Municipal Resource Program

The Municipal Resource Program provides information, fosters collaboration, and offers guidance on new permit requirements and stormwater management solutions.

Business Resource Program

Second in our series of Innovative BMP Videos: Watch this video about this inexpensive, innovative and effective treatment device invented at the Port of Seattle!

Summer Lunchtime Webinar Series

The Washington Stormwater Center is pleased to present a series of summer lunchtime webinars on key topics of significance to municipal and business stormwater permittees, and other community partners.

Emerging Technologies - TAPE

We partner with the Department of Ecology to certify new stormwater treatment devices for use use in Washington State, as well as foster the development and use of new stormwater technologies.

Hybrid Low Impact Development Certificate Program

The Statewide Low Impact Development Training Program is transitioning to a hybrid system. Registration is now open for the online portion of the program! See the latest updates on the Hybrid Low Impact Development Certificate Program webpage and register today!

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upcoming events

This list of stormwater-related events and workshops is compiled as a free service. Washington Stormwater Center does not promote, endorse, or otherwise recommend any of the companies, individuals, or organizations presented here.

Current news


Nancy Winters to Serve as Interim Assistant Director of the Washington Stormwater Center

Nancy Winters

After creating water programs at WSU Puyallup since 2005 and co-founding the Washington Stormwater Center (WSC) in 2010 with Director John Stark and UW Puget Sound Institute Director Joel Baker, Tanyalee Erwin is transitioning out of the WSC on March 31, 2018 to pursue other interests.

Nancy Winters will serve as the Interim Assistant Director of the Washington Stormwater Center. She has more than 25 years of professional experience in environmental programs implementation and management with special focus on stormwater pollution prevention, individual and general NPDES permit understanding. She has integrated technical and policy approaches in her work for local and state governments, as well as in the private sector. Recently she applied her knowledge of water chemistry to design and conduct research on runoff from roofing materials in a project that began at the Department of Ecology and continued at the WSC. She has advanced degrees in Limnology (biology, and chemistry of lakes) and Environmental Engineering. She is the Executive Director of a non-profit organization that teaches English in Tanzania East Africa. In her spare time Nancy enjoys hiking, kayaking, and cross-country skiing.

Registration for the Online Portion of the Hybrid LID Certificate Program is Open!

Hybrid LID Certificate Program logo

We are pleased to be offering a new year of the Hybrid Low Impact Development (LID) Certificate Program - formerly known as the Statewide LID Training Program! Beginning in 2018, the training program has transitioned from a solely in-person training system to a hybrid (online and in-person) system. The online, self-paced courses include the theoretical basis for designing and maintaining LID systems. The in-person trainings will provide critical practical skills and real-world examples taught by the foremost practicing experts in the field.

Learn more about the new program and register today

In-person trainings will be offered in the fall of 2018, with locations and dates to be determined.

Remember—you must register for both the in-person AND online portions of the certificate of your choice (LID Design and/or LID Operations & Maintenance) in order to receive that certificate. Working through the online curriculum is also required before attending the associated in-person trainings.

Read the full details of the new hybrid system on the program webpage
Register for the online portion of the LID Operations & Maintenance Certificate
Register for the online portion of the LID Design Certificate

A Future for Stormwater Management in Puget Sound

Thank you to everyone who attended our Winter Forum, A Future for Stormwater Management in Puget Sound! All forum materials and presentations will be posted on Stormwater U after editing and compilation is complete in February 2018.

Introducing Stormwater U

Resources for preparing for the forum will be located on Stormwater U—a new section of the Washington Stormwater Center site developed to house a wide variety of information, including technical resources and stormwater management information, and issues of interest to NPDES permittees. You are encouraged to explore the relevant materials available there before attending the forum.

For general questions, please contact Laurie Larson (

2017 Municipal Stormwater Conference

MuniCon logo

A big thank you to all who were able to join us in Yakima for MuniCon 2017

Videos and presentations have been posted… revisit and share! Presenters, sponsors, exhibitors and attendees, this time you don't have to chose just one track, SEE THEM ALL! Videos from the Day 2 conference tracks accompanied with the PowerPoint slides now available. Catch them all as well as videos and materials from our inaugural 2014 conference.

Whether you're new to stormwater and just learning the ropes, or a seasoned stormwater manager who has seen it all; we are sure to add value to your breadth of understanding and experience.

Visit all three great tracks.

MuniCon 2017 Archive