Our health care team assists healthcare facilities throughout Washington better understand how to manage their pharmaceutical wastes and comply with the Dangerous Waste Regulations. Visit our ...

In Washington, we have a powerful law that helps state and local agencies identify potential environmental impacts that might result from proposed projects and decisions. This law is called the State ...

Licensed well operators and trainees can enter data for resource protection well reports directly on our website, using the well report gateway. The information will be in our well report database ...

We monitor air quality, especially for criteria air pollutants in areas at risk of nonattainment. Nonattainment is a technical term that means an area has too much of a specific air pollutant and does ...

Our long-term river and stream monitoring team collects long-term data to track trends in stream health and contribute to watershed studies and water quality improvement plans. Our water quality ...

If your business emits air pollution, you will most likely be regulated by us or your local clean air agency and have to report your emissions. We track air pollutants, toxics, and greenhouse gas ...

We are committed to providing equal opportunities, resources, and access to all Washingtonians, regardless of abilities or circumstances.

Our mission is to keep Washington waters clean. Use this site to find out if a lake, stream, or marine beach near you is healthy or polluted. Learn about water cleanup plans and how we’re addressing ...

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 ...

As a subset of commercial enterprises, mobile businesses have unique challenges related to stormwater and pollution prevention that will be better understood by a focused study. In this project, King ...

Find a grant or loan and details about the application process, eligibility, types of projects, timelines, requirements, and other information. Click on one of the links below.

SEPA guidance on conducting programmatic or "nonproject" proposals. Unless they are specifically exempted, proposals such as plans, ordinances, programs, and administrative rule actions must be ...