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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The Tri-Cities Ozone Precursor Study

A report on the ozone study conducted in the Tri-Cities area.

https://ecology.wa.gov/20171212tricitiesozoneprecursorstudy

State Implementation Plan Process

This is the text version of the steps to develop and finalize a state implementation plan.

https://ecology.wa.gov/171026stateimplementationplanprocess-alt-docx

Washington Mandatory Greenhouse Gas Reporting Program - Reported Emissions for 2012-2015

Certain large facilities are required to submit their greenhouse gas emissions to Ecology. This is the report of those emissions from 2012-2015.

https://ecology.wa.gov/wa-ghg-reporting-data-2012-2015

VW Final Executed Trust Agreements, October 2017

United States' notice of final trust agreement for VW federal settlement.

https://ecology.wa.gov/vwfinalexecutedtrust-agreements

2017 VW affected vehicles registered in Washington.

The text version for the map showing where, by percentage, the affected cars are registered in Washington.

https://ecology.wa.gov/2017affectedvwcars-alt

Washington State Agencies Required to Report their Greenhouse Gas Emissions to Ecology

Some Washington state agencies are required to report their greenhouse gas emissions to Ecology. This is a list of those that are required.

https://ecology.wa.gov/stateagenciesrequiredtoreportghg

Washington State Agency Greenhouse Gas Reporting and Calculator Instructions

Instructions to help state agencies fill out the greenhouse gas calculator.

https://ecology.wa.gov/stateagencyghgcalculatorinstructions

Approved verifiers and verification bodies for greenhouse gas reporting

A list of approved third party verifiers and verification bodies in Washington's Greenhouse Gas Reporting Program.

https://ecology.wa.gov/2017ghgverifierlist

Oath Approval Order 16AQ-E012 Amendment 2

This is the 2017 amendment 2 approval order for Oath Holdings in Quincy.

https://ecology.wa.gov/20171222oath16aq-e012amend2

Continued Response Actions to Partial Collapse of PUREX Tunnel 1

Due to the continued immediate threat to human health and the environment posed by the instability of PUREX Tunnel 1, Ecology approves grouting of PUREX Tunnel 1 as an interim stabilization measure.

https://ecology.wa.gov/20170608purexgroutresponse

Yahoo Data Center - Legal notice for revised Notice of Construction permit

Legal notice for revised Notice of Construction permit for Yahoo Data Center, 8/8/17

https://ecology.wa.gov/yahoolegalnotice08082017

Amended Administrative Order Docket #15419 amending Order Docket #14156

This amended order adds PUREX Tunnel 2 to the scope of Corrective Action 3 and provides additional time for USDOE-RL and CHPRC to complete Corrective Action 3.

https://ecology.wa.gov/20170915purexamendedorder

Yahoo Data Center - Technical Support Document for Notice of Construction permit

Technical Support Document for Notice of Construction permit for Yahoo Data Center, 7/13/17

https://ecology.wa.gov/yahoopd16aqe012amd1

Yahoo Data Center - Notice of Construction application

Notice of Construction application for Yahoo Data Center, 6/9/17

https://ecology.wa.gov/yahoonocapp060917

Vantage Data Center, Quincy Agreed Order with TSD & R2C

This is the Agreed Order 16AQ-E026 for Vantage Data Center with the Technical Support Doc and the Response to Comments attached.

https://ecology.wa.gov/201712vantagequincyao16aq-e026-tsd-r2c

2017 Noxious Weed General Permit

Noxious Weed General Permit from 2017.

https://ecology.wa.gov/2017noxiousweedpermit

2017 Noxious Weed General Permit Fact Sheet

Noxious Weed General Permit Fact Sheet from 2017.

https://ecology.wa.gov/2017noxweedfactsheet

Potential MS4 Outfall Reporting Standard Attribute Information (February 2017)

This handout was created as part of the MS4 Outfall Reporting Standard presentation and illustrates our initial thinking on what a MS4 outfall reporting standard might look like.

https://ecology.wa.gov/2017outfallhandout

Meeting introduction for Reissuance of the Phase I and Western Washington Phase II Municipal Stormwater Permits

This is a meeting agenda and background for the public meetings of the Reissuance of the Phase I and Western Washington Phase II Municipal Stormwater Permits in 2017.

https://ecology.wa.gov/2017pubmtgagenda

Public meeting table prompts for MS4 reissuance 2017

This is the list of table prompts from the public meeting for the MS4 reissuance process.

https://ecology.wa.gov/2017pubmtgtableprompts