Search Results - Washington State Department of Ecology

Error Analysis for Water Quality Policy 1-11: Pertaining to the Water Quality Assessment December 2016

Water Quality Policy 1-11 is the policy that guides listing decisions for Washington’s Water Quality Assessment to meet Clean Water Act requirements for sections 303(d) and 305(b). During updates to Policy 1-11 in 2012, several comments were received about the risk of listing errors for waters that were placed on the 303(d) list based on limited data.

https://ecology.wa.gov/erroranalysispolicy1-11

Bioassessment Alternatives Comments to support refinements to Water Quality Policy 1-11

2017 comments by interagency team about Bioassessment Alternatives to support refinements to Water Quality Policy 1-11, the Water Quality Assessment and Total Maximum Daily Load Programs

https://ecology.wa.gov/interagencyteambioassessaltscomment

Pilot Use Level Technologies Notice of Intent (application) form

Local governments with a National Pollutant Discharge Elimination System (NPDES) permit must submit this Notice of Intent Form to Ecology, and receive Ecology’s approval prior to installing a pilot-designated technology (except in retrofit situations).

https://ecology.wa.gov/puldnoi

Industrial Stormwater Monthly Site Inspection Form

Use this form for your monthly inspections if you are industrial stormwater permit holder. Inspections must be conducted by a person with the knowledge and skills to assess conditions and activities that could impact stormwater quality at the facility, and evaluate the effectiveness of best management practices required by this permit. Retain a copy of the completed and signed form.

https://ecology.wa.gov/industrial-stormwater-monthly-site-inspection-form

Ch173350_3rdPrelimDraft121516-PartOne.pdf

Part One: 010 Purpose, -020 Applicability, -021 Determination of solid waste, -025 Owner responsibilities for solid waste, -030 Effective dates, -040 Performance standards, -100 Definitions, and -200 Beneficial use permit exemptions.

https://ecology.wa.gov/ch173350_3rdprelimdraft121516-partone-pdf

Ch173350_3rdPrelimDraft121516-PartTwo.pdf

Part Two: 210 Recycling and material recovery facilities, -220 Composting facilities, -225 Other organic material handling activities, -230 Land application, -240 Energy recovery and incineration facilities, -250 Anaerobic digesters, and -300 On-site storage, collection and transportation standards.

https://ecology.wa.gov/ch173350_3rdprelimdraft121516-parttwo-pdf

Waste Treatment and Immobilization Plant Analytical Laboratory Public Comment Period Focus Sheet

This Class 3 permit modification (8C.2017.4D) focuses on the operations of the Analytical Laboratory (Lab) and provides the operating details for the Analytical Lab under the Direct-Feed Low-Activity Waste configuration.

https://ecology.wa.gov/focus-sheet-3a9ad83c09b26cfd707a988692e9ab96

Response to Comments: Modification of RCRA WTP Lab Operations

Response to Comments: Modification of the Hanford Facility Resource Conservation and Recovery Act Permit for the Treatment, Storage, and Disposal of Dangerous Waste, Part III, Operating Unit Group 10 (WA7890008967) Waste Treatment and Immobilization Plant Analytical Laboratory Operations, 24590-LAB-PCN-ENV-16-002

https://ecology.wa.gov/response-to-comments

Draft GAP Rule Conceptual Framework for Informal Review

This document provides a narrative description of the concepts being used to draft the GAP rule. It includes changes to the initial ideas presented by the Washington State Department of Ecology (Ecology) in five public webinars from June to November 2020, based on public input and feedback. This document provides information as of the time of release for informal comment.

https://ecology.wa.gov/draft-gap-rule-conceptual-framework-for-informal-r

Industrial Stormwater General Permit

We issued the Industrial Stormwater General Permit in 2014. This is a National Pollutant Discharge Elimination System (NPDES) and State Waste Discharge General Permit for stormwater discharges associated with industrial activities.

https://ecology.wa.gov/industrialstormwatergeneralpermit

Construction Stormwater General Permit

Stormwater runoff from construction sites can carry muddy water, debris, and chemicals into local waterways. Sediments, chemicals, and debris can harm aquatic life and reduce water quality. Following the requirements in the Construction Stormwater General Permit (CSWGP) results in discharges that help control and reduce water pollution.

https://ecology.wa.gov/cswgpfinalmod2017

Port Orchard Limited Amendment Attachment A: Findings and Conclusions

Attachment A: Findings and Conclusions for Proposed Amendments. This document Ecology’s formal description of the local SMP update process and conclusions regarding consistency with state laws and rules.

https://ecology.wa.gov/portorclaattafincon

Construction Stormwater General Permit Fact Sheet

This is the detailed explanation of the authority and defensibility of the Construction Stormwater General Permit. This fact sheet is a companion document to the draft revised National Pollutant Discharge Elimination System (NPDES) and State Waste Discharge General Permit for Stormwater Discharges Associated with Construction Activity (Construction Stormwater General Permit).

