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Wenatchee Valley Stormwater Management Program

Wenatchee Valley Stormwater Program LogoThe Wenatchee Valley Stormwater Technical Advisory Committee (WVSTAC) was formed in January 2004 through a memorandum of understanding between Chelan County, Douglas County, the City of East Wenatchee and the City of Wenatchee. The goal of this committee is to develop a regional stormwater program and meet the requirements of the Eastern Washington Phase II Municipal Stormwater Permit.

What's happening now … 

July is Smart Irrigation Month! Overwatering is OUT!

July is a peak month for outdoor water use. It is also a good time to make sure you’re using your irrigation system efficiently! Watering too much or too often can result in shallow roots, weed growth, disease, fungus, and unnecessary runoff! Irrigation runoff from lawns and gardens carries bacteria, sediment, chemicals and other pollutants into the stormwater system and eventually the Columbia! Runoff from overwater can cause damage to adjacent property and can degrade roads and downstream infrastructure. Utilizing best management practices can promote a healthy lawn and garden and protect the waterways, including the Columbia River from contamination.

Best management practices don’t need to be costly to make a big difference! Simple practices can help protect water quality by reducing the pollutants washed into the stormwater system and improve water use efficiency by reducing the amount of water wasted due to evaporation or runoff from overwatering. Consider these best management practices to improve irrigation usage! Follow the links for a description of each best management practice!

Overwatering is OUT! Keep irrigation where it counts!

For additional tips on how to improve your watering practices and creating a landscape ideal for Central Washington weather you can always ask the experts at local lawn and garden centers or,

Stormwater Management Manual For Eastern Washington Update 

The local effective date for the implementation for the 2019 Stormwater Management Manual for Eastern Washington is August 1, 2019. For more guidance to aid in project planning, preparation of complete stormwater submittals, and site management, please visit our Construction and Post Construction page.

Fund-raising Car Wash Kits
The car wash kits are now available to check out for fundraising car washes in Wenatchee, East Wenatchee, Chelan County, or Douglas County.  Click here to view the Car Wash Kit Flyer for the City of Wenatchee. 

To reserve your kit in Wenatchee, call (509) 888-3235 
    and in East Wenatchee call (509) 886-3728.

Grassy stormwater pond in Olds Station

Are you interested in participating on the Wenatchee Valley Stormwater Steering Committee?
The steering committee only meets once or twice a year and the meeting are typically held during the lunch hour.  The steering committee members provide input on the regional stormwater program.  For more information please email Jessica Shaw at jshaw@wenatcheewa.gov or call her at (509) 888-3225.




Please check this page frequently for new information.

Regional Stormwater Program
The Wenatchee Valley Stormwater Management Program was adopted in 2008 and is updated annually.  Please use our online feedback form to provide suggestions or comments on the local stormwater program.

The program was updated in 2018: 

Wenatchee Valley Stormwater Management Program 
WVSWMP Appendix A 2019 Stormwater Management Program Plan 
WVSWMP Appendix B Public Education & Outreach and Public Involvement & Participation  
WVSWMP Appendix C Illicit Discharge Detection & Elimination 
WVSWMP Appendix D Construction 
WVSWMP Appendix E Post-Construction    
WVSWMP Appendix F Pollution Prevention & Good Housekeeping for Municipal Operations   
WVSWMP Appendix G Monitoring & Program Evaluation
WVSWMP Appendix H Reporting & Recordkeeping - Please see the Annual Reports below
WVSWMP Appendix I Local Stormwater Regulations - Please follow the link to Wenatchee's City Code
    City of Wenatchee 4.10 - Stormwater Illicit Discharge Detection & Elimination
    City of Wenatchee 9.16 - Storm Drainage Utility 
    City of Wenatchee 12.10 - Construction & Post-Construction Stormwater


Stormwater Program Elements
The Eastern Washington Phase II Municipal Stormwater Permit requires that the following elements be addressed in the program:

  • Public Education and Outreach
  • Public Involvement and Participation
  • Illicit Discharge Detection and Elimination
  • Construction and Post-Construction Stormwater Management for New Development and Redevelopment
  • Pollution Prevention and Good Housekeeping for Municipal Operations
  • Total Maximum Daily Load Requirements (This refers to requirements in water clean-up plans for polluted water bodies)
  • Stormwater Monitoring

In addition, the permit requires each jurisdiction to maintain records on stormwater activities and provide annual reports to the DOE.  These annual reports are contained within Appendix H, the most current annual reports are listed below.  Annual Reports from 2012-2016 are available upon request, for more information please contact the City of Wenatchee at (509)  888-3235. 

Links to websites of the other members of the WVSTAC:
    Chelan County
    Douglas County 
    City of East Wenatchee

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