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How is Stormwater Regulated?

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Municipal Stormwater Draft Permits       

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Phase I / Phase II Western Washington

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Notice of Intent to apply for coverage

Washington State Department
of Transportation

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Washington State Department of Transportation Statewide Stormwater Permit

Background

The Washington Department of Transportation (WSDOT) is required by State and Federal regulations to have a NPDES permit in areas covered by Phase I and Phase II of the municipal stormwater permit program. Seeking coverage under a statewide permit is consistent with WSDOT’s objective of implementing a highway stormwater management program that promotes sound stormwater management on all state highways. This general permit will cover stormwater runoff from state highways, rest areas, weigh stations, scenic view points, park and ride lots, ferry terminals, and maintenance facilities. Upon issuance, this permit will replace WSDOT’s existing coverage under the Phase I Municipal general permits. Click here for more details.

Draft Permit and Appendices

In December 2005, Ecology issued a Preliminary Draft Permit for public comment.  Since then, however, Ecology issued the new Phase I and Phase II Municipal Stormwater Permits.  Currently, revisions concern:

1. Consistency with the new Phase I and Phase II permits.
2. Issues of statewide coverage.
3. Requirements under Ecology's TMDL program.
4. Review WSDOT's draft Stormwater Management Program for consistency with the new permit.
5. An equivalency review of the Highway Runoff Manual with Ecology's western and eastern Washington stormwater manuals.

Preliminary Draft Permit

To read the Preliminary Draft WSDOT Permit, click on the following links:

• WSDOT Municipal Stormwater NPDES and State Waste Discharge General Permit

• Preliminary Draft: List of SWMP requirements

• Appendix 1: Minimum Technical Requirements for New Development and Re-development for Western Washington

• Appendix 2: Minimum Technical Requirements for New Development and Re-development for Eastern Washington

• Appendix 3: WSDOT Stormwater Management Program Plan

• Appendix 4: Statewide TMDL Requirements for WSDOT

• Appendix 5: Street Waste Disposal

• Appendix 6: Summary of Annual Report and Other Submittals (placeholder)

For More Information

If you desire further information on the WSDOT permit, please contact:

William Hashim
Water Quality Program
Department of Ecology
P.O. Box 47600
Olympia, WA 98504-7600
Phone: 360 407-6467
E-mail: bhas461@ecy.wa.gov

Additional Resources

For more information about Municipal Stormwater Permits:

http://www.ecy.wa.gov/programs/wq/stormwater/municipal/index.html

For more information on WSDOT’s stormwater management program, including the application submitted for the statewide stormwater permit to Ecology in March 2003, NPDES Annual Progress Reports, and WSDOT’s revised Highway Runoff Manual:

http://www.wsdot.wa.gov/Environment/waterquality/ 

WSDOT submitted an application to Ecology in March 2003. The application is posted on the WSDOT Webpage at:
http://www.wsdot.wa.gov/Environment/WaterQuality/NPDES.htm

The stormwater NPDES annual progress reports from WSDOT are posted at:
http://www.wsdot.wa.gov/Environment/waterquality/#AnnualReports

WSDOT’s revised Highway Runoff Manual is posted at:
http://www.wsdot.wa.gov/Environment/WaterQuality/Runoff/HighwayRunoffManual.htm