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<br />ARAPAHOE COUNTY WATER AND WASTEWATER AUTHORITY <br /> <br />SECTION 1 <br />EXISTING WATER SYSTEM <br /> <br />Section 1 summarizes the service and operational characteristics of Arapahoe County Water and <br />Wastewater Authority's (ACWWA) water system. Baseline conditions established in this section <br />will be used to evaluate the importance, feasibility and value of water conservation in the <br />following sections. This section also helps the Authority recognize the benefit of managing <br />future water resources using water conservation principles. <br /> <br />1.1 CHARACTERISTICS OF THE EXISTING WATER SUPPLY SYSTEM <br /> <br />ACWW A is a municipal organization managed by the Arapahoe County Commissioners. The <br />ACWW A 5,000-acre service area is located primarily in the southern part of Arapahoe County <br />and is generally bounded by Cherry Creel( Recreation Area to the north, Parl(er Road to the east, <br />the Arapahoe/Douglas County border to the south, and Havana Street to the west. The Authority <br />currently depends on groundwater wells for all of its water supply. The ACWW A service area is <br />shown in Figure 1-1. Also shown in Figure 1-1 are the existing l(ey facilities including locations <br />of the wells, water storage tanl(s, and booster pump stations for the Authority. W orl(sheet 1-1 <br />(Appendix A) provides additional information about the l(ey characteristics of the system. <br /> <br />The ACWW A service is comprised mostly of office complexes, commercial and light industrial <br />areas. Significant multi-family residential development is being added, primarily in the eastern <br />part of the service area. The population of the service area is composed of approximately 25,000 <br />worl(ers during the day and 6,000 full time residents. <br /> <br />ACWW A does not have any treatment plants and receives all of its water supply from <br />groundwater sources. The total annual water supply for the system is 1.29 billion gallons. The <br />system includes approximately 160 miles of pressurized main and 20 miles of lateral main in <br />pipe sizes up to 36 inch. The ACWW A water system consists of one coherent water system that <br />will eventually be brol(en in three separate systems; Potable, Raw and Reuse, but does maintain <br />interconnections with Cottonwood Water and Sanitation District, East V alley Water and <br />Sanitation, and Chaparral Metro District for emergency purposes. <br /> <br />In 2004, the Authority had approximately 1,960 connections with 43% of the connections <br />serving commercial customers. The commercial water sales accounted for 63% of the total water <br />produced by the system. The Authority had a total system demand of 955 million gallons per <br />year. Average-day demand for the system was 2.8 million gallons per day (mgd) with a <br />maximum-day demand of 8.4 mgd. This yields a peal(ing factor of 3 between average-day and <br />maximum-day demands. The peal( hour demand of 16.8 mgd is calculated using a peal(ing factor <br />of 6 from the average day demand. Water demands are summarized in Table 1-1 and Worl(sheet <br />1-1. <br /> <br />Richard P. Arber Associates, Inc. <br /> <br />2 <br /> <br />ACWW A05 <br />