Search Results - Washington State Department of Ecology

Washington State Composted Materials for 2015

A document listing composting facilities in Washington, the types of materials they accept and the amount of material they processed in 2015.

https://ecology.wa.gov/washington-state-composted-materials-for-2015

121317CoverageandSSLAPforFMFRosmanUnit.pdf

Final coverage letter and related documents for biosolids application permit at Rosman Farms in Lincoln County.

https://ecology.wa.gov/121317coverageandsslapforfmfrosmanunit-pdf

Cleanup Rule (WAC 173-340) exploratory rulemaking: 2018 comments

This document contains comments received from the public during the Exploratory Rulemaking process, from February 15 through May 11, 2018. These include comments provided through the online eComment system, by mail, by email, and on comment cards at the April 3rd listening session.

https://ecology.wa.gov/cleanuprulemakingexprulemakingcommentsthru051118

Remedial Investigation Report template

This document is a suggested template to use when preparing a remedial investigation report for an environmental cleanup. It is designed to meet the requirements of the Model Toxics Control Act described in 173-340-350(7) and 173-340-840 of the Washington State Administrative Code. This suggested template is not required.

https://ecology.wa.gov/remedialinvestigationtemplate

Borrador de la Declaración del Impacto Ambiental para el proyecto propuesto de reducción de daños por inundaciones en la cuenca del Río Chehalis

Esta hoja de enfoque describe el proceso de revisión ambiental y el período de comentarios públicos con una visión general del proyecto propuesto por el solicitante.

https://ecology.wa.gov/chehalisdeis-focussheet-espanol

PreferredPerformanceStdsFinal2007.pdf

This document explains the environmentally sound management and performance standards for direct processors in the E-Cycle Washington program.

https://ecology.wa.gov/preferredperformancestdsfinal2007-pdf

Floodplain Habitat Assessment and Mitigation Regional Guidance for the Puget Sound Basin

This guidance document was developed by Region 10 of the Federal Emergency Management Agency, as part of its continuing effort to improve floodplain management practices and assist communities in meeting the requirements of the Endangered Species Act.

https://ecology.wa.gov/floodplain-habitat-assessment-and-mitigation-regio

Marine Fisheries Service Biological Opinion for Puget Sound, National Flood Insurance Program

The enclosed document contains a biological opinion prepared by the National Marine Fisheries Service pursuant to section 7(a)(2) of the Endangered Species Act of 1973, as amended (16 U.S.C. 1531 et seq.), on the effects of certain on-going elements of the National Flood Insurance Program throughout Puget Sound in Washington State.

https://ecology.wa.gov/marine-fisheries-service-biological-opinion-for-pu

Adopted Rule - Overview of Changes to Repealed Rule (WAC 173-360; WAC 173-360A) 07/17/18

This document provides a summary of changes to the repealed chapter, WAC 173-360. Changes highlighted grey were made to be consistent with federal rule requirements in 40 C.F.R. Part 280 or to comply with state program approval (SPA) requirements in 40 C.F.R. Part 281.

https://ecology.wa.gov/adopted-rule-overview-of-changes-to-repealed-rule

Industrial Stormwater General Permit Frequently Asked Questions

This FAQ outlines questions and answers that Industrial Stormwater General Permit holders may find helpful. This document is intended as guidance only, and does not modify or otherwise change the permit requirements in the Industrial Stormwater General Permit.

https://ecology.wa.gov/industrial-stormwater-general-permit-faq

Vessel Deconstruction Permit fact sheet

This fact sheet is a companion document to the draft National Pollutant Discharge Elimination System (NPDES) and State Waste Discharge General Permit for Discharges Associated with Vessel Deconstruction Activity (Vessel Deconstruction General Permit, or VDGP). The proposed permit authorizes the discharge of stormwater and a limited number of non-stormwater discharges.

https://ecology.wa.gov/vesseldeconstructionfactsheet

Water Quality Index spreadsheet, version 6

The Water Quality Index, or WQI, summarizes and presents water-quality data in an easily understood format. This spreadsheet is a downloadable tool for calculating a WQI score based on your own data.

https://ecology.wa.gov/water-quality-index-version-6

Wastewater Operator Certification WAC

This is the Washington Adminstration Code that governs how we certify operators. It also shows how plants are classified at the end of the document.

https://ecology.wa.gov/ww-wac

Adopted Rule - Text with Tracked Changes to Proposed Rule (WAC 173-360; WAC 173-360A) 07/17/18

There are some differences between the proposed Underground Storage Tank rule filed on January 24, 2018, and the adopted rule filed on July 18, 2018. This document identifies all of the changes Ecology made to the text of the proposed rule, including all deletions and additions.

https://ecology.wa.gov/adopted-rule-text-with-tracked-changes-to-proposed

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

MTCASGL12.0: Excel workbook for individual hazardous substances

Statistical workbook for calculating cleanup levels for individual hazardous substances for sites being cleaned up under the Model Toxics Control Act.

https://ecology.wa.gov/workbook-for-calculating-cleanup-levels-for-indivi

CAFO fact sheet.

