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.
2021 Areas of Concern map
2021 map showing areas of concern for criteria pollutants
https://ecology.wa.gov/20210806-aoc-map-alt
H5 Data Center Preliminary Determination
This is the draft preliminary determination for H5 Data Center
https://ecology.wa.gov/20211110h5draftpreldet
H5 Data Center Notice of Construction Application
This is the notice of construction application for H5 Data Center
https://ecology.wa.gov/20211110h5nocapp
H5 Data Center Health Impact Assessment Report
This is the Health Impact Assessment Report for H5 Data Center
https://ecology.wa.gov/20211110h5healthimpactassessment
H5 Data Center Notice of Construction Application DOE
This is the notice of construction application for H5 Data Center from Ecology
https://ecology.wa.gov/20211110h5nocappdoe
H5 Data Center Health Impact Assessment Recommendation
This is the Health Impact Assessment Recommendation for H5 Data Center
https://ecology.wa.gov/20211110h5tier2hiarec
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