WSP06826 - Laserfiche WebLink

Home Browse Search

I I I I I I I I I I I I I I I I I I I PLEASANT V ALLEY PIPELINE ENVIRONMENTAL ASSESSMENT Fort Collins. Fort Collins provides drinking water to about 110,000 people from its water treatment plant (WTP) near the Soldier Canyon Dam of Horsetooth Reservoir. The City of Fort Collins currently obtains its raw water supply from native supplies from the Poudre River delivered via two existing pipelines and C-BT water from Horsetooth Reservoir. The current demands at the treatment plant averagc about 26 mgd throughout the year. A peak demand of 44 mgd occurs during the month of July and peak daily demand reaches 73 mgd. The existing pipelines from the Poudre River have a capacity of 20 mgd. The Fort Collins water system is highly dependent upon additional water from Horsetooth Reservoir to meet peak demands. Any interruption in service from the Soldier Canyon Dam outlet works of Horsetooth Reservoir would leave Fort Collins dependent upon available Poudre River flows. Reliance on only the existing maximum pipeline delivery capacity of 20 mgd from the Poudre River would result in severe shortages of water during most of the year. The PVPL would provide a redundant source of supply for the Fort Collins WTP to alleviate shortages caused by interruptions in service from Horsetooth Reservoir. The PVPL would allow Fort Collins to make more efficient use ofPoudre River water rights owned by the City. Fort Collins presently owns a variety of water rights from the Poudre River, including irrigation company shares that have been converted to municipal use. Under current operations, much of this water is leased for agricultural uses, but will be used for municipal purposes as Fort Collins' water demand increases and agricultural lands are developed for residential or urban land use. The PVPL would provide increased means of delivering this Poudre River water to the WTP. Current diversions from the Poudre River would not be increased, but some water presently diverted and used for agriculture would be used by Fort Collins for municipal purposes in the future. The PVPL also would allow Fort Collins the option of selecting between its Poudre River and Horsetooth Reservoir sources to manage the quality of the raw water supply to the water treatment facility. Soldier Canyon Filter Plant. The Soldier Canyon Filter Plant (SCFP) is located at the downstream toe of Soldier Canyon Dam on Horsetooth Reservoir. The plant provides water to the East Larimer County Water District, Fort Collins-Loveland Water District, and North Weld County Water District (Tri-Districts). Combined, the three districts provide drinking water to about 60,000 people, with an average daily demand of 12 mgd and a peak day demand of24 mgd. The source of all water to the SCFP is C-BT water from Horsetooth Reservoir. Any interruption of service from the Soldier Canyon Dam outlet works would leave the plant without a source of water. The PVPL would provide a redundant source of supply to the SCFP in case of a disruption in service from the Horsetooth Reservoir supply. The pipeline also would allow the SCFP to increase its water supply to serve future planned growth within the combined service areas of the Tri- Districts. In addition, the PVPL would allow SCFP the option of selecting between its Poudre River and Horsetooth Reservoir sources to manage the quality of the supply to the treatment plant. Greeley. Greeley provides drinking water to about 78,000 people from the two Boyd Lake WTPs and the Bellvue WTP. The Boyd Lake WTPs No. I and No.2 have a total capacity of 40 mgd and treat water from the Big Thompson River and C-BT water from 3