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 …

Spring Pollution Prevention

A clean Columbia starts in your backyard! Contaminated stormwater is the largest contributor to polluted water. This spring, it is important to remember that everything that hits the ground has potential to end up In the Columbia River if it reaches the road or a storm drain. As the weather warms and you’re spring cleaning and working in the yard, it is important to remember to always properly dispose of waste and chemicals. Here are some quick tips on how you can help prevent stormwater pollution this spring:

  • Limit your usage of pesticides and fertilizers. Always follow the directions and never apply when rain is in the forecast.
  • Check you sprinkler system for leaks and make sure your your system isn’t spraying the road, sidewalks, driveways and other hard surfaces. Leaks, overwatering, and spraying the hard surfaces wastes water, polluted water ways, and can cause damage to the road. 
  • Keep grass clippings and other yard debris out of the road and away from storm drains.
  • Whether you’re at home, at the park, or out enjoying the foothills, always pick up after your pet.
  • Always properly dispose of  household chemicals properly. Never dump paint, household chemicals, soap, oil, food, or any other wastes into the road or into storm drains.
    • For more information about disposing of Hazardous Household Chemicals in Chelan County click here.
    • There are NO DATES SCHEDULED in 2020 for Hazardous Household  Chemicals in Douglas County for 2020.

Small changes at home can make a big difference to our local swimming areas, wildlife, and those that live downstream.

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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