Research & Data

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

Ecology provides the high-quality science that is the foundation of Washington state environmental policy. Our monitoring, assessment, and modeling services provide a data-rich understanding of our state’s land, air, and water. We provide access to that data through reports, databases, maps and user-friendly online tools.

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How to Create a SAW Account for Source Management System (SMS)

These are instructions for how to create a SAW account, register for Air Quality Portal, and add Source Management System (SMS).

https://ecology.wa.gov/202007createsawsms

Source Management System (SMS) User Guide

These are instructions for using the Source Management System (SMS).

https://ecology.wa.gov/202007smsuserguide

Creating a SAW account for Washington Emissions Inventory Reporting System (WEIRS)

Instructions for creating a SAW account for Washington Emissions Inventory Reporting System (WEIRS)

https://ecology.wa.gov/20190723creatingsawweirsaccount

Washington Emissions Inventory Reporting System (WEIRS) Emissions Inventory Codes

Emissions Inventory Codes for Washington Emissions Inventory Reporting System (WEIRS), 12/20/19

https://ecology.wa.gov/20191220emissionsinventorycodes

Washington Emissions Inventory Reporting System (WEIRS) Add New Emissions form

form to add new emissions in Washington Emissions Inventory Reporting System (WEIRS)

https://ecology.wa.gov/addnewemissions

Washington Emissions Inventory Reporting System (WEIRS) Add New Process form

form to add new process in Washington Emissions Inventory Reporting System (WEIRS)

https://ecology.wa.gov/addnewprocess

Washington Emissions Inventory Reporting System (WEIRS) Add New Release Point form

Form to add new release point in Washington Emissions Inventory Reporting System (WEIRS)

https://ecology.wa.gov/addnewreleasepoint

Washington Emissions Inventory Reporting System (WEIRS) Add New Unit form

Form to add new unit in Washington Emissions Inventory Reporting System (WEIRS)

https://ecology.wa.gov/addnewunit

Washington Emissions Inventory Reporting System (WEIRS) training, 2/8/23

This is the presentation for the February 8, 2023 training about Washington Emissions Inventory Reporting System (WEIRS).

https://ecology.wa.gov/20230208weirstraining

Air Quality Source Management System (SMS) Instructions

These are instructions about how to create a Secure Access Washington (SAW) Account, register for Air Quality Portal, and add Source Management System.

https://ecology.wa.gov/aqsmsinstructions

Air Quality Source Management System (SMS) User Guide

This is the user guide for the Source Management System (SMS).

https://ecology.wa.gov/aqsmsuserguide

Washington Emissions Inventory Reporting System (WEIRS) training, 2/1/24

This is the presentation for the February 1, 2024 training about Washington Emissions Inventory Reporting System (WEIRS).

https://ecology.wa.gov/20240201weirstraining

Rulemaking Announcement (WAC 173-400; WAC 173-401) 01-18-24

This is a rulemaking announcement (CR-101) for WAC 173-400, General Regulations for Air Pollution Sources and WAC 173-401, Operating Permit Regulation.

https://ecology.wa.gov/rulemaking-announcement-wac-173-400;-wac-173-401-01-18-24

Agenda (WAC 173-400; WAC 173-401) 4-18-24

This is the agenda for the April 18, 2024 stakeholder meeting for Chapter 173-440 WAC, General Regulations for Air Pollution Sources and Chapter 173-401 WAC, Operating Permit Regulation.

https://ecology.wa.gov/agenda-wac-173-400;-wac-173-401-4-18-24

Draft Source Test Manual (WAC 173-400; WAC 173-401) 4-9-24

This is the April 9, 2024 draft of the air quality Source Test Manual.

https://ecology.wa.gov/draft-source-test-manual-wac-173-400;-wac-173-401-4-9-24

Draft rule language (WAC 173-400) 3-18-24

This is the March 18, 2024 draft rule language for Chapter 173-400 WAC, General Regulations for Air Pollution Sources.

https://ecology.wa.gov/draft-rule-language-wac-173-400-3-18-24

Draft rule language (WAC 173-401) 3-18-24

This is the March 18, 2024 draft rule language for Chapter 173-401 WAC, Operating Permit Regulations.

https://ecology.wa.gov/draft-rule-language-wac-173-401-3-18-24

Presentation (WAC 173-400; WAC 173-401) 4-18-24

This is a presentation for the April 18, 2024 stakeholder meeting for Chapter 173-400 WAC, General Regulations for Air Pollution Sources and Chapter 173-401 WAC, Operating Permit Regulation.

https://ecology.wa.gov/presentation-wac-173-400;-wac-173-401-4-18-24

Presentation (WAC 173-400; WAC 173-401) 5-15-24

This is a presentation for the May 15, 2024 stakeholder meeting for Chapter 173-400 WAC, General Regulations for Air Pollution Sources and Chapter 173-401 WAC, Operating Permit Regulation.

https://ecology.wa.gov/presentation-wac-173-400;-wac-173-401-5-15-24

Air Operating Permit Report for Fiscal Years 2026 and 2027, June 2024

This is the workload analysis and budget report for the Air Operating Permit Program for Fiscal Years 2026 and 2027, June 2024 version.

https://ecology.wa.gov/202406aopreportfy26