Ecology, local clean air agencies, and Tribes can restrict indoor and outdoor burning under certain conditions. Air quality burn bans protect people when the air is unhealthy. Fire safety burn bans ...

Rulemaking is when we propose and adopt rules to protect the environment and public health. The Washington State Legislature guides all state rulemaking through a law known as the Administrative ...

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 ...

All laboratories seeking environmental accreditation must provide a quality assurance manual for review and approval by our auditors These resources, including a handy checklist, can help you write or ...

Solid waste incinerators (excluding hog fuel burners and crematoria facilities) Municipal waste landfills Special incinerator ash landfills or monofills Inert waste and demolition waste landfills All ...

We also provide educational resources to property owners who want to drill a new well, maintain a well, or close down (decommission) an unused well. Well drillers and property owners have the ...

Rainwater collection, including the use of rain barrels, has become more popular as a supplemental source of water. In 2009, we issued a rainwater use interpretive policy, which clarifies that you may ...

We invest funds from the Volkswagen settlement and our Clean Diesel program in projects that reduce emissions from transportation. These investments help improve air quality and people's health. They ...

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 refinery began operating in 1954 and has about 285 employees and 200 contractors that work on the site. The facility processes crude oil into a variety of petroleum products. At full production, ...

Every year we prepare reports and analyses for the Legislature to support our work on developing long-term water supplies in Eastern Washington. These reports aid water managers in making decisions on ...

Governmental agencies use the SEPA environmental checklist to help determine whether a proposal will have significant adverse environmental impacts. The information helps identify what measures can be ...