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NPDES Stormwater Program in Region 10

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.
On this page:
On related pages:

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:

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