BOARD00331

• Board Meeting Date: 9/21/1998
• Description: ISF Section - New Appropriations - Notice to Appropriate Instream Flow Water Rights in Water Division 4
• Board Meetings - Doc Type: Memo

,
9121/98 - Final RSR-

COLORADO WATER CONSERVATION BOARD
INSTREAM FLOW RECOMMENDATION SUMMARY REPORT

Stream:
County:
ISF ID#:

Waterloo Gulch
Gunnison
96/4/A-020

Division:
Watershed:
DOW Code #:

4
Gunnison River
46327

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INSlREAM FLOW RECOMMENDATION

Flow (cfs):

3.5 (5/1-8/14)
2 (8/15-9130)
.75 (10/1-4/30)
3.5

Length (miles):

Upper
Terminus:

headwaters in the vicinity of
lat 38 54' 30"N long 10626' 24"W

Lower
Terminus:

confl Texas Creek at
lat 38 51' 57"N long 106 26' 16"W

USGS QUAD(s):

Winfield; Tincup

BASIS FOR INSlREAM FLOW RECOMMENDATION

. The DOW documented that a natural environment is present in the form of a brook and brown trout
fishery.

. Based on the DOW's biological recommendation, flows of3.5 cfs, summer, and 2 cfs, winter, are
necessary to preserve the natural environment to a reasonable. degree. However, the winter instreain
flow recommendation was reduced to 0.75 cfs (1 01l-4/30)based on water availability analysis. The
DOW believes the lower flow recommendation will still preserve the natural environment.
. CWCB staff has conducted a water availability analysis and determined these amounts are available for
the Board's appropriation.
. CWCB staffhas determined that adequate water supplies exist such that the natural environment may be
preserved without limiting or foreclosing the exercise of valid existing water rights.

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CONSULTATIONS:

DOW: DOW

8/26/96

DWR: Ken Knox

8/26/96

CWCB STAFF:

Prepared By: Uppendahl

4/15/98

Reviewed By: Espegren

5/1/98

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C:\MARKINEW _RECS\WPS 1\RECOMMENDATlON SUMMARY REPORT.doc