BOARD00154 ‎(2)‎

• Board Meeting Date: 3/13/2007
• Description: ISF Section - Notice of 2008 Instream Flow Recommendations and Summary of ISF Workshop
• Board Meetings - Doc Type: Memo

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Fig. 2. Comparison of discharge in Bear Creek to recommended flows. The average daily flows through
Bear Creek above the Bear Creek Pipeline for the period of record are plotted. The original R2CROSS
analyses indicated that flows should be 1.8 cfs t'hroughout the summer. However, to ensure that the 50%
exceedences were met, the flows between 8/16 jmd 10/31 were reduced to 1.3 cfs.

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Precipitation Data
TU has identified local precipitation data from Colorado Springs. These data are included
in Appendix C. I

Existing Water Right Information
There appear to be three sets of records lassociated with the Bear Creek Ditch Diversion.
All three diversions are believed to be withdrawn from the same place and simply
represent the evolution of the structure's management. Between 1958 and 1973, it was
I
managed as structure 534, between 1973 and 1993 it appears to have been managed as
535, and since that time it has been mariaged as 7043. Although these diversions do not
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affect the proposed reach, the relevant Structure Summary Reports and Annual Water
Diversion Reports are attached (Appen4ix D) as further evidence of the magnitude of
flows through the upstream reach.

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