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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Floodplains by Design 2023-2025 Grant Pre-Application

Pre-application form for Floodplains by Design project proposals for the 2023-2025 fiscal year.

https://ecology.wa.gov/floodplains-by-design-2023-2025-grant-pre-applicat

Composted materials by facility

This spreadsheet lists Washington's compost facilities and the types of materials they process.

https://ecology.wa.gov/composting-facilities-and-materials

Second SEIS Kalama SEPA notice

The SEPA notice that Ecology will conduct a second Supplemental Environmental Impact Statement.

https://ecology.wa.gov/2019-nov22-2ndseiskalama-sepa-notice

Regional haze reasonable progress goals - draft

Draft chapter Washington regional haze plan reasonable progress goals.

https://ecology.wa.gov/011121-draft-sip-regional-haze-reasonable-progress

Adopted emergency rule language (WAC 173-446) 6-8-23

This is the first emergency adopted rule language for WAC 173-446, Climate Commitment Act Program Rule.

https://ecology.wa.gov/adopted-emergency-rule-language-wac-173-446-6-8-23

Rulemaking Announcement (WAC 173-446) 6-8-23

This is a rulemaking announcement (CR-101) for WAC 173-446, Climate Commitment Act Program Rule.

https://ecology.wa.gov/rulemaking-announcement-wac-173-446-6-8-23

Notification letter Second SEIS

A letter notifying the applicants of Ecology's decision to conduct a second Supplemental Impact Statement for the proposed Kalama methanol facility.

https://ecology.wa.gov/2019-nov22-2ndseiskalamaletter

Cowlitz County's Nov. 4, 2019 response to Ecology's questions

Information provided to Ecology in response to the agency's questions on a Supplemental Environmental Impact Statement for the proposed Northwest Innovation Works Kalama methanol plant.

https://ecology.wa.gov/2019-october-cowlitzcountyresponsetoecyquestions

Rulemaking Emergency Adoption Notice (WAC 173-446) 6-8-23

This is the first emergency rulemaking adoption notice (CR-103E) for WAC 173-446, Climate Commitment Act Program Rule.

https://ecology.wa.gov/rulemaking-emergency-adoption-notice-wac-173-446-6

Columbia River Temperature TMDL Comment

Ecology's comment letter on EPA's Temperature TMDL for the Columbia and Snake Rivers

https://ecology.wa.gov/columbia-river-tmdl-comment

Vantage Data Center Health Impact Assessment (Second Tier Review) Recommendation, April 2022

This is the April 2022 Health Impact Assessment (Second Tier Review) Recommendation for Vantage Data Center.

https://ecology.wa.gov/202204vantagetier2rec

Cap and Invest Agency Request Legislation

A PowerPoint on Ecology's proposed agency request legislation for our Cap and Invest Program.

https://ecology.wa.gov/cap-and-invest-agency-request-legislation-ppt

Draft linkage bill

A bill request for facilitating linkage of Washington's carbon market with the California-Quebec marcket

https://ecology.wa.gov/draft-linkage-bill-z-0485-1

Online tool: Five-day smoke forecasts in Washington

This automated smoke-forecast tool provides a five-day prediction of the amount of smoke expected in 53 zones around the state, from wildfires and other sources.

https://ecology.wa.gov/smoke-forecasts

Vídeo: Como hacer su propio filtro de aire limpio

Aprenda a hacer su propio ventilador para filtrar aire. Esta combinación de ventilador-filtro de bajo costo.

https://ecology.wa.gov/spanish-video-box-fan-filter

Email List: VW Settlement grant program

https://ecology.wa.gov/vw-email-list-sign-up-govdelivery

Blog: Washington Smoke Information

Washington state blog site for sharing updates and forecasting on smoke from wildfires.

https://ecology.wa.gov/wa-smoke-blog

Online tool: Air Permit Search

Search the air quality permit library for Prevention of Significant Deterioration (PSD) and Air Operating Permits (AOP).

https://ecology.wa.gov/online-tool-air-permit-search

Email List: Landfill methane emissions reduction

https://ecology.wa.gov/email-list-landfill-methane-emissions-reduction

Watershed health sampling sites

Learn about the sites we sample.

https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/watershed-health/sampling-sites