BOARD02480

• Board Meeting Date: 1/12/1998
• Description: ISF Section - New Appropriations - Notice to Appropriate Instream Flow Water Rights in Water Division 2
• Board Meetings - Doc Type: Memo

NATURAL ENVIRONMENT SURVEY

Survey Date:

.'*^~
:~~

BLM land in S34 T17S R70W 6PM
250' electrofisbed. Sample included: 9 brown trout (4"-13"), 14 white sucker (2"0 ..
16"), 1 flathead chub, 910ngnose dace and 410ngnose suckers. .-
brown trout fishery

Survey Location:
Survey Summary:

Basis for ISF:

FIELD SURVEY

Survey Date: 4/17/96

Method Used: R2X I
Measured Flow (cfs): 14
Survey Location: SW SW S34 T17S R70W 6PM:
Notes: BLM LAND - Original reacb divided into 2 segments.

Grassline Width (ft): 23.9
PHOTOS: 3

WATER AVAILABILITY

Method:

Iii
u.
~
~ 15
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--'
u.
>-
--'
:J: 10
....
z
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z
$ 5
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The Fourmile Creek hydrograph was derived using data from the steam gage on Fourmile Creek
below Cripple Creek (ID #07096250). See hydrograph below. The summer instream flow
recommendation was reduced to 7.5 cfs (5/1-10/31) based on the water availability analysis. As
per the Division 2 Engineer, senior water rights do not present a water availability problem
within this reach of stream.

OCT NOV DEC
9.1 7.9 6.0

MEDIAN MONTHLY FLOWS cfs
IAN FEB MAR APR MAY JUN
6.7 6.2 8,1 19, 55. 49.

JUL
13.

AUG SEP
15, 13,

Fourmile Creek below Cripple Creek (10 #07096250)
1992-93

20

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o

OCT NOV DEC JAN FEB MAR APR MAY JUN
MONTH

JUL AUG SEP OCT

14_mil_#O_5.wk4\

_ CWCB ISF AMOUNT