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...

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

Using MyEIM

MyEIM is an advanced tool for searching and analyzing EIM data and is best viewed on a large screen.

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

Contaminants in lake sediment cores

We age-date sediment cores from three lakes per year to assess contaminant deposition trends.

https://ecology.wa.gov/research-data/monitoring-assessment/toxics-monitoring/contaminants-in-sediment-cores

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

Railroad Creek monitoring

Our scientists are studying how mine remediation affects aquatic life uses along Railroad Creek.

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

River & stream data quality assurance

See river and monitoring quality assurance plans, documents, and methods.

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

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

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

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

Watershed health sampling schedules

See when our crews will be collecting data on the health of watersheds at sites across the state.

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

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

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

Watershed health monitoring

We monitor the regional health of rivers and streams in watersheds throughout the state.

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

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

Whatcom County annual BEACH report

We sampled four beaches in Whatcom County for bacteria in the summer of 2023.

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

Thurston County annual BEACH report

We sampled two beaches in Thurston County for bacteria in the summer of 2023.

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

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

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

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