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.
4469 results
2022 Streamflow Restoration competitive grant application instructions
Step by step instructions for filling out the EAGL application for WRSRP 2020 Competitive Grant Program.
https://ecology.wa.gov/application-instructions
Applying Handling Charge
LightRecycle Washington - Applying the environmental handling charge
https://ecology.wa.gov/applyinghandlingcharge
Air Quality Source Management System (SMS) Instructions
These are instructions about how to create a Secure Access Washington (SAW) Account, register for Air Quality Portal, and add Source Management System.
https://ecology.wa.gov/aqsmsinstructions
Applicability for Winery Permit Decision Tree
This decision tree graphic helps people decide if they need a winery permit.
https://ecology.wa.gov/applicability-for-winery-permit-decision-tree
Appeal Decisions
Summary of selected Washington appellate court decisions related to shorelines.
https://ecology.wa.gov/appeal-decisions
Approval Letter
Letter showing Brentwood StormTank for is approved for use in stormwater runoff filtration.
https://ecology.wa.gov/approvalletter
Application of Water Quality Criteria to Brackish Waters
Chapter 173-201A of the Washington Administrative Code (WAC), the Surface Water Quality Standards (standards) contains the description of the designated uses associated with each waterbody in the state. Special circumstances that require further instructions to determine which numeric criteria apply to a designated use category are guided by the rules in subsection 260(3).
https://ecology.wa.gov/applicationwqcriteriabrackishwaters
Rule Stakeholder Advisory Meeting Presentation Slides
Stakeholder Advisory Meeting Presentation
https://ecology.wa.gov/aprilrulestakeholderadvisorymtgslides
Aquatic Plant and Algae Management General Permit Shoreline sign templates
Aquatic Plant and Algae Management General Permit Shoreline sign templates
https://ecology.wa.gov/apamshoreline
APAM product to active ingredient conversion table
Product to active ingredient conversion table
https://ecology.wa.gov/apamtable
Eastern Washington Phase II Municipal Stormwater Permit Appendix 1
Appendix 1. Minimum Technical Requirements
https://ecology.wa.gov/appx1ewaphaseii2014
Applications for Sediment Impact Zone authorizations for Grays Harbor
Burrowing shrimp document: Applications for Sediment Impact Zone authorizations for Grays Harbor
https://ecology.wa.gov/applications-for-sediment-impact-zone-authoriz-1
Applications for Sediment Impact Zone authorizations for Willapa Bay
Burrowing shrimp docmuent: Applications for Sediment Impact Zone authorizations for Willapa Bay
https://ecology.wa.gov/applications-for-sediment-impact-zone-authorizatio
Eastern Washington Phase II Municipal Stormwater Permit Appendix 2
Appendix 2. Total Maximum Daily Load Requirements
https://ecology.wa.gov/appx2ewaphaseii2014
Eastern Washington Phase II Municipal Stormwater Permit Appendix 3
Appendix 3. Annual Report Questions for Cities, Towns and Counties
https://ecology.wa.gov/appx3ewaphaseii2014
Eastern Washington Phase II Municipal Stormwater Permit Appendix 4
Appendix 4. Annual Report Form for Secondary Permittees
https://ecology.wa.gov/appx4ewaphaseii2014
Effluent Characterization for Permit Application (Attachment A)
Ecology preferred lab methods for stormwater discharge monitoring.
https://ecology.wa.gov/attachment1-ijune2013
Eastern Washington Phase II Municipal Stormwater Permit Appendix 5
Appendix 5. Notice of Intent for Coverage
https://ecology.wa.gov/appx5ewaphaseii2014
Eastern Washington Phase II Municipal Stormwater Permit Appendix 6
Appendix 6. Street Waste Disposal
https://ecology.wa.gov/appx6ewaphaseii2014
April 4, 2023 Slides - Tug Escort and ERTV Analyses: Preliminary Results
Presentation from April 4, 2023, webinar
https://ecology.wa.gov/april-4-2023-slides-tug-escort-and-ertv-analyses-preliminary-results
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