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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2011 comprehensive emissions inventory three-year summary

This is a spreadsheet of the 2011 comprehensive three-year emissions inventory.

https://ecology.wa.gov/2011-comprehensive-emissions-inventory-summary

2011 County Emissions Inventory Technical Documentation

This document describes the methods and data sources used to estimate emissions for base year 2011.

https://ecology.wa.gov/201410countyemissionsinventory2011

Minor source baseline dates by county

This is a spreadsheet of minor sources with baseline dates by county.

https://ecology.wa.gov/201502minorsourcebaselinecounty

2011 Comprehensive Emissions Inventory Categories Reference

This reference document summarizes the methods used to prepare the Washington 2011 County Emissions Inventory.

https://ecology.wa.gov/2011-comprehensive-emissions-inventory-categories

Washington Emissions Inventory Reporting System (WEIRS) Add New Emissions form

form to add new emissions in Washington Emissions Inventory Reporting System (WEIRS)

https://ecology.wa.gov/addnewemissions

Washington Emissions Inventory Reporting System (WEIRS) Add New Process form

form to add new process in Washington Emissions Inventory Reporting System (WEIRS)

https://ecology.wa.gov/addnewprocess

Letter to EPA for Partial Withdrawal of SIP Submittal

Letter to EPA to withdraw part of Prevention of Significant Deterioration Rules into the State Implementation Plan

https://ecology.wa.gov/withdrawalltrnewpsdghgsept52014

Washington Emissions Inventory Reporting System (WEIRS) Add New Release Point form

Form to add new release point in Washington Emissions Inventory Reporting System (WEIRS)

https://ecology.wa.gov/addnewreleasepoint

Washington Emissions Inventory Reporting System (WEIRS) Add New Unit form

Form to add new unit in Washington Emissions Inventory Reporting System (WEIRS)

https://ecology.wa.gov/addnewunit

RS Manager Data Center air permit approval order 14AQ-E582

This is the 2014 air quality permit approval order for RS Manager Data Center in Moses Lake.

https://ecology.wa.gov/20141029rsmanager14aqe582

Microsoft Columbia Data Center - Notice of Construction permit

Notice of Construction permit for Microsoft Columbia Data Center, 8/19/14

https://ecology.wa.gov/microsoft-columbia-noc

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

Technical Support Document for Notice of Construction permit for Microsoft Columbia Data Center, 8/19/14

https://ecology.wa.gov/microsoft-columbia-tsd

Sabey Intergate Data Center - Request for revisions for Notice of Construction permit

Request for revisions to Notice of Construction permit for Sabey Intergate Data Center, 3/4/15

https://ecology.wa.gov/revrequestao030415

Sabey Intergate Data Center - Updated Health Impact Assessment

Updated Health Impact Assessment (Second Tier Review) Recommendation for Sabey Intergate Data Center, 3/3/15

https://ecology.wa.gov/updaterpt2ndtier

Microsoft Oxford Data Center - Draft Notice of Construction permit

Draft Notice of Construction Permit for Microsoft Oxford Data Center, 5/14/15

https://ecology.wa.gov/draftpermit

Microsoft Oxford Data Center - Health Impact Assessment letter

Health Impact Assessment (Second Tier Review) Letter for Microsoft Oxford Data Center, 5/13/15

https://ecology.wa.gov/20150513oxfordhialtr

Microsoft Oxford Data Center - Health Impact Assessment Recommendation

Health Impact Assessment (Second Tier Review) Recommendation for Microsoft Oxford Data Center, 5/13/15

https://ecology.wa.gov/20150513oxfordhiarec

Microsoft Oxford Data Center - Notice of Construction application

Notice of Construction Application for Microsoft Oxford Data Center, 2/15/15

https://ecology.wa.gov/20150215oxfordnocapp

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

Notice of Construction Technical Support Document for Microsoft Oxford Data Center, 8/15/14

https://ecology.wa.gov/microsoftoxford-tsd-final

Microsoft Oxford Data Center - Response to Comments Appendices

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

https://ecology.wa.gov/oxfordresponsivenesssumm-part2