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EIM Data Analysis Tool (EDAT) is an analysis tool for Model Toxics Control Act (MTCA) practitioners and other contamination cleanup professionals. It compares Washington State environmental monitoring ...

You can use an address to look up your watershed, also known as a Water Resource Inventory Area (WRIA). We typically study and regulate water resources by WRIAs. There are 62 WRIAs in Washington.

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 ...

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 ...

Ecology is responsible for regulating chemical and hazardous waste cleanup under the Resource Conservation & Recovery Act. Although it is a federal law, we have a charter to enforce it in our state.

SEPA guidance for determining lead agency and evaluating the proposal. Under the State Environmental Policy Act (SEPA), most new proposals are reviewed by a designated “lead agency.” While this is ...

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 ...

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 ...

How to operate your wood stove more efficiently (video). An air quality burn ban is usually called during colder months when air pollution from wood smoke gets unhealthy. This kind of burn ban does ...