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.
Douglas County solid waste service level ordinance
A sample ordinance from Douglas County outlining minimum service levels for solid waste.
https://ecology.wa.gov/douglas-county-solid-waste-service-level-ordinance
Certificate of compliance: PFAS in food packaging 2024
This is the certificate of compliance for food packaging manufacturers for items regulated as of May 2024.
https://ecology.wa.gov/certificate-of-compliance-2024
Certificate of compliance 2023
Manufacturers that produce food packaging sold in Washington must fill out a Certificate of Compliance to show they meet the PFAS in food packaging rules
https://ecology.wa.gov/certificate-of-compliance-2023
SPWA Sept 25 webinar materials
This is the PowerPoint presentation for the webinar conducted on Sept. 25, 2024 for WAC 173-339.
https://ecology.wa.gov/sept-25-webinar-materials
Publication index: Mercury information
List of links to documents related to mercury.
https://ecology.wa.gov/mercury
Publication index: Per- and Poly-fluorinated Alkyl Substances (PFAS)
List of links to documents and posters about PFAS
https://ecology.wa.gov/per-and-poly-fluorinated-alkyl-substances-pfas
Publication index: Polychlorinated Biphenyls (PCBs)
List of links to documents and posters about polychlorinated biphenyls (PCBs)
https://ecology.wa.gov/polychlorinated-biphenyls-pcbs
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
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
Registered Manufacturers
List of registered paint manufacturers
https://ecology.wa.gov/paint-registered-manufacturers
SEPA determination of nonsignificance
This document is a determination of nonsignificance (DNS) in which Ecology has determined the proposed biosolids general permit will not have a probable significant adverse impact on the environment.
https://ecology.wa.gov/sepa-determination-of-nonsignificance-26201b433614b0478c7dbc8114f0a4ba
E-Cycle Washington - registered participants
View the list of registered manufacturers, collectors, transporters or processors in the E-Cycle Washington electronic products recycling program.
https://ecology.wa.gov/e-cycle-washington-registered-participants
Bonneville Power Administration TSD permit (PDF)
A permit issued in 2011 allowing the Bonneville Power Administration to treat, store and dispose of dangerous waste.
https://ecology.wa.gov/bonneville-power-administration-tsd-permit
A User's Guide to Compost: The Beauty of Your Lawn and Garden Blossoms from the Soil
A composting guide aimed at homeowners.
https://ecology.wa.gov/a-user-s-guide-to-compost-the-beauty-of-your-lawn
Building Soil: Guidelines and Resources for Implementing Soil Quality and Depth BMP T5.13
Best management practices for composting and soil management.
https://ecology.wa.gov/building-soil-guidelines-and-resources-for-implem
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
2012 Annual Report from WMMFA
This annual E-Cycle Washington report indicates the total CEPs collected in 2012 and the year to date total of CEPs collected. Additionally, this report breaks down the pounds collected by county and product type.
https://ecology.wa.gov/2012annualreportfromwmmfa
Biosolids_EasternWA_LandApp
This map shows locations of biosolids land application sites in Eastern Washington.
https://ecology.wa.gov/biosolids_easternwa_landapp
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