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CAA Permitting in EPA's Pacific Northwest Region

EPA's Region 10 (Pacific Northwest) serves Alaska, Idaho, Oregon, Washington, and 271 tribal nations.

Air Permit Actions

Public Comment Opportunities

  • None at this time.

Pending Actions

  • None at this time.

Recently Issued Permits and Approvals

  • On May 18, 2020, EPA Region 10 issued a Title V air quality operating permit to Williams Corporation, Northwest Pipeline LLC for its natural gas transmission compressor station in Pocatello, Idaho on the Fort Hall Reservation.

State Permitting Authority Permit Actions

  • For information on the status/dates of Part 70 permits submitted to EPA Region 10 by state permitting authorities, contact Doug Hardesty at (208) 378-5759 or

Region 10 Contacts

Mailing Address:
Air Permits and Toxics Branch
U.S. EPA - Region 10
Mailstop: 15-H13
1200 Sixth Avenue, Suite 155
Seattle, Washington  98101-3188
Contact Phone Responsibility
Kelly McFadden ( (206) 553-1679 Chief of the Air Permits and Toxics Branch
Doug Hardesty ( (208) 378-5759 Air Permit Program Lead
Christopher Familiare ( (206) 553-1250 Air Permit Writer
Natasha Greaves ( (206) 553-7079 Air Permit Writer
Jay McAlpine, PhD (  (206) 553-0094 Air Permit Modeler
Dan Meyer ( (206) 553-4150 Air Permit Writer
Bill Todd ( (206) 553-6914 Title V (Part 71) Fees