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.

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LightRecycle Producers List 2023

This document lists producers of mercury lights in Washington state.

https://ecology.wa.gov/lightrecycle-producers-list-2020

Disposal by facility 2016

This is a spreadsheet of disposal amounts in Washington in 2016, grouped by facility.

https://ecology.wa.gov/disposal-by-facility-2016

Materials, collection type, sector 2017

This is a spreadsheet with 2017 data on Washington's recovered materials, their collection type, and their sector.

https://ecology.wa.gov/materials-collection-type-and-sector-data

E-Cycle WA: Free Recycling

Image showing a computer and monitor with information on the E-Cycle program.

https://ecology.wa.gov/e-cycle-wa-free-recycling

NRWO Youth Application

An application for a crew member position for the Ecology Youth Corps' 2022 summer youth crews.

https://ecology.wa.gov/nrwo-youth-application

E-Cycle Washington: Free Computer Recycling

E-Cycle graphic showing a broken computer, promoting people to recycle instead of throwing away the item.

https://ecology.wa.gov/free-computer-recycling

Draft rule language (WAC 173-408) 6-8-23

This is the June 8, 2023 draft rule language for Chapter 173-408 WAC, Landfill Methane Emissions.

https://ecology.wa.gov/draft-rule-language-wac-173-408-6-8-23

E-Cycle Washington: Free TV Recycling

E-Cycle graphic showing a TV, promoting people to recycle instead of throwing away the item.

https://ecology.wa.gov/free-tv-recycling

Big Hanaford treatment variance

Hazardous waste treatment variance at Fire Mountain Farm's Big Hanaford site

https://ecology.wa.gov/emerald-kalama-treatment-variance-big-hanaford

Burnt Ridge treatment variance

Hazardous waste treatment variance at Fire Mountain Farm's Burnt Ridge site

https://ecology.wa.gov/emerald-kalama-treatment-variance-burnt-ridge

Draft rule language (WAC 173-408) 5-3-23

This is the May 3, 2023 draft rule language for Chapter 173-408 WAC, Landfill Methane Emissions.

https://ecology.wa.gov/draft-rule-language-wac-173-408-5-3-23

Draft rule language (WAC 173-408) 4-5-23

This is the April 5, 2023 draft rule language for Chapter 173-408 WAC, Landfill Methane Emissions.

https://ecology.wa.gov/draft-rule-language-wac-173-408-4-5-23

Newaukum Prairie treatment variance

Hazardous waste treatment variance at Fire Mountain Farm's Newaukum Prairie site

https://ecology.wa.gov/emerald-kalama-treatment-variance-newaukum-prairie

Presentation (WAC 173-408) 5-4-23

This is a presentation for the May 4, 2023 stakeholder meeting for Chapter 173-408 WAC, Landfill Methane Emissions.

https://ecology.wa.gov/presentation-wac-173-408-5-4-23

Presentation (WAC 173-408) 3-30-23

This is a presentation for the March 30, 2023 stakeholder meeting for Chapter 173-408 WAC, Landfill Methane Emissions.

https://ecology.wa.gov/presentation-wac-173-408-3-30-23

PCR Rulemaking Example Workload Analysis

An set of tables showing an example workload analysis, for Ecology's Rulemaking on Post Consumer Resin regulations.

https://ecology.wa.gov/pcr-rulemaking-example-workload-analysis

Retail authorization letter template

This is a template authorization letter that organizations can use for outreach to retailers about participating in Washington's Secure Loads campaign to cut litter.

https://ecology.wa.gov/retail-authorization-letter-template

Retail participation outreach template

This is a template one-pager that can be used for outreach to businesses about participating in Washington's Secure Loads campaign to cut litter.

https://ecology.wa.gov/retail-outreach-template

Presentation (WAC 173-408) 6-21-23

This is a presentation for the June 21, 2023 stakeholder meeting for Chapter 173-408 WAC, Landfill Methane Emissions.

https://ecology.wa.gov/presentation-(wac-173-408)-6-21-23

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