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<br />Town of Castle Rock <br />Water Conservation Plan <br /> <br />have proven cost effective and have reduced system water loss by approximately one percent <br />(5.6 millon gallons) in 1990. <br /> <br />Finally, public education is an important element in the effectiveness of the water <br />conservation program. Promotion of water saving techniques through demonstration, <br />publication, and incentive programs are tools to increase public awareness of water as a <br />limited resource, and thus encourage its conservation. <br /> <br />4.2 Average/Peak Daily Demand Reduction <br /> <br />During 1990, the average daily water demand for the Town was approximately 1.5 million <br />gallons, or 174.4 gallons per capita per day usage. This amount of water use reflects <br />moderate conservation practices imposed on town residents by water restriction ordinances, <br />and new home plumbing codes. Through additional ordinances, building code restriction <br />on in-house water facilities, efficient landscaping practices and education, one could <br />anticipate that the average daily demand could be cut by 30 percent by the year 2010 when <br />the Town has an expected population of 25,000. A graphical display of the reduction in <br />average daily water demand under water conservation is shown on Figure 1. Table 4-1 <br />offers computations of average daily demand with the probable conservation rate that might <br />be applicable to the Town. <br /> <br />The number of wells the Town is required to install and operate is primarily driven by the <br />Town's peak daily demand. This amount of water is primarily related to irrigation. By <br />implementing more efficient home irrigation practices, peak daily demands are expected to <br />be reduced by about 16 percent. <br /> <br />Figure 2 is an illustration of peak daily demands projected into the future without <br />conservation. Also shown are projected demands once the probable conservation rate is <br />achieved. . <br /> <br />To illustrate the financial attractiveness of conservation when applied to only efficient <br />irrigation practices and xeriscaping, the capital cost and annual cost of future water supply <br />under the scenario of augmentation and exchange using Plum Creek and non-tributary wells <br />has been recalculated. The results are shown in Table 4-2. <br /> <br />By implementation of efficient irrigation practices and under the use of the alluvial and non- <br />tributary wells scenario water development would cost $33.1 million for capital expenditures <br />and $3.7 million in annual operation costs. By comparing the cost of this scenario under <br />normal water use with alluvial and Denver Basin wells, a savings in capital cost of $6.6 <br />million should be realized. <br /> <br />18 <br />