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<br />City of Northglenn 2007 Water Conservation Plan <br /> <br />1.2 Identify All Sources of Water <br /> <br />Current Supplies and StoraQe <br />The City's primary water supply sources are derived from its ownership of various Clear <br />Creek and trans-basin water rights such as Berthoud Pass Ditch, Church Ditch inches, <br />Farmers Reservoir and Irrigation Company (FRICO) shares and junior Clear Creek <br />rights. Water from all of these sources is delivered to Standley Lake in Jefferson County <br />for storage. The Croke Canal, Farmers Highline Canal, and Church Ditch are the primary <br />facilities that are used to convey water from Clear Creek to Standley Lake. <br /> <br />Berthoud Pass Ditch diverts trans-basin water from the Frasier River Basin in Grand <br />County, through Berthoud Pass Tunnel to Hoop Creek which flows into Clear Creek. <br />The City of Northglenn owns the Berthoud Pass facilities. The City of Golden has a <br />contractual right for a portion of the water right and pays half of the operations and <br />maintenance costs. This water can be diverted from May 15 to October 15 and is <br />principally delivered to Standley Lake via the Church Ditch which runs from Clear Creek <br />in Golden. The City of Northglenn owns 180Jb of the total Church Ditch inches and is <br />two-thirds owner of the ditch structure itself. Ownership of the structure allows <br />Northglenn to use Church Ditch to deliver its Berthoud Pass water as well as its Church <br />Ditch inches. The Church Ditch operating season is April 1 through October 31. <br /> <br />The City of Northglenn also has junior water rights on Clear Creek during "free river" <br />conditions. Free river conditions imply that the flow in the river is high, all senior water <br />rights are being met, and no call on the river exists. During periods of drought, the flow <br />in most rivers is low and the call on Clear Creek is too senior to allow the City to divert <br />these rights. Additionally, Northglenn owns non-tributary groundwater rights and pumps <br />wells along the South Platte River that are mainly an augmentation source. <br /> <br />Northglenn currently has insufficient water supplies to meet drought year demands. In <br />1976, to enhance the City's water supplies, Northglenn developed an innovative <br />agricultural/municipal partnership. The Northglenn/FRICO exchange gives the City the <br />first use of agricultural supplies in Standley Lake and the City returns treated wastewater <br />effluent and a 100/0 bonus to the irrigators. This agreement has effectively extended <br />Northglenn's supplies by the amount exchanged without requiring the City to purchase <br />water rights or expand storage. FRICO shares are delivered to Standley Lake via the <br />Croke Canal from November 1 through March 31. The appropriation date for this water <br />is 1902 which is senior to many upstream rights on Clear Creek but junior to several <br />large reservoirs and water diversions downstream on the main stem of the South Platte <br />River. In average years, between 1,000 and 1,200 af is exchanged. During the 2003 <br />drought, in addition to invoking drought mitigation measures, the City increased the <br />amount of borrowed FRICO agricultural supplies to 1 ,800 af. <br /> <br />More detailed information regarding Northglenn's water supplies and yields will be <br />included in the 2007 Integrated Resources Plan. <br /> <br />Potable Water Treatment and StoraQe <br />The City's raw water supply is stored in Standley Lake. Water from Standley Lake flows <br />by gravity through a 48 inch pipe to a terminal reservoir with a storage capacity of 40 <br />million gallons. The terminal reservoir is located at the Northglenn Water Treatment <br />Facility (WTF) at 2350 West 112th Avenue. The WTF has a 16 million gallons per day <br />(MGD) capacity, of which the City typically uses a 14 MGD instantaneous daily <br /> <br />5 <br />