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

More documents

Recommendations

Info

20120723-4002 FERC PDF (Unofficial) 07/23/2012 mg/kg milligrams per kilogram mg/l milligrams per liter MW megawatt MWh megawatt-hour National Register National Register of Historic Places NERC North American Electric Reliability Corporation NFS National Forest System NHPA National Historic Preservation Act of 1966 NMFS U.S. Department of Commerce-National Marine Fisheries Service OEHHA California Office of Environmental Health Hazard Assessment PA Programmatic Agreement PAOT persons-at-one-time PCWA Placer County Water Agency Reclamation U.S. Department of the Interior-Bureau of Reclamation RM river mile ROS Recreation Opportunity Spectrum RV recreational vehicle TCP traditional cultural property USGS U.S. Geological Survey VIPMP Vegetation and Integrated Pest Management Plan VQO Visual Quality Objectives Washoe Tribe Washoe Tribe of Nevada and California Water Board California State Water Resources Control Board YOY young-of-the-year xviii
20120723-4002 FERC PDF (Unofficial) 07/23/2012 Proposed Action EXECUTIVE SUMMARY On February 23, 2011, Placer County Water Agency (PCWA) filed an application for a new major license to operate and maintain its Middle Fork American River Project (Middle Fork Project or project) No. 2079. The 223,753 kilowatt (kW) project is located on the Middle Fork of the American and Rubicon Rivers and Duncan and North and South Fork Long Canyon Creeks in Placer and El Dorado Counties, California. The existing project affects a total of 3,268 acres of federal lands; 1,883 acres within the Tahoe National Forest and 1,385 acres within Eldorado National Forest, both of which are administered by the U.S. Department of Agriculture-Forest Service (Forest Service). Project Description The existing Middle Fork Project consists of five developments: French Meadows, Hell Hole, Middle Fork, Ralston, and Oxbow. The French Meadows development is on the Middle Fork and a tributary, Duncan Creek, and includes: (1) the Duncan Creek diversion consisting of: (a) a concrete gravity diversion dam with an uncontrolled ogee spillway; (b) a 2-acre pool; (c) an instream flow maintenance pipe conveying flows to Duncan Creek with a maximum discharge of 8 cubic feet per second (cfs); (d) a low level outlet pipe also conveying water to Duncan Creek with a maximum discharge of 310 cfs; (e) the Duncan Creek-Middle Fork tunnel, routing water from the Duncan Creek diversion to the French Meadows reservoir with a maximum capacity of 400 cfs; (2) the French Meadows dam and reservoir on the Middle Fork consisting of: (a) a rock and gravel-filled dam with a spillway extending to the Middle Fork about 1,000 feet downstream of the dam and two radial gates; (b) a 1,408acre reservoir; (c) an instream flow maintenance pipe conveying flows to the Middle Fork with a maximum discharge capacity of 8 cfs; and (d) a low level outlet pipe also conveying water to the Middle Fork with a maximum discharge capacity of 1,430 cfs; (3) the French Meadows-Hell Hole tunnel, which routes water from the French Meadows reservoir to the French Meadows powerhouse penstock with maximum discharge capacity of 800 cfs; (4) a penstock conveying water to the powerhouse; (5) the French Meadows powerhouse housing a Francis-type unit with an authorized installed capacity of 15,300 kW discharging tailrace water to Hell Hole reservoir; and (6) the French Meadows switchyard. The Hell Hole development is located southwest of the French Meadows development on the Rubicon River and includes: (1) the rock fill Hell Hole dam with an uncontrolled spillway; (2) 1,253-acre Hell Hole reservoir; (3) an outlet tunnel that leads to two outlet pipes (an instream flow maintenance pipe conveying flows to the Rubicon River with a maximum discharge capacity of 20 cfs and a low level outlet pipe that also conveys flows to the Rubicon River with a maximum discharge capacity of 852 cfs); (4) a penstock conveying water from a bifurcation in the low level outlet pipe to the xix
