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U00516 SUMMARY OF IMPACTS Table 2.1 summarizes potential environmental impacts of the alternatives. These impacts are detailed in the next chapter. Table 2.1 Summary of Potential Impacts. No Action Proposed Action Hydrology . Erosion and Projected flows not expected to cause Projected flows not expected to cause Scour erosion or scour downstream of Ruedi. erosion or scour downstream of Ruedi. . Water There is sufficient water to meet 2002 There is sufficient water to meet 2002 Contracting contract demands and if 2003 inflow is contract demands and if 2003 inflow is similar to 2002 inflow, there will be similar to 2002 inflo~, there will be sufficient water to meet 2003 contract sufficient water to meet 2003 contract demands. demands. Aquatic Wildlife . Sport Fishery End of October drop in flows could Releases of up to 10,000 AF for HUP potentially impact brown trout beneficiaries would be completed spawning and incubation. This is before spawning begins-no impacts expected to be minimal. beyond those expected under No Action. . Threatened & All contract obligations for All contract obligations for Endangered endangered fish releases from Ruedi endangered fish releases from Ruedi Species are expected to be met in 2002 and are expected to be met in 2002 and 2003. The 4 out of 5 years 5,000 AF 2003. The 4 out of 5 years 5,000 AF Ruedi water for endangered fish was Ruedi water for endangered fish is not not available in 2002 and is not expected to be available in 2002 or expected to be available 2003 if 2003 2003. Additional irrigation return inflows are equal to or less than 2002 flows in the Grand Valley would inflow. accrue to the 15 Mile Reach. Recreation . Ruedi Reservoir In 2002, Dearhamer and Aspen Yacht In 2002, Dearhamer and Aspen Yacht Club boat ramps not useable; Ruedi Club boat ramps not useable; Ruedi Marina boat ramp available until mid Marina boat ramp available until about Sept. If 2003 inflow is similar to 2002 September 1. If 2003 inflow is similar inflow, Dearhamer and Aspen Yacht to 2002 inflow, Dearhamer, Aspen Club boat ramps not useable in 2003; Yacht Club, and Ruedi Marina boat Ruedi Marina boat ramp available for ramps would not be useable in 2003. 30-45 days. Degraded recreation experience due to Degraded recreation experience due to low water levels in 2002 and 2003. low water levels in 2002 and 2003. . Fryingpan No impact-"-flows at or below 250 cfs. Potential for minor impacts on fishing. Fishing Flows expected to be over 250 cfs, but less than 300 cfs. 6