Search Results - Washington State Department of Ecology

Water Pollution Control Revolving Fund Engineering Services Insert

Clauses that will be incorporated into contracts for engineering services who receive financial assistance from the Ecology Water Pollution Control Revolving Fund.

https://ecology.wa.gov/water-pollution-control-revolving-fund-engineering

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

Oil spill drill self-certification guidance

Contains the instructions when you are approved to self-certify an oil spill drill, or provide documentation for incidents/unannounced drills.

https://ecology.wa.gov/self-certification-drill-checklist

SEPA Environmental Checklist

Governmental agencies use this checklist to help determine whether the environmental impacts of your proposal are significant.

https://ecology.wa.gov/sepa-environmental-checklist-doc

SEPA Environmental Checklist

Governmental agencies use this checklist to help determine whether the environmental impacts of your proposal are significant.

https://ecology.wa.gov/sepa-environmental-checklist-pdf

Letter to Chairman Barrossa Senate Committee on Environment and Public Works

A letter from the Washington Department of Ecology, signed by Director Maia Bellon, to Senators John Barrsso and Tom Carpenter, Chairman and ranking member of the Senate Environment & Public Works Committee, respectively, setting the record straight on why a water quality certification was denied to Millennium Bilk Terminals - Longview.

https://ecology.wa.gov/letter-to-chairman-barrossa

Response to Comments (Appendix D from permit Fact Sheets)

This is the response to comments received on the draft permits. This document is a copy of Appendix D which is found in each of the Permit Fact Sheets located PARIS database.

https://ecology.wa.gov/responsetocomments

Freshwater Algae Control Grant Program - SFY 2020 Final Offer List

For the Fresh Water Algae Control grants funding program, this is the State Fiscal Year 2020 Final Offer List showing which projects will be offered funding and how much is being offered to them.

https://ecology.wa.gov/fy2020-freshwater-algae-grants-program-offer-list

Freshwater Algae Control Grant Program - SFY 2021 Final Offer List

For the Fresh Water Algae Control grants funding program, this is the State Fiscal Year 2021 Final Offer List showing which projects will be offered funding and how much is being offered to them.

https://ecology.wa.gov/sfy-2021-freshwater-algae-control-program-offer-li

Water Quality Combined Funding - SFY 2022 Draft Offer List

This publication provides information about the annual Water Quality Combined Funding cycle and specifically the draft version of who is projected to be given funding for State Fiscal Year 2022.

https://ecology.wa.gov/sfy-2022-draft-offer-list-excel-version-water-qu

Adopted Rule - Summary - O&M Compliance Dates (WAC 173-360; WAC 173-360A) 07/17/18

This table summarizes the dates by which owners and operators of underground storage tanks systems installed on or before the effective date of the new rule, Chapter 173-360A WAC, need to comply with the new operation and maintenance requirements.

https://ecology.wa.gov/adopted-rule-summary-table-operation-and-maintenan

Aquatic Invasive Plants grants funding program - FY2019 Final Offer List

For the Aquatic Invasive Plants grants funding program, this is the State Fiscal Year 2019 Final Offer List showing which projects will be offered funding and how much is being offered to them.

https://ecology.wa.gov/fy2019-aip-final-offer-list

Adopted Rule - Summary - Deferred UST Compliance Dates (WAC 173-360; WAC 173-360A) 07/17/18

This table summarizes the dates by which owners and operators of previously deferred underground storage tank systems installed on or before the effective date of the new rule, Chapter 173-360A WAC, need to comply with the requirements of the rule.

https://ecology.wa.gov/adopted-rule-summary-table-previously-deferred-ust

Ecology Water Quality Funded Aquatic Invasive Plants Grant Project Offer List for Fiscal Year 2020

List of applicants who were offered grants/loan through Ecology's Water Quality Funded Aquatic Invasive Plants Grant Project for Fiscal Year 2020

https://ecology.wa.gov/fy2020-aquatic-invasive-plant

Public Participation Plan Example

Example of a 3 pg. public participation plan for use by local governments when completing periodic reviews of their shoreline master programs.

