Search Results - Washington State Department of Ecology

Avoiding & minimizing wetland impacts

When designing a project, you need to show how you plan to avoid and minimize impacts to wetlands.

https://ecology.wa.gov/water-shorelines/wetlands/mitigation/avoidance-and-minimization

Functions & values of wetlands

We regulate wetlands to protect the many functions they perform to support humans and other species.

https://ecology.wa.gov/water-shorelines/wetlands/education-training/functions-values-of-wetlands

Rainwater collection

You don't need a water right permit to use water collected from your rooftop.

https://ecology.wa.gov/water-shorelines/water-supply/water-recovery-solutions/rainwater-collection

Contaminants of Emerging Concern in wastewater

We are learning how pharmaceuticals and personal care products may be affecting water.

https://ecology.wa.gov/water-shorelines/water-quality/wastewater/contaminants-of-emerging-concern

Total Maximum Daily Load process

The TMDL process cleans up polluted water so it meets state water quality standards.

https://ecology.wa.gov/water-shorelines/water-quality/water-improvement/total-maximum-daily-load-process

Watershed plan archive

We are providing an archive of documents related to the Watershed Planning Act.

https://ecology.wa.gov/water-shorelines/water-supply/improving-streamflows/watershed-plan-archive

Wetland delineation resources

Use only approved methods and guidance to delineate wetlands on your property.

https://ecology.wa.gov/water-shorelines/wetlands/tools-resources/delineation-resources

Hiring a qualified wetland professional

Do you need to hire a wetland professional? We provide guidance on now to find and select one.

https://ecology.wa.gov/water-shorelines/wetlands/tools-resources/hiring-a-qualified-wetland-professional

Credits & debits for wetland mitigation

Learn about calculating credits and debits for compensatory mitigation.

https://ecology.wa.gov/water-shorelines/wetlands/tools-resources/credit-debit-method

Ecology v Acquavella

The Superior Court has issued a final decree on the historic adjudication in the Yakima River Basin.

https://ecology.wa.gov/water-shorelines/water-supply/water-rights/adjudications/ecology-v-acquavella

Continuing education for well drillers

Continuing education is required for a Washington state well operator's license.

https://ecology.wa.gov/water-shorelines/water-supply/wells/information-for-drillers/continuing-education

Skagit Hamilton Lyman Coalition SMP: comprehensive and periodic review update

Public comment now closed on the Skagit Co. Coalition SMP comprehensive/periodic review update.

https://ecology.wa.gov/water-shorelines/shoreline-coastal-management/shoreline-coastal-planning/state-approved-shoreline-master-programs/skagit-hamilton-lyman-coalition

Find a moderate risk waste disposal site

Find a moderate risk waste site in your county.

https://ecology.wa.gov/waste-toxics/community-waste-toxics/household-hazardous-waste-mrw/find-a-household-hazardous-waste-site

Recycling Development Center

The new Recycling Development Center is tasked with bolstering Washington's recycling markets.

https://ecology.wa.gov/waste-toxics/reducing-recycling-waste/strategic-policy-and-planning/recycling-development-center

Learn about biosolids

Biosolids are a nutrient-rich product of Washington’s wastewater treatment systems.

https://ecology.wa.gov/waste-toxics/reducing-recycling-waste/biosolids/learn-about

Green chemistry for K-12 teaching

Integrate green chemistry into your curriculum for K-12 students.

https://ecology.wa.gov/waste-toxics/reducing-toxic-chemicals/green-chemistry/green-chemistry-for-k-12-classroom

Per- and polyfluoroalkyl substances (PFAS)

We work to prevent PFAS compounds from impacting human health and the environment.

https://ecology.wa.gov/waste-toxics/reducing-toxic-chemicals/addressing-priority-toxic-chemicals/pfas

PCB light replacement in schools

Learn about our PCB light replacement program in schools and apply to participate.

https://ecology.wa.gov/waste-toxics/reducing-toxic-chemicals/product-replacement-program/pcb-lights

