Members of a U.S. Environmental Protection Agency (EPA) environmental monitoring and assessment team spent several weeks at the WIPP site in early April 2014. While at the WIPP facility, EPA reviewed DOE's air sampling plan for monitoring the area in and around the facility, visited DOE's air samplers to review their operations and placed air samplers onsite near existing DOE samplers to independently corroborate DOE's reported results.

• EPA's Response to the February 2014 Release of Radioactive Material from the Waste Isolation Pilot Plant (WIPP): EPA's WIPP Air Sampling Data from April 2014 (PDF)(3 pp, 2 MB)