Publications & Forms

Title (link to summary)	Number	Date (released or updated)
Northwest Regional Office Addendum to Quality Assurance Project Plan A2 - Nonpoint Pollution Investigations in Western Washington - South Skagit Bay Water Quality Assessment	21-10-066	December 2021
Focus On: Wastewater Permit Fees	21-10-062	November 2021
Focus On: Fresh Fruit Packing General Permt	21-10-061	November 2021
Focus on: Runoff Water Pollution in Washington	21-10-040	November 2021
Clean Water State Revolving Fund Annual Report for SFY21	21-10-058	October 2021
Preliminary Regulatory Analyses-Reporting of 173-201A WAC Water Quality Standards for Surface Waters of the State of Washington” Salmon Spawning Habitat Protection	21-10-057	October 2021
Puget Sound No Discharge Zone Guidance for Commercial Vessels, Port Authorities and Terminal Agents	21-10-053	October 2021
East Fork Lewis River Alternative Restoration Plan	21-10-051	October 2021
Salmon Spawning Habitat Protection Rule: Preliminary Technical Support Document	21-10-050	October 2021
Preliminary Rule Implementation Plan for Chapter 173-201A WAC Water Quality Standards for Surface Waters of the State of Washington: Salmon Spawning Habitat Protection Rule	21-10-049	October 2021
SFY 2023 Aquatic Invasive Plants Grant Guidelines	21-10-046	October 2021
SFY 2023 Freshwater Algae Grant Guidlines	21-10-045	October 2021
Small Business Economic Impact Analysis for Irrigation System Aquatic Weed and Algae Control General Permit	21-10-056	September 2021
Municipal Stormwater Grants of Regional or Statewide Significance	21-10-052	September 2021
2021-2023 Puget Sound Nutrient Reduction Grant Program Funding Guidelines	21-10-042	September 2021
Water Quality Standards for Surface Waters of the State of Washington Chapter 173-201A WAC: Overview of Adopted Changes	21-10-038	September 2021
Final Chelan River Use Attainability Analysis and Associated Water Quality Criteria: Technical Support Document	21-10-037	September 2021
Final Rule Implementation Plan for Chelan River Use Attainability Analysis and Associated Water Quality Criteria	21-10-036	September 2021
Concise Explanatory Statement: Chapter 173-201A WAC Water Quality Standards for Surface Waters of the State of Washington – Chelan River Use Attainability Analysis	21-10-035	September 2021
Quality Assurance Project Plan – Nonpoint Pollution Investigations in Western Washington	21-10-027	September 2021
Quality Assurance Project Plan: PFAS Concentrations in Influent, Effluent, and Solids from Three Municipal Wastewater Treatment Plants in Washington State	21-10-048	August 2021
State Fiscal Year 2023 Funding Guidelines—Water Quality Combined Funding Program	21-10-028	August 2021
Rule Adoption Notice - Chapter 173-224 Water Quality Program Permit Fees Rulemaking	21-10-055	July 2021
Final Preliminary Regulatory Analyses for Chapter 173-201A WAC, Water Quality Standards for Surface Waters of the State of Washington — Chelan Use Attainability Analysis	21-10-034	July 2021
2021-23 Municipal Stormwater Capacity-Building Grant Funding Guidelines	21-10-033	July 2021
Water Quality Policy 1-11 Chapter 2 - Ensuring Credible Data for Water Quality Management	21-10-032	July 2021
Water Quality Standards Triennial Review Focus Sheet	21-10-031	July 2021
Addendum to the Upper Naches River and Cowiche Creek Temperature TMDL	21-10-030	July 2021
Small Business Economic Impact Analysis for the Fruit Packing General Permit	21-10-029	July 2021
Focus on: Contaminates of Concern and Wastwater Treatment Plants	21-10-026	June 2021
State Fiscal Year 2022 Final Water Quality Funding Offer List and Intended Use Plan	21-10-025	June 2021
Underground Injection Control (UIC) Stormwater Managment Program (SWMP) Components	21-10-024	June 2021
Rule Implementation Plan - WAC 173-224 - Water Quality Permit Fees	21-10-020	June 2021
Final Regulatory Analyses for Chapter 173-224 WAC, Water Quality Permit Fees	21-10-019	June 2021
Contaminants of Emerging Concern and Wastewater Treatment Plants	21-10-006	June 2021
Focus on: Nutrients General Permit Process	20-10-026	June 2021
Focus on: Reducing Nutrient Pollution in Puget Sound	20-10-025	June 2021
Guidance on using new high performance bioretention soil mixes	21-10-023	May 2021
Municipal Stormwater Grants of Regional or Statewide Significance 2021-23 Funding Guidance	21-10-021	May 2021
Lacamas Creek Bacteria, Temperature, and Nutrients Source Assessment QAPP	21-10-017	May 2021
Focus On: Water Quality Assessment	21-10-015	April 2021
Operation Certification Fee Schedule for 2022 and 2023	21-10-014	March 2021
Water Quality Standards for Surface Waters of the State of Washington Chapter 173-201A WAC: Overview of Proposed Changes to Current Rule	21-10-009	March 2021
Preliminary Chelan River Use Attainability Analysis and Site Specific Criteria: Technical Support Document	21-10-008	March 2021
Preliminary Rule Implementation Plan for Chelan River Use Attainability Analysis and Site Specific Criteria: Chapter 173-201A WAC Water Quality Standards for Surface Waters of the State of Washington	21-10-007	March 2021
Preliminary Regulatory Analyses for Chapter 173-201A WAC, Water Quality Standards for Surface Waters of the State of Washington – Chelan River Use Attainability Analysis	21-10-005	March 2021
Small Business Economic Impact Analysis for Boatyard General Permit	21-10-004	March 2021
Preliminary Regulatory Analyses: Chapter 173-224 WAC - WQ Permit Fees	21-10-002	March 2021
Draft - 2021 Critical Aquifer Recharge Areas: Guidance Document	05-10-028	March 2021
East Fork Lewis River Watershed Bacteria Monitoring and Nonpoint Source Identification	21-10-003	February 2021
Upper Yakima River Tributaries Temperature Total Maximum Daily Load (TMDL): Water Quality Improvement Report and Implementation Plan	20-10-044	February 2021
State Fiscal Year 2022 Draft Water Quality Funding Offer List and Intended Use Plan	21-10-001	January 2021

Ecology Publications & Forms

Water Quality (1636 publications 1985-2024)