ESER Environmental Surveillance Task

Routine operations at the Idaho National Laboratory (INL Site) have the potential to release radioactive contaminants into the air and water.  To measure the levels of  these contaminants, the Environmental Surveillance, Education and Research Program (ESER) collects environmental samples, primarily off the INL Site, for the U.S. Department of Energy, Idaho Operations Office. 


Over 2,000 samples of a variety of media are collected each year, including air, water, foodstuffs and soil,as well as direct radiation measurements. (Sampling Schedule)  Sample collections are made over a nearly 9000 mi2 area of southeastern Idaho.


Quarterly and annual surveillance reports are available through the website or by contacting the WAI ESER office in Idaho Falls.  Search our sampling results database at


Laboratory analyses are performed by the Idaho State University Environmental Assessment Laboratory and Oak Ridge Associated Universities.



Analyte Fact Sheets

FAA Sampler

Other INL Surveillance Agencies