area Population and Water Use <br /> <br /> <br />Year Estimated <br />Service Area <br />Population Total Annual <br />Use (1,000,000 <br />gallons <br /> <br />GPCD <br />2000 7430 753 278 <br />2001 7823 691 242 <br />2002 7944 642 221 <br />2003 8125 588 198 <br />2004 8560 517 166 <br />2005 8911 628 193 <br />2006 9353 772 226 <br />Average 8307 656 218 <br />Estimated service population was calculated by muliplying number of <br />residential accounts (owners and renters) by 2.62 people per household, which <br />is the average household number for 2000 census blocks in and around NTM <br />service area. <br />Total annual use includes all billing database use, not just residential uses. <br />GPCD =average gallons water used per capita per day <br />(b) Past, current and predicted population served by the City: <br />Population estimates for NTM for the years 2000 through 2006 are provided in Table 3. <br />In December of 2006 NTM completed an evaluation of growth potential in and around its <br />existing service area. Using landownership information, satellite imagery, topographic <br />data, and density assumptions, an estimate of developable surface area was made. Within <br />NTM's current service area approximately 77% of the area is developed with an <br />estimated 1,338 acres of developable land remaining. In addition, the majority of land <br />west of Highway 93, which is not currently in NTM's service area, could be developed. <br />This area encompasses approximately 1,176 acres. Assuming a density of three houses <br />per acre, if all the land in NTM's service area and west of highway 93 were developed at <br />three houses per acre NTM's service population could triple to include an additional <br />7,500 residences. <br />