Italian Creek ISF Proposal with Attachments 10-27-21

• Case Number: 22/4/A-003
• Stream Name: Italian Creek
• Watershed: East Taylor
• Water Division: 4
• Water District: 59
• County: Gunnison
• Year: 2022
• Instream Flow App - Doc Type: Supplemental Data

9/23/2020 StreamStats
Flow-Duration Statistics Citations
Capesius, J.P., and Stephens, V. C.,2009, Regional Regression Equations for Estimation of
Natural Streamflow Statistics in Colorado: U. S. Geological Survey Scientific Investigations
Report 2009-5136, 32 p.
(http://pubs.usgs.gov/sir/2009/5136/http://pubs.usgs.gov/sir/2009/5136/)
Annual Flow Statistics Para meters[Mountain Region Mean Flow]
Parameter Code Parameter Name Value Units Min Limit Max Limit
DRNAREA Drainage Area 16.8 square miles 1 1060
PRECIP Mean Annual Precipitation 28.4 inches 18 47
Annual Flow Statistics Flow Report[Mountain Region Mean Flow]
PII: Prediction Interval-Lower, Plu: Prediction Interval-Upper, SEp: Standard Error of Prediction, SE:
Standard Error (other -- see report)
Statistic Value Unit SEp
Mean Annual Flow 17.9 ft^3/s 33
Annual Flow Statistics Citations
Capesius, J.P., and Stephens, V. C.,2009, Regional Regression Equations for Estimation of
Natural Streamflow Statistics in Colorado: U. S. Geological Survey Scientific Investigations
Report 2009-5136, 32 p.
(http://pubs.usgs.gov/sir/2009/5136/http://pubs.usgs.gov/sir/2009/5136/)
Monthly Flow Statistics Para meters[Mountain Region Mean Flaw]
Parameter Code Parameter Name Value Units Min Limit Max Limit
DRNAREA Drainage Area 16.8 square miles 1 1060
PRECIP Mean Annual Precipitation 28.4 inches 18 47
Monthly Flow Statistics Flow Report[Mountain Region Mean Flow]
PII: Prediction Interval-Lower, Plu: Prediction Interval-Upper, SEp: Standard Error of Prediction, SE:
Standard Error (other -- see report)
Statistic Value Unit SEp
January Mean Flow 3.04 ft^3/s 50
February Mean Flow 2.83 ft^3/s 51
https://streamstats.usgs.gov/ss/ 6/7