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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Governor's letter to the Chehalis Basin Board (non-dam alternative)

A letter from Governor Jay Inslee requesting the exploration of non-dam alternatives to the proposed Chehalis Basin River flood control dam

https://ecology.wa.gov/governor-s-non-dam-alternative-letter-chehalis-ba

Governor's letter to the Director (non-dam alternative)

A letter from Governor Jay Inslee requesting the exploration of non-dam alternatives to the proposed Chehalis Basin River flood control dam

https://ecology.wa.gov/governor-s-non-dam-alternative-letter-ecology-and

Cleanup Rule exploratory rulemaking process & timeline (as of January 2018)

A January 2018 notice of our exploratory process and timeline for updating Washington's Cleanup Rule.

https://ecology.wa.gov/noticecleanupruleexprmjan2018

Slide desk for statewide scoping webinar on April 3, 2018

Slides for the Cleanup Rule's statewide scoping session on Tuesday, April 3, 2018.

https://ecology.wa.gov/scopingsessionslidedeck04-03-2018

PUREX Administrative Order

The Department of Ecology issued this Administrative Order (Order) requiring Department of Energy-Richland Operations Office and CH2M HILL Plateau Remediation Company to comply with WA codes and the Hanford RCRA permit.

https://ecology.wa.gov/20170510purexenforcement

Water Quality Combined Funding SFY 2021 Final Offer List (in Excel format)

For the State Fiscal Year 2021 funding cycle of the Water Quality Combined Funding Program, this is the Final Offer List information made available in an Excel format.

https://ecology.wa.gov/sfy-2021-final-offer-list-excel-version-wqc

Water Quality Combined Funding SFY 2022 Final Offer List (in Excel format)

For the State Fiscal Year 2022 funding cycle of the Water Quality Combined Funding Program, this is the Final Offer List information made available in an Excel format.

https://ecology.wa.gov/sfy-2022-final-offer-list-excel-version-wqc

Presentation slides (WAC 173-323) 8/7/17

August 7, 2017 Presentation slides for Chapter 173-323 rulemaking.

https://ecology.wa.gov/presentation-slides-wac-173-323

Ecology Water Quality Funded Aquatic Invasive Plants Grant Project Offer List for Fiscal Year 2020

List of applicants who were offered grants/loan through Ecology's Water Quality Funded Aquatic Invasive Plants Grant Project for Fiscal Year 2020

https://ecology.wa.gov/fy2020-aquatic-invasive-plant

Ecology Water Quality Funded Aquatic Invasive Plants Grant Project Offer List for Fiscal Year 2021

List of applicants who were offered grants/loan through Ecology's Water Quality Funded Aquatic Invasive Plants Grant Project for Fiscal Year 2021

https://ecology.wa.gov/fy2021-aquatic-invasive-plant-grants-offer-list

EIM — environmental monitoring data

EIM contains environmental monitoring data collected by our scientists and partners.

https://ecology.wa.gov/research-data/data-resources/environmental-information-management-database

Kitsap County BEACH report

Learn about beaches sampled for bacteria levels in Kitsap County in the summer of 2024.

https://ecology.wa.gov/research-data/monitoring-assessment/beach-annual-report/kitsap-county

Mason County BEACH report

Learn about beaches sampled for bacteria levels in Mason County in the summer of 2024.

https://ecology.wa.gov/research-data/monitoring-assessment/beach-annual-report/mason-county

Snohomish County BEACH report

Learn about beaches sampled for bacteria levels in Snohomish County in the summer of 2024.

https://ecology.wa.gov/research-data/monitoring-assessment/beach-annual-report/snohomish-county