City of Wenatchee buildings are closed to the public at this time. Please read the City Services Update for more information. The City of Wenatchee is working with local partners to provide accurate information about the Coronavirus (COVID-19) to the public. If you have symptoms and reasons to believe your symptoms are connected to COVID-19, please call your healthcare provider. If you have any questions about what is happening in Washington and how the virus is spread, visit the Washington State Department of Health website at:


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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 … 

Fallen Snow is Stormwater, Too! 

As pristine white snow covers the ground, it can be easy to forget that winter snow is stormwater, too! Stormwater pollution prevention doesn't end in the wintertime! From snow storage to de-icing chemical usage, there are many winter stormwater pollution prevention tips that can keep you, your property, and out local rivers safe! 

  • While piling your snow after shoveling or plowing, chose locations where snow will be able to infiltrate when melting instead of becoming stormwater runoff.
  • Clear downspouts to ensure that melting snow from the roof does not collect around your foundation
  • Make sure storm drains near your home or business remain clear.
  • Adjust your salt and deicing product usage based on weather conditions. Before applying chemicals, consider the air temperature, sun exposure, and how much product you will need. It is very important to read the directions and time the usage of products based on conditions:
    • For Dry, Powdery Snow: Shovel or sweep snow off sidewalks and driveways immediately to prevent the need for a deicer.
    • For Wet, Heavy Snow: Apply a deicer product as soon as snow starts falling in order to prevent it from bonding.
    • For Sleet & Freezing Rain: Apply deicer product early during these conditions to prevent ice from building up.
    • For Significant Snowfall: When more than 2 inches of snow falls, plow of shovel the snow first, before using a deicing product to melt any underlying layers of snow and ice that may have built up due to packed down snow.
    • Postpone outdoor construction projects during winter months to  when you can establish new vegetation to reduce soil loss and muddy runoff. 

Mobile Contractor Education and Outreach Effectiveness Study

In 2016, cities and counties in Eastern Washington covered under the NPDES Municipal Stormwater permit were surveyed regarding types of illicit discharge complaints. It was discovered that complaints were primarily generated from four types of mobile businesses: painting contractors, carpet cleaners, concrete contractors, and food vendors. In 2010, the Wenatchee Valley took part in the "Dump Smart Program" and beginning in 2018, the a study began to evaluate the effectiveness of the Dump Smart Education and Outreach Program. The study was completed in 2019 and the final report of the study can be found here. Also available is a fact sheet summarizing the Mobile Contractor Illicit Discharge Education & Outreach Effectiveness Study, the fact sheet can be found here

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 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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