Draft EIS_072312.pdf - Middle Fork American River Project ...

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20120723-4002 FERC PDF (Unofficial) 07/23/2012 Table 3.3.3-2. Special-status plant species known to occur in the project vicinity .... 134 Table 3.3.3-3. Project priority noxious weeds list ...................................................... 138 Table 3.3.3-4. Summary of riparian vegetation around project reservoirs and diversion pools ..................................................................................... 140 Table 3.3.3-5. Special-status wildlife species that potentially occur within the project vicinity ..................................................................................... 145 Table 3.3.3-6. Stebbins’ phacelia populations at Hell Hole reservoir that may be affected by the proposed Hell Hole reservoir seasonal storage increase ................................................................................................ 170 Table 3.3.5-1. Project recreation facilities .................................................................. 199 Table 3.3.5-2. Whitewater boating opportunities on the bypassed reaches ................ 203 Table 3.3.5-3. Whitewater boating opportunities on the peaking reach ..................... 204 Table 3.3.5-4. Average number of days per month when peaking reach ramping occurs in different water year types when flows were less than 2,000 cfs ............................................................................................... 205 Table 3.3.5-5. Project roads and trails ......................................................................... 211 Table 3.3.5-6. Notable facility differences between the Proposed and Alternative 1 recreation plans .................................................................................... 216 Table 3.3.5-7. Minimum water surface elevations for French Meadows and Hell Hole reservoirs ..................................................................................... 224 Table 3.3.5-8. Reservoir level objectives specified in Forest Service condition no. 37.......................................................................................................... 229 Table 3.3.5-9. Notable recreation management differences between the PCWA and Alternative 1 recreation plans .............................................................. 231 Table 3.3.5-10. PCWA’s proposed flow schedule to support class IV boating opportunities on the peaking reach downstream of Oxbow powerhouse .......................................................................................... 237 Table 3.3.5-11. Flow schedule provided in Forest Service condition no. 39 to support class IV boating opportunities on the peaking reach downstream of Oxbow powerhouse ............................................................................. 238 xiv
20120723-4002 FERC PDF (Unofficial) 07/23/2012 Table 3.3.5-12. Flow schedule provided in Forest Service condition no. 39 to support class II boating opportunities on the Confluence Run ............ 239 Table 3.3.6-1. Archaeological and historic-era resources located within the Middle Fork American River APE ...................................................... 253 Table 4-1. Parameters for the economic analysis of the Middle Fork American River Project ........................................................................................ 274 Table 4-2. Summary of annual costs and annual power benefits for the alternatives for the Middle Fork Project .............................................. 275 Table 4-3. Cost of environmental mitigation and enhancement measures considered in assessing the environmental effects of continuing to operate the Middle Fork Project .......................................................... 278 Table 5-1. Comparison of alternatives for the Middle Fork Project ..................... 306 Table 5-2. Staff-recommended minimum instream flows (cfs) by water year ..... 319 Table 5-3. Minimum flows (cfs) in the peaking reach when Ralston powerhouse experiences an unplanned outage from June through September and Middle Fork powerhouse is operational .............................................. 324 Table 5-4. Staff-recommended pulse flow schedule for wet and above normal water years ........................................................................................... 325 Table 5-5. Staff-recommended flow schedule to support class IV boating opportunities on the peaking reach downstream of Oxbow powerhouse .......................................................................................... 328 Table 5-6. Staff-recommended flow schedule to support class II boating opportunities on the Confluence Run .................................................. 330 Table 5-7. Staff-recommended minimum water surface elevations (feet) for French Meadows and Hell Hole reservoirs ......................................... 332 Table 5-8. Fish and wildlife agency recommendations for the Middle Fork American River Hydroelectric Project ................................................ 346 Table 5-9. Forest Service preliminary section 4(e) conditions for the Middle Fork American River Hydroelectric Project ........................................ 356 xv
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41 Table 3.3.1-1. Average number of
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43 Site/Release Location Gravel Ini
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45 a Q 1 - TSR, Table G-1 (PCWA, 20
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69 Table 3.3.2-3. Hydrology for sel
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71 Exceedances and Summary Statisti
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91 Figure 3.3.2-6. Fish passage bar
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105 Location American River below M
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135 Species Name Status a Butte Cou
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145 Table 3.3.3-5. Special-status w
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147 Species Name Status Habitat Occ
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195 Figure 3.3.5-1. French Meadows
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197 Figure 3.3.5-3. Long Canyon, re
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253 Table 3.3.6-1. Archaeological a
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255 Resource Number Type a Descript
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275 Table 4-2. Summary of annual co
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279 Enhancement/Mitigation Measures
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303 c Base 2010 costs were provided
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307 Resource No-Action Alternative
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319 Table 5-2. Staff-recommended mi
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321 Location Middle Fork American R
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