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7 CWCB Construction Fund Grant Application Grand Valley Water Management Project 2. What is the purpose of this grant application? Check one. New Project ---X- Rehabilitation or replacement of existing facility Enlargement of existing facility Emergency Repair Other ( describe) 3. If the project is for rehabilitation of an existing reservoir, is the reservoir currently under a storage restriction order from the State Engineer? YES _ NO_ 4. General location of the project. (Please include county, and approximate distance and direction from nearest town, as well as legal description, ifknown): Project is in Mesa County and extends from near Cameo, Colorado to Mack, Colorado. It also includes the towns of Palisade, Grand Junction, Fruita, and Loma. 5. Please provide a brief narrative description of the proposed project including purpose, need, facilities, types of water uses to be served and service area. (Attach separate sheet if needed. PROPOSAL: Improve the Government Highline Canal system and automate its operation to, increase efficiency, and make conserved project water available to support recovery of endangered fish. Canal improvements would help balance canal water supplies and user demands. Conserved water not needed for irrigation would be used to increase flows in the IS-Mile Reach of the Colorado River. The proposal would be implemented by Reclamation in cooperation with the Grand Valley Water Users Association (GVWUA) and the RIP. To improve and automate the canal operation, we propose to install water surface elevation control structures (checks) and monitoring devices for operation by GVWUA. Water in the canal, not needed for irrigation, would be returned to the river through a bypass pipeline installed near Palisade. To balance water supply and demands at the lower end of the canal, a pumping plant would be added near Highline Lake State Park. This would use Highline Lake for temporary, off-channel storage. To fund, construct, operate and maintain the improvements and ensure conserved water is used to benefit endangered fish, various agreements among appropriate entities would be negotiated. Checks. Checks would be constructed across the canal to regulate the canal's water surface elevation. In the 30-miles from Palisade downstream to Big Salt Wash near 18 Road, 7 new checks would be installed. The checks would help maintain the canal water surface level needed to meet demands of the many turnouts along the canal. The checks in conjunction with the by- pass pipeline would save about 17,500 acre-feet. Checks have already been installed in the last 15