Research & Data

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.
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2014 moderate risk waste report - 2014 Solid Waste Report
Moderate risk waste data from the 2014 solid waste report
Rulemaking Proposal (WAC 173-350) 1/23/18
This is a rulemaking proposal (CR-102) for WAC 173-350 Solid Waste Handling Standards
Rulemaking proposed language (WAC 173-350) 1/23/18
This is proposed rule language for WAC 173-350 Solid Waste Handling Standards.
Fertilizer Production Companies - look-up tool
Information about commercial fertilizers that are registered for distribution in the state of Washington.
Children's Safe Product Act Reported Data
Search the database of reports required from manufacturers of children's products about the presence of specific toxic chemicals of concern in their products. Products covered include toys, cosmetics, jewelry, and baby products.
Preliminary Draft Rule Text (PDF)
Read the text of the rule with proposed changes highlighted.
Materials composted in Washington 2016
A spreadsheet of facilities showing the types and quantities of materials composted in 2016.
Waste 2 Resources Advisory Committee Roster
Current membership roster for the Waste 2 Resources Advisory Committee
Moderate Risk Waste - 2013 Solid Waste Report
Moderate risk waste data from the 2013 solid waste report
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
DWRulemakingInformationalWebinar
Informational webinar for the draft dangerous waste rule changes
Scientific services
We offer scientific services to support environmental work and inquiry for projects funded through public dollars. We provide accurate, credible, and defensible analyses using the latest accredited methods.
Rulemaking at Ecology
Ecology has delegated federal and state authority to implement and enforce various environmental laws and rules. We accomplish this through our open and public rulemaking process.
Online tools & databases
This is the gateway to Ecology's many web-accessible databases and tools.
Public input and events listing
Information on Ecology's public hearings, meetings, workshops, open houses, and open comment periods.
Ecology's blog
Our blog posts tell how Ecology works to protect Washington’s environment and quality of life. We strive to promote the wise management of our air, land and water for the benefit of current and future generations.
Slide desk for statewide scoping webinar on April 3, 2018
Slides for the Cleanup Rule's statewide scoping session on Tuesday, April 3, 2018.
Preliminary Draft Rule Text (WAC 173-303) 02/17/16
This is the Preliminary Draft Rule Text for Chapter 173-303 WAC, Dangerous Waster Regulations.
Draft Amendments Summary (WAC 173-303) 02/17/16
This is the Draft Amendments Summary for Chapter 173-303 WAC, Dangerous Waste Regulations.
Rulemaking Announcement (WAC 173-303) 02/17/16
This is the Rulemaking Announcement (CR-101) for Chapter 173-303 WAC, Dangerous Waste Regulations.
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