Environmental Assessment Program

Environmental Assessment Program photo

We Assess Washington's Environment

Freshwater Monitoring includes rivers, streams, and lakes, as well as the plants and animals that live there.

Puget Sound and Coastal Monitoring assesses our marine resources, including Marine Water Quality, Marine Sediments, and marine swimming beaches through the BEACH Program.

Groundwater Assessment evaluates water in the subsurface.

Stormwater Monitoring and Runoff are tested for possible pollutants, including Stormwater Monitoring for Toxics.

Soil, sediment, water, fish tissue, consumer products, and more are tested for chemicals of concern by the Toxics Studies Unit and the Marine Sediment Monitoring Team.

Air quality is tested by Ecology's Air Quality Program and Local Clean Air Agencies.

What We Learn: Data and Indicators

The Environmental Information Management system contains most of our data.

The Coastal Atlas offers map-based data and photos of Washington's coastlines and beaches. It includes information on lakes and swimming beaches.

Environmental Indicators show environmental status and trends in clear and graphic ways.

How We Work: Monitoring and Modeling

What We Measure: Parameters and Analytes describes some of the measurements made by the Environmental Assessment Program's scientists.

Our Manchester Environmental Laboratory analyzes environmental samples under rigorous protocols and quality control.

Computer Modeling uses data to picture status and trends in Washington's Environment. We offer tools and resources to assist others in modeling, as well.

We Assure Quality

Quality Assurance holds the Standard Operating Procedures for the agency.

Laboratory Accreditation is also our responsibility. Laboratory Manuals and Procedures for accreditation are available.

See also specialized agency information for Scientists and Teachers and Students.


Updated website:
Groundwater Assessment

Ecology Video: "Tutorial: Environmental Information Management (EIM) Database Tools for Groundwater Professionals" Part 1 of 4 (18:32)

Groundwater Report Finder

Recent Studies
and Publications

Stormwater Sampling Manual: A guide for the Industrial Stormwater General Permit

BEACH Program: Bacteria Trends at Core Marine Beaches, 2003-2014

Sediment Quality in the Eastern Strait of Juan de Fuca, Changes over a Ten-Year Period

Chemicals of High Concern to Children in Children’s Clothing, Footwear, and Accessories

Recent Journal Article

Stochastic Water Quality Modeling of an Impaired River Impacted by Climate Change. Article in Journal of Environmental Engineering

Recent Posters

Ecosystem thresholds in the Salish Sea using continuous measurements from ferry sensors

Physical, Chemical, and Biological Conditions
during Noctiluca Blooms in Puget Sound