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Program Template photo identifier

Air Quality Program

TransAlta Agreement

In 2011, the Washington State Legislature passed a law replacing the nitrogen oxides portion of the state's mediated agreement with TransAlta.

Final Documents Related to the Mediation Agreement

NOTE: These documents are related to the state’s mediated agreement for limits on TransAlta’s emissions of mercury and nitrogen oxides. The nitrogen oxide limits are part of Ecology's Best Available Retrofit Technology (BART) determination. This agreement is separate from the state’s negotiations with TransAlta for reductions of greenhouse gas emissions.

Comments Received

General Information

BART Submittals from TransAlta

Other Documents

BART Information

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