https://ecology.wa.gov/public-participation-plan-example

Package A - Natural Attenuation Tool (Modules 1,2,3)

A calculation tool for demonstrating natural attenuation of groundwater is occurring and help predict when groundwater cleanup levels will be met under the Model Toxics Control Act.

https://ecology.wa.gov/pkganaturalattenuation

Ecology Water Quality Funded Aquatic Invasive Plants Grant Project Offer List for Fiscal Year 2021

List of applicants who were offered grants/loan through Ecology's Water Quality Funded Aquatic Invasive Plants Grant Project for Fiscal Year 2021

https://ecology.wa.gov/fy2021-aquatic-invasive-plant-grants-offer-list

Package B - Natural Attenuation (Modules 4,5,6)

A calculation tool for demonstrating natural attenuation of groundwater is occurring and help predict when groundwater cleanup levels will be met under the Model Toxics Control Act.

https://ecology.wa.gov/pkgbnaturalattenuation

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

Preliminary Draft - Summary - Deferred UST Compliance Dates (WAC 173-360; WAC 173-360A) 07/10/17

This table summarizes the dates by which owners and operators of previously deferred underground storage tank (UST) systems installed on or before the effective date of the UST rule would need to comply with the requirements of the preliminary draft of WAC 173-360A, Underground Storage Tank (UST) Regulations.

https://ecology.wa.gov/preliminary-draft-summary-prev-deferred-compli

Water Decontaminator

Ecology finds this water decontaminator is functionally equivalent to the catch basin insert for stormwater control. While this product does not meet Washington's water quality performance criteria, it may be used in retrofit or construction situations to provide some level of TSS removal for stormwater.

https://ecology.wa.gov/invreshpaoluccio

Summary Table: Operation and Maintenance Compliance Dates (WAC 173-360; WAC 173-360A) 01/24/18

This table summarizes the dates by which owners and operators of underground storage tanks (UST) systems installed on or before the effective date of the proposed rule, Chapter 173-360A WAC, would need to comply with the new operation and maintenance requirements specified in Part 4 of the rule.

https://ecology.wa.gov/summary-table-operation-and-maintenance-complianc

Summary Table: Previously Deferred UST System Compliance Dates (WAC 173-360; WAC 173-360A) 01/24/18

This table summarizes the dates by which owners and operators of previously deferred underground storage tank (UST) systems installed on or before the effective date of the proposed rule, Chapter 173-360A WAC, would need to comply with the requirements of the rule.

https://ecology.wa.gov/summary-table-previously-deferred-ust-system-comp

Splash Boxx Functional Equivalency

Ecology finds Splash Boxx treatment system is functionally equivalent to a Bioretention Facility (rain garden) when using approved Bioretention Soil Media for stormwater management and must adhere to the guidelines for Bioretention areas found in Best Management Practice T7.30.

https://ecology.wa.gov/splash-boxx

StrataCell and StrataVault Functional Equivalencies

Ecology finds the StrataCell and StrataVault systems are functionally equivalent to a bioretention facility when used for treating stormwater.

https://ecology.wa.gov/stratacell

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

Skamania County Cumulative Impacts Analysis and No Net Loss Report

An analysis of the cumulative impacts that may be expected to occur over time as the comprehensively updated SMP is implemented and this report addresses whether the SMP achieves no net loss of shoreline ecological functions.

https://ecology.wa.gov/skamania-county-cumulative-impacts-analysis-and-no

Washington State RiskMAP 2016 Strategic Plan

This 2016 Strategic Plan compliments the 2016 Business Plan by detailing State agency involvement and what resources each agency provides to the risk map program.

https://ecology.wa.gov/washington-state-riskmap-2016-strategic-plan

Hoquiam Cumulative Impacts Analysis and No Net Loss Report

This report characterizes shoreline conditions and provides a basis for revising SMP goals, policies, and regulations addresses whether the SMP achieves no net loss of shoreline ecological functions.

https://ecology.wa.gov/hoquiam-cumulative-impacts-analysis-and-no-net-los

Cosmopolis Cumulative Impacts and Analysis and No Net Loss Report

An analysis of the cumulative impacts that may be expected to occur over time as the comprehensively updated SMP is implemented and No Net Loss report ddresses whether the SMP achieves no net loss of shoreline ecological functions.

