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Town of Windsor Agenda Item 30a September 13, 2013 (Updated September 30, 2013) Page 3 of 5 Project Description The purpose of this project is to provide the Town new water storage to help meet its current and future water supply needs. This CWCB loan will finance the purchase of a reservoir, the design and construction of the reservoir infrastructure, and the purchase of water rights. To achieve this purpose, the Town analyzed multiple potential storage sites and water supplies as described below. TABLE 2: STORAGE SITE ALTERNATIVES Site Estimated Comments Storage AF Projected Total Due to small size compared to Windsor's ultimate need and a Everitt Storage 100-125 higher cost to develop due to its location away from the river this Irrigation Ditch # of alternative was not selected. Eastman Park Direct Flow Due to the small size compared to Windsor's ultimate need and its South 200 proximity to the Town and residential areas making traffic issues Share A during construction a concern, this alternative was not selected New Cache la Poudre Irrigating Com an 2,499.69 Due to the small size compared to Windsor's ultimate need and Serfer Pit 200 higher cost to develop due to its location away from the river, this Cache la Poudre Reservoir Company 2,646.5 alternative was not selected Kyger Reservoir 1,000 — 1,100 Selected Alternative — See comments below Selected Storage Alternative — Kyger Reservoir: Kyger Reservoir meets the Town's goals by having sufficient capacity to meet their water supply needs. Additionally, this reservoir has good exchange potential with the Kern Reservoir due to its location and storage at this location would allow the Town to more fully utilize its existing eight New Cache shares. It is also at an ideal location for augmenting the Town's and Weld County School District RE -4's well pumping. Kyger Reservoir will produce 1,000 to 1,100 acre -feet of storage and is located between the Greeley No. 2 Canal and the Cache la Poudre River at the northwest corner of Highway 392 and N County Line Rd in the Windsor GMA. The reservoir is a gravel pit that has been lined with clay to prevent groundwater seepage. The liner is undergoing the State Engineer's Office (SEO) required 90 -day leak test which will be completed this November. Upon successful completion of the 90 -day leak test, the gravel pit will be recognized by the SEO as a lined reservoir capable of water storage. The Town will purchase the reservoir and develop its infrastructure upon SEO's liner certification and final confirmation of its storage capacity. Reservoir infrastructure improvements include rehabilitating an existing lateral off the Greeley No. 2 ditch, installing a new pump station to divert water from the river directly into the reservoir, and a pump station to deliver reservoir water directly to the river. The Town is contracted to purchase the reservoir for $2,750 per acre -foot of storage. TABLE 3: WATER SUPPLY ALTERNATIVES EVALUATED Selected Supply Alternative A — New Cache la Poudre Irrigating Company (New Cache): New Cache has direct flow rights for diversions from the Cache la Poudre River through the Greeley No. Total Projected Projected Total Decreed Water CU per CU per Irrigation Ditch # of Flowrate Availability Direct Flow Storage Shares efs Share A share New Cache la Poudre Irrigating Com an 2,499.69 650 May — Sep 6.6 - Cache la Poudre Reservoir Company 2,646.5 - - - 1.3 Lake Canal & Reservoir Company 160 158.35 May —Jun 14 10 Whitney Irrigating Ditch Company 320 61.18 Apr — Sep 14 B.H. Eaton Ditch Company 192 41.7 Apr — Oct 10.8 - Box Elder Ditch Company 64 52.76 Apr - Oct 45 Selected Supply Alternative A — New Cache la Poudre Irrigating Company (New Cache): New Cache has direct flow rights for diversions from the Cache la Poudre River through the Greeley No.