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Ruedi 2012 Agreement Final EA Page 3-2 1 Table 3.1. Ruedi Reservoir Pool Volumes. POOL DESCRIPTIONS VOLUME TOTALS (AF) (AF) Replacement Capacity* up to 28,000 28,000 Regulatory Capacity A. Marketable Yield Round I Contracts 7,850 Round H Contracts Currently Available (4,584 of Contracted) 6,135 Available w/Long-Term Agreement 10,865 Subtotal 17,000 Uncommitted Fish (Temporary Agreement) 10,825 Remaining Uncommitted 10,825 Subtotal 21,650 Total 46,500 B. Removed from Marketable Yield During Round II NEPA 21,778 21,778 C. Removed from Marketable Yield to Benefit 5,000 5,000 Endangered Fish** D. Inactive Storage 1,032 1,032 E. Dead Storage 63 63 Total Stara a Ca ac' 102,373 * The Operating Principles state the replacement capacity is that needed to replace out-of-priority diversions to the Arkansas Basin by the Project. For the purpose of analyzing Marketable Yield, the replacement pool was assumed to be 28,000 af. In 2002, the driest year on record, 535 of was used for replacement purposes. . ** An additional 5,000 of of water is available from Ruedi Reservoir to benefit endangered fish in 4 years out of 5 through reregulation of the reservoir. 1 1 1 F ---J 1 1 The Fryingpan River below Ruedi dam is a cobble- and boulder-bed channel typical of high mountain streams in the Rocky Mountains. Geologic features within the Fryingpan Valley, especially the steep walls of the canyon and erosion resistant sandstone, control the general form of the Fryingpan River and essentially restrict lateral and vertical movement of the channel (BRW, Inc 1999 & USDI, 1989). Because of these factors and the large size of the bed and bank materials that form the Fryingpan River, the channel is considered relatively stable (BRW, Inc 1999 & USDI, 1989). Through most of its length, from Ruedi Dam to the town of Basalt, the channel is adequate to contain approximately 1,000 cfs (USDI 1989). 1