In Region 10, EPA is the NPDES stormwater permitting authority for:

• Facilities in Idaho.
• Facilities on Indian Country lands in Oregon and Washington.
• Federal operators in Washington.
• Metlakatla Reservation and Denali National Park in Alaska.

• Stormwater Contacts for Region 10
• Delegated State Stormwater Programs

• Industrial stormwater activities in Region 10
  • Managing Stormwater at Auto Salvage and Recycling Facilities
• Construction Stormwater Activities in Region 10
• Municipal Stormwater Sources (MS4s) in Idaho and Washington
• About Region 10's NPDES Permit Program

Stormwater Contacts for Region 10

• Multi-Sector (Industrial) and Construction Stormwater: Margaret McCauley (mccauley.margaret@epa.gov), 206-553-1772
• Municipal Separate Storm Sewer Systems (MS4s): Misha Vakoc (vakoc.misha@epa.gov), 206-553-6650
• Enforcement and Compliance: Stacey Kim (kim.stacey@epa.gov), 206-553-1380

Delegated State Stormwater Programs

If EPA is not the permitting authority for your facility (see above), contact your state's stormwater program:

• Alaska Stormwater ProgramExit
• Oregon Stormwater ProgramExit
• Washington Stormwater General PermitsExit

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