PFAS Exposure Assessment Sites

How the Communities Were Selected

CDC/ATSDR used a rigorous process to choose sites for the exposure assessments (EAs), starting by identifying all communities near current or former military bases that were known to have PFAS in their drinking water. CDC/ATSDR, then, examined other factors, such as:

  • Estimated number of people exposed
  • Magnitude of exposure
  • Estimated length of time exposure took place

In addition, the process also took into account the complexity of the drinking water system. This ensured that all potentially affected members of a community could be identified for possible inclusion.  This gave CDC/ATSDR a good chance of learning information that is valuable to the selected communities and to other communities facing similar PFAS exposure. These selected sites are referred to as ATSDR-led EAs.

CDC/ATSDR funded two pilot exposure assessments that were conducted by the Pennsylvania Department of Health and New York State Department of Health using the CDC/ATSDR PFAS Exposure Assessment Technical Tools. They are referred to as pilot EAs.

The benefits of the exposure assessments extend beyond the communities identified. The lessons learned can also be applied to communities facing similar PFAS drinking water exposures.

The ATSDR-led exposure assessments took place in the following communities:

Image shows a map of the United States indicating the names and locations of the PFAS exposure assessment projects. The exposure assessment projects names and locations are the following: Hampden County, MA near Barnes Air National Guard Base, Berkeley County, WV near Shepherd Field Air National Guard Base, El Paso County, CO, near Peterson Air Force Base, Fairbanks North Star Borