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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Air Quality Index (AQI)
The Air Quality Index (AQI) tells you when air quality is healthy or unhealthy.
https://ecology.wa.gov/research-data/monitoring-assessment/air-quality-index
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
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
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
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
GIS standards
Find standards for Ecology's GIS data.
https://ecology.wa.gov/research-data/data-resources/geographic-information-systems-gis/standards
Streamflow monitoring contacts
Contact the stream hydrologist assigned to your watershed.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/flow-monitoring/streamflow-monitoring-contacts
Water quality monitoring methods for rivers & streams
Learn how we measure water quality in rivers and streams, including methods and parameters.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/water-quality-monitoring/river-stream-monitoring-methods
Sumas-Blaine surficial aquifer long-term ambient groundwater monitoring
We sample 25 wells in the Sumas-Blaine aquifer annually for nitrate, chloride, and bromide.
https://ecology.wa.gov/research-data/monitoring-assessment/groundwater-quality-assessment/active-studies-index/sumas-blaine
Focus on: Washington’s climate policies and fuel prices
On Jan. 1, 2023, two new Washington laws designed to reduce greenhouse gas emissions took effect: the Clean Fuel Standard (CFS) and the Climate Commitment Act (CCA).
https://ecology.wa.gov/focus-on-washington-s-climate-policies-and-fuel-pr
Goldendale Environmental Impact Statement (EIS) summary
Ecology released the final Environmental Impact Statement (EIS) for the Goldendale Energy Storage Project. The EIS examines significant adverse environmental impacts if the project is built. The document also identifies if those impacts may be reduced or eliminated through mitigation measures.
https://ecology.wa.gov/goldendale-eis
Story Maps: Sediment Quality in Puget Sound
This series of colorful, interactive story maps describes the work of our Marine Sediment Monitoring Team. These scientists conduct long-term monitoring to assess and determine change over time in the condition of Puget Sound sediments and the animals that live in them.
https://ecology.wa.gov/sediment-story-map
Accessibility & the Americans with Disabilities Act ADA
We are committed to providing information and services that are accessible to people with disabilities. We provide accommodations for the public, Ecology employees, and job applicants.
https://ecology.wa.gov/ada-accessibility-the-americans-with-disabilities
Cleanup project: Clean Earth Burlington
Clean Earth/Burlington, located within the Port of Camas in Washougal, WA, is currently undergoing a formal dangerous waste cleanup process at their site. The company is publicly known as Clean Earth, legally named Burlington Environmental, and is a subsidiary of PSC Environmental Services.
https://ecology.wa.gov/cleanup-project-clean-earth-burlington
Cleanup site: Olalla Landfill
Kitsap County Public Works Solid Waste Division, Kitsap Public Health District, and Ecology are working together to complete the first Five-Year Periodic Review for Olalla Landfill.
https://ecology.wa.gov/olalla-landfill
Publication index: Wetlands information
List of links to publications related to wetlands.
https://ecology.wa.gov/wetlands-publications
Burlington Environmental-Georgetown, Seattle cleanup site
Burlington Environmental-Georgetown in Seattle consists of two sites, one to the east of Fourth Avenue South (known as “East of 4th”), and one to the west (known as “West of 4th”)
https://ecology.wa.gov/cleanup-site-burlington-environmental-georgetown
Section 401 water quality & CZM federal consistency decisions
See our recent decisions on Section 401 water quality and CZM federal consistency.
https://ecology.wa.gov/401-and-czm-decisions
Data model - CO2SYS Version 24
A calculator for the CO2 system in seawater written in Excel/VBA. This Excel/VBA version included in the comparison of ten packages by Orr et al. (2015)
https://ecology.wa.gov/co2sys-version-24-zip
Ecology Water Quality Funded Activity Projects Zip File of ArcReader Map Layer for 12 Digit HUC Lookup
Description for the Ecology Water Quality Funded Activity Projects Zip File of ArcReader Map Layer for 12 Digit HUC Lookup
https://ecology.wa.gov/arcreader-map-layer-for-12-digit-hucs-zipfile
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