WSP12636

• 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 II - Appendices-Etc - 08-01-96
• Water Supply Pro - Doc Type: Report/Study

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Table 4. Chronology of Lower Colorado River Development ................ 77
Table 5. 1986 acreage of lower Colorado River floodplain vegetation community types per
river maintenance division . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 90
Table 6. 1994 acreages of lower Colorado River floodplain vegetation community types per
river maintenance division . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 93
Table 7. Marsh types and criteria used in classification, lower Colorado River . . . . .. 95
Table 8. Surface acreage of water along the lower Colorado River from Pierce Ferry to the
U.S.lMexico International Boundary by river maintenance division . . . . . . . . . 106
Table 9. Section 7 Consultations, Endangered Species Act, Lower Colorado River ... 112
Table 10. List of non-Federal activities that affect or may affect the resources of the lower
Colorado River and its extended environs ........................ 118
Table 11. Amounts and uses of water diverted by principal water entitlement users in 1993

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 119

Table 12. Acreage comparison for cottonwood-willow and saltcedar communities/structures
between 1976 and 1994 ................................... 125
Table 13. Agency actions that have undergone section 7 consultation and levels of Incidental
Take permitted for the Southwestern Willow Flycatcher range wide ........ 129
Table 14. Collection records of the moth lacewing, Oliarces clara ............. 154
Table 15. Collection records of MacNeill's sootywing, Pholisofa[ graciliae ........ 156
Table 16. Summary of Effect Analyses. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Table C-l. Levee & bank line system for the lower Col~rado River by river-miles and
division . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. Appendix C - 2
Table El. Sum of all Colorado River use by Arizona, California, and Nevada; Lees Ferry
to Mexico ................................... Appendix E - 48
Table E2. Sum of all Colorado River uses above Hoover Dam ....... Appendix E - 49
Table E3. Sum of all Colorado River uses Hoover Dam to Davis Dam .. Appendix E - 50
Table E4. Sum of all Colorado River uses Davis Dam to Parker Dam . . . Appendix E - 51
Table E5. Sum of Colorado River use by Arizona and California below Parker Dam

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Appendix E - 52

Table E6. Mexico use in satisfaction of Treaty .... . . . . . . . . . . . . . Appendix E - 53
Table E7. Robert B. Griffith Water Project (SNWS) use . . . . . . . . . . . Appendix E - 54
Table E8. Metropolitan Water District of Southern California use . . . . . . Appendix E - 55
Table E9. Central Arizona Project use . . . . . . . . . . . . . . . . . . . . . . Appendix E - 56
Table ElO. Projected Colorado River use .................... Appendix E - 57

FIGURES

Figure 1. Description area within the Colorado River Basin .................. 2
Figure 2. Detail of the Colorado River description area showing river maintenance divisions

........ .... ............... ... ..... ...... .... ......3

Figure 3. Location of critical habitat for bony tail and razorback sucker ........... 8
Figure 4. Schematic of annual lower Colorado River releases and diversions in million acre-

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