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.
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
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
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
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
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
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.
https://ecology.wa.gov/2011-comprehensive-emissions-inventory-categories
2011 point source emissions annual summary
This is a spreadsheet of the annual summary of 2011 point source emissions.
https://ecology.wa.gov/2011-point-source-emissions-summary
Baseline modeling inventory for Prevention of Significant Deterioration-permitted facilities
This is a spreadsheet of the baseline modeling emissions inventory for Prevention of Significant Deterioration-permitted facilities.
https://ecology.wa.gov/201603prevsignificantdeteriorationbaseline
2014 emissions inventory for Prevention of Significant Deterioration-permitted facilities
This is the spreadsheet of 2014 emissions inventory for facilities with a Prevention of Significant Deterioration permit.
https://ecology.wa.gov/201603prevsignificantdeteriorationinventory
Input data for modeling emissions inventory for Prevention of Significant Deterioration-permitted facilities
This is a spreadsheet of the input data for modeling emissions inventory for Prevention of Significant Deterioration-permitted facilities.
https://ecology.wa.gov/201603prevsignificantdeteriorationsupp
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