This fact sheet is a companion document to the draft revised Concentrated Animal Feeding Operation General (CAFO) National Pollutant Discharge Elimination System (NPDES) and State Waste Discharge General Permit (combined permit) and the draft CAFO State Waste General Permit (state permit). It provides the legal and technical basis for permit issuance or reissuance required in Washington Administra

https://ecology.wa.gov/fact-sheet-draft

Applicant Prep Tool for Water Quality Combined Funding Applications in EAGL

This is the Applicant Prep Tool document for people applying for funding via a Water Quality Combined funding program application in EAGL.

https://ecology.wa.gov/wqc-eagl-applicant-prep-tool

Applicant Prep Tool for Water Quality Stormwater

This is the Applicant Prep Tool document for people applying for funding via a Water Quality Combined (specifically stormwater projects) funding program application in EAGL.

https://ecology.wa.gov/wqc-eagl-applicant-prep-tool-for-stormwater

EAGL Progress Report and Payment Request forms guidance

Guidance document for using the Ecology EAGL system for completing required project progress reports and payment requests for reimbursement

https://ecology.wa.gov/wqc-recipient-training-eagl-prpr-guidance

Tigerfloc Functional Equivalency

Ecology finds Tigerfloc functionally equivalent to the flocculent chemicals identified in Best Management Practice C250 (Construction Stormwater Chemical Treatment) for stormwater management. Contractors may use Tigerfloc as a replacement for other approved chemicals such as ChitoSan Acetate when operating an enhanced sand filtration system on construction sites.

https://ecology.wa.gov/tigerflockfunctionallyequivalent

Aquatic Noxious Weed Control NPDES General Permit

The general permit covers the indirect discharge of herbicides, adjuvants, and marker dyes into estuaries, marine areas, wetlands, along lake shorelines, rivers, streams, and other wet areas to manage Spartina and freshwater noxious weeds in Washington. An indirect discharge occurs when there may be incidental overspray or dripping of a chemical from the treated plants into waters of the state.

https://ecology.wa.gov/noxiouspermitfinal050712

Electronics Recyclers International Audit Report

This document includes information about direct processor, Electronics Recyclers International, and includes their annual environmental audit report. This audit verifies compliance with the performance standards for direct processors in the E-Cycle WA program.

https://ecology.wa.gov/eriauditsummary2016

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

Guide to Changes in the 2016 Sand & Gravel General Permit

This guide provides information on what has changed between the 2011 and 2016 Sand & Gravel General Permit. The guide is setup by permittee categories and NAICS / Ecology Codes. Refer to the appropriate categories below for your business (more than one category may apply to your operations). This document is only intended as a guide. Refer to the permit for more information.

https://ecology.wa.gov/changesguide2016

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

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

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

Port Angeles Rayonier Mill

Comment Period: June 12, 2025, 8 a.m. - Aug. 12, 2025, 11:59 p.m.
We invite you to review and comment on documents for the Port Angeles Rayonier Mill cleanup. The study area of this site is moving to the next phase of cleanup. Your feedback is an important part of this process.

https://ecology.wa.gov/events/tcp/port-angeles-rayonier-mill-e04b5ce8bee9303fdb84b4149295d202/port-angeles-rayonier-mill

Port Angeles Rayonier Mill

Public Event: July 8, 2025, 5 p.m., in Port Angeles, WA
Join us for a public meeting and open house about the Rayonier Mill cleanup. This is an opportunity to learn more about the cleanup, ask questions, and submit written comments.

https://ecology.wa.gov/events/tcp/port-angeles-rayonier-mill-e04b5ce8bee9303fdb84b4149295d202/port-angeles-rayonier-mill-a93a976a298d82f81bc41f1540b5e4a7

Webinar #1: Cut from the Same Cloth

Public Event: May 6, 2025, 10 a.m., in Online webinar

https://ecology.wa.gov/events/swm/textile-webinar-series/textile-webinar-may-6-2025

Webinar #3: Hemmed in to Cutting Loose

Public Event: May 13, 2025, 10 a.m., in Online webinar

https://ecology.wa.gov/events/swm/textile-webinar-series/textile-webinar-may-13-2025

June 24 Nutrient Forum Meeting

Public Event: June 24, 2025, 1 p.m., in Online webinar
We invite you to join our upcoming Puget Sound Nutrient Forum, held virtually on June 24, 2025, from 1 p.m. – 4 p.m.

