Publications & Forms

Title (link to summary)	Number	Date (released or updated)
Small Business Economic Impact Analysis: Fresh Fruit Packing General Permit	26-10-057	June 2026
Annual Report Washington’s Clean Water State Revolving Fund for State Fiscal Year 2025	26-10-055	June 2026
Quality Assurance Project Plan: Lacamas Creek Temperature Source Assessment	26-10-053	June 2026
Fact sheet: Designing and Evaluating Behavior Change Marketing Campaigns	26-10-041	June 2026
Fact sheet: 2019-2020 Nearshore Mussel monitoring survey in the urban nearshore of Puget Sound	26-10-040	June 2026
Fact sheet: Measuring Individual Tree Water-use in Mature Native Species in the Pacific Northwest to Determine their Benefits for Stormwater	26-10-039	June 2026
Fact sheet: The Effects of Mulch on Stormwater Treatment and Maintenance Effort in Bioretention Systems	26-10-038	June 2026
Fact sheet: Oyster Shell Retrofits in Catch Basins for Dissolved Metals Treatment	26-10-037	June 2026
Fact sheet: Redmond Paired Watershed Study – Interim Findings	26-10-036	June 2026
Fact sheet: Regional Spill Hotline Feasibility Study	26-10-035	June 2026
Fact sheet: 2020 Update to the Illicit Connection and Illicit Discharge (IC-ID) Field Screening and Source Tracing Guidance Manual	26-10-034	June 2026
Fact sheet: Bioretention Hydrologic Performance Study – Focus on Current Designs	26-10-033	June 2026
Fact sheet: Plant and fungi amendments to bioretention for pollutant reduction over time	26-10-032	June 2026
Fact sheet: Puget Small Streams Study Design	26-10-031	June 2026
Fact sheet: Bioretention Capture Efficacy of PCBs from Stormwater	26-10-030	June 2026
Fact sheet: Bioretention Media Blends to Improve Stormwater Treatment: Final Phase of Study to Develop New Specifications	26-10-029	June 2026
Fact sheet: Using Western Washington Catch Basin Inspection and Maintenance Data to Predict Maintenance Schedules and Identify Cost-Efficiencies	26-10-028	June 2026
Fact sheet: Rain Garden and Bioretention Assessment Protocol	26-10-027	June 2026
Fact sheet: Regional Stormwater Facility Retrofit Study in Federal Way, Washington	26-10-026	June 2026
Fact sheet: Bioretention Hydrologic Performance Study, Phase 1	26-10-025	June 2026
Fact sheet: SAM Receiving Water Studies Synthesis	26-10-024	June 2026
Fact Sheet: Nearshore Sediment Monitoring for the Stormwater Action Monitoring (SAM) Program, Puget Sound	26-10-023	June 2026
Fact sheet: Status and Trends Study of Puget Lowland Ecoregion Streams: Evaluation of the First Year (2015) of Monitoring Data	26-10-022	June 2026
Fact sheet: Stormwater Retrofit Monitoring in the Echo Lake Drainage Basin	26-10-021	June 2026
Fact sheet: Business Inspection Stormwater Source Control Effectiveness Study	26-10-020	June 2026
Fact sheet: Redmond Paired Watershed Study – Status Update	26-10-019	June 2026
Fact sheet: Illicit discharge detection and elimination (IDDE) data evaluation for Western Washington	26-10-018	June 2026
2010-2015 Bacteria Data Compilation from Nearshore Marine Areas in Puget Sound	26-10-017	June 2026
2010-2015 Bacteria Data Compilation from Nearshore Marine Areas in Puget Sound	26-10-016	June 2026
2010-2015 Bacteria Data Compilation from Nearshore Marine Areas in Puget Sound	26-10-015	June 2026
Burnt Bridge Creek Advance Restoration Plan	26-10-049	May 2026
2022 Water Quality Assessment – Response to Comments	25-10-026	May 2026
Supporting Information for the 2022 Water Quality Assessment	25-10-025	May 2026
Focus On: Water Quality Assessment 2022	24-10-068	May 2026
2026 Solution to the Pollution coloring book	26-10-047	April 2026
Southwest Regional Office Addendum to Quality Assurance Project Plan Appendix A4: Lower Big Quilcene River Restoration Temperature Characterization Study	26-10-046	April 2026
Voluntary Clean Water Guidance for Agriculture	26-10-045	April 2026
2025 Statewide Total Maximum Daily Load (TMDL) and Water Cleanup Prioritization Webinar Response to Comments	26-10-044	April 2026
Fact Sheet: About SAM	26-10-014	April 2026
Focus on: Outstanding Resource Water	22-10-020	April 2026
Focus on: Clean Water Guidance Suites of Practices	26-10-043	March 2026
Spreading the word about riparian restoration	26-10-042	March 2026
Small Business Economic Impact Analysis: Upland Finfish Hatching and Rearing General Permit	26-10-013	March 2026
Puget Sound Nearshore Mussel Monitoring: 2023/2024 Survey Status	26-10-009	March 2026
Voluntary Clean Water Guidance for Agriculture	20-10-008	March 2026
Technical Guidance Manual for Evaluating Emerging Stormwater Treatment Technologies: Technology Assessment Protocol - Ecology (TAPE)	18-10-038	March 2026
Wastewater and Stormwater Permit Fee Program Report to the Legislature 2023-2025 Biennium	25-10-082	February 2026
Washington’s Water Quality Management Plan to Control Nonpoint Sources of Pollution 2025	25-10-040	February 2026
State Fiscal Year 2026 Clean Water State Revolving Fund Emergency Funding Program Guidelines	26-10-012	January 2026
State Fiscal Year 2027 Draft Water Quality Funding Offer List and Intended Use Plan	26-10-010	January 2026
January 2026 Update on Puget Sound Nutrients	26-10-008	January 2026
State Fiscal Year 2026 Funding Guidelines Columbia and Spokane River Basin Toxics Reduction Grants	26-10-007	January 2026
Coloring book design contest teacher's packet	26-10-002	January 2026
Concurso de dibujos para un libro de colorear sobre el agua limpia: elegibilidad y reglas	26-10-001ES	January 2026
Coloring book design contest guidelines	26-10-001	January 2026
Spokane River Toxics Reductions Grant Program Environmental Justice Assessment	25-10-079	January 2026
Development of a Laboratory Procedure to Evaluate 6PPDQ in Stormwater Sediment	25-10-056	January 2026
Land Treatment System Engineering and Design Guidance (Green Book)	25-10-021	January 2026

Ecology Publications & Forms

Water Quality (1817 publications 1985-2026)