The maps display places of use, water bodies, the type of water rights associated with a property, and “water device points” ...

In this edition of Behind the Scenes at the Nuclear Waste Program, we talk with Heather Hansen, our Resource Center Business ...

The draft permit we proposed to reissue to Seashore Villa Mobile Home Park authorizes the discharge of treated domestic wastewater into Outer Budd Inlet. You can view the documents at Seashore Villa ...

The Nonpoint Plan outlines the approach to addressing water quality impacts from nonpoint sources. The Plan is required by the Clean Water Act and ensures funding that allows us and our partners to ...

The draft permit we proposed to reissue to Ilwaco Wastewater Treatment Plant authorizes the discharge of treated domestic wastewater into the Columbia River-Baker Bay at RM 2. You can view the ...

We invite you to review and comment on the draft State Waste Discharge Permit for Specialty Minerals, Inc. in Longview, WA from May 27 – July 1, 2025.

As we continue to celebrate American Wetlands Month, we encourage you to look at the plants in your area. One way to tell whether you're looking at a wetland is by identifying the plants. Wetlands ...

Blue-green algal bloom on a lake in Washington. Spring marks the start of algae season in Washington’s lakes and rivers. While harmful algal blooms (also known as cyanobacteria) are more common in ...

We propose to approve Sila Nanotechnologies' air quality notice of construction (NOC) application. We will hold a public comment period if one is requested. Sila Nanotechnologies submitted a notice of ...

Provide your feedback on the state's plan to address sources of nonpoint pollution Riparian plantings like these grow into trees and other vegetation that help filter pollutants, provide shade that ...