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.
ECY to Pend Oreille County regarding SEPA lead request
ECY response to Pend Oreille County Commissioners' letter requesting Ecology take the lead agency role in Environmental review of PacWest Silicon’s proposal
https://ecology.wa.gov/ecy-to-po-commissoners_lead-ag_july2018
Guidance for Marine Net Pen Aquaculture in Washington State
Proposed guidance for net pen aquaculture management and operations in Puget Sound and the Strait of Juan de Fuca.
https://ecology.wa.gov/guidance-for-marine-net-pen-aquaculture-in-washing
2011 MTCATPH Excel Spreadsheet's Troubleshooting Guide
Troubleshooting guide with operating tips for common installation problems associated with compatibility with MS EXCEL 2000, 2003, 2007, 2010 versions.
https://ecology.wa.gov/2011mtcatphtroubleshooting
Freshwater Algae Control Grant Program - SFY 2019 Final Offer List
For the Fresh Water Algae Control grants funding program, this is the State Fiscal Year 2019 Final Offer List showing which projects will be offered funding and how much is being offered to them.
https://ecology.wa.gov/fwac-prgm-sfy-2019-final-offer-list
Carnival Splendor inspection report
This document is the wastewater inspection report for Carnival Splendor Cruise Line.
https://ecology.wa.gov/carnival-splendor-inspection-report
Aquatic Invasive Plants grants funding program - FY2019 Final Offer List
For the Aquatic Invasive Plants grants funding program, this is the State Fiscal Year 2019 Final Offer List showing which projects will be offered funding and how much is being offered to them.
https://ecology.wa.gov/fy2019-aip-final-offer-list
Clean Watershed Needs Survey - Calendar year 2018 Overview
This document provides an overview of the calendar year 2018 cycle of the Clean Watershed Needs Survey process for reviewing state watersheds to make a list of their water issues and needs
https://ecology.wa.gov/cwns-cy2018-overview
Columbia River Temperature TMDL Comment
Ecology's comment letter on EPA's Temperature TMDL for the Columbia and Snake Rivers
https://ecology.wa.gov/columbia-river-tmdl-comment
Car maintance fact sheet WQ
Washington Waters Ours to Protect car maintenance fact sheet WQ
https://ecology.wa.gov/car-maintenance-fact-sheet-wq
Car washing fact sheet English
Washington Waters Ours to Protect car washing fact sheet English
https://ecology.wa.gov/car-washing-fact-sheet-english
Car washing fact sheet Spanish
Washington Waters Ours to Protect car washing fact sheet Spanish
https://ecology.wa.gov/car-washing-fact-sheet-spanish
Car maintenance poster WQ
Washington Waters Ours to Protect car maintenance poster
https://ecology.wa.gov/car-maintenance-poster-wq
Dog poop fact sheet Spanish
Washington Waters Ourt to Protect dog poop fact sheet Spanish
https://ecology.wa.gov/dog-poop-fact-sheet-spanish
Car washing poster Spanish
Washington Waters Ours to Protect car washing poster Spanish
https://ecology.wa.gov/car-washing-poster-spanish
Dog poop poster E WQ
Washington Waters Ours to Protect dog poop poster E WA
https://ecology.wa.gov/dog-poop-poster-e-wa
2018-2023 Municipal permit recommendations from Stormwater Work Group
Overall recommendations for RSMP funding and administration through the permits, Recommendations for the S8.B Status and Trends Monitoring, Recommendations for S8.C Effectiveness Studies, and Recommendations for S8.D Source Identification and Diagnostic Monitoring.
https://ecology.wa.gov/finals8recommendations1june2016
Aladdin Plating
We monitor groundwater for legacy plating chemicals at the former Aladdin Plating Co. site in Tacoma.
https://ecology.wa.gov/research-data/monitoring-assessment/groundwater-quality-assessment/active-studies-index/aladdin-plating
Columbia River reports & documents
Our Office of Columbia River scientific reports and documents support water supply projects for Eastern Washington
https://ecology.wa.gov/research-data/scientific-reports/columbia-river-reports
Effectiveness monitoring for water quality
Our scientists study the effectiveness of projects to protect and improve water quality.
https://ecology.wa.gov/research-data/monitoring-assessment/water-quality-improvement-effectiveness-monitoring
Habitat monitoring methods
We monitor the health of streams by measuring the health of habitat, water, and sediment chemistry.
https://ecology.wa.gov/research-data/monitoring-assessment/river-stream-monitoring/habitat-monitoring/habitat-monitoring-methods
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