FERC Project No. 2079 - PCWA Middle Fork American River Project ...

June 2008 i
TABLE OF CONTENTS
Page
1.0 Introduction ........................................................................................................... 1
2.0 Project Description ............................................................................................... 1
2.1 Project Facilities ......................................................................................... 2
2.2 Project Operation ....................................................................................... 4
2.3 Testing and Maintenance ........................................................................... 4
2.4 Potential Project Betterments/Improvements ............................................. 5
2.4.1 Hell Hole Reservoir Seasonal Storage Increase ............................. 5
2.4.2 French Meadows Powerhouse Capacity Upgrade .......................... 7
2.4.3 Ralston Powerhouse Capacity Upgrade ......................................... 8
3.0 Methods ................................................................................................................ 8
3.1 Current and Historic Range of CRLF ......................................................... 8
3.2 Known CRLF Records ............................................................................... 8
3.3 CRLF Habitat Characteristics .................................................................... 9
3.4 Upland and Aquatic Habitat Characterization ............................................ 9
3.4.1 Upland Habitat ................................................................................ 9
3.4.2 Aquatic Habitat ................................................................................ 9
4.0 Results ............................................................................................................... 12
4.1 Current and Historic Range of CRLF ....................................................... 12
4.2 Known CRLF Records ............................................................................. 13
4.2.1 Records Within the Study Area ..................................................... 13
4.2.2 Records Outside the Study Area, but within the
MFAR Watershed .......................................................................... 13
4.3 CRLF Habitat Characteristics .................................................................. 13
4.3.1 Upland Habitat .............................................................................. 13
4.3.2 Aquatic Habitat Characteristics ..................................................... 14
4.4 Upland and Aquatic Habitat Characterization .......................................... 15
4.4.1 Upland Habitat .............................................................................. 15
4.4.2 Aquatic Habitat .............................................................................. 16
5.0 Conclusions ........................................................................................................ 28
6.0 Literature Cited ................................................................................................... 29