The Water Quality Assessment has millions of data points on rivers, streams, lakes, and marine waters across Washington state.

Toxic chemicals in consumer products can escape into our homes, workplaces, and schools, and eventually make their way to our ...

We invite you to comment on our latest draft report for Cycle 2.

We propose to approve Tidewater's Snake River Terminal air quality notice of construction (NOC) application. We will hold a public comment period if one is requested. Tidewater submitted a notice of ...

We propose to approve Imerys Quincy Plant's air quality notice of construction (NOC) application. We will hold a public comment period if one is requested. Imerys Filtration Minerals submitted a ...

Thanks to our brand-new Water Right Application Portal, water right applicants can apply for new water rights from their ...

A unique environmental program in Spokane is helping refugees and immigrants build connections with the environment and their ...

The Aberdeen-Hoquiam project also supports the long-term Chehalis Basin Strategy which aims to improve the health and resilience of local communities in the Chehalis River basin by reducing ...

We review and approve oil spill contingency plans for: ...

About every five years we review conditions at sites where some contamination remains, to make sure the cleanup is still effective. We are providing an opportunity for public review and comment on the ...

We propose to rescind Cardinal Glass's Prevention of Significant Deterioration (PSD) permit. Cardinal Glass operates a flat glass manufacturing plant located near the intersection of Avery Road and ...

As Washington’s environmental protection agency, we are deeply committed to protecting, preserving, and enhancing Washington’s environment for current and future generations. Through innovative ...