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.

See more about this collection...

Tire carrier businesses list

This is a regularly updated list of tire carrier businesses in Washington.

https://ecology.wa.gov/tire-carrier-businesses-list

Olympic View Landfill - Draft Periodic Review

This is a draft of a five-year periodic review of site conditions at Olympic View Sanitary Landfill in Port Orchard, Washington.

https://ecology.wa.gov/olympic-view-landfill-draft-periodic-review

Fire Mountain Farms SEPA checklist

State Environmental Policy Act checklist for Fire Mountain Farms' proposed biosolids land application site

https://ecology.wa.gov/sepa-checklist

Fire Mountain Farms site map

Site map for Fire Mountain Farms' proposed biosolids land application site

https://ecology.wa.gov/site-map-d4e8515a558ce8e1addb3ddeb6f0f563

Fire Mountain Farms site specific land application plan

Site specific land application plan for Fire Mountain Farms' proposed biosolids land application site

https://ecology.wa.gov/site-specific-land-application-plan

Fire Mountain Farms topographical map

Topographical map for Fire Mountain Farms' proposed biosolids land application site

https://ecology.wa.gov/topographical-map

Fire Mountain Farms vicinity map

Vicinity map for Fire Mountain Farms' proposed biosolids land application site

https://ecology.wa.gov/vicinity-map

Solid waste facilities list

This is Ecology's list of active solid waste facilities in Washington.

https://ecology.wa.gov/solid-waste-facilities-list

WasteCharacterization2020-2021

Washington's 2020-2021 waste characterization study samples landfills from across the state to estimate overall solid waste composition.

https://ecology.wa.gov/washington-waste-characterization-2020-2021

Northwest region Washington 2018 litter statistics

This document covers 2018 litter recovery statistics for Washington's northwest region.

https://ecology.wa.gov/northwest-region-washington-2018-litter-statistics

Southwest region Washington litter statistics 2018

This document lists 2018 litter recovery statistics for Washington's southwest region.

https://ecology.wa.gov/southwest-region-washington-litter-statistics-2018

15 Year Anniversary Infographic

This document celebrates 15 years of the E-Cycle WA program, and includes program data and information.

https://ecology.wa.gov/10-year-anniversary-infographic

Tips for secure loads - Text only format

Text only format of tips for securing cargo loads

https://ecology.wa.gov/tips-for-secure-loads-text-only-format

Teacher Reference SWRO

This is a teacher reference form for the Ecology Youth Corps summer 2020 season. You must include this document with your application to be considered for a crew position.

https://ecology.wa.gov/teacher-reference-swro

Rule Advisory Committee Meeting - April 14, 2022 Notes Summary

Rule Advisory Committee Meeting Notes Summary

https://ecology.wa.gov/ruleadvisorycommitteemtgnotes4-14-22

Tipping Fees Map 2023

This map show landfill tipping fees by county in Washington.

https://ecology.wa.gov/tipping-fees-map-2023

Tipping Fees Data 2023

This spreadsheet lists tipping fees in Washington by county.

https://ecology.wa.gov/tipping-fees-data-2023

Rulemaking Announcement ( 173-905 WAC) 3/19/24

Rulemaking Announcement CR 101

https://ecology.wa.gov/rulemaking-announcement-173-905-wac-;-3-19-24

Rule Advisory Committee Meeting Agenda

This is the agenda for the May 6, 2024 meeting of the Battery Stewardship Rulemaking Advisory Committee.

https://ecology.wa.gov/rule-advisory-committee-meeting-agenda

Solar panel bill request 9-17-24

This is a bill request concerning the photovoltaic module stewardship and takeback program. In it Ecology proposes to delay implementation of the solar panel takeback program.

https://ecology.wa.gov/solar-panel-bill-request-9-17-24