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.
SWAC guidance document
An overview of guidance for local Solid Waste Advisory Committees
https://ecology.wa.gov/swac-guidance-document
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
Registered Manufacturers
List of registered paint manufacturers
https://ecology.wa.gov/paint-registered-manufacturers
A User's Guide to Compost
The Beauty of Your Lawn & Garden Blossoms from the Soil
https://ecology.wa.gov/compostusersguide
Ecology Organic Waste Reduction Hierarchy
A text version of the organics waste reduction hierarchy pyramid created by the Washington Department of Ecology to assist businesses and residents in efficiently managing organic wastes.
https://ecology.wa.gov/ecologyorganicsreductionhierarchy
Washington compost facilities and material types 2017
This is a spreadsheet listing Washington's composting facilities, the types of material they accept, and the quantities they handle.
https://ecology.wa.gov/washington-compost-facilities-and-material-types-2
WasteCharacterization2015-16
Washington's 2015-2016 waste characterization study samples landfills from across the state to estimate overall solid waste composition.
https://ecology.wa.gov/washington-waste-characterization-2015-2016
ERO Youth Application
An application for a crew member position for the Ecology Youth Corps' 2022 summer youth crews.
https://ecology.wa.gov/ero-youth-application
Vader-SEPA-letter
This is a letter from the City of Vader stating their proposal meets the Washington State Environmental Protection Act requirements.
https://ecology.wa.gov/vader-sepa-letter
Rulemaking Proposal WAC 173-350 01/23/18
This is the information the agency filed with the Office of the Code Reviser on January 23, 2018 to formally propose amendments to Chapter 173-350 WAC - Solid Waste Handling Standards
https://ecology.wa.gov/rulemaking-proposal-wac-173-350-01-23-18
2023 Local Government Satisfaction Report
This report includes the feedback from local governments about the E-Cycle Washington program's performance in 2023.
https://ecology.wa.gov/local-government-satisfaction-report
Waste 2 Resources Advisory Committee Roster
Current membership roster for the Waste 2 Resources Advisory Committee
https://ecology.wa.gov/w2racmembership
2023 PPG Awards
This is Ecology's list of 2023 – 2025 Public Participation Grants awards.
https://ecology.wa.gov/2023-awards
Lithium-ion battery management under Chapter 173-303 WAC, Dangerous Waste Regulations
This memo clarifies how businesses can safely manage lithium-ion batteries as universal waste under the Dangerous Waste Regulations.
https://ecology.wa.gov/memo-lithium-ion-batteries
WasteGenerationAndRecovery-2021
This is Solid Waste Managment's public dataset covering waste generation, recycling, and recovery quantities in 2021.
https://ecology.wa.gov/wastegenerationandrecovery-2021-updated-3-19-24
6-24-24 Meeting Notes
This document contains the 6-24-24 meeting notes of the Advisory Committee on battery stewardship rulemaking in Washington.
https://ecology.wa.gov/6-24-24-meeting-notes
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
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
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