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City of Durango: Animas Basin Residential Buildout and Water Demand Study Finn Ropn 2006 <br />WATER DEMAND ANALYSIS <br />The water demand study is a result of the multiplication of buildout results with <br />water quantity standards in La Plata County's subdivision regulations San Juan <br />County requires a water source for residential units, but does not specify a <br />minimum quantity, so La Plata County standards were applied in San Juan County <br />to determine potential water demand. <br />Table 7 - Water Demand Analysis Summary <br />Constants <br />Gallons Required per Residential Unit per Day 350 <br />Acre Feet per Year per Residential Unit 0.39 <br />Future Residential Unit Buildout Summa <br />Min Max <br />Residential Units Residential Units <br />La Plata County Upstream 2,550 3,220 <br />La Plata County Downstream 2,020 4,750 <br />San Juan County 1850 1850 <br />Total Upstream 4,400 5,070 <br />Total Downstream 2,020 4,750 <br />Acre Feet Requirements per Year <br />La Plata County Upstream <br />995 <br />1256 <br />La Plata County Downstream <br />788 <br />1853 <br />San Juan County <br />722 <br />722 <br />Total Upstream <br />1716 <br />1977 <br />Total Downstream <br />788 <br />1853 <br />2 La Plata County Land Use Code Section 102 -108 requires 350 gallons per dwelling unit per day. <br /><5x 970.382.9153 15 <br />