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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Active groundwater studies

We conduct groundwater studies for long- and short-term projects. Learn about our active studies.

https://ecology.wa.gov/research-data/monitoring-assessment/groundwater-quality-assessment/active-studies-index

River and stream flow monitoring

We report the amount of water flowing through Washington’s rivers and streams using graphs and maps.

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

Find groundwater publications

Map and text-based methods for searching for groundwater-related reports for Washington.

https://ecology.wa.gov/research-data/monitoring-assessment/groundwater-quality-assessment/find-groundwater-publications

Data products & reports

See example data products, get access to data, and view reports and presentations.

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

State, County, and Watershed Maps for Washington

We have created various GIS maps for public download.

https://ecology.wa.gov/research-data/data-resources/geographic-information-systems-gis/maps

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

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

Island County annual BEACH report

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

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

GIS Applications

Find a list of GIS applications at Ecology.

https://ecology.wa.gov/research-data/data-resources/geographic-information-systems-gis/applications

Monitoring for lead in lakes & streams

We monitor temporal changes in the lead levels of rivers and streams in the state.

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

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

Lower Snohomish River Tributaries effectiveness monitoring

We're studying bacteria pollution in tributaries to the Lower Snohomish River.

https://ecology.wa.gov/research-data/monitoring-assessment/water-quality-improvement-effectiveness-monitoring/lower-snohomish-river-tributaries

Washington State Hydrography Dataset Program

Mapping surface waters in Washington.

https://ecology.wa.gov/research-data/data-resources/geographic-information-systems-gis/hydrography-program-washd

Rivers & streams temperature monitoring

We collect data on the temperature of rivers and streams across the state.

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

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

Mercury in fish tissue

We monitor mercury levels in freshwater fish throughout Washington.

https://ecology.wa.gov/research-data/monitoring-assessment/toxics-monitoring/mercury-in-fish-tissue

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

Newaukum River effectiveness monitoring

We're studying the Newaukum River to understand the effects of river restoration on the watershed.

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

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