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<br />City of Northglenn 2007 Water Conservation Plan <br /> <br />maximum. The City's peak and average daily demands were 11.77 MGD and 4.99 <br />MGD, respectively. <br /> <br />In 2002, the City built a new finished water storage tank with a capacity of 3 million <br />gallons. Combined with three existing storage tanks, the City has 7.75 million gallons of <br />finished water storage. The City's potable water supply system includes 120 miles of <br />pipe which delivers water throughout the service area. <br /> <br />Wastewater Treatment and StoraQe <br />The Northglenn Wastewater Treatment Facility (WWTF) is located on 320 acres of City <br />owned land in the West % of Section 36, T1 N, R68W in Weld County at the intersection <br />of Weld County Roads 2 and 11. The City's sewer system includes 112 miles of sewer <br />main that collect wastewater and deliver it to the WWTF. <br /> <br />The currently effective Colorado Discharge System (CDPS) Permit for the Northglenn <br />Wastewater Treatment Plant was issued in 2002. This permit will expire on July 31, <br />2007. An application for renewal of this permit has been submitted to the Colorado <br />Department of Public Health and Environment. To adhere to a compliance schedule and <br />meet new ammonia limits by June 1, 2006, the City recently upgraded the WWTF to a 3- <br />stage biological nutrient removal (BNR) system. The upgraded facility has nitrification, <br />denitrification and biological phosphorus removal capacity to meet permitted and future <br />effluent limits. Treatment also includes a system of aerated lagoons. Treated effluent <br />water is stored in Bull Reservoir (4,200 af capacity) until irrigation season when it is <br />released to Bull Canal for use by farmers for crop irrigation. Northglenn has the ability to <br />release effluent water to big Dry Creek or Thompson Ditch both of which are tributaries <br />to the South Platte River. <br /> <br />The WWTF treats an average of 3.7 million gallons per day and has a permitted capacity <br />of 6.5 MGD. Additionally, if more stringent effluent limits are imposed in the future, the <br />WWTF could be upgraded to a 5-stage BNR process. At ultimate build out in 2020, <br />Northglenn will require an estimated capacity of 4.94 MGD to provide service within its <br />corporate boundaries. The remaining unused capacity above the City's needs could be <br />made available to the Cities of Broomfield and Thornton, unincorporated Weld County, <br />and others within the vicinity of the treatment plant who may need wastewater treatment <br />service. <br /> <br />1.3 Identify System Limitations <br /> <br />The amount of FRICO agricultural supplies available for exchange to Northglenn is <br />diminishing due to the gradual transition from agricultural to residential and commercial <br />developments. The City recognizes that it may not be able to depend upon FRICO <br />exchange water to the same extent in the future. To address this and other water supply <br />concerns, the citizens of Northglenn voted to extend a one-half percent (0.500/0) sales <br />and use tax in November 2004. The sales and use tax will be used exclusively for the <br />purchase or lease of water or water rights for use in, and/or augmentation of, the <br />municipal water system. The tax terminates on December 31, 2010. Since the sales <br />and use tax has been in effect, Northglenn has purchased $6.5 million in FRICO- <br />Standley Division and Church Ditch shares and intends to continue purchasing shares <br />as they become available. <br /> <br />A summary of system conditions is provided in Table 3. The City's population is <br />approaching build out levels (when all development currently anticipated will be in place) <br /> <br />6 <br />