Environmental Assessment

Our Environmental Assessment Program's mission is to measure, assess, and communicate environmental conditions in Washington. We work to improve the environment for current and future generations through innovative, excellent science and thriving partnerships.

We assess Washington's environment

Taking detailed field notes on a lake.

The Environmental Assessment Program is the science arm of Ecology. Our scientists measure and analyze environmental conditions. Quality data is our highest priority. We use this data to evaluate and communicate environmental threats and to guide the state’s environmental policy decisions.

We engage in new partnership opportunities whenever possible to collaborate on scientific projects to inform environmental policy. We collaborate with state, federal, tribal, and local partners — such as EPA, the state Salmon Recovery Funding Board, local conservation districts, and the state departments of Natural Resources, Health, and Agriculture.

Our scientific services

Precise lab work is integral to scientific studies.

Monitoring & assessing air, water, and soil

We monitor air, water, and soil. The data we collect gives us real-time information. We use it to develop computer models to better understand current conditions and emerging trends. Our science guides Ecology's policy decisions. We also contract our scientific services to other governmental entities.

Freshwater studies

Routine water sampling helps paint a picture of river health.
Marine water monitoring is important for protecting Puget Sound.
Monitoring wells provides data related to impacts from toxic groundwater.
Research on stormwater sources and outfalls guides pollution solutions.
Stream assessments inform us about water conditions.

Databases & maps

We have created specialized data collections, many with map interfaces.

Freshwater data

We maintain highly technical research and monitoring equipment, including this marine research boat.

 Marine data

Toxics data