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.
RCW Chapter 90.50A
Water pollution control facilities federal capitalization grants
https://ecology.wa.gov/rcw-chapter-90-50a
WAC Chapter 173-303
Dangerous waste regulations
https://ecology.wa.gov/wac-chapter-173-303-3d9899805a920fa45a9286be0d1f7ab7
Source Control Inspection Program Guidance Manual
Manual from the Washington Stormwater Center provides resources, templates, and strategies developed based on research, input, and experiences of jurisdictions that have developed similar programs.
https://ecology.wa.gov/source-control-inspection-program-guidance-manual
Saltwater studies - Marine water column data prior to 1989
Zipped Excel spreadsheet explaining the methods, quality, and data before 1989.
https://ecology.wa.gov/historicalwatercolumndata-zip
Manning's n calculator
An Excel/VBA program to calculate Manning's n (or depth) from cross-section data for trapezoidal or rectangular channels based on equation 14.32 in Chapra's Surface water quality modeling textbook.
https://ecology.wa.gov/manning-s-n-calculator-zip
River & stream thermal infrared image viewer
We conducted temperature surveys of 39 rivers in 2003 - 2004 from small planes equipped with cameras and infrared sensors. The resulting images show warm and cold spots in the river systems. Choose a river by basin in the drop-down menu on the left to scroll through the images in the map on the right.
https://ecology.wa.gov/river-stream-thermal-infrared-image-viewer
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
East Fork Lewis River Partnership
Addressing water quality impairments in the East Fork Lewis River watershed through collaborative work with government entities, non-profits and private industry.
https://ecology.wa.gov/east-fork-lewis-river-partnership
Form: Notice of Termination for Construction Stormwater
This form is needed to submit a Termination for an active Construction Stormwater General Permit.
https://ecology.wa.gov/notice-of-termination-for-construction-stormwater
Form: Notice of Termination for Industrial Stormwater
This form is needed to submit a Termination for an active Industrial Stormwater Permit coverage.
https://ecology.wa.gov/notice-of-termination-for-industrial-stormwater
Forms: Sand and Gravel permit
List of forms related to permits for sand and gravel operations.
https://ecology.wa.gov/forms-sand-and-gravel-permit
Map look-up tool:Water Quality Atlas - map look-up tool
Use this map to find water quality data, including standards and outfalls.
https://ecology.wa.gov/water-quality-atlas-map-look-up-tool
Online tool: Aquatic Plant and Algae Management (login required)
This database is for permit coverages to control aquatic plants, algae, or phosphorous using chemicals that are put directly into surface water like lakes or streams.
https://ecology.wa.gov/aquatic-plant-and-algae-management
Online tool: Certified Erosion & Sediment Control Lead (CESCL)
Look up information about individuals who have completed CESCL training, including expiration dates.
https://ecology.wa.gov/certified-erosion-sediment-control-lead-cescl
Online tool: Freshwater Information Network
We monitor water quality at nearly 100 river and stream stations throughout the state to understand the health of waterways.
https://ecology.wa.gov/water-quality-monitoring-statewide-network
Online tool: Water quality permit database (PARIS) – Enforcements
Search water quality permits for enforcement actions.
https://ecology.wa.gov/paris-enforcements
Online tool: Water Quality Assessment (303(d)/305(b) list)
Look up water quality assessments by listing details, status, location, TMDL project or EIM identifier.
https://ecology.wa.gov/water-quality-assessment-303-d-305-b-list
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