https://ecology.wa.gov/cosmopolis-cumulative-impacts-and-analysis-and-no

Rosalia Restoration Plan Appendix A: Map of Water Resource Inventory Areas and Conservation Districts

Map that is broken out into WRIA Boundaries and Conservation District for Whitman County

https://ecology.wa.gov/rosalia-restoration-plan-appendix-a-map-of-water

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

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

Mason County Inventory and Characterization Report Chapter 11: Shoreline Analysis Summary

This Chapter is in development but will discuss what should be considered a framework for subsequent evaluations.

https://ecology.wa.gov/mason-county-inventory-and-characterization-r-11

Sand and Gravel General Permit 2011 Antidegradation Plan

Tier II Antidegradation Plan. A Tier II analysis is required when new or expanded actions are expected to cause a measurable change in the quality of a receiving water that is of a higher quality than the criterion designated for that waterbody [WAC 173-201A-320(1)].

https://ecology.wa.gov/sandantideg081711

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

2025 Triennial Review Public Hearing

Public Event: April 15, 2025, 5:30 p.m., in Online Public Hearing
We invite you to attend this public workshop and hearing on the Triennial Review of Washington's surface water quality Standards.

https://ecology.wa.gov/events/wq/water-quality-standards-triennial-review/public-hearing-sept-9

Open house

Public Event: April 15, 2025, 5 p.m., in Seattle, WA and Online webinar
Drop-in online or in-person during this two-hour open house for food and a conversation about this cleanup site.

https://ecology.wa.gov/events/tcp/stewart-house/open-house

Organics management, Chapter 173-350 WAC

Comment Period: Jan. 14, 2025, 12 a.m. - March 31, 2025, 11:59 p.m.
We are starting the rulemaking process to update Washington's organic materials management regulations under Chapter 173-350 WAC Solid Waste Handling Standards.

https://ecology.wa.gov/events/rulemaking/173-350-wac-organics/173-350-wac-organics

June Local Government Sounding Board

Public Event: June 16, 2025, 1 p.m., in online webinar

https://ecology.wa.gov/events/rulemaking/173-26-and-173-27-wac-shoreline-management-act/junelgsb

July Local Government Sounding Board

Public Event: July 21, 2025, 1 p.m., in online webinar

https://ecology.wa.gov/events/rulemaking/173-26-and-173-27-wac-shoreline-management-act/julylgsb

October Local Government Sounding Board

Public Event: Oct. 20, 2025, 1 p.m., in Online webinar

https://ecology.wa.gov/events/rulemaking/173-26-and-173-27-wac-shoreline-management-act/octlgsb

November Local Government Sounding Board

Public Event: Nov. 17, 2025, 1 p.m., in Online webinar

https://ecology.wa.gov/events/rulemaking/173-26-and-173-27-wac-shoreline-management-act/novlgsb

May Local Government Sounding Board

Public Event: May 19, 2025, 1 p.m., in online webinar

https://ecology.wa.gov/events/rulemaking/173-26-and-173-27-wac-shoreline-management-act/maylgsb

December Local Government Sounding Board

Public Event: Dec. 15, 2025, 1 p.m., in Online webinar

https://ecology.wa.gov/events/rulemaking/173-26-and-173-27-wac-shoreline-management-act/declgsb-805383d98247e5e39a413ead50dc4fa6

Marine dissolved oxygen methods

Comment Period: March 25, 2025, 12 a.m. - May 22, 2025, 11:59 p.m.
We are accepting comments on the draft methods document that provides the information and process we must follow to calculate site-specific natural conditions criteria.

https://ecology.wa.gov/events/wq/performance-based-approach-methods-document/performance-based-approach-method

Hearing on marine dissolved oxygen methods

Public Event: May 15, 2025, 2 p.m., in Online webinar
We are accepting comments on the draft methods document that provides the information and process we must follow to calculate site-specific natural conditions criteria.

https://ecology.wa.gov/events/wq/performance-based-approach-methods-document/public-hearing

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 173-201A WAC (Human Health 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-hhc