Conditionally excluded state-only dangerous waste. Solid only (not liquid, aqueous, or gaseous). Must be fully designated before it can be identified as special waste. Special wastes pose a relatively ...

Our team receives many questions regarding the hydrofluorocarbons (HFCs) rule, restrictions, and requirements. To best support the transition away from HFCs, we've consolidated educational resources ...

Our Reading Your Water Meter guidance uses images to explain terms and provides instruction on how to read a meter. Telemetry Telemetered meters can save time and money while also helping to ensure ...

(Preferred) Use an electronic spreadsheet, such as Microsoft Excel or Google Sheets, to record data on your device. This will make it easier to submit data through our online portal. (Optional) Use a ...

Drips can end up in the water when fuel drips off the nozzle, splashes out of the tank, or discharges out of the vent from over-filling or expansion. Small spills add up to big problems. Even after ...

The Pend Oreille Mine, located in northeast Washington approximately two miles north of Metaline Falls, began underground mining for lead and zinc in 1952. The mine operated intermittently and was ...

Species of salmon, steelhead, and bull trout are endangered in much of the Columbia River Basin. Our Office of Columbia River is working to enhance and protect habitat, provide fish passage, and to ...

Are you a new owner of an established site or getting ready to install new tanks at an existing or new site? Here’s what you need to know to get started and understand your responsibilities. If you ...

A federal or state legal standard outside the immediate purview of the Model Toxics Control Act that must be met (applicable) or should be met (relevant and appropriate) when cleaning up a site. An ...

Protecting and restoring Puget Sound is a priority for us. Our scientists and researchers developed long-term monitoring programs to track the health of Puget Sound and have been doing so since the ...

Rayonier mill in operation, 1990s. We are working toward a safer, cleaner waterfront and harbor in Port Angeles with the Rayonier Mill cleanup. It is one of several cleanup projects near Port Angeles ...

Dog poop is more than just an icky nuisance. It’s a health risk to dogs and people, especially children. It’s full of bacteria that can make people sick. And it’s a source of water pollution. When it ...