Search Results - Washington State Department of Ecology

Completing SEPA review for "nonproject" proposals.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/guide-for-lead-agencies/non-project-proposals

SEPA Review and Commenting Guidance

SEPA guidance for document reviewers.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/review-commenting

Environmental impact statement process

Overview about Environmental Impact Statements process under SEPA.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/guide-for-lead-agencies/environmental-impact-statements

Small quantity generators (SQGs)

Learn about the benefits and rules for dangerous waste small quantity generators (SQGs).

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/generator-category/small-quantity-generators

Dam construction & modification guidance

We provide guidance and technical notes for dam construction and modification.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dam-construction-modification-guidance

Winery general permit

The winery general permit helps prevent possible pollution problems from winery wastewater.

https://ecology.wa.gov/regulations-permits/permits-certifications/winery-permit

Managing pharmaceutical waste

Learn how to manage waste pharmaceuticals properly to keep them out of the environment.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/pharmaceutical-waste

Guidance for contaminated water on construction sites

Information on how to manage contaminated water on construction sites.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/stormwater-permittee-guidance-resources/contaminated-water-on-construction-sites

Emerging stormwater treatment technologies (TAPE)

We certify stormwater treatment technologies that have undergone Technology Assessment Protocol.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/stormwater-permittee-guidance-resources/emerging-stormwater-treatment-technologies

Concentrated Animal Feeding Operation General Permit

Permit for operations with large numbers of livestock for long periods of time.

https://ecology.wa.gov/regulations-permits/permits-certifications/concentrated-animal-feeding-operation

Sulfur dioxide air quality designations

We’re deciding if parts of Washington don't meet national air quality standards for sulfur dioxide.

https://ecology.wa.gov/regulations-permits/plans-policies/areas-meeting-and-not-meeting-air-standards/sulfur-dioxide-designations

Policies and guidance for site cleanups

Policies and guidance interpret the MTCA cleanup law and help you clean up contaminated sites.

https://ecology.wa.gov/regulations-permits/plans-policies/toxics-cleanup-policies

SEPA checklist guidance, Section B: Environmental health

Guidance for Environmental Health section of Part B for SEPA environmental checklist.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-7-environmental-health

Safer products for businesses

Learn how your business can find and purchase less toxic chemicals and products.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/safer-alternatives/safer-products-for-businesses

EPA Vessel General Permit

Find out about the EPA Vessel General Permit and tap into helpful resources.

https://ecology.wa.gov/regulations-permits/permits-certifications/epa-vessel-general-permit-graywater

Acronyms & glossary for the Toxics Cleanup Program

We have a list of acronyms and terms commonly used in contaminated site cleanup work.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/toxic-cleanup-acronyms

Primary response contractors for spill cleanup

We approve primary response contractors to allow them to be cited in industry oil plans.

https://ecology.wa.gov/regulations-permits/plans-policies/contingency-planning-for-oil-industry/primary-response-contractors

Manuals & procedures for accredited labs

Download the procedure manual, and find tips and tools for accredited environmental labs.

https://ecology.wa.gov/regulations-permits/permits-certifications/laboratory-accreditation/manual-and-procedures-for-accredited-laboratories

Municipal stormwater general permits

This permit covers urban areas that collect stormwater runoff in public storm sewer systems.

https://ecology.wa.gov/regulations-permits/permits-certifications/stormwater-general-permits/municipal-stormwater-general-permits

Shellfish aquaculture 401 certification

We modified our certification process for shellfish growers because of new federal requirements.

https://ecology.wa.gov/regulations-permits/permits-certifications/401-water-quality-certification/shellfish-aquaculture

Pollution prevention assistance (PPA)

Businesses can get free, non-regulatory pollution prevention help from local PPA specialists.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/pollution-prevention-services/pollution-prevention-assistance

Beneficial Use Determination registry

List of all pending or approved beneficial use determinations.

https://ecology.wa.gov/regulations-permits/permits-certifications/solid-waste-permits/beneficial-use-determinations/beneficial-use-determinations-registry

Nicotine and cannabis waste

Learn how your business can properly handle nicotine, vape, and cannabis waste.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/nicotine-and-cannabis-waste

Solvent-contaminated wipes

Follow these best management practices for solvent-contaminated wipes.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/solvent-wipes

Pharmaceutical waste codes

Find common waste codes for pharmaceutical waste.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/pharmaceutical-waste/rcra-waste-codes

Accumulation

Learn more about on-site dangerous waste accumulation time limits and restrictions.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/accumulation

