Forms & Resources
MS4 Toolbox
- Stormwater Delegation of Signature Authority Form
- MS4 Audit Report Template
- Stormwater Management Plan (SWMP) Template (updated Oct 2022)
- MS4 Permit Renewal Application
- 2021 Baseline Phase II MS4 Permit Template
- Phase II Model Ordinance (Permits issued after July 1, 2006) (PDF)
DEQ Presentations on MS4 Program Topics
- Introduction to NPDES MS4 Permits
- TMDLs and Watershed Planning
- Audits, Compliance and Enforcement
- MS4 Program Update Presentation (11/2/2020)
- MS4 Program Overview Presentation
Presentations on the Six Minimum Control Measures
- Public Education and Involvement
- Illicit Discharge Detection and Elimination
- Construction Site Runoff Controls
- Post-Construction Site Runoff Controls
- Pollution Prevention and Good Housekeeping
- Local Government Presentations on Minimum Control Measures
EPA Guidance and Tools
The EPA NPDES MS4 web page includes information and links to a variety of resources including:
- Measurable Goals Guidance for MS4s
- EPA Phase II MS4 Permit Improvement Guide
- Developing an MS4 Program
- Best Management Practices (BMPs)
- The Six Minimum Control Measures (MCMs)
- Total Maximum Daily Loads (TMDLs)
- Funding Sources
- Training and Webcasts
Sample Reports and Checklists
- Sample Stormwater Pollution Prevention Plan for Municipal Facilities
- Sample Stormwater Pollution Prevention Inspection Record
- Sample MS4 Spill Report
- Sample Training Record
- Sample OWS Inspection Record
- Sample Solid Waste Containers Inspection Checklist
- Sample Tanks and Containers Inspection Checklist
Six Minimum Measure Assessment Modules for Sustainable MS4 Programs
- Self-Sustaining MS4 Program Guidance
- Public Education & Outreach (6/14/17)
- Public Involvement & Participation (6/14/17)
- Construction Site Runoff (6/14/17)
- Post-Construction Runoff (6/14/17)
- Illicit Discharge Detection & Elimination (6/14/17)
- Pollution Prevention & Good Housekeeping (6/14/17)
Evolution of the MS4 Program
The MS4 Background Information Document summarizes the evolution of the NPDES MS4 Program from inception in 1990 through 2011.