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.
Your Y-Valve and how it works
This is a graphic explaining a Y-Valve and how it works
https://ecology.wa.gov/justine-asohmbom
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
Vessel Sewage System Maintenance Tips
This is an infographics that shows tips on how to properly maintain your boat sewage system
https://ecology.wa.gov/vessel-sewage-system-maintenance-tips
Wastewater Facility Planning Design Projects Outcomes Summary form
Outcomes Summary form for Water Quality funded Wastewater Facility Planning and Design Projects
https://ecology.wa.gov/wastewater-facility-planning-design-projects-outco
Wastewater Facility Construction Projects Outcomes Summary form
Outcomes Summary form for Water Quality funded Wastewater Facility Construction Projects
https://ecology.wa.gov/water-quality-funded-wastewater-facility-construct
Withdrawal Notice (WAC 173-219) Dec. 23, 2015
Withdrawal Notice for Proposal Notice Continuance filed on Aug. 17, 2015 and Proposal Notice filed on June 22, 2015
https://ecology.wa.gov/withdrawal-notice-wac-173-219-12-23-15
Water Quality Program Funding Recipient Training Announcement
Water Quality Program Funding Recipient Training Announcement - Calendar Year 2020
https://ecology.wa.gov/wqc-recipient-training-announcement
Water Quality Program Funding Recipient Training Announcement - Moses Lake
Water Quality Program Funding Recipient Training Announcement - Moses Lake location 2019.
https://ecology.wa.gov/wqc-recipient-training-info-moses-lake-2019
Yard care fact sheet E WA
Washington Waters Ours to Protect yard care fact sheet E WA
https://ecology.wa.gov/yard-care-fact-sheet-e-wa
Yard care poster E WA
Washington Waters Ours to Protect yard care poster E WA
https://ecology.wa.gov/yard-care-poster-e-wa
Northeast West Plains PFAS in drinking water sampling results map
The EPA created this map to summarize where samples were taken without showing private well locations.
https://ecology.wa.gov/west-plains-pfas-sampling-results-map
River & stream water quality monitoring
We monitor water quality at nearly 100 river and stream stations throughout the state.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/water-quality-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
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
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
Puyallup River tributaries effectiveness monitoring
We’re studying bacteria pollution in tributaries to the Puyallup River.
https://ecology.wa.gov/research-data/monitoring-assessment/water-quality-improvement-effectiveness-monitoring/puyallup-river-tributaries
River & stream flow monitoring methods
We measure water's width, depth, and speed in rivers and streams to compute streamflow.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/flow-monitoring/river-stream-flow-monitoring-methods
River & stream water quality contacts
Find a stream scientist.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/water-quality-monitoring/river-stream-water-quality-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
Using river & stream water quality data
Learn how to find and understand water quality data from rivers and streams across the state.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/water-quality-monitoring/using-river-stream-water-quality-data
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