Water Quality > Stormwater

Stormwater

About Stormwater

Permits

• Construction Stormwater General Permit
• Industrial Stormwater General Permit
  • No-Exposure Online Form (Industrial Stormwater Permit only)
• Municipal Stormwater Permits (Phase I and II)
• Sand and Gravel General Permit
• Washington State Department of Transportation Municipal Stormwater General Permit

Other Permit Information

• Ecology's Water Quality Permit Life Cycle System (WPLCS)
• Focus Sheets and Frequently Asked Questions on General Stormwater Permits

Policy Issues

• Drainage Basins
• Independent Science Panel Review of Stormwater Management Manual Completed
• Municipal Stormwater Permit Advisory Groups Formed
• Report to the Legislature on Municipal Stormwater NPDES Permit Program
• Stormwater Policy Advisory Committee

Technical Assistance

Links to stormwater guidance, management manuals, permit implementation, and emerging technologies and other studies.

Useful Links