Research & Data

Use this portal to filter and search for all of our scientific information.

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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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Research & Data

Use this portal to filter and search for all of our scientific information.

Research & Data icon

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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Wastewater testing
Whole effluent toxicity testing ensures wastewater does not harm aquatic life.
https://ecology.wa.gov/research-data/monitoring-assessment/wastewater-testing
Modeling the environment
Computer models mathematically represent part of the environment to predict potential changes.
https://ecology.wa.gov/research-data/data-resources/models-spreadsheets/modeling-the-environment
Habitat monitoring
We collect data on the health of environmental systems that support plant and animal life.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring
Freshwater fish contaminant monitoring
We analyze freshwater fish for various toxic chemicals.
https://ecology.wa.gov/research-data/monitoring-assessment/toxics-monitoring/freshwater-fish-contaminant-monitoring
Marine water & sediment monitoring
We conduct water and sediment long-term monitoring to identify ecosystem changes.
https://ecology.wa.gov/research-data/monitoring-assessment/puget-sound-and-marine-monitoring
Models and tools for water quality improvement
We use models to predict water quality changes to help find strategies to address pollution.
https://ecology.wa.gov/research-data/data-resources/models-spreadsheets/modeling-the-environment/models-tools-for-tmdls
Models & spreadsheets
Computer models predict changes and spreadsheets calculate. We offer these tools to the public.
https://ecology.wa.gov/research-data/data-resources/models-spreadsheets
Eyes Over Puget Sound
We provide documentation of Puget Sound waterways using community submissions and aerial photography.
https://ecology.wa.gov/research-data/monitoring-assessment/puget-sound-and-marine-monitoring/eyes-over-puget-sound
Stream biological monitoring
We evaluate the health of rivers and streams by studying multiple aquatic communities.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/stream-biological-monitoring
River & stream water quality index
The Freshwater Quality Index can help you learn about river and stream health.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/water-quality-monitoring/river-stream-water-quality-index
Forest practices effectiveness monitoring
We evaluate whether forest practices rules protect fish, wildlife, and water quality.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/forest-practices-effectiveness-monitoring
GIS Data
Ecology's authoritative GIS data layers are available for download.
https://ecology.wa.gov/research-data/data-resources/geographic-information-systems-gis/data
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
Long-term marine water & sediment data
We gather high quality data to help accurately reflect changes in marine environments over time.
https://ecology.wa.gov/research-data/monitoring-assessment/puget-sound-and-marine-monitoring/water-column-data
Monitoring Puget Sound from ferries
We installed sensors on passenger ferries as a cost-effective way of collecting water quality data.
https://ecology.wa.gov/research-data/monitoring-assessment/puget-sound-and-marine-monitoring/monitoring-puget-sound-from-ferries
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
BEACH annual report
See our annual county-by-county report on bacterial levels at saltwater swimming beaches for 2023.
https://ecology.wa.gov/research-data/monitoring-assessment/beach-annual-report
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
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