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


Press Releases


June 21, 2010

April 26, 2010

September 8, 2009

September 11, 2009


BART Submittals from TransAlta


Ecology documents to TransAlta


Other Documents


Other BART Information


For Assistance or Further Details
Please Contact:
Al Newman
(360) 407-6810