https://ecology.wa.gov/factsheet2015

CSWGP High Turbidity/Low Transparency Reporting

Sites covered under the Construction Stormwater General Permit (Permit) must take specific reporting and adaptive management actions in order to comply with permit requirements when obtaining high turbidity results (greater than or equal to 250 Nephelometric Turbidity Units (NTUs)) or low transparency results (less than or equal to 6 centimeters).

https://ecology.wa.gov/highturbidity

Plate 2 (WAC 173-557; 173-555) 01/27/15

Plate 2 - Simplified surficial geology, generalized hydrogeologic sections, and surface geophysical transects, Spokane Valley–Rathdrum Prairie Aquifer WAC 173-557; 173-555 Water Resources Management Program (WRMP) for the Spokane River and Spokane Valley Rathdrum Prairie (SVRP) Aquifer and amendment to WAC 173-555-010.

https://ecology.wa.gov/plate-2-wac-173-557;-173-555-01-27-15

Treatment Systems for Contaminated Construction Runoff (TSCCR)

This spreadsheet shows treatment systems that may be effective in treating specific contaminants. Users should evaluate the effectiveness of any treatment system they plan to implement and confirm that the chosen treatment system does not cause or contribute to a violation of the water quality standards.

https://ecology.wa.gov/treatmentsystems

NORPAC Supplemental Fact Sheet

This supplemental fact sheet explains and documents the decisions the Department of Ecology (Ecology) made in drafting the proposed National Pollutant Discharge Elimination System (NPDES) permit modification for North Pacific Paper Company, LLC (NORPAC).

https://ecology.wa.gov/norpac-supplemental-fact-sheet

Annual Report 2023

The Washington State Mercury-Containing Lights Product Stewardship Program began on Jan. 1, 2015, for the collection and recycling of mercury-containing lights sold at retail. Pursuant to WAC 173-910-430, each stewardship organization must submit an annual report to the department describing the results of implementing the stewardship organization's plan for the prior calendar year.

https://ecology.wa.gov/annual-report-2023

SEPA determination of nonsignificance

This document is a determination of nonsignificance (DNS) in which Ecology has determined the proposed biosolids general permit will not have a probable significant adverse impact on the environment.

https://ecology.wa.gov/sepa-determination-of-nonsignificance-26201b433614b0478c7dbc8114f0a4ba

Naval Radio Station Jim Creek

Comment Period: Oct. 14, 2025, 12 a.m. - Nov. 14, 2025, 11:59 p.m.
We are seeking feedback on what water quality conditions we should consider for the Naval Radio Station Jim Creek 401 certification.

https://ecology.wa.gov/events/wq/401-certifications/naval-radio-station-jim-creek

Sustainable Aviation Fuel Programmatic Environmental Impact Statement scoping

Public Event: Oct. 21, 2025, 1 p.m., in Online webinar

https://ecology.wa.gov/events/sea/clean-energy-coordination/sustainable-aviation-fuel-programmatic-environmental-impact-statement-scoping-meeting-1

Sustainable Aviation Fuel Programmatic Environmental Impact Statement scoping

Public Event: Oct. 22, 2025, 9 a.m., in Online webinar

https://ecology.wa.gov/events/sea/clean-energy-coordination/sustainable-aviation-fuel-programmatic-environmental-impact-statement-scoping-meeting-2

Draft ORCA waiver documents

Comment Period: Nov. 3, 2025, 12 a.m. - Nov. 30, 2025, 11:59 p.m.
We invite you to review and comment on the waiver documents for ORCA impacted jurisdictions to receive a waiver and extend their timeline for meeting the organics collection requirements.

https://ecology.wa.gov/events/swm/organics-recycling-collection-areas-orca-waiver-process/organics-recycling-collection-areas-orca-waiver-process-informal-comment-period

Chapter 173-446 WAC – Climate Commitment Act Program Rule

This is the rulemaking page for Chapter 173-446 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-446

Clean Earth Washougal public comment period

Comment Period: Oct. 6, 2025, 12 a.m. - Dec. 6, 2025, 11:59 p.m.
We invite you to review and comment on cleanup documents for contamination cleanup at Clean Earth Washougal located at 625 S. 32nd Street in Washougal, Washington.

https://ecology.wa.gov/events/hwtr/clean-earth/washougal

Chapter 173-331 WAC

This is the rulemaking page for Chapter 173-331 WAC, Vehicle Battery Recycling.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-331-dec15

Chapter 173-446 WAC – Allowance Price Containment Reserve

This is the rulemaking page for Chapter 173-446 WAC, Allowance Price Containment Reserve.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-446-apcr

Grant Applicant Workshop

Public Event: Jan. 22, 2026, 10 a.m., in Online webinar
If your organization is working to improve streamflow and aquatic resources in your watershed, you may qualify for our competitive grants.

https://ecology.wa.gov/events/wr/sfr-grants-25-26/january-2026-virtual

Scoping comment period for sustainable aviation fuel

Comment Period: Oct. 6, 2025, 12 p.m. - Nov. 5, 2025, 11:59 p.m.
We are seeking public input to help us determine what to study in the sustainable aviation fuel programmatic environmental impact statement.