Children's Safe Products Act (CSPA)

The Children's Safe Products Act restricts some toxic chemicals and requires reporting on others.

https://ecology.wa.gov/waste-toxics/reducing-toxic-chemicals/washingtons-toxics-in-products-laws/childrens-safe-products-act

Hanford tank waste management

Hanford's underground tank waste will be retrieved and made into glass at the Waste Treatment Plant.

https://ecology.wa.gov/waste-toxics/nuclear-waste/hanford-cleanup/tank-waste-management

Organics Management Law

This law sets up Washington to achieve goals for organics disposal reduction and edible food rescue.

https://ecology.wa.gov/waste-toxics/reducing-recycling-waste/organics-and-food-waste/2022-organics-management-law

Tank waste monitoring and closure

We oversee the safe management, retrieval and closure of the waste in Hanford's underground tanks.

https://ecology.wa.gov/waste-toxics/nuclear-waste/hanford-cleanup/tank-waste-management/tank-monitoring-closure

Recycled content minimums

Producers must annually report by April 1 on the previous year’s minimum post-consumer recycled content requirements, documenting the percentage of recycled content in each product category.

https://ecology.wa.gov/waste-toxics/reducing-recycling-waste/plastics/2021-plastic-pollution-laws/recycled-content-minimums

Model Toxics Control Act

The Model Toxics Control Act (MTCA) is Washington's environmental cleanup law.

https://ecology.wa.gov/spills-cleanup/contamination-cleanup/rules-directing-our-cleanup-work/model-toxics-control-act

Working with the Voluntary Cleanup Program

What to expect when working with the Voluntary Cleanup Program to clean up a contaminated site.

https://ecology.wa.gov/spills-cleanup/contamination-cleanup/voluntary-cleanup-program/working-with-vcp

Responding to oil and hazardous materials spills

Our response team is available 24/7 to launch a rapid, aggressive, and well-coordinated response.

https://ecology.wa.gov/spills-cleanup/spills/spill-preparedness-response/responding-to-spill-incidents

Affordable housing-related cleanup

We’re making it easier for once-contaminated properties to be redeveloped into affordable housing.

https://ecology.wa.gov/spills-cleanup/contamination-cleanup/brownfields/affordable-housing

Cleaning up for a healthier Puget Sound

Cleanup and restoration makes Puget Sound a healthier place to live, work, and play.

https://ecology.wa.gov/spills-cleanup/contamination-cleanup/cleanup-sites/puget-sound

Latest information on the Lower Duwamish

Get the latest updates on our efforts to control sources of pollution in the Lower Duwamish.

https://ecology.wa.gov/spills-cleanup/contamination-cleanup/cleanup-sites/lower-duwamish-waterway/latest-information

Spill incidents

A list of current and past spill incidents.

https://ecology.wa.gov/spills-cleanup/spills/spill-preparedness-response/responding-to-spill-incidents/spill-incidents

Site history

We're cleaning up decades of industrial contamination in the Lower Duwamish Waterway.

https://ecology.wa.gov/spills-cleanup/contamination-cleanup/cleanup-sites/lower-duwamish-waterway/site-history

Source control

Source control is tracing contamination to its source, then preventing it from reaching waterways.

https://ecology.wa.gov/spills-cleanup/contamination-cleanup/cleanup-sites/lower-duwamish-waterway/source-control

Fidalgo & Padilla baywide cleanups, Anacortes

Fidalgo and Padilla Bay – learn about these priority bay shoreline and sediment cleanups.

https://ecology.wa.gov/spills-cleanup/contamination-cleanup/cleanup-sites/puget-sound/fidalgo-padilla-baywide

Port Gamble Bay and Mill Site

Major cleanup combined with restoration makes Port Gamble Bay a healthier place to work and play

https://ecology.wa.gov/spills-cleanup/contamination-cleanup/cleanup-sites/puget-sound/port-gamble-baywide

