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.
Composted materials by facility
This spreadsheet lists Washington's compost facilities and the types of materials they process.
https://ecology.wa.gov/composting-facilities-and-materials
Landfill Report 2015
A spreadsheet showing quantities of materials collected and broken down by material type for each landfill facility.
https://ecology.wa.gov/landfillreport2015
Emergency flood response
Outlining ecology's various roles in emergency flood response.
https://ecology.wa.gov/emergency-flood-response-who-does-what
Composted Materials in Washington State
Data on the types of materials that Washington's facilities compost.
https://ecology.wa.gov/composted-materials
FoodTypesComposted-AltChart
This spreadsheet shows data on the quantities and types of food composted in Washington.
https://ecology.wa.gov/foodtypescomposted-altchart
Disposal by County 1994-2021
This spreadsheet lists solid waste disposal data by Washington counties from 1994 to 2021
https://ecology.wa.gov/disposal-by-county-1994-2021-updated-3-19-24
Disposal by facility 2021
This spreadsheets lists 2021 data of disposal by Washington facilities.
https://ecology.wa.gov/disposal-by-facility-2021-updated-3-19-24
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
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