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
List of Businesses Participating in Product Replacement Programs
List of businesses participating in our product replacement programs.
https://ecology.wa.gov/prp-businesses
PCBs in building materials
Learn which building materials could contain PCBs.
https://ecology.wa.gov/interactive-doc-pcbs-in-building-materials
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
LightRecycle Producers List 2023
This document lists producers of mercury lights in Washington state.
https://ecology.wa.gov/lightrecycle-producers-list-2020
Chapter 4H Lab Control Log
WASTE TREATMENT AND IMMOBILIZATION PLANT CHAPTER 4H ANALYTICAL LABORATORY (LAB) CHANGE CONTROL LOG
https://ecology.wa.gov/chapter-4h
Occidental Storymap Plain Text Accessible
Plain text accessible PDF of the Occidental storymap
https://ecology.wa.gov/occidental-storymap-plain-text
Chapter 6A Inspection Plan
WASTE TREATMENT AND IMMOBILIZATION PLANT CHAPTER 6A INSPECTION PLAN CHANGE CONTROL LOG
https://ecology.wa.gov/chapter-6a
Guidance on enforcement of lead, cadmium, and phthalate limits
Guidance on enforcement of lead, cadmium, and phthalate limits for the Children's Safe Product Act
https://ecology.wa.gov/guidance-on-enforcement-of-lead-cadmium-and-phth
Rulemaking Adoption Notice (WAC 173-910) 08/23/16
This is a rulemaking adoption (CR-103) for WAC 173-910 Mecury-Containing Lights Product Stewardship Program.
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-910-08-24-16
Chapter 8 Personnel Training
WASTE TREATMENT AND IMMOBILIZATION PLANT CHAPTER 8 PERSONNEL TRAINING CHANGE CONTROL LOG
https://ecology.wa.gov/chapter-8
Waste Treatment and Immobilization Plant Analytical Laboratory Public Comment Period Focus Sheet
This Class 3 permit modification (8C.2017.4D) focuses on the operations of the Analytical Laboratory (Lab) and provides the operating details for the Analytical Lab under the Direct-Feed Low-Activity Waste configuration.
https://ecology.wa.gov/focus-sheet-3a9ad83c09b26cfd707a988692e9ab96
Response to Comments: Modification of RCRA WTP Lab Operations
Response to Comments: Modification of the Hanford Facility Resource Conservation and Recovery Act Permit for the Treatment, Storage, and Disposal of Dangerous Waste, Part III, Operating Unit Group 10 (WA7890008967) Waste Treatment and Immobilization Plant Analytical Laboratory Operations, 24590-LAB-PCN-ENV-16-002
https://ecology.wa.gov/response-to-comments
Pollution Prevention Planning Hazardous Substances List
Refer to this chemical list when doing your pollution prevention plan. Updated on May 19, 2017.
https://ecology.wa.gov/washington-state-pollution-prevention-planning-haz
Rulemaking Adoption Notice (WAC 173-337) 05/31/23
This is a rulemaking adoption (CR-103) for WAC 173-337 Safer Products Restrictions and Reporting
https://ecology.wa.gov/rulemaking-adoption-notice-wac-173-337
PCB pathways in building materials
Text version of PCB pathways in building materials.
https://ecology.wa.gov/interactive-doc-pcb-pathways
Rulemaking Announcement (WAC 173-337) 12/08/23
This is a rulemaking announcement (CR-101) for WAC 173-337 Safer Products Restrictions and Reporting.
https://ecology.wa.gov/rulemaking-announcement-wac-173-337-12-06-23
PCB petition to EPA
Letter from Ecology to the EPA petitioning to reduce allowable PCBs in consumer products.
https://ecology.wa.gov/pcb-petition-to-epa
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
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