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<br />Mountain Water <br /> <br />The City uses both CBT and Windy Gap water from the CBT project for its potable <br />water supply. Because the CBT system has storage, both CBT and Windy Gap water <br />can be delivered year-round. Fort Lupton uses its CBT water primarily in the summer <br />months and its Windy Gap water primarily in the winter months. Since CBT is one-time <br />use only water, this raw water supply is ordered and delivered in the summer months <br />when the effluent percentage is low. The effluent percentage is the percentage of water <br />delivered out of the WTP that eventually shows up at the WWTP. In the summer <br />months, the majority of the water delivered from the WTP is used for outdoor lawn <br />irrigation. Because a large portion of the water never makes it to the sewer system, <br />only 350/0 to 400/0 is collected in the sewer systems and delivered to the WWTP. <br />Conversely, in the winter months, little water is used outside. As a result, the water <br />used in the winter collects in the sewer system through sinks, showers and toilets. The <br />effluent percentages reach up to 900/0 in the wintertime. Since Windy Gap is fully <br />consumable, using Windy Gap in the winter months maximizes the reusable component <br />of Windy Gap. There are great efficiencies to operate the system this way. <br /> <br />Figure 3.3 below shows the total water use (potable + non-potable) from each water <br />source. The total estimated City water use is 3,000 ac-ft. Figure 3.4 shows the total <br />surface water versus groundwater use. <br /> <br />Figure 3.3 - Water Use by Source <br /> <br />All values in ac-ft <br /> <br />Total Use = 3,000 ac-ft <br /> <br /> <br />11080 I <br /> <br /> <br />DCBT <br />. Windy Gap <br />. Well - City <br />DWell - Thermo <br />iii Fulton Ditch <br /> <br />Clear Water Solutions, Inc. <br />City of Fort Lupton <br />2007 Water Conservation Plan <br /> <br />9 <br />