9600

• UCREFRP Catalog Number: 9600
• Author: Brown and Caldwell.
• Title: Phase 2 Coordinated Facilities Water Availability Study for the Endangered Fishes of the Upper Colorado River - Final Report.
• USFW Year: 2003.
• USFW - Doc Type: \
• Copyright Material: NO

' Available Release Capacip, = Max. Channel Cap. - C1 Data Set Fourth Revision Release -
estimated CROPS Bypass.
' The determinations of outlet capacity are presented in Tables 5 through 10 for Green Mountain,
Ruedi, Williams Fork, Wolford Mountain and Granby Reservoirs respectively. Table 10 presents total
' available release capacity during the 10-day peak period from the five reservoirs for the study period.
Table 11 presents potential CFOPS releases for the Modified "Share the Pain" alternative for the 10-
day peak and Table 12 presents potential total CFOPS and CROPS release for the Modified "Share
the Pain" alternative for the 10-day peak.
2.3.16 Sensitivity Analysis Procedures Concerning Potential Shortages to junior Water
2.3.18 Homestake Reservoir
Analysis in Technical Memorandum No. . 7 (Pp endix A H) originally sun ' ?ested that StateMod
and the C1 Data Set were not adequately characterizing Homestake Reservoir.. In subsequent analysis, this
apparent problem was determined to result from the operating policy for Homestake Reservoir
contained in the C1 Data Set. Contact with Colorado Springs Utilities resulted in confirmation that
the operating policy for Homestake Reservoir contained in the C1 Data Set is the Colorado Springs
Rights
The effects of making CFOPS and CROPS releases/bypasses on water rights with junior priorities was
estimated by the following.
Shortages to juniors =(Diversion by Structure X in Month M in C1 Data Set Fourth Revision) -(Diversion
by Structure X in Month M in C1 Data Set Fourth Revision with CFOPS releases and CROPS
releases/bypasses.
2.3.17 Sensitivity Analysis Procedures Concerning Effects of General Removal of Shoshone
' Priority Call on Winter Colorado River Flows
The following procedure was employed to calculate the effect of removing the Shoshone priority call
on winter (November through April) Colorado River flows upstream of Shoshone and at the head of
the 15-Mile Reach:
¦ The Cl Data Set Fourth Revision monthly flows were obtained for the study period
from the C1 Data Set for the node at the head of the 15-Mile Reach and immediately
upstream of Shoshone.
¦ The flows for the same nodes and with removal of the Shoshone priority call were
calculated for the C1 Data Set Fourth Revision using the same procedure as detailed in
Technical Memorandum No. 9 (See Appendix J).
' Flom change = (C1 Data Set Fourth Revision) - ? of om with removal o Shoshone call calculated usin
8
procedures from Technical Memorandum No. 9).
i
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