Skip to content

Municipal Tools & Resources

Municipal Construction Resources

Practicing good sediment and erosion control at all construction sites can help keep our water clean and healthy. Following the requirements in this permit helps control and reduce water pollution. Explore webinars, toolkits, and video training series designed to help you meet permit requirements.

Learn More

The Green Stormwater Infrastructure (GSI) Assistance Programs Guidebook

The Green Stormwater Infrastructure (GSI) Assistance Programs Guidebook is a tool for managers, planners, and other agency staff to update or create a GSI Assistance Program. The guidebook reviews 17 Western Washington GSI Assistance Programs that use technical assistance and/or financial incentives to support GSI installations on private property. Staff from these programs were interviewed and their guidance for developing, implementing, and evaluating GSI Assistance Programs is collated into the guidebook.  

Learn More

Pollution Prevention for Farmers Markets & Food Trucks

Preventing pollution is an important part of doing business at any farmer’s market, special event, or food truck location. Help protect clean water this season and make the most of your time outdoors with two webinars from the Washington Stormwater Center.

Learn More

Underground Injection Control (UIC) and MS4 Program

Presented by Douglas Howie

Jurisdictions use Underground Injection Control (UIC) facilities to infiltrate treated stormwater and meet Core Element #6 Flow Control. UICs are registered by Ecology authorized through guidance from WAC 173-218 and not by the Municipal Stormwater General Permit. This presentation discusses how the Municipal Permit and the UIC WAC work together to control stormwater in Eastern Washington.

Download the Presentation

Business Source Control & Inspection Program

Developing a source control program guidance manual and trainings to assist Western Washington Phase II permittees to implement new business inspection source control programs that comply with 2019-2024 NPDES Municipal Stormwater Permit requirements (S5.C.8).

Learn More

Business Inspection Report 2020

This report provides detailed information to Western Washington Permittees by providing examples and best practices to address various elements of a business inspection program.

Report and Resources