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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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

H5 Data Center Tier 2 Letter

This is the Tier 2 letter for H5 Data Center

https://ecology.wa.gov/20211110h5tier2ltr

H5 Data Center Technical Support Document

This is the Technical Support Document for H5 Data Center

https://ecology.wa.gov/2021h5tsd

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

H5 Data Center notice of construction (NOC) permit

This is the November 2024 air quality notice of construction permit (approval order) for H5 Data Center in Quincy.

https://ecology.wa.gov/20241126h5nocpermit

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

Two Rivers Terminal Notice of Construction (NOC) application and associated documents

This is the air quality notice of construction application and associated documents for Two Rivers Terminal in Pasco.

https://ecology.wa.gov/20241106trtnocapp

Uniontown Cooperative SEPA Determination of Non-Significance (DNS)

This is the SEPA Determination of Non-Significance (DNS) for Uniontown Cooperative in Uniontown.

https://ecology.wa.gov/20240507uniontowncoopsepa

Columbia Cedar Notice of Construction (NOC) application and associated documents

This is the air quality notice of construction application and associated documents for Columbia Cedar in Kettle Falls.

https://ecology.wa.gov/20241106columbiacedarnocapp

Uniontown Cooperative notice of construction (NOC) application and associated documents

This is the air quality notice of construction application and associated documents for Uniontown Cooperative in Uniontown.

https://ecology.wa.gov/20240808uniontowncoopnocapp

Online tool: Washington air quality map

Map-based tool providing near real-time air quality information to protect health. It's used to determine if air quality meets health-based federal standards.

https://ecology.wa.gov/air-monitoring-network

Presentation (WAC 173-448) 12-12-24

This is a presentation for the December 12, 2024 stakeholder meeting for Chapter 173-448 WAC, Air Quality in Overburdened Communities.

https://ecology.wa.gov/presentation-wac-173-448-12-12-24

Air Quality Index (AQI)

The Air Quality Index (AQI) tells you when air quality is healthy or unhealthy.

https://ecology.wa.gov/research-data/monitoring-assessment/air-quality-index

Eyes Over Puget Sound

We provide documentation of Puget Sound waterways using community submissions and aerial photography.

https://ecology.wa.gov/research-data/monitoring-assessment/puget-sound-and-marine-monitoring/eyes-over-puget-sound

November 9, 2023 presentation about 2023-2025 electric school bus grant

This is the November 9, 2023 presentation about 2023-2025 electric school bus grant.

https://ecology.wa.gov/20231109evschoolbus

VW grant notice for garbage trucks, etc. May 2023 (updated August 2023)

This is the August 2023 grant notice for zero-emission refuse vehicles, street sweepers, freight switcher locomotives, and port cargo handling equipment.

https://ecology.wa.gov/asset-collections-doc-assets-air-quality-vw-202305vwgrant

Grant Application for Diesel to Zero-Emission Refuse Vehicles, Street Sweepers, PCHE, and Freight Switchers: Frequently Asked Questions, July 17, 2023

This is the July 2023 frequently asked questions (FAQ) about the grant for zero-emission refuse vehicles,street sweepers, port cargo handling equipment, and freight switcher locomotives.

https://ecology.wa.gov/202307vwzevfaq

Application checklist for Level 2 EV charging, July 2024

This is the July 2024 application checklist for Level 2 EV charging stations.

https://ecology.wa.gov/202407ev2checklist

Level 2 Grant application instructions

Application instructions for Level 2 grant funding: Charge Where You Are

https://ecology.wa.gov/202309ev2instructions