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.
Responsiveness summary for WQ surface water standard triennial review process
We created a responsiveness summary based on comments received, including our response to each comment
https://ecology.wa.gov/triennialrevresponsetocommtable082011-pdf
Tacoma Smelter Plume - Soil Replacement Sequence
Text document describing the sequence of soil replacement work.
https://ecology.wa.gov/tsp-soil-replacement-accessible
Underline strikeout version of policy
This version of the policy shows all of the changes to the previous language with underline/strikeout markings
https://ecology.wa.gov/underline-strikeout-version-of-policy
Type A Rail Implementation Guidance
Guidance document for Type A Rail Implementation
https://ecology.wa.gov/type-a-rail-implementation-guidance
Type B Rail Implementation Guidance
Guidance document for Type B Rail Implementation
https://ecology.wa.gov/type-b-rail-implementation-guidance
TypeARailPlanReview5YearChecklist
Checklist for 5 year Type A Rail Plan Review
https://ecology.wa.gov/typearailplanreview5yearchecklist
Type B Railroads Basic Tabletop Drill Guidance
Type B Railroads – Basic Tabletop Drill Guidance
https://ecology.wa.gov/type-b-railroads-basic-tabletop-drill-guidance
Tug escort analysis - Interagency Agreement
Interagency Agreement for tug escort analysis
https://ecology.wa.gov/tug-escort-analysis-interagency-agreement
Response to public comments on draft scope of work
Response to public comments on draft scope of work for tug escort analysis
https://ecology.wa.gov/tug-escort-analysis-response-to-public-comments
Tug escort analysis - Scope of work
Scope of work for tug escort analysis
https://ecology.wa.gov/tug-escort-analysis-scope-of-works
TV Recycling
Graphic with TVs and E-Cycle Washington information.
https://ecology.wa.gov/tv-recycling
Two Rivers Terminal comments (WAC 173-460) 12/18
These are Two Rivers Terminal's 12/18 comments to remove ammonium sulfate from the toxic air pollutant list, Chapter 173-460 WAC.
https://ecology.wa.gov/two-rivers-terminal-comments
Treatment Systems for Contaminated Construction Runoff (TSCCR)
This spreadsheet shows treatment systems that may be effective in treating specific contaminants. Users should evaluate the effectiveness of any treatment system they plan to implement and confirm that the chosen treatment system does not cause or contribute to a violation of the water quality standards.
https://ecology.wa.gov/treatmentsystems
Tukwila Approved SMP Ocotober 2011
Shoreline Master Program that has been adopted by the local jurisdiction and Approved by Ecology
https://ecology.wa.gov/tukwila-approved-smp-ocotober-2011
Tumwater Approved SMP April 2014
Shoreline Master Program that has been adopted by the local jurisdiction and Approved by Ecology
https://ecology.wa.gov/tumwater-approved-smp-april-2014
Twisp Approved SMP August 2012
Shoreline Master Program that has been adopted by the local jurisdiction and Approved by Ecology
https://ecology.wa.gov/twisp-approved-smp-august-2012
Tug Escort Rulemaking public meeting presentation
Tug Escort Rulemaking presentation for public meeting
https://ecology.wa.gov/tug-escort-rulemaking-public-meeting-presentation
Transporters-of-Recyclable-Materials
Washington Department of Ecology's list of transporters of recyclable materials.
https://ecology.wa.gov/transporters-of-recyclable-materials
Underwater Noise Slides
Slides for the Underwater Noise Deep Dive Meeting
https://ecology.wa.gov/underwater-noise-slides
4470 results
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