Final Environmental Impact Statement Volume I, Main Text and Appendices A-J

• Description: related to the Platte River Endangered Species Partnership ‎(aka Platte River Recovery Implementation Program or PRRIP)‎
• State: NE
• Basin: South Platte
• Water Division: 1
• Date: 7/1/1998
• Author: Federal Energy Regulatory Commission ‎(FERC)‎ Office of Hydropower Licensing
• Title: Final Environmental Impact Statement ‎(EIS)‎ - Volume I, Main Text and Appendices A-J - Kingsley Dam ‎(FERC Project No. 1417)‎ and North Platte/Keystone Dam ‎(FERC Project No. 1835)‎ Projects, Nebraska, FERC/FEIS-0063
• Water Supply Pro - Doc Type: EIS

TABLES (continued)
Table 4 -6. Average monthly flow (cfs) in the Platte River near Grand Island over the
49 -year simulation period. 4 -9
Table 4 -7. Average monthly elevation (frnsl) of Lake McConaughy over the 49 -year
simulation period. 4 -13
Table 4 -8. Average monthly storage level (KAF) of Lake McConaughy over the 49-
year simulation period. 4 -13
Table 4 -9. Average monthly flow (cfs) in the Sutherland Canal (Korty and Keystone
Diversions) over the 49 -year simulation period. 4 -13
Table 4 -10. Average monthly flow (cfs) in the Central (Tri- County) Supply Canal over
the 49 -year simulation period.
4 -14
Table 4 -11. Instream flow shortage and hydropower generation for three sizes of a
reregulating reservoir near Overton, Nebraska.
4 -21
Table 4 -12. Maximum end -of -month Lake McConaughy water surface elevations and
volumes.
4 -30
Table 4 -13. Peak flow analysis at Grand Island and Overton for late spring (May 1 to
June 30).
4 -34
Table 4 -14. Summary of average flow changes at Grand Island and Louisville by
alternative.
4 -48
Table 4 -15. Percent of April, May, and June months with flows equal to or exceeding
950 or 1,600 cfs.
4 -58
Table 4 -16. Occurrence of 2,000 cfs and 3,000 cfs pulse flows at Grand Island during
late spring, May 1 to June 30.
4 -60
Table 4 -17. Occurrence of flows at Grand Island between 1,100 and 2,800 cfs and
between 1,700 and 2,800 cfs for March, April, and October - November.
4 -67
Table 4 -18. Percent occurrence of mean monthly flows at Grand Island that minimize
predation and flooding of tern and plover nests.
4 -69
Table 4 -19. Percent occurrence of flows at Overton relating to winter habitat for bald
eagles.
4 -72
Table 4 -20. Percent occurrence of flows at Grand Island beneficial for waterfowl
during spring migration and nesting.
4 -75
Table 4 -21. Percent occurrence of flows at Grand Island beneficial for waterfowl
during autumn and winter.
4 -76
Table 4 -22. Effects on biodiversity compared to Baseline.
4 -77
Table 4 -23. Minimum Lake McConaughy storage volume reached over the 49 -year
simulation period (1942 to 1991).
4 -91
Table 4 -24. Irrigation shortages during the 49 -year simulation period under the
Instream Enhancement Alternative.
4 -91
Xiii