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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Masonry heaters that meet Washington standards, October 10, 2016

This is the October 10, 2016 list of masonry heaters that meet Washington standards.

https://ecology.wa.gov/20161010masonryheaters

Pacific Northwest Volkswagen (VW) Zero-Emissions Vehicle (ZEV) Investment Proposal

Investment proposal for Pacific Northwest Volkswagen (VW) Zero-Emissions Vehicle (ZEV)

https://ecology.wa.gov/20161223pnwzevinvestmentproposal

Volkswagen (VW) Notice of Penalty - State

State Notice of Penalty for Volkswagen (VW)

https://ecology.wa.gov/07082016vwnoticeofpenalty-state

Vantage Data Center - Health Impact Assessment Recommendation

Health Impact Assessment (Second Tier Review) Recommendation for Vantage Data Center, 5/11/17

https://ecology.wa.gov/vantage-hiarec-051117ada

Vantage Data Center - Health Impact Assessment letter

Health Impact Assessment (Second Tier Review) Letter for Vantage Data Center, 5/11/17

https://ecology.wa.gov/vantage-tier2ltr-final-051117ada

2017 Baseline Carbon Intensities for Blended Fuels (WAC 173-424) 11-28-22

This is a spreadsheet of 2017 baseline carbon intensities for blended fuels, November 28, 2022 version.

https://ecology.wa.gov/2017-baseline-carbon-intensities-for-blended-f-2

Vantage Data Center - Revised Health Impact Assessment response

Revised Health Impact Assessment (Second Tier Review) response for Vantage Data Center, 11/16/16

https://ecology.wa.gov/vantage-revfinal-2ndtier-ra-111616ada

Vantage Data Center - Notice of Construction application

Notice of Construction application for Vantage Data Center, 8/10/16

https://ecology.wa.gov/vantage-noc-app-supprpt-081016ada

2017 Baseline Carbon Intensities for Blended Fuels (WAC 173-424) 7-15-22

This is a spreadsheet of 2017 baseline carbon intensities for blended fuels, July 15, 2022 version.

https://ecology.wa.gov/2017-baseline-carbon-intensities-for-blended-f-1

2017 Baseline Carbon Intensities for Blended Fuels (WAC 173-424) 04-22

This is a spreadsheet of 2017 baseline carbon intensities for blended fuels, April 2022 version.

https://ecology.wa.gov/2017-baseline-carbon-intensities-for-blended-fuels

Microsoft Oxford Data Center - Notice of Construction permit

Microsoft Oxford Notice of Construction Permit, 1/26/17

https://ecology.wa.gov/mwh-ao-01262017

Microsoft Oxford Data Center - Technical Support Document

Technical Support Document for Microsoft Oxford Data Center, 1/26/17

https://ecology.wa.gov/mwh-tsd-01262017

Microsoft Oxford Data Center - Legal Notice

Legal notice for Microsoft Oxford, 11/3/16

https://ecology.wa.gov/mwh-legalnotice-11032016

Microsoft Oxford Data Center - Legal Notice

Legal notice for Microsoft Oxford Data Center, 10/6/16

https://ecology.wa.gov/mwh-legal-10062016

Microsoft Oxford Data Center - Health Impact Assessment letter

Health Impact Assessment (Second Tier Review) Letter for Microsoft Oxford Data Center, 9/27/16

https://ecology.wa.gov/mwh-tier2ltr-09272016

Microsoft Oxford Data Center - Health Impact Assessment (second revised)

Second Revised Health Impact Assessment for Microsoft Oxford Data Center, 9/27/16

https://ecology.wa.gov/mwh-hiarec-09272016

Microsoft Oxford Data Center - Draft Notice of Construction permit

Draft notice of construction permit for Microsoft Oxford Notice of Construction Application, 9/22/16

https://ecology.wa.gov/mwh-pd-09222016

Microsoft Oxford Data Center - Technical Support Document for Draft Notice of Construction permit

Draft Notice of Construction Technical Support Document for Microsoft Oxford Data Center, 9/22/16

https://ecology.wa.gov/mwh-tsd-09222016

Microsoft Oxford Data Center - Completeness letter

Completeness determination letter for Microsoft Oxford Data Center

https://ecology.wa.gov/mwh-completeness-09202016

NTT Data Services notice of construction (NOC) permit

This is the May 2017 amended air quality notice of construction permit for NTT Data Services in Quincy.

https://ecology.wa.gov/20170504nttdatanocpermit