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.
TransAlta Best Available Retrofit Technology (BART) order, second revision, 7/29/20
This is the second revised TransAlta Best Available Retrofit Technology (BART) order, 7/29/20.
https://ecology.wa.gov/20200729transaltabartorderrevised
Technical Support Document for Best Available Retrofit Technology (BART) order second revision, TransAlta, 7/20
This is the technical support document for the second revision of the Best Available Retrofit Technology (BART) order for TransAlta, 7/20.
https://ecology.wa.gov/202007transaltabart2tsd
2020 SO2 attainment recommendation for Chelan and Douglas counties
Ecology's recommendation to EPA that the agency find Chelan and Douglas counties to be in attainment for sulfur dioxide air pollution.
https://ecology.wa.gov/20200716-ecologyso2attainmentrecommendationdouglas
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
Ecology comments to EPA on proposed ozone NAAQS standard
Comments submitted to EPA on the agency's proposed ozone standards.
https://ecology.wa.gov/20200929-ecology-ozone-naaqs-comments
2020 regional haze overview presentation
An overview of the regional haze air quality process.
https://ecology.wa.gov/20201203-regional-haze-overview-presentation
Sabey Data Center Approval Order 20AQ-E22
This is the 2020 approval order for Sabey Data Center in Quincy.
https://ecology.wa.gov/20200916sabeydatacenterao20aqe22
Sabey Data Center 2020 Tier 2 letter & HIA Recommendation
This is the 2020 Tier 2 letter and Health Impact Assessment Recommendation for Sabey Data Center, Quincy
https://ecology.wa.gov/20200529sabeytier2hiarecomm
H5 Data Centers notice of construction (NOC) application and supporting information
This is the air quality notice of construction application and supporting information for H5 Data Centers in Grant County, near Quincy.
https://ecology.wa.gov/20211110h5revnocapp
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