Municipal Permit Assistance
The Municipal Permit Assistance program is a resource for NPDES Municipal Separate Stormwater System (MS4) Permit holders statewide. We provide stormwater management, education, outreach, and compliance assistance through a variety of services, products/projects, and activities. This web page has links to those resources and provides a bridge between regulatory authorities and municipalities who must comply with the MS4 permits.
For assistance or more information about the Municipal Stormwater Program please contact:
Laurie Larson-Pugh
Municipal Resource Program Manager
(253) 445-4593
MuniCon 2025: A Great Success!
MuniCon 2025 was an incredible success, bringing together stormwater professionals from across the state for two days of learning, networking, and collaboration. We’re excited to share that more content from the conference will be added soon, including session recordings, highlights, and additional resources.
Stay tuned for updates and revisit the conference experience!
Public-Private Partnership Regional Decant Facility StudyÂ
This project evaluates the regional need for expanded sediment and debris handling capacity to support increased maintenance requirements under Washington’s 2024 MS4 permits. It will assess whether existing decant facilities can meet future demand and examine the feasibility of developing new regional facilities through public-private partnerships (P3). The project will also produce an RFP template to help local governments procure services for the design, construction, operation, and maintenance of these facilities.
UIC Guidance Manual
This project developed new UIC Stormwater Guidance Materials for inclusion in Ecology’s stormwater manuals for Western and Eastern Washington, supporting consistent implementation across the state. The guidance includes practical tools such as example language, case studies, lessons learned, and templates to help municipal stormwater permittees comply with both MS4 Permit requirements and the UIC Rule. Available to all Phase I and Phase II permittees, the materials provide clear strategies for developing, managing, and strengthening local UIC stormwater programs.
Join the Larry Schaffner Mentorship Network
The Larry Schaffner Mentorship Network is a peer-to-peer program designed by and for stormwater professionals managing Phase I and Phase II Municipal Stormwater Permits. This collaborative initiative connects experienced mentors with colleagues entering the field or transitioning to new roles, fostering knowledge-sharing and professional growth.
Explore Municipal Permit Assistance…
Resources
Tools, training materials, and guidance manuals that assist municipalities to meet permit obligations.
SUBMISSION PROCESS
Not finding what you’re looking for? Have a tool or resource you think should be included? Want to share a lesson-learned with other MS4 professionals? Reach out to Laurie Larson-Pugh and start the conversation!
OTHER STORMWATER RESOURCES
The Washington Stormwater is the repository of many tools and resources municipalities may find useful for permit compliance. Browse our extensive catalog here.
