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.
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
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
Aquatic Plant and Algae Management General Permit Business and residential notice
Aquatic Plant and Algae Management General Permit Business and residential notice
https://ecology.wa.gov/apambusiness
APAM Business and Residential Notice Template
Template: APAM Business and Residential Treatment Notice
https://ecology.wa.gov/apambusiness-and-residential-notice-template
Aquatic Plant and Algae Management General Permit Draft NOI
Aquatic Plant and Algae Management General Permit Draft NOI
https://ecology.wa.gov/apamdraftnoi
Aquatic Plant and Algae Management General Permit Errata
Aquatic Plant and Algae Management General Permit Errata
https://ecology.wa.gov/apamerrata
Aquatic Plant and Algae Management General Permit Shoreline sign templates - Spanish
Aquatic Plant and Algae Management General Permit Shoreline sign templates - Spanish
https://ecology.wa.gov/apamespanol
Aquatic Plant and Algae Management General Permit Fact Sheet
Aquatic Plant and Algae Management General Permit Fact Sheet
https://ecology.wa.gov/apamfactsheet
Aquatic Plant and Algae Management General Permit
Aquatic Plant and Algae Management General Permit
https://ecology.wa.gov/apampermit
Aquatic Plant and Algae Management General Permit Response to comments
Aquatic Plant and Algae Management General Permit Response to comments
https://ecology.wa.gov/apamresponse
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
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