Habitat preservation and restoration in Port Gamble Bay

Habitat preservation and restoration in Port Gamble Bay improves the environment and recreation

https://ecology.wa.gov/spills-cleanup/contamination-cleanup/cleanup-sites/puget-sound/port-gamble-baywide/other-habitat-preservation-restoration

Environmental justice at Ecology

Prioritizing environmental justice in our work and our decisions.

https://ecology.wa.gov/about-us/who-we-are/environmental-justice/prioritizing-ej

Voluntary Stewardship Program

Find electronic data and other information supporting counties planning under Washington's VSP.

https://ecology.wa.gov/about-us/accountability-transparency/partnerships-committees/voluntary-stewardship-program

Information for water conservancy board members

We provide training, operations, and process information for water conservancy board members.

https://ecology.wa.gov/about-us/accountability-transparency/partnerships-committees/water-conservancy-boards

Environmental Justice Assessments

Ecology will conduct an Environmental Justice Assessment when we're planning a significant action.

https://ecology.wa.gov/about-us/who-we-are/environmental-justice/heal/environmental-justice-assessments

Environmental justice in budget & funding

We integrate environmental justice and community engagement into our budget and funding.

https://ecology.wa.gov/about-us/who-we-are/environmental-justice/heal/budget-equity

Wetland resources for VSP planning

Find mapping resources for wetlands to assist with planning under the Voluntary Stewardship Program.

https://ecology.wa.gov/about-us/accountability-transparency/partnerships-committees/voluntary-stewardship-program/wetland-resources

2025 National Coastal Wetlands Conservation Grant Awards

2025 National Coastal Wetlands Conservation Grants fund critical wetland conservation projects.

https://ecology.wa.gov/about-us/payments-contracts-grants/grants-loans/find-a-grant-or-loan/wetlands-conservation-grants/wetlands-conservation-grant-awards

2023 Waste Not Washington School Awards

In 2023, the Waste Not Washington School Awards awarded $130,091.61 to Washington schools.

https://ecology.wa.gov/about-us/who-we-are/our-programs/solid-waste-management/waste-not-washington-school-awards/2023-school-awards

Funded Oversight Remedial Action Grants

See Oversight Remedial Action Grants funded in the current and recent budgets.

https://ecology.wa.gov/about-us/payments-contracts-grants/grants-loans/find-a-grant-or-loan/oversight-remedial-action-grants-loans/funded-remedial-action-grants

2022 Waste Not Washington School Awards

Waste Not Washington School Awards fund school programs for waste reduction and recycling.

https://ecology.wa.gov/about-us/who-we-are/our-programs/solid-waste-management/waste-not-washington-school-awards/2022-school-awards

Waste Not Washington School Award Winners

Winners of our Waste Not Washington School Awards

https://ecology.wa.gov/about-us/who-we-are/our-programs/solid-waste-management/waste-not-washington-school-awards/2021-school-awards

Seawater intrusion

Some coastal water wells in Washington are now unusable because of seawater intrusion. Read more about this.

https://ecology.wa.gov/water-shorelines/water-supply/water-rights/seawater-intrusion

2021-2023 Shoreline Master Program funded competitive projects

2021-2023 Shoreline Master program competitive grant pilot program funded projects.

https://ecology.wa.gov/about-us/payments-contracts-grants/grants-loans/find-a-grant-or-loan/shoreline-planning-competitive-grants/funded-projects

South Lake Union cleanup

We are cleaning up contamination at 10 sites in Seattle's South Lake Union neighborhood.

https://ecology.wa.gov/spills-cleanup/contamination-cleanup/cleanup-sites/south-lake-union

Zosel Dam History

Zosel Dam. which maintains water levels on Osoyoos Lake, is the only dam we own and operate.

https://ecology.wa.gov/water-shorelines/water-supply/dams/info-for-the-public/dams-we-regulate/zosel-dam/zosel-dam-history