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...

2018 South Skagit Bay Assessment Update

Working with Dept. of Health we've identified South Skagit Bay as a priority area to improve water quality. This is a summary of our work for 2018.

https://ecology.wa.gov/south-skagit-bay-assessment-update

Quality Control Chart for Laboratories

The control chart is downloadable spreadsheet tool with templates and instructions for both a standard-solution control test and one that uses duplicate solutions.

https://ecology.wa.gov/spreadsheet-control-chart

Southwest region Washington litter statistics 2018

This document lists 2018 litter recovery statistics for Washington's southwest region.

https://ecology.wa.gov/southwest-region-washington-litter-statistics-2018

Soos Creek SAP Appendix 1: 7-DADMAX thermal record graphs

7-DADMAX thermal record graphs for Soos Creek Watershed Temperature and DO TMDL Study and Analysis Plan, Appendix 1

https://ecology.wa.gov/soos-creek-sap-appendix-1-7-dadmax-thermal-record

Soos Creek SAP Appendix 2: Historical dissolved oxygen data

Historical dissolved oxygen data

https://ecology.wa.gov/soos-creek-sap-appendix-2-historical-dissolved-ox

Soos Creek SAP Appendix 3: Discharge, water temperature, air temperature graphs

Discharge, water temperature, air temperature graphs

https://ecology.wa.gov/soos-creek-sap-appendix-3-discharge-water-temper

Splash Boxx Functional Equivalency

Ecology finds Splash Boxx treatment system is functionally equivalent to a Bioretention Facility (rain garden) when using approved Bioretention Soil Media for stormwater management and must adhere to the guidelines for Bioretention areas found in Best Management Practice T7.30.

https://ecology.wa.gov/splash-boxx

Guidance for demonstrating compliance with water quality standards when using Splash Boxx using the Western Washington Hydrology Model.

PowerPoint report gives the procedure for demonstrating compliance with water quality standards when using Splash Boxx for stormwater management using the Western Washington Hydrology Model.

https://ecology.wa.gov/splashboxxguidence

Songa Hua press release - March 1, 2007, at 12:00pm

Press release for March 1, 2007, at 12:00pm

https://ecology.wa.gov/songa-hua-2

Spokane River Minimum Instream Flow Recommendations (WAC 173-557; 173-555) 01/27/15

Spokane River Minimum Instream Flow Recommendations - Rusty Post, Ecology Watershed Planning August 1, 2012 WAC 173-557; 173-555 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010.

https://ecology.wa.gov/spokane-river-minimum-instream-flow-recommendation

Spokane River Temperature Profile, Barker Road to Plantes Ferry Park (WAC 173-557; 173-555) 01/27/15

Spokane River Temperature Profile, Barker Road to Plantes Ferry Park, Guy Gregory and John Covert, Ecology Publication 06-11-005, September 2005 for WAC 173-557 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010.

https://ecology.wa.gov/spokane-river-temperature-profile-barker-road-to

South Bend Approved SMP May 2017