Western Washington Phase II Municipal Stormwater Permit

The EPA phase II regulations went into effect in early 2003 and apply to all regulated small municipal separate storm sewer systems. On January 17, 2007 Ecology issued two phase II municipal stormwater permits, one for western Washington and one for eastern Washington. The Phase II permit for western Washington covers at least 80 cities and five counties.

Permit

Unless otherwise specified, the following documents are available in Adobe Acrobat (.PDF file) format. To view and/or print PDF files, you first will need to download and install Adobe Acrobat Reader from this link.

Phase II: Western WA Municipal Stormwater NPDES and State Waste Discharge General Permit
Appendix 1: Minimum Technical Requirements for New Development and Redevelopment - Errata for Figure 3.1, page 8 of 30 - The box on the lower right of the flow chart should say "The permit does not require the Permittee to regulate stormwater from the site." With this change, the flow chart is consistent with narrative requirements on page 7 of Appendix I.
Appendix 2: Total Maximum Daily Load (TMDL) Requirements
Appendix 3: Annual Report Form for Cities, Towns and Counties Covered under the Western Washington Phase II Municipal stormwater Permit
- Errata for Western Washington Phase II Cities and Counties Annual Report form
Appendix 4: Annual Report Forms for Secondary Permittees (PDF)
- Errata for Secondary Permittees Annual Report form
Appendix 5: Notice of Intent (NOI) for Coverage under a National Pollutant Discharge Elimination System (NPDES) Municipal Stormwater General Permit
Appendix 6: Street Waste Disposal
Appendix 7: Determining Construction Site Sediment Damage Potential

Appendix A: Response to Comments
Appendix B: List of Secondary Permittees
Appendix C: Phase II Western Washington TMDLs