WSP12637

• File Number: 8282.300
• Description: Colorado River Operations and Accounting - Lower Basin Administrative Procedures
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 8/1/1996
• Author: DOI-BOR
• Title: Description and Assessment of Operations-Maintenance and Sensitive Species of the Lower Colorado River - Volume I - Report - 08-01-96
• Water Supply Pro - Doc Type: Report/Study

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1',- ;23 '1')
Ut)' ~ )~

a. California Black Rail . . . . . . . . . . . . . . . . . . . . . . . . . . 168
b. Western Least Bittern ......................... 169
c. White-faced Ibis. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
d. Fulvous Whistling Duck. . . . . . . . . . . . . . . . . . . . . . . . 170

D. Aquatic .......................................... 171

1. Endangered . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 171

a. Colorado Squawfish .......................... 171
b. Razorback Sucker . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173

c. Bony tail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 182

2. Critical Habitat Description - Razorback Sucker and Bony tail . . . . . . 185

3. Sen~itive................ . . . . . . . . . . . . . . . . . . . . . . 189

a. Flannel Mouth Sucker ......................... 189
b. California floater ....... . . . . . . . . . . . . . . . . . . . . . 190
E. Mexico Species. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 191
1. Desert pupfish ................................... 191

2. Vaquita ...................................... 193

3. Totoaba ...................................... 195

F. Summary 9f Effect Analyses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 198

GLOSSARY OF TERMS AND ACRONYMS . . . . . . . . . . . . . . . . . . . . . . . . . . 202

APPENDIX A - LOWER COLORADO RIVER MULTI-SPECIES CONSERVATION
PROGRAM .................................. Appendix A-I

APPENDIX B - CONSULTATION AGREEMENT. . . . . . . . . . . . . .. Appendix B-1

APPENDIX C - RIVER WORK AND MAINTENANCE . . . . . . . . . .. Appendix C - 1
Introduction and Past History . . . . . . . . . . . . . . . . . . . . . . .. Appendix C - 1
Major Activities Along the Lower Colorado River . . . . . . . . . .. Appendix C - 3
Mohave Valley Division ...................... Appendix C - 5
Topock Gorge Division . . . . . . . . . . . . . . . . . . . . . .. Appendix C - 6
Havasu Division ........................... Appendix C - 6
Parker Division . . . . . . . . . . . . . . . . . . . . . . . . . . .. Appendix C - 6
Palo Verde Division . . . . . . . . . . . . . . . . . . . . . . . .. Appendix C - 7
CibolaDivision . . . . . . . . . . . . . . . . . . . . . . . . . . .. Appendix C - 7
Imperial Division . . . . . . . . . . . . . . . . . . . . . . . . . .. Appendix C - 7
Laguna Division ........................... Appendix C - 8
Yuma Division . . . . . . . . . . . . . . . . . . . . . . . . . . .. Appendix C - 9
Limitrophe Division . . . . . . . . . . . . . . . . . . . . . . . . . Appendix C - 10

APPENDIX D - MAlOR FACILITIES ON THE LOWER COLORADO RIVER

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. Appendix D - 1

Laguna Dam . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. Appendix D - 1
Hoover Dam .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. Appendix D - 1

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