Eastern Washington Phase II Municipal Stormwater Permit Overview – 2024 to 2029
The timeline below provides an overview of major program deadlines for implementing Permit requirements of S5 Stormwater.Management.Program.(SWMP) and S8 Monitoring and Assessment for Continuing City, Town, and County Permittees (By Date means “no later than…”). This is guidance only. The table paraphrases requirements and does not include all ongoing program elements. Please see the Permit for additional details and related requirements.
Training Resources
These plans line up with the Washington Phase II permit requirements for training and are designed to give jurisdictions a direction for how to organize their training obligations. They are meant to be updated annually with the SWMP.
For each of the permits, there is a summary of training obligations and resources to meet those obligations. This tool lists the annual report question that will need to be answered and provide some resources to obtain the necessary training.
Synthesis of Street Sweeping Research & Practices: Guiding Program Development & Implementation
This project will assist in the development of a guidance manual that will provide information and tools Permittees can use to develop and/or improve their street sweeping program. This effort is timed to support Permittees in meeting the anticipated 2024-2029 Municipal Separate Storm Sewer (MS4) Permit requirements, enabling these Permittees to implement a street sweeping program by July 1, 2027.
Grants of Regional or Statewide Significance (GROSS) are competitive grants that assist permittees in completing projects that will benefit multiple permittees. Our GROSS Grants page hosts the studies, reports, and products.
The grants are organized by which side of the state (Eastern or Western) the jurisdiction awarded is on and are cataloged dating back to 2010. They will appear in descending order starting with the oldest grant products. This page will be updated regularly as new grants are awarded and products are created. Please visit the Department of Ecology GROSS Grant page for more information on the GROSS grant application process, who’s eligible, and supported project types.
Providing a platform for Eastern Washington stormwater stakeholders to cooperatively participate in a transparent process to identify, discuss, and develop suggestions under consensus for submission to Ecology prior to the reissuance of the Eastern Washington Phase II Municipal Stormwater Permit.
EWA Construction Documents
We would like to introduce three new E&O documents created to address construction site issues. Eastern WA permittees working as part of the EWA Stormwater Education & Outreach Working Group identified a need for documents with information on construction BMPs for developers, engineers, planners, review staff, contractors, and construction crews.
EWA Effectiveness Studies
The purpose of the Monitoring and Assessment permit requirement in the Eastern WA Permit is to conduct studies to determine the effectiveness of the Stormwater Management Program and communicate the findings to the region. The effectiveness studies focus on Best Management Practices (BMPs) used by Permittees and include studies focused on operational, or structural BMPS, or education and outreach practices.
2022 Training from the Department of Ecology and the City of Walla Walla
This training is intended to provide municipal staff whose primary function is to review plans for a general overview of how to review a plan set to ensure compliance with the Permits. You can view all the content from this two-day training via the YouTube playlist linked to the left, or check out the full training page which includes several downloadable materials to help you get the most from this series.
Past Training from Herrera
In 2016 Herrera conducted a series of trainings focused on the fundamental principles of LID and their application. While older, this series is still relevant and you can access the archive here.
Eastern Washington MS4 Phase II 2019-2024 Permit Compliance tables were created by Eastern Washington Phase II permittee Wenatchee.
They are being shared for other Eastern Washington permittees use as a template for your programs.
The intent for sharing these templates is to aid in:
- Communicating stormwater permit obligations among department management, staff, decision-makers, and programs
- Identify resource and staffing needs
- Assigning roles and responsibilities among departments and staff
- Developing work programs and budgets
- Tracking permit compliance
- Generating annual reporting assignments
Each jurisdiction may need jurisdiction-specific adjustments/customizations (e.g., monitoring option selected, monitoring for SW WA permittees, secondary permittees, details on TMLD requirements, etc.)
Eastern Washington LID Guidance Manual
Eastern Washington MS4 Phase II 2019-2024 Permit Compliance table: the following compliance tables were created by Eastern Washington Phase II permittee Wenatchee. They are being shared for other Eastern Washington permittees to use as a template for your programs.
