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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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

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

2021 Areas of Concern map

2021 map showing areas of concern for criteria pollutants

https://ecology.wa.gov/20210806-aoc-map-alt

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

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