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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Monitoring Ozone Air Pollution in Quincy

Information about Monitoring for Ozone Air Pollution in Quincy, 1/30/12

https://ecology.wa.gov/quincyozone

Yakima Air Wintertime Nitrate Study

A study about high nitrate levels in Yakima's winter air.

https://ecology.wa.gov/yakimaairwinterstudyreport

TransAlta Memorandum of Agreement (MOA), 12/23/11

This is the Memorandum of Agreement (MOA) for TransAlta, 12/23/11.

https://ecology.wa.gov/transaltasignedmou

TransAlta Best Available Retrofit Technology (BART) order, revised, 12/13/11

This is the first revised TransAlta Best Available Retrofit Technology (BART) order, 12/13/11.

https://ecology.wa.gov/transaltarevisedbartco12-13-11

The Kent, Seattle, and Tacoma Second 10‐Year Limited Maintenance Plan for Particulate Matter (PM10)

State Implementation Plan Revision for a Second 10-Year Particulate Matter (PM10) Maintenance Plan for three Puget Sound areas

https://ecology.wa.gov/seattlekenttacomalimitedmaintenanceplanpm10

Infrastructure State Implementation Plan for 1997 Ozone Standard

State Implementation Plan Certification for the 1997 8-Hour Ozone Standard

https://ecology.wa.gov/infrastructuresip1997ozonefinal2

Technical support document for air quality general order for dairy manure anaerobic digesters

This is the technical support document for the air quality general order for dairy manure anaerobic digesters.

https://ecology.wa.gov/201203dairydigesterstsd

Air quality general order for dairy manure anaerobic digesters

This is the air quality general order for dairy manure anaerobic digesters.

https://ecology.wa.gov/20120421godairydigesters

Vantage Data Center - Notice of Construction permit and technical support document

Notice of Construction permit and Technical Support Document for Vantage Data Center, 3/18/13

https://ecology.wa.gov/vantagefinalpermit

Vantage Data Center - Health Impact Assessment Recommendation

Health Impact Assessment (Second Tier Review) Recommendation, 11/30/12

https://ecology.wa.gov/b-updated-vantage-tier2-recommendation-11302012

Vantage Notice of Construction Revised Tier 2

This is the Vantage Data Center's revised final 2012 Notice of Construction support document for Tier 2 review.

https://ecology.wa.gov/20121128nocrevtier2

Vantage Data Center - Technical Support Document for Health Impact Assessment

Risk Analysis Technical Support Document for Health Impact Assessment (Second Tier Review) for Vantage Data Center, 11/28/12

https://ecology.wa.gov/a-revised-final-tier2-risk-analysis-vantage-112820

Vantage 2012 Notice of Construction Appendices

This document contains all the appendices for Vantage Data Center's notice of construction application from 2012.

https://ecology.wa.gov/20121018nocappendices

Microsoft Oxford Data Center - Notice of Construction permit

Notice of Construction Permit for Microsoft Oxford Data Center, 8/15/14

https://ecology.wa.gov/microsoftoxford-noc

Microsoft Oxford Data Center - Response to Comments

Response to Comments for Microsoft Oxford Data Center, 8/15/14

https://ecology.wa.gov/oxfordresponsivenesssumm-part1

Microsoft Oxford Data Center - Health Impact Assessment Recommendation

Health Impact Assessment (Second Tier Review) Recommendation for Microsoft Oxford Data Center, 8/12/14

https://ecology.wa.gov/microsoftoxfordhiarecommendationupdated

Microsoft Oxford Data Center - Health Impact Assessment letter

Health Impact Assessment (Second Tier Review) Letter for Microsoft Oxford Data Center, 6/13/14

https://ecology.wa.gov/microsoftoxfordtier2letter-06132014

Microsoft Oxford Data Center - Notice of Construction application

Notice of Construction Application for Microsoft Oxford, 6/11/14

https://ecology.wa.gov/final-project-oxford-noc-rpt-06-11-14

Microsoft Oxford Data Center - Health Impact Assessment

Health Impact Assessment (Second Tier Review) for Microsoft Oxford, 6/11/14

https://ecology.wa.gov/final-project-oxford-risk-analysis-rpt-06-11-14

Microsoft Oxford Data Center Map

Map of proposed project location of Microsoft Oxford Data Center, 1/14

https://ecology.wa.gov/microsoftoxforddatacenter