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.
TDG Draft EIS and Short-term Modification Language February 2019 Hearing Presentations
This is a PDF of the PowerPoint presentations provided at the February 2019 hearings on the draft EIS and short-term modification language for total dissolved gas criteria in WAC 173-201A.
https://ecology.wa.gov/tdg-draft-eis-and-short-term-modification-language
TDG short term modification administrative order
Signed short term modification administrative order for total dissolved gas criteria
https://ecology.wa.gov/tdg-short-term-modification-administrative-order
Swift Creek Action Plan Engineered Controls Diagram
This Swift Creek Action Plan diagram appears in the Consent Decree (legal agreement) between Ecology and Whatcom County.
https://ecology.wa.gov/text-description-of-swift-creek-action-plan-engine
Teacher Reference SWRO
This is a teacher reference form for the Ecology Youth Corps summer 2020 season. You must include this document with your application to be considered for a crew position.
https://ecology.wa.gov/teacher-reference-swro
Technical memo about toxicity equivalence (TEQ) (WAC 173-460) 02/14/19
This is a 2/14/19 technical memo about toxicity equivalence (TEQ). It is related to rulemaking for Chapter 173-460 WAC, Controls for New Sources of Toxic Air Pollutants.
https://ecology.wa.gov/technical-memo-about-toxicity-equivalence-wac-173
TerraMod Planter Box
Determined to be functionally equivalent to a Bioretention Planter or Planter Box
https://ecology.wa.gov/terramod-planter-box
Tank Waste Consent Decree
Final, entered Consent Decree for Tank Waste cleanup at Hanford.
https://ecology.wa.gov/tank-waste-consent-decree
Tank Waste Amended Order
Amended Order in Tank Waste Consent Decree case
https://ecology.wa.gov/tank-waste-amended-order
Tank Waste Final Order
This Order concerns the mutual agreements between the United States Department of Energy, Washington State, and Oregon State regarding the safe removal of radioactive waste from the Hanford Nuclear Reservation in a reasonable and expeditious manner.
https://ecology.wa.gov/tank-waste-final-order
Tekoa Approved SMP May 2017
Shoreline Master Program that has been adopted by the local jurisdiction and Approved by Ecology
https://ecology.wa.gov/tekoa-approved-smp-may-2017
Tenino Approved SMP June 2012
Shoreline Master Program that has been adopted by the local jurisdiction and Approved by Ecology
https://ecology.wa.gov/tenino-approved-smp-june-2012
Tenino Title 18 June 2012
Development regulations in Tenino's critical areas and natural resource lands
https://ecology.wa.gov/tenino-title-18-june-2012
2017 Annual Report for Taylor Shellfish
This annual report reviews Zostera Japonica controls on commercial clam beds in Willapa Bay for Taylor Shellfish.
https://ecology.wa.gov/taylor-3005-annual-report
2018 pretreatment plan for Taylor
Annual pre-treatment plan for Zostera japonica control on commercial clam beds in Willapa Bay for Tylor Shellfish
https://ecology.wa.gov/taylor-pretreatment-plan
TCP Brownfields 2024
Drone project checklist for TCP Brownfields
https://ecology.wa.gov/tcp-brownfields-2024
TCP Abandoned Mines 2024
UAS checklist for TCP abandoned mines project
https://ecology.wa.gov/tcp-abandoned-mines-2024
TCP Medical Lake ESH Landfill Fire 2024
Drone checklist for TCP Medical Lake ESH landfill fire 2024
https://ecology.wa.gov/tcp-medical-lake-esh-landfill-fire-2024
Tech Note 4 Hydrologic Analyses of Post Wildfire Conditions Aug 2016
Tech Note 4 Hydrologic Analyses of Post Wildfire Conditions
https://ecology.wa.gov/tech-note-4-august-2016
TCP Colville Post & Poles 2024
Drone checklist for the TCP Colville Post & Poles site
https://ecology.wa.gov/tcp-colville-post-poles-2024
4470 results
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