agr.wa.gov

Air Quality

Clean air is vital for everyone. We manage smoke, vehicle pollution, industrial emissions, and other pollutants so communities have healthy air to breathe. We do this through permits, regulations, and ...
agr.wa.gov

Rulemaking at Ecology

This is the list of rules we are authorized to implement. They are sorted by topic. Each rule links to official rule language on the Washington State Legislature's Code Reviser's web site. The Office ...
Washington State Department of Ecology

Major habitat restoration project completed on Lower Peshastin Creek

The Lower Peshastin Creek Restoration Project cleaned up contamination, reconnected the creek to its historical channel, and ...
agr.wa.gov

Environmental report analyzes impacts of proposed Chehalis River flood reduction project

A revised draft environmental impact statement looks at the potential impacts to fish, habitat, water quality and nearby communities from a proposed project to reduce flood damage in the Chehalis ...
agr.wa.gov

Chapter 173-423 WAC – Clean Vehicles Program

Ecology is considering amendments to Chapter 173-423 WAC, Washington’s Clean Vehicles Program rule. Washington law (RCW 70A.30.010) requires Ecology to adopt certain California regulations to maintain ...
agr.wa.gov

Litter pickup

In 2024, litter-pickup programs we funded collected more than 5.2 million pounds (2,632 tons) of litter and cleaned more than 18,000 miles of road, statewide. See how much litter crews picked up in ...
Washington State Department of Ecology

Taking steps to tackle nutrient pollution and harmful algal blooms

We are starting two rulemakings to update Washington’s water quality standards to help address freshwater nutrient pollution and the harmful, toxic algal blooms that can result from it.
agr.wa.gov

Chapter 173-201A WAC – Harmful Algal Blooms

Ecology is considering adding new freshwater recreational criteria to Chapter 173-201A WAC, Water quality standards in surface waters of the State of Washington. The criteria are for toxins produced ...
Washington State Department of Ecology

6PPD State of the Science

This event is scheduled for two days: Dec. 9 and Dec. 10, 2025 from 12 p.m. to 4 p.m. To see the time and schedule of individual speakers, here is a detailed daily agenda. The forum will follow this ...
agr.wa.gov

Bring your own bag – avoid a fee increase on store-bought bags

Starting Jan. 1, 2026, shoppers will pay 12 cents, up from 8 cents, for each reusable plastic bag purchased from Washington retailers and restaurants Beginning January 1, shoppers will see a 4-cent ...
agr.wa.gov

Public involvement

Public comments are accepted over a 30-, 45-, or 60-day period. During that time, you can share your input with us about specific changes in the permits we regulate. We review all comments and then ...