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.
Centroid calculator
An Excel/VBA program to calculate the centroid of a time-concentration series or any x-y series of data.
https://ecology.wa.gov/xlsm-centroid-calculator
BEACH Annual Report Summary 2004 - 2018
Beaches passing swimming standard from 2004 - 2018
https://ecology.wa.gov/table-beach-annual-report-summary
Watershed Health sentinel (reference) sites 2009-2018
Data tables for the map here: https://waecy.maps.arcgis.com/apps/webappviewer/index.html?id=5f7e6c8a758a4ac2af2098f74da80ea4
https://ecology.wa.gov/table-reference-sites-for-watershed-health
Watershed Heatlh Monitoring randomly chosen sites from 2009 - 2017
Data tables for map here: https://waecy.maps.arcgis.com/apps/webappviewer/index.html?id=7b90d34357484848a46076ee220fbffc
https://ecology.wa.gov/table-watershed-health-random-sites
Water Quality Index spreadsheet, version 6
The Water Quality Index, or WQI, summarizes and presents water-quality data in an easily understood format. This spreadsheet is a downloadable tool for calculating a WQI score based on your own data.
https://ecology.wa.gov/water-quality-index-version-6
Toxics monitoring in consumer products
We design studies to test for toxic chemicals in consumer products.
https://ecology.wa.gov/research-data/monitoring-assessment/consumer-products-testing
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
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
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
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
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
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
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
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
Kitsap County annual BEACH report
Learn about bacteria results at Kitsap County beaches sampled in the summer of 2023.
https://ecology.wa.gov/research-data/monitoring-assessment/beach-annual-report/kitsap-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
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
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