Page 1 and 2: 20120723-4002 FERC PDF (Unofficial)
Page 19: 20120723-4002 FERC PDF (Unofficial)
Page 71 and 72:
41 Table 3.3.1-1. Average number of
Page 73 and 74:
43 Site/Release Location Gravel Ini
Page 75 and 76:
45 a Q 1 - TSR, Table G-1 (PCWA, 20
Page 77 and 78:
20120723-4002 FERC PDF (Unofficial)
Page 79 and 80:
Page 81 and 82:
Page 83 and 84:
Page 85 and 86:
Page 87 and 88:
Page 89 and 90:
Page 91 and 92:
Page 93 and 94:
Page 95 and 96:
Page 97 and 98:
Page 99 and 100:
69 Table 3.3.2-3. Hydrology for sel
Page 101 and 102:
71 Exceedances and Summary Statisti
Page 103 and 104:
Page 105 and 106:
Page 107 and 108:
Page 109 and 110:
Page 111 and 112:
Page 113 and 114:
Page 115 and 116:
Page 117 and 118:
Page 119 and 120:
Page 121 and 122:
91 Figure 3.3.2-6. Fish passage bar
Page 123 and 124:
Page 125 and 126:
Page 127 and 128:
Page 129 and 130:
Page 131 and 132:
Page 133 and 134:
Page 135 and 136:
105 Location American River below M
Page 137 and 138:
Page 139 and 140:
Page 141 and 142:
Page 143 and 144:
Page 145 and 146:
Page 147 and 148:
Page 149 and 150:
Page 151 and 152:
Page 153 and 154:
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
135 Species Name Status a Butte Cou
Page 167 and 168:
Page 169 and 170:
Page 171 and 172:
Page 173 and 174:
Page 175 and 176:
145 Table 3.3.3-5. Special-status w
Page 177 and 178:
147 Species Name Status Habitat Occ
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203 and 204:
Page 205 and 206:
Page 207 and 208:
Page 209 and 210:
Page 211 and 212:
Page 213 and 214:
Page 215 and 216:
Page 217 and 218:
Page 219 and 220:
Page 221 and 222:
Page 223 and 224:
Page 225 and 226:
195 Figure 3.3.5-1. French Meadows
Page 227 and 228:
197 Figure 3.3.5-3. Long Canyon, re
Page 229 and 230:
Page 231 and 232:
Page 233 and 234:
Page 235 and 236:
Page 237 and 238:
Page 239 and 240:
Page 241 and 242:
Page 243 and 244:
Page 245 and 246:
Page 247 and 248:
Page 249 and 250:
Page 251 and 252:
Page 253 and 254:
Page 255 and 256:
Page 257 and 258:
Page 259 and 260:
Page 261 and 262:
Page 263 and 264:
Page 265 and 266:
Page 267 and 268:
Page 269 and 270:
Page 271 and 272:
Page 273 and 274:
Page 275 and 276:
Page 277 and 278:
Page 279 and 280:
Page 281 and 282:
Page 283 and 284:
253 Table 3.3.6-1. Archaeological a
Page 285 and 286:
255 Resource Number Type a Descript
Page 287 and 288:
Page 289 and 290:
Page 291 and 292:
Page 293 and 294:
Page 295 and 296:
Page 297 and 298:
Page 299 and 300:
Page 301 and 302:
Page 303 and 304:
Page 305 and 306:
275 Table 4-2. Summary of annual co
Page 307 and 308:
Page 309 and 310:
279 Enhancement/Mitigation Measures
Page 311 and 312:
Page 313 and 314:
Page 315 and 316:
Page 317 and 318:
Page 319 and 320:
Page 321 and 322:
Page 323 and 324:
Page 325 and 326:
Page 327 and 328:
Page 329 and 330:
Page 331 and 332:
Page 333 and 334:
303 c Base 2010 costs were provided
Page 335 and 336:
Page 337 and 338:
307 Resource No-Action Alternative
Page 339 and 340:
Page 341 and 342:
Page 343 and 344:
Page 345 and 346:
Page 347 and 348:
Page 349 and 350:
319 Table 5-2. Staff-recommended mi
Page 351 and 352:
321 Location Middle Fork American R
Page 353 and 354:
Page 355 and 356:
Page 357 and 358:
Page 359 and 360:
Page 361 and 362:
Page 363 and 364:
Page 365 and 366:
Page 367 and 368:
Page 369 and 370:
Page 371 and 372:
Page 373 and 374:
Page 375 and 376:
Page 377 and 378:
Page 379 and 380:
Page 381 and 382:
Page 383 and 384:
Page 385 and 386:
Page 387 and 388:
Page 389 and 390:
Page 391 and 392:
Page 393 and 394:
Page 395 and 396:
Page 397 and 398:
Page 399 and 400:
Page 401 and 402:
Page 403 and 404:
A-1
Page 405 and 406:
A-3
Page 407 and 408:
Page 409 and 410:
Page 411 and 412:
Page 413 and 414:
Page 415 and 416:
Page 417 and 418:
Page 419:
show all

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

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?