BOARD00175

• Board Meeting Date: 9/21/1998
• Description: ISF Section - New Appropriations - Notice to Appropriate Instream Flow Water Rights in Water Division 2
• Board Meetings - Doc Type: Memo

9/21/98 - Final RSR

NATURAL ENVIRONMENT SURVEY

Survey Date: 9/14/89

.
Survey Location:
e Survey Summary:

Basis for ISF:

16 miles north of Canon City
400' electrofished (2 passes). Sample included: 8 brown trout (3"-9"), 34 brook
trout (2"-8").
brook and brown trout fishery

FIELD SURVEY

Survey Date: 4/16/96

Method Used: R2X
Measured Flow (cfs): 8.02
Survey Location: 8W NE 86 Tl68 R70W 6PM
Notes: 200' uls of confluence with High Creek

Grassline Width (ft): 27
PHOTOS: 3

WATER AVAILABILITY

Method:

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tit 14_miL#3,wk41

The Fourmile Creek hydrograph was derived using a percentage of the flow data from the stream
gage on Fourmile Creek below Cripple Creek (% ofID # 07096250). See hydrograph below,
The summer instream flow recommendation was reduced to 3,0 cfs (8/1-10/31) 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 NOY DEC
11. 5.1 4.6

MEDIAN MON11ll. Y FLOWS cfs
IAN FEB MAR APR MAY JUN
4.9 4.9 5.6 11. 16. 18.

AUG SEP
3.2 3.3

JUL
6.6

Fourmile Creek below Cripple Creek (% ID # 07096250)
1992-93

10

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OCT NOV DEC JAN FEB MAR APR MAY JUN
MONTH

JUL AUG SEP OCT

_ CWCS ISF AMOUNT

Div 2 Rec Sum Rpt