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...

SCUM II's Appendix K: Risk-based Cleanup Levels Calculation Spreadsheets

Appendix K of the Sediment Cleanup User's Manual (SCUM II) contains spreadsheets to use as a resource for calculating risk-based concentrations for sediment and tissue. These are used in conjunction with the recommended exposure parameters in SCUM II's Chapter 9.

https://ecology.wa.gov/appendixk

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

Draft-EIS-Process

Steps in the state environmental review process for a draft EIS

https://ecology.wa.gov/draft-eis-process

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

Goldendale Energy Draft EIS June 28, 2022 hearing transcript

Transcript of the second hearing on the Goldendale Energy Storage Project draft EIS

https://ecology.wa.gov/goldendale-energy-draft-eis-hearing-2-transcript

Goldendale Energy Draft EIS June 30, 2022 hearing transcript

Transcript of the third hearing on the Goldendale Energy Storage Project draft EIS

https://ecology.wa.gov/goldendale-energy-draft-eis-hearing-3-transcript

Skagit County annual BEACH report

We sampled Bay View State Park beach in Skagit County in the summer of 2023.

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

Jellyfish in Puget Sound

Jellyfish numbers may be increasing in Puget Sound. You can help us monitor them.

https://ecology.wa.gov/research-data/monitoring-assessment/puget-sound-and-marine-monitoring/jellyfish

Marine algae & plankton

Marine algae blooms are overgrowths of plankton. They can look like a spill in the water.

https://ecology.wa.gov/research-data/monitoring-assessment/puget-sound-and-marine-monitoring/marine-algae-plankton

Salish Sea Model

We use a computer tool that simulates hydrodynamic and water quality processes in the Salish Sea.

https://ecology.wa.gov/research-data/data-resources/models-spreadsheets/modeling-the-environment/salish-sea-modeling

Monitoring for toxic chemicals

We conduct long-term monitoring to understand levels and trends of toxics in the environment.

https://ecology.wa.gov/research-data/monitoring-assessment/toxics-monitoring

Lake water quality monitoring & protection

Working with partners, we compile data on algae, invasive plants, and some toxic chemicals in lakes.

https://ecology.wa.gov/research-data/monitoring-assessment/lake-water-quality

River and stream monitoring

Our freshwater data helps us to assure clean and abundant water to support human and aquatic life.

https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring

Clallam County annual BEACH report

Learn about bacteria results at Clallam County beaches sampled in the summer of 2023.

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

Grays Harbor County BEACH report

Learn about beaches sampled for bacteria levels in Grays Harbor County in the summer of 2023.

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

Henderson Inlet effectiveness monitoring

Our monitoring work in Henderson Inlet shows how local projects reduced fecal coliform in water.

https://ecology.wa.gov/research-data/monitoring-assessment/water-quality-improvement-effectiveness-monitoring/henderson-inlet

Jefferson County annual BEACH report

Learn about the four beaches sampled for bacteria in Jefferson County in the summer of 2023.

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

King County annual BEACH report

We sampled 10 beaches in King County for bacteria in the summer of 2023.

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

Pierce County annual BEACH report

We sampled 7 beaches in Pierce County for bacteria in the summer of 2023.

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