Washingtonians will begin to see fewer plastic bags littering the state’s roadsides, parks, and streams beginning Oct. 1 when the statewide plastic bag ban goes into effect. The bag ban prohibits the ...

The easiest way to avoid food waste is to not overbuy. Proper storage of what you do purchase is another way to prevent food waste. Home composting is an excellent option for what can't be used or ...

We propose updates to the human health criteria in Table 240 of WAC 173-201A-240, Toxic substances, to: Replace 143 state-adopted human health criteria for 73 pollutants that the Environmental ...

Puget Sound is critical to our environment, culture, and economy. About two-thirds of the state’s population lives in the Puget Sound region. Our nation’s second largest marine estuary faces a number ...

If you are a used oil processor or re-refiner, there are rules and requirements you need to follow. Learn about permits, site identification numbers, and other resources to help you properly handle ...

This index identifies the sections of the SEPA rules and statute that provide information about a specific topic. Selecting a letter in the alphabetical list below will take you to that part of the ...

This facility makes hydrogen peroxide. It currently sends (discharges) wastewater to the Three Rivers Regional Wastewater treatment plant and Nippon Dynawave pulp and paper mill for treatment. Both ...

Ocean acidification is a global problem with local impacts. The impact of greenhouse gases on rising temperatures, coupled with excess nutrients from nitrogen and carbon, can hinder healthy aquatic ...

Find a moderate risk waste disposal site in your county. Accepts: Household hazardous waste. Does not accept wastes from business unless it is a scheduled small business collection event. Check with ...

We work to safely manage solid, hazardous, and nuclear waste and reduce toxic chemicals in the products you use. We regulate the threats found in everyday household products and help businesses ...

Under the State Environmental Policy Act (SEPA), project proposals are reviewed by a designated “lead agency.” While this is typically a city or county government, other entities such as ports, ...

The list of rules below are categorized by topical areas. These links will take you to the existing rule language on the Washington State Legislature's Code Reviser's web page. The Office of the Code ...