WSP07399

• File Number: 7630.125
• Description: Wild and Scenic - Colorado Wilderness Act - 1991
• State: CO
• Basin: Statewide
• Date: 6/6/1986
• Author: Unknown
• Title: Wilderness ISF Appropriation
• Water Supply Pro - Doc Type: Data

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TO:

Gene Jencsok
Dan Merriman
Fi le

Steve Boand /lg

FROM:

DATE:

June 6. 1986

RE:

wilderness lnstream Flow Appropr~iation List

The attached lists show the 305 instream flow appropriations
held by the Colorado Water Conservation Board in existing and
candidate wilderness areas, These lists were developed by Mr.
Jim McDanold (of the State Engineer's Office) and me by
locating all instream flow appropriations made by the CWCB as
of December 31. 1985 on U.S. Forest Service maps. The lists
show only those instream flow appropriations that begin in
wilderness areas. Stream segments that started just outside a
wilderness or proposed wilderness area were not included.
Those appropriations would however provide protection for those
wilderness streams since water would be pulled through the
wilderness to meet a downstream instream flow call. It should
also be noted that not all the appropriations shown on the
lists are decreed at this time.

The 79 instream flow appropraitions held in candidate
wilderness areas will be senior to any reserved right obtained
by the Federal government through reserved rights. Of the 226
appropriations held by the CWCB in existing wilderness areas.
it is estimated that approximately 85 of those appropriations
would be senior to a federal reservation of water for instream
flow purposes. (The actual number of CWCB appropriations
senior to a federal reservation could vary between 62 and 105
depending upon the establishment date for the portion of the
wilderness in which the CWCB instream flow appropriation is
located. )

Lastly. please note that these lists are based upon the
interpretations made by Jim McDanold and me. There were a
number of "close calls" that might be interpreted differently
by other individuals.

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