https://ecology.wa.gov/events/sea/clean-energy-coordination/sustainable-aviation-fuel-scoping-comment-period

Webinar #4: Fastening the Textile Community

Public Event: May 15, 2025, 10 a.m., in Online webinar

https://ecology.wa.gov/events/swm/textile-webinar-series/textile-webinar-may-15-2025

Webinar #2: Ripping the Stitch

Public Event: May 8, 2025, 10 a.m., in Online webinar

https://ecology.wa.gov/events/swm/textile-webinar-series/textile-webinar-may-8-2025

Battery Stewardship Rulemaking CR-102

Comment Period: July 23, 2025, 12 a.m. - Sept. 10, 2025, 11:59 p.m.
173-905 WAC Battery Stewardship Program

https://ecology.wa.gov/events/rulemaking/173-905-wac-battery-stewardship/battery-stewardship

Battery Stewardship Rulemaking CR-102

Public Event: Aug. 28, 2025, 1 p.m., in Online webinar

https://ecology.wa.gov/events/rulemaking/173-905-wac-battery-stewardship/battery-stewardship-rulemaking-8-28-25

Battery Stewardship Rulemaking CR-102

Public Event: Sept. 3, 2025, 6 p.m., in Online webinar

https://ecology.wa.gov/events/rulemaking/173-905-wac-battery-stewardship/battery-stewardship-rulemaking-9-3-25

Amendment to Instream Resources Protection Program rules for, WRIA 7, 8, 13, 14, 15

Comment Period: Sept. 10, 2025, 12 a.m. - Oct. 17, 2025, 11:59 p.m.
Ecology is conducting rulemaking to amend five chapters of instream resource protection rules and hosting an informal comment period during the development phase of the rulemaking.

https://ecology.wa.gov/events/wr/rulemaking-173-507-508-513-514-515/informal-comment-period

Cleanup Plan Prioritization comment period

Comment Period: Oct. 23, 2025, 12 a.m. - Nov. 28, 2025, 11:59 p.m.
We want your feedback on our current and proposed water cleanup work.

https://ecology.wa.gov/events/wq/annual-public-tmdl-arp-prioritization-webinar/tmdl-arp-plan-prioritization-public-webinar-9830fd7ef7b943c90b81920fff576ac9

Chapter 173-201A WAC (Salmon Spawning Habitat)

This is the rulemaking page for Chapter 173-201A WAC for salmon spawning habitat.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac173-201a-salmon-spawning-habitat

Chapter 173-443 WAC Hydrofluorocarbons

This is the rulemaking page for Chapter 173-443 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-443-hydrofluorocarbons

Chapter 173-219 WAC

On January 23, 2018 the Department of Ecology adopted new rule, Chapter 173-219 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-219-jun14

Chapters 173-441 and 173-446 WAC – Electricity Markets

This is the rulemaking page for Chapter 173-441 WAC and Chapter 173-446 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-441-446

Alcoa Vancouver

Comment Period: June 18, 2025, 12 a.m. - Aug. 6, 2025, 11:59 p.m.
Alcoa Vancouver

https://ecology.wa.gov/events/swm/alcoa-vancouver/alcoa-vancouver

National Pollutant Discharge Elimination System (NPDES) permit renewal and fact sheet

Comment Period: Oct. 29, 2025, 12:01 a.m. - Dec. 10, 2025, 11:59 p.m.
We invite you to review and comment on the draft National Pollutant Discharge Elimination System (NPDES) permit renewal and Fact Sheet for U.S. Oil and Refining Co. in Tacoma (Pierce County) from 12:01 am, October 29 through 11:59 pm, December 10, 2025.

https://ecology.wa.gov/events/swm/u-s-oil/u-s-oil-tacoma-national-pollutant-discharge-system-and-fact-sheet

Draft ORCA waiver documents

Public Event: Nov. 6, 2025, 1:30 p.m., in Online webinar
We invite you to join us for a webinar about the Organics Recycling Collection Areas (ORCA) waiver process.

https://ecology.wa.gov/events/swm/organics-recycling-collection-areas-orca-waiver-process/informational-webinar

Chapter 173-339 WAC – Cosmetic Products Restrictions (Lead in Cosmetics)

This is the rulemaking page for Chapter 137-339 WAC (Lead in Cosmetics).

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-339-lead-in-cosmetics

Chapter 173-333 WAC

This is the rulemaking page for Chapter 173-333 WAC, Chemical Action Plans.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-333-oct15

Chapter 173-501 WAC

On May 27, 2020, Ecology adopted amendments to Chapter 173-501 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-501

Chapter 173-446B WAC – Climate Commitment Act Funds Reporting

This is the rulemaking page for Chapter 173-446B WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-446b

Chapter 173-201A WAC (revisions)

On Dec. 30, 2019, Ecology adopted amendments to Chapter 173-201A WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac173-201a-revisions

Chapter 173-448 WAC – Air Quality in Overburdened Communities

This is the rulemaking page for Chapter 173-448 WAC, Air Quality in Overburdened Communities.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-448

Chapter 173-525 WAC

This is the rulemaking page for Chapter 173-525 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-525-mar05