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Office of Columbia River

Icicle Creek Comprehensive Water Resource Strategy (Archive)

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http://www.co.chelan.wa.us/natural-resources/pages/icicle-work-group

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This page is now an archive

Icicle Creek drains a primary sub-basin of Water Resource Inventory Area (WRIA) 45 in Chelan County, and is a major tributary to the Wenatchee River. The Icicle sub-basin encompasses an area approximately 212-square miles most of which is undeveloped and resides in the Alpine Lakes Wilderness and the Wenatchee National Forest. Flow from Icicle Creek supports a range of demands including both instream and out of stream uses which affect a diverse set of stakeholder groups.

Chelan County Department of Natural Resources and Ecology OCR have co-hosted five workshops of the Icicle Workgroup and plan an additional workshop on September 17, 2013.  Below are a summary of meeting dates and available meeting materials:

The Icicle Creek drainage is snowfall / snowmelt dominated with the majority of yearly runoff observed during late Spring and early Summer.

Yearly Exceedence Probability Approx. Icicle Annual Runoff Quantity*
(acre-feet)
90% (Dry Year) 200,000
50% (Avg. Year) 375,000
10% (Wet Year) 770,000

 

*USGS gage #12358000, Located RM 5.8 (above Snow Creek. Period of record 1937-1971 and 1994 to present.

Needs/Demand

Instream and out-of-stream uses of Icicle Creek supply include fish propagation demand, protection of instream resources, municipal and other domestic demand and irrigation. In some years (such as 2001), existing needs exceed available supply. In other years, excess supply exists.

Icicle Basin, Existing Demand and Future Needs
Demand Category Existing Demand (ac-ft) Future Additional Need (ac-ft) Notes
Instream Flows (WAC 173-545-090) 307,000 68,000 Future need based upon instream flow deficit in average year (50% exceedence)
Leavenworth National Fish Hatchery (Reach RM 2.8 to 4.5) 28,000 14,500 Future need based upon providing 20-cfs continuous flow in existing Icicle Creek channel
Municipal / Domestic 1,300 1,400 Source: 2007 Preliminary Draft, Needs and Alternatives Analysis, Icicle Creek Sub-Basin Storage Study
Icicle-Peshastin Irrigation District 31,000 0 Source: 2007 Preliminary Draft, Needs and Alternatives Analysis, Icicle Creek Sub-Basin Storage Study
Cascade Orchards Irrigation Company 3,672 (est.) 0 Source: 2007 Preliminary Draft, Needs and Alternatives Analysis, Icicle Creek Sub-Basin Storage Study
Other Irrigation 1,100 0 Source: 2007 Preliminary Draft, Needs and Alternatives Analysis, Icicle Creek Sub-Basin Storage Study
Pending Applications 0 724 Source: Table 6-1 of 2003 Wenatchee River Basin Watershed Assessment
Interruptible Water Rights 0 636 Source: Ecology WRTS, 1-Interruptible Right: City of Leavenworth Permit S4-28122, Drought Frequency Unknown
Printable Version

Resource Library

Regulatory Documents

Leavenworth National Fish hatchery 401 Certification

Basin-Wide Studies
Chelan County Department of Natural Resources

Lake Wenatchee Water Storage Feasibility Study, June 2003
Montgomery Watson Harza, Jones & Stokes

Wenatchee River Basin, Watershed Assessment, August 2003
Montgomery Water Group, Inc., Pacific Groundwater Group, EES

WRIA 45 Summary of Groundwater/Surface Water Interaction and Groundwater Resource Reference, January 6, 2005
Golder Associates

Wenatchee Watershed Management Plan, April 2006

Multi-Purpose Water Storage Assessment in the Wenatchee River Watershed, June 2006
Montgomery Water Group, Inc.

Wenatchee Watershed Planning, Phase IV - Detailed Implementation Plan, April 2008
Wenatchee Watershed Planning Unit

Water Storage Report, Wenatchee River Basin, February 2011
Anchor QEA, LLC

Non-County Entities

Wenatchee Subbasin Plan, May 2004
Northwest Power and Conservation Council

2005 Accomplishment Report for the Upper Columbia Core Subbasins
U.S. Department of the Interior Bureau of Reclamation, Pacific Northwest Region Upper Columbia Area Office Habitat Program
Greg Knott, Methow Subbasin Liaison

Technical Report for the Columbia Basin Long-Term Water Supply and Demand Forecast, 2011 - Appendix D, Historical Stream Flow by WRIA
Washington State Department of Ecology, Office of Columbia River

Icicle Sub-Basin Studies
Chelan County Department of Natural Resources

Alpine Lakes Optimization, Water Infrastructure Project Grant Application Form, Washington State Department of Ecology, October 2005
Mike Kaputa, Director

Preliminary Draft, Needs and Alternatives Analysis, Icicle Creek Sub-Basin Storage Study, March 2007
Anchor Environmental, L.L.C.

US Fish and Wildlife Service

Icicle Creek Target Flow report For Leavenworth national Fish Hatchery, December 2004
Montgomery Water Group

Water Management Plan for Leavenworth National Fish Hatchery, December 2004
Montgomery Water Group

Progress Report, Icicle Creek Water Temperatures, November 1, 2005 - October 31, 2006
Barbara Kelly Ringel

Biological Assessment for Operations and Maintenance of Leavenworth National Fish Hatchery, July 2006

Leavenworth National Fish Hatchery, National Pollutant Discharge Elimination System Discharge Monitoring Reports

Leavenworth National Fish Hatchery, Proposed Flow Management Operations for 2009-2014, January 2009

Seasonal Movements of Adult Fluvial Bull Trout and Redd Surveys in Icicle Creek, 2009 Annual Report, 2011
Mark C. Nelson, Andy Johnsen and R.D. Nelle

Leavenworth National Fish Hatchery Final Value Analysis, June 2012

US Bureau of Reclamation

Technical Memorandum, Instream Flow Assessment of Icicle Creek, Washington, December 2005
Ron Suttton and Chelsie Morris

Trout Unlimited

Lower Icicle Creek Reach Level Assessment, 2005
The Watershed Company

Icicle Creek Boulder Field Fish Passage Assessment
EcoAssets and Associates

Peshastin Sub-Basin Studies

Draft Feasibility Study, Campbell Creek Reservoir, September 2010
Washington State Department of Ecology
Anchor QEA, LLC

Peshastin Subbasin, Needs and Alternatives Study, January 2007
Chelan County Natural Resources Department
Anchor Environmental, LLC

Appraisal Study, Peshastin Irrigation District Pump Exchange Project, January 2012
Chelan County Natural Resources Department
Anchor QEA, LLC

 

 


WRIA 45 -- Sub-Basin Map (click to enlarge)


Icicle Creek Sub-Basin Vicinity Map (click to enlarge)


Icicle Creek – Water Supply and Demand (click to enlarge)


Icicle Creek – Water Supply Deficit/Surplus (click to enlarge)


Icicle Creek Historic Flows (click to enlarge)

Current Work / Issues

Chelan County Department of Natural Resources

  • Wenatchee 2050
  • Wenatchee Coordinated Cost-Reimbursement Processing
  • Peshastin Irrigation District Pump Exchange Feasibility Study

US Fish and Wildlife Service

Trout Unlimited – Washington Water Project

Ongoing Litigation

Notifications

Join the Ecy-Icicle-Creek-Water listserv to receive periodic informational updates regarding the Icicle River Sub-Basin via email