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.
Maia Bellon EPA Public Hearing Sept 25 2019
This is the testimony that Director Bellon gave at the EPA public hearing on Sept. 25, 2019.
https://ecology.wa.gov/bellon-epa-public-hearing-sept-25-2019
Pierce County Comments Concerning the Update to Water Quality Policy 1-11
These are comments regarding bioassessment data in the Update to Water Quality Policy 1-11
https://ecology.wa.gov/bioassesscommentspierceco031717
Policy 1-11 Public Dialogue Bioassessment Listings December 2016
This is the quick review of some key issues regarding bioassessment listings in the Water Quality Assessment/Policy 1-11 Updates
https://ecology.wa.gov/bioassessmentissuepaperpolicy1-11
Boatyard general permit Erratus
Boatyard general permit Corrections and Clarifications (Erratus)
https://ecology.wa.gov/boatyard-erratumandclarifications-20160927
City and County letter identifying Timeline and Budget for TMDL implementation
TMDL budget and timeline for Whatcom County and Bellingham TMDL project
https://ecology.wa.gov/bellinghambudgettimelineltr
Bid Specifications Insert for 319 grant funded projects
Bid Specifications insert for Water Quality 319 grant funded projects
https://ecology.wa.gov/bid-specifications-insert-for-319-grant-funded-pro
Bed Specifications insert for Centennial grant funded projects
Bed Specifications insert for Water Quality Centennial grant funded projects
https://ecology.wa.gov/bid-specifications-insert-for-centennial-funded-pr
Ecology Water Quality Grants and Loans BMP Approval Form
BMP Approval Form for Ecology Water Quality Grants and Loans funding and projects
https://ecology.wa.gov/bmp-approval-form
Boatyard general permit fact sheet
Detailed explanation of Boatyard general permit
https://ecology.wa.gov/boatyard-factsheet-final-20160706
Reporting BMPs and Load Reductions guidance for 319 and Centennial projects
BMP and Load Reduction Reporting PowerPoint Presentation
https://ecology.wa.gov/bmp-and-load-reduction-reporting-2017
BioMod for Stormwater Runoff Filtration
A letter from Ecology stating this technology is equivalent to a bioretention planter box.
https://ecology.wa.gov/biomod
BMP Supplies Spring Berm
This letter determines that the Best Management Practices Supplies Spring Berm is functionally equivalent to the C207 (Check Dam) and C208 (Triangular Silt Dike) Best Management Practices.
https://ecology.wa.gov/bmpsupplies
Attachment 1-I - Effluent characterization requirements
Effluent characterization requirements for industrial NPDES permit applications
https://ecology.wa.gov/att1-ind_per_app
Bioretention Inspection Form
Low Impact Development guidance - Bioretention Inspection Form
https://ecology.wa.gov/bioretentioninspectionform
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
Building Industry Association of Washington & Associated General Contractors Appeal
Appeal of 2005 Construction Stormwater General Permit by the Building Industry Association of Washington & Associated General Contractors
https://ecology.wa.gov/associatedgeneralcontractors
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