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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Draft Washington State Implementation Plan (SIP) Revision: Redesignation to Attainment and First 10-Year Maintenance Plan for the Intalco-Ferndale Sulfur Dioxide Nonattainment Area

This is the draft Washington State Implementation Plan (SIP) Revision: Redesignation to Attainment and First 10-Year Maintenance Plan for the Intalco-Ferndale Sulfur Dioxide Nonattainment Area.

https://ecology.wa.gov/202403intalcoso2maintsip

CyrusOne notice of construction (NOC) application

This is the air quality notice of construction application for CyrusOne Data Center in Quincy.

https://ecology.wa.gov/20240509cyrusonenocapp

H5 Data Centers notice of construction (NOC) application

This is the air quality notice of construction application for H5 Data Centers in Quincy.

https://ecology.wa.gov/20240402h5nocapprev