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Comment Period

Including TransAlta's Revised Permit in the SIP

State Implementation Plan (SIP)

Aug. 27, 2020 - Oct. 5, 2020, 11:59 p.m.

Ecology proposes to submit a revision of Washington’s air quality State Implementation Plan (SIP) to EPA. A State Implementation Plan is a general cleanup plan for air.  It describes how Washington carries out, maintains, and enforces national air quality standards. 

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This proposed revision would include TransAlta's updated 2020 permit for best available retrofit technology (BART) in the State Implementation Plan and remove the previous permit. The updated permit limits nitrogen oxides and ammonia oxides.

Documents for review:

Public hearing

Sept. 28, 2020 at 1 p.m. online
Call-in:  415-655-0001 or 855-929-3239 (toll-free)
Call-in access code:  133 303 1162

Background

TransAlta is a coal-fired power plant in Centralia. In 2011, the Legislature required TransAlta to shut down its coal-fired boilers in two phases. Ecology regulates air pollution from industrial facilities, including power plants. We monitor TransAlta's emissions.

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Comment online

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Comment by mail

Jacob Berkey
Washington Department of Ecology
Air Quality Program
P.O. Box 47600
Olympia, WA 98504-7600
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Jacob Berkey
Environmental Planner
jacob.berkey@ecy.wa.gov
360-407-7086

To request ADA accommodation, contact Ecology's ADA Coordinator by email at ecyadacoordinator@ecy.wa.gov, or call 360-407-6831, 711 (relay service), or 877-833-6341 (TTY). More about our accessibility services.