Regulations & Permits

Use this portal to filter and search for all of our regulatory information.

We oversee many state and federal laws designed to protect Washington's land, air, and water. See our laws, rules, & rulemaking page for more information about our current rules and rulemaking.

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Monitoring Ozone Air Pollution in Quincy

Information about Monitoring for Ozone Air Pollution in Quincy, 1/30/12

https://ecology.wa.gov/quincyozone

TransAlta Memorandum of Agreement (MOA), 12/23/11

This is the Memorandum of Agreement (MOA) for TransAlta, 12/23/11.

https://ecology.wa.gov/transaltasignedmou

TransAlta Best Available Retrofit Technology (BART) order, revised, 12/13/11

This is the first revised TransAlta Best Available Retrofit Technology (BART) order, 12/13/11.

https://ecology.wa.gov/transaltarevisedbartco12-13-11

Spokane County's Second 10‐Year Limited Maintenance Plan for Particulate Matter (PM10)Spokane County, Washington Second 10-Year Limited Maintenance Plan for PM10

State Implementation Plan Revision for Spokane County Second 10-Year Limited Maintenance Plan for PM10

https://ecology.wa.gov/spokanepm10second10lmp

TransAlta Best Available Retrofit Technology (BART) order, 6/18/10

This is the TransAlta Best Available Retrofit Technology (BART) order, 6/18/10.

https://ecology.wa.gov/tasignedbartorder

200922am NWIW hearing

Sept. 22 a.m. NWIW hearing transcript

https://ecology.wa.gov/200922am-nwiw-hearing

May 25, 2010 TransAlta agreement

This is the May 25, 2010 agreement between Ecology and TransAlta for the TransAlta power plant.

https://ecology.wa.gov/transaltasignedagreement

Technical support document supplement for air quality general order for auto body shops.

This is the technical support document supplement for the air quality general order for auto body shops.

https://ecology.wa.gov/200808bodyshopstsd

Air quality general order for asphalt plants

This is the air quality general order for asphalt plants.

https://ecology.wa.gov/20110418goasphaltplants

Technical support document for the air quality general order for asphalt plants

This is the technical support document for the air quality general order for asphalt plants.

https://ecology.wa.gov/20110418asphaltplantstsd

Air quality general order for concrete batch plants

This is the air quality general order for concrete batch plants.

https://ecology.wa.gov/20111206goconcretebatchplants

Technical support document for air quality general order for concrete batch plants, December 6, 2011

This is the technical support document for the air quality general order for concrete batch plants, December 6, 2011.

https://ecology.wa.gov/20111206concretebatchplantstsd

Air quality general order for dry cleaners, December 6, 2011

This is the air quality general order for dry cleaners, December 6, 2011.

https://ecology.wa.gov/20111206gorockcrushers

Technical Support Document for air quality general order for rock crushers, December 6, 2011

This is the technical support document for the air quality general order for rock crushers, December 6, 2011.

https://ecology.wa.gov/20111206rockcrusherstsd

Technical support document for air quality general order for dairy manure anaerobic digesters

This is the technical support document for the air quality general order for dairy manure anaerobic digesters.

https://ecology.wa.gov/201203dairydigesterstsd

Air quality general order for dairy manure anaerobic digesters

This is the air quality general order for dairy manure anaerobic digesters.

https://ecology.wa.gov/20120421godairydigesters

Quincy Air Quality Maps

Maps of Quincy air quality before and after Microsoft Columbia Data Center permit (from 12/13/10 community forum), 12/10

https://ecology.wa.gov/maps-of-quincy-air-quality

2012 Instream Flow Recommendations for the Spokane River (WAC 173-557; 173-555) 01/27/15

2012 Instream Flow Recommendations for the Spokane River - Hal Beecher, WDFW Instream Flow Biologist May 31, 2012 WAC 173-557; 173-555 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010.

https://ecology.wa.gov/2012-instream-flow-recommendations-for-the-spokane

2011 Fact Sheet Sand and Gravel General Permit

Historical document for the Sand and Gravel General Permit.

https://ecology.wa.gov/2011-fact-sheet

2011 to 2016 Sand and Gravel Permit comparison

This shows the changes for the 2011 to 2016 Sand and Gravel General Permit.

https://ecology.wa.gov/2011-to-2016-permit-comparrison