Step five: Check Washington state-only criteria

Learn how to determine if your waste meets Washington state-only dangerous waste criteria.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/dangerous-waste-basics/designation/check-washington-state-only-criteria

Managing solar panel waste

Learn how businesses can properly manage, recycle, or dispose of end-of-life solar panels.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/dangerous-waste-guidance/common-dangerous-waste/solar-panel-waste

Small cosmetics manufacturer certification subsidy program

Small cosmetics manufacturers can apply for financial support to reformulate and certify their products.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/safer-alternatives/safer-chemicals-for-manufacturers/cosmetics-certification-subsidy-program

CLARC guidance

Use these guidance documents in combination with CLARC to establish cleanup levels.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/contamination-cleanup-tools/clarc/guidance

Frequently flooded areas: Critical Areas Ordinance

Frequently flooded areas are covered by Critical Areas Ordinances promoting safety from floods.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/guidance-for-floodplains-critical-areas-ordinanc

Cleanup Levels and Risk Calculation (CLARC)

CLARC's resources help you set contaminated site cleanup levels that comply with Washington law.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/contamination-cleanup-tools/clarc

Western Washington Hydrology Model

Western WA Hydrology Model models most hydrologic conditions for stormwater control and design.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/stormwater-permittee-guidance-resources/stormwater-manuals/western-washington-hydrology-model

SEPA Guide for lead agencies

SEPA guidance for lead agencies.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/guide-for-lead-agencies

SEPA guide for project applicants

SEPA guidance for private proponents.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/guide-for-project-applicants

SEPA checklist guidance, Section B: Historic & cultural preservation

Guidance for historic & cultural preservation section in SEPA environmental checklist.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-checklist-guidance/sepa-checklist-section-b-environmental-elements/environmental-elements-13-historic-cultural-p

Certification information

We certify wastewater treatment plant operators to ensure that Washington’s waters are protected.

https://ecology.wa.gov/regulations-permits/permits-certifications/wastewater-operator-certification/certification-information

Plan to control nonpoint sources of pollution

The Nonpoint Plan outlines our approach for addressing water quality impacts from nonpoint pollution.

https://ecology.wa.gov/regulations-permits/plans-policies/plan-to-control-nonpoint-sources-of-pollution

Programmatic environmental impact statements

Overview of broad environmental studies for clean energy projects.

https://ecology.wa.gov/regulations-permits/sepa/clean-energy/programmatic-eis

Products required to meet recycled content minimums

This page explains which products are subject to the law and provides compliance information.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/recycled-content-products

Financial responsibility for oil spills

Tank vessels are required to have financial responsibility to pay for costs & damages from spills.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/financial-responsibility-for-oil-spills

Pollution prevention (P2)

Learn about pollution prevention (P2) and how you can apply best practices to your business.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/pollution-prevention

SEPA Guidance on Categorical Exemptions

Guidance on SEPA exemptions.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/guide-for-lead-agencies/exemptions

CLARC data tables and other technical information

Download CLARC data tables for information that helps site managers determine cleanup levels.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/contamination-cleanup-tools/clarc/data-tables

Goldendale Energy Storage Project

Environmental review and permitting for the proposed Goldendale Energy Storage Project.

https://ecology.wa.gov/regulations-permits/permits-certifications/industrial-facilities-permits/goldendale-energy

Combined sewer overflows

We're working to control combined sewer overflows to keep water clean.

https://ecology.wa.gov/regulations-permits/permits-certifications/combined-sewer-overflows

Clean Water Act: Section 401 Water Quality Certifications

Under the Clean Water Act, we help make sure projects, actions, and activities don't harm state waters.

https://ecology.wa.gov/regulations-permits/permits-certifications/401-water-quality-certification

Equivalent stormwater manuals for municipal stormwater permits

We provide information for municipal stormwater permittees about equivalent stormwater manuals for Phase I and both the Eastern and Western Washington Phase II municipal stormwater permits.

https://ecology.wa.gov/regulations-permits/guidance-technical-assistance/stormwater-permittee-guidance-resources/stormwater-manuals/equivalent-stormwater-manuals-for-municipal-stormw

SEPA Frequently Asked Questions

SEPA questions and answers.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/sepa-faq

Lead agency determination and responsibilities

SEPA guidance for determining lead agency and evaluating the proposal.

https://ecology.wa.gov/regulations-permits/sepa/environmental-review/sepa-guidance/guide-for-lead-agencies/lead-agency-determination-and-responsibilities