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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AltChart-WasteTires

This is an .xlsx file

https://ecology.wa.gov/altchart-wastetires

WA Composted Materials 2023

This is Solid Waste Management's list of Washington compost facilities and the types of materials they accept.

https://ecology.wa.gov/wa-composted-materials-2023

Prior years point source emissions data

This spreadsheet shows emissions from facilities and other point sources from 2009 forward.

https://ecology.wa.gov/prior-years-point-source-emissions

Alt chart-Biosolids quality and use 2022

This spreadsheet is an alternative version of a chart representing Washington's biosolids management.

https://ecology.wa.gov/alt-chart-biosolids-quality-and-use-2022

Alt chart-Biosolids quality and use 2022

This spreadsheet is an alternative version of a chart representing Washington's biosolids management.

https://ecology.wa.gov/alt-chart-biosolids-quality-and-use-2022-052aecf47b873b032b1db858be036363

Solid Waste Facilities

This is Ecology's list of active solid waste facilities in Washington.

https://ecology.wa.gov/solid-waste-facilities

Washington State Climate Resilience Strategy Public Comment Draft

This draft public comment period details how to provide comments and feedback on the Climate Resilience Strategy.

https://ecology.wa.gov/public-comment-draft

Grant Application for Air Quality in Overburdened Communities Grant: Frequently Asked Questions, October 15, 2024

This is the October 15, 2024 frequently asked questions (FAQ) about the grant application for Air Quality in Overburdened Communities Grant.

https://ecology.wa.gov/20241015overburdenedfaq

Solid waste & recycling data

View data on solid waste collection and recycling in Washington.

https://ecology.wa.gov/research-data/data-resources/solid-waste-recycling-data

Washington State Hydrography Dataset Program

Mapping surface waters in Washington.

https://ecology.wa.gov/research-data/data-resources/geographic-information-systems-gis/hydrography-program-washd

GIS Data

Ecology's authoritative GIS data layers are available for download.

https://ecology.wa.gov/research-data/data-resources/geographic-information-systems-gis/data

Presentation (WAC 173-400; WAC 173-401) 4-18-24

This is a presentation for the April 18, 2024 stakeholder meeting for Chapter 173-400 WAC, General Regulations for Air Pollution Sources and Chapter 173-401 WAC, Operating Permit Regulation.

https://ecology.wa.gov/presentation-wac-173-400;-wac-173-401-4-18-24

Northeast West Plains PFAS in drinking water sampling results map

The EPA created this map to summarize where samples were taken without showing private well locations.

https://ecology.wa.gov/west-plains-pfas-sampling-results-map

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

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.