Toxics Release Inventory (TRI) reports are required under the Emergency Planning and Community Right-to-Know Act (EPCRA). TRI provides annual data about chemical releases and pollution prevention ...

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 ...

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We have new requirements under the federal Energy Policy Act to develop an underground storage tank (UST) operator training program. We revised the state’s UST rule (Chapter 173-360A WAC) to include ...

Nonpoint water pollution is a leading threat to the health of rivers, lakes, wetlands, and marine water across the state. But what is nonpoint pollution? Nonpoint source pollution refers to the kind ...