BOARD00246

• Board Meeting Date: 11/3/1994
• Description: Agenda, Minutes, Memos
• Board Meetings - Doc Type: Meeting

"i

Agenda Item 8a
October 20, 1994
Page two

e

Natural Environment Studies

The DOW has conducted field surveys of the fishery resources on these streams and has found a
natural environment which can be preserved On each of these streams. To quantify the resources
and to evaluate instream flow requirements, the DOW collected biologic and hydraulic data which
was analyzed by the DOW and Board staffs. Based on the results of these analyses, the DOW
prepared recommendations of the amount of water necessary to preserve the natural environment
toa reasonable degree for each of the streams on the attached Final Notice. .

Water Availability Studies

The CWCB staff has conducted a detailed evaluation of water availability for these streams. To
determine the amount of water physically available for the Board's appropriations, the staff
analyzed available USGS gage records, available streamflow models, and/or utilized appropriate
standard methods to develop a hydrograph of mean monthly flows for each recommendation. The
staff also relied upon the flow measurements made as part of the field survey as an indicator of
the amount of water physically available in each stream and analyzed the water rights tabulation
for each stream and consulted with the Division Engineer's Office to identify any potential water
availability problems. The staff has found that no problems exist and that water is available for
appropriation. Based upon the above analysis, the staff concludes that water is available for _.
appropriation on each stream to preserve the natural environment to reasonable degree without ,.,
limiting or foreclosing the exercise of valid existing rights.

STAFF RECOMMENDATION

The staff recommends that the Board table action on the Bear Creek and Turkey Creek stream
segments listed in the attached Final Notice to allow for additional data collection on these streams.

For each stream listed in the attached Final Notice, except the stream segments Bear Creek and
Turkey Creek, the staff recommends that the Board,

(1) Determine. pursuant to section 37-92-102(3), CRS, and based upon the
recommendation of the DOW, a review of the data and other information presented
by the staff, in this memo and orally, and the staffs recommendations for in stream
flow appropriations on the streams identified in the attached Final Notice; that:

(a)

A natural environment does exist on each stream;

(b)

Water is available in each stream for appropriation;

(c)

The natural environment will be preserved to a reasonable degree by the _
water available for the recommended appropriations; ,.,