Dangerous substances can spill to land, water, or air. The sooner a spill is reported, the sooner we can respond. Failure to report a spill you're responsible for could result in penalties.

Our team of scientists collects data on sediments and invertebrate communities found at the bottom of Puget Sound, to document condition and change over time. Why do we monitor the bottom of Puget ...

Old orchards in Central Washington left lead and arsenic in soil. Builders must check land history, test soil, cleanup ...

Each of us has the ability to reduce noise in our community by being aware of the noise we make as residents, workers, or as businesses. Noise pollution is regulated by local governments. We do not ...

Treated wood is a dangerous waste. Businesses that handle treated wood waste — most commonly construction and demolition sites — can often manage these materials according to exemptions to the ...

Climate change increases wildfire risks through rising temperatures, which reduces winter snowpack, and produces hotter and drier summers. This directly impacts the number and severity of wildfires ...

We monitor the air in many places in Washington. Monitoring stations measure air quality to make sure areas have healthy air and meet national air quality standards. We also use this monitoring ...

If your facility generates dangerous waste, you must follow label requirements properly. Labeling is one of the most common compliance violations and the easiest to avoid. Good labeling will keep your ...

Phases out the use of copper in vehicle brakes and requires manufacturers to certify that brakes comply with the law. Regulates lead, cadmium, phthalates, and other chemicals in children's products.

It is far less expensive to prevent an oil spill than it is to clean one up. No spill is acceptable — once oil is released into the environment, harmful consequences have already occurred. All oil ...

Have a wetland-related question? Find our regional wetland and subject-specific wetland contacts.

Together with the Washington Department of Health, we regulate municipal water suppliers. As the state's water rights manager, we oversee municipalities' water rights, how much water they have, and ...