https://ecology.wa.gov/events/wq/puget-sound-nutrient-forum/june-24-meeting

Twelve Benefit, Moses Lake

Comment Period: June 18, 2025, 12 a.m. - July 7, 2025, 11:59 p.m.
We propose to approve Twelve Benefit’s air quality notice of construction (NOC) application. We will hold a public comment period if one is requested.

https://ecology.wa.gov/events/aq/notice-of-construction-applications/twelve-benefit-comment-ends-7-7-25

Chapters 173-425, 173-430, and 173-400 WAC, Flame Cap Kilns and Air Curtain Incinerators

This is the rulemaking page for Chapters 173-425, 173-430, and 173-400 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/rulemaking/wac-173-425-430-400

Whidbey Marine & Auto Supply cleanup site, Freeland

Comment Period: May 19, 2025, 12 a.m. - June 20, 2025, 11:59 p.m.
We invite you to review and comment on documents for the Whidbey Marine & Auto Supply cleanup site.

https://ecology.wa.gov/events/tcp/whidbey-marine-and-auto-supply/whidbey-marine-and-auto-supply

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

Draft NPDES water quality permit

Public Event: March 4, 2025, 5:30 p.m., in Online webinar
We invite you to review and comment on the draft National Pollutant Discharge Elimination System Waste Discharge (NPDES) permit for Georgia-Pacific Camas Mill in Camas (Clark County).

https://ecology.wa.gov/events/swm/georgia-pacific-camas/npdes-water-quality-permit-mar4-webinar

Draft Nonpoint plan

Comment Period: May 22, 2025, 12 a.m. - Aug. 29, 2025, 11:59 p.m.
We are currently accepting comments on the draft Nonpoint Plan.

https://ecology.wa.gov/events/wq/nonpoint-plan/draft-nonpoint-plan

Seashore Villa Mobile Home Park Sewage Treatment Plant Draft Permit

Comment Period: May 28, 2025, 12 a.m. - June 27, 2025, 11:59 p.m.
We invite you to comment on the draft permit No. WA0037273

https://ecology.wa.gov/events/wq/npdes-discharge-permit/seashore-villa-mobile-home-park

Pacific Beach Wastewater Treatment Plant Draft Permit

Comment Period: May 27, 2025, 12 a.m. - June 26, 2025, 11:59 p.m.
We invite you to comment on the draft permit No. WA0037095

https://ecology.wa.gov/events/wq/npdes-discharge-permit/grays-harbor-county

Ilwaco Wastewater Treatment Plant Draft Permit

Comment Period: May 28, 2025, 12 a.m. - June 27, 2025, 11:59 p.m.
We invite you to comment on the draft permit No. WA0023159

https://ecology.wa.gov/events/wq/npdes-discharge-permit/city-of-ilwaco

Stevenson Wastewater Treatment Plant Draft Permit

Comment Period: June 11, 2025, 12 a.m. - July 11, 2025, 11:59 p.m.
We invite you to comment on the draft permit No. WA0020672

https://ecology.wa.gov/events/wq/npdes-discharge-permit/city-of-stevenson

Clean Vehicles Program Rulemaking

Comment Period: May 15, 2025, 12 p.m. - July 3, 2025, 11:59 p.m.
You're invited to review and provide comments on Clean Vehicles Program rulemaking documents.

https://ecology.wa.gov/events/cpr/ao24-07-chapter-173-423-wac/ao24-07-formal-comment-ends-7-3-2025

Chapter 173-201A WAC (Aquatic Life Toxics Criteria)

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

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-201a-aquatic-life-toxics-criteria

Chapters 173-424 and 173-455 WAC – Clean Fuels Program

This is the rulemaking page for Chapters 173-424 and 173-455 WAC.

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-424-455

Chapter 173-201A WAC (Natural Conditions)

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

https://ecology.wa.gov/regulations-permits/laws-rules-rulemaking/closed-rulemaking/wac-173-201a-natural-conditions

Clean Vehicles Program Rulemaking Public Hearing #1

Public Event: June 24, 2025, 9 a.m., in Online webinar

https://ecology.wa.gov/events/cpr/ao24-07-chapter-173-423-wac/clean-vehicles-program-rulemaking-public-hearing-6-25-2025

Clean Vehicles Program Rulemaking Public Hearing #2

Public Event: June 25, 2025, 5 p.m., in Online webinar

https://ecology.wa.gov/events/cpr/ao24-07-chapter-173-423-wac/clean-vehicles-program-rulemaking-public-hearing-6-25-2025-a55dafa1811c3c91179a198be286ae5e

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