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<br />Laraest Water Users <br /> <br />As shown in Figure 4.1 , the bulk of the City's water use is generated from Residential, <br />Commercial/Industrial and City Irrigation. The largest Commercial/Industrial user is <br />Thermo, using 1,160 ac-ft of the total 1 ,310 ac-ft in this category. The largest City <br />Irrigation user is the Coyote Creek Golf Course, using 310 ac-ft of the 460 ac-ft. The <br />water use from Thermo and the golf course is summarized in the following table. <br /> <br />Table 4.1 - Non-Potable Water Use by Two Largest Water Users <br /> <br /> Total Water Use in 0/0 of Total per <br />Customer (Category) Water Use Customer Category Customer Category <br /> ( ac-ft) ( ac-ft) (0/0 ) <br />Thermo (Commercial/Industrial) 1160 1310 890/0 <br />Golf Course (City Irrigation) 310 460 670/0 <br /> <br />Demand Forecast <br /> <br />Residential Water Demand <br /> <br />To properly assess future water demands, it is first necessary to conduct an analysis of <br />historical and projected population growth. Population data was taken from the <br />Colorado Department of Local Affairs (CDOLA). CDOLA uses Census data as well as <br />research performed by the State Demographer to determine population. The City's <br />population is projected to grow at 30/0 per year. This projected growth rate is based on <br />the number of future taps that the City is currently committed to serve, the construction <br />of proposed commercial developments, and recent interest shown in developing new <br />subdivisions, including lands to the south of the City proposed to be included in the <br />Denver Avenue Special Improvement District. <br /> <br />In general, Weld County is expected to experience a substantial increase in growth <br />rates due to proposed residential developments. This is partially a consequence of the <br />Denver International Airport and completion of E-470 and other commercial/industrial <br />developments in Weld County and adjacent counties. <br /> <br />As mentioned earlier, there are considerable discrepancies between the City's billing <br />records and the City's master meter records. For example, the billing records show that <br />the 2005 residential water use is 593 ac-ft and the City has 1 ,908 taps recorded for <br />2005. Using the estimated City population of 7,200 people from CDOLA, this equates <br />to a residential per-capita usage of 74 gallons per capita per day (gpcd), a 3.8 persons- <br />per tap ratio, and a water use of 0.3 ac-ft per tap - all of which seem out of line with <br />industry standard values. Most planners expect a per-capita water use of 150 to 190 <br />gpcd, estimate 2.8 to 2.9 persons per tap, and use 0.5 to 0.6 ac-ft per tap. <br /> <br />One source for the error is the difference between a "tap" and a Single Family <br />Equivalent (SFE). The SFE concept provides a means to measure usage on an <br /> <br />Clear Water Solutions, Inc. <br />City of Fort Lupton <br />2007 Water Conservation Plan <br /> <br />18 <br />