Large oil-handling facilities that transfer oil over waters of the state. Hazardous liquids pipelines (oil pipelines). Tank vessels regardless of gross tonnage. Fishing and cargo vessels of 300 gross ...

We value your input and want to hear from you as we continue to implement the Climate Commitment Act (CCA) across Washington state. Check out our current and upcoming opportunities to give your input, ...

Seattle Public Utilities is monitoring the potential for street sweeping to reduce the amount of tire wear pollutants, including 6PPD-quinone (6PPDQ), on the roadway. This new information will help ...

The Puget Sound region includes 2,800 square miles of inland marine waters, including 549 streams, rivers, and lakes impaired by poor water quality. More than 60 percent of water pollution comes from ...

Why public service? Working for Ecology means working for the people of Washington. It’s a different environment than most private sector jobs. We’re not here to make a profit, we’re not out to crush ...

Consolidation and capping Consolidation and capping can be an excellent option for sites with multiple mine-waste piles. If your property has room to designate an area specifically for capped ...

We regulate wetlands in Washington state regardless of federal jurisdiction. Wetlands are protected and managed through multiple state laws, including the state Water Pollution Control Act and the ...

Use one of our model remedies if: Your property contains 2,000 cubic yards or less of mine waste (soil, waste rock, or tailings) Metals are the only suspected contaminants Sediment, surface water, and ...

Douglas County PUD, 1151 Valley Mall Parkway, East Wenatchee has applied for a new water quality State Waste Discharge Permit for Lincoln Rock Hydrogen Facility located at 174 Hydrogen Way, East ...

The Chehalis Basin is a 2,700 square-mile river drainage system located in Southwest Washington along the Chehalis River and its tributaries. It is the second-largest river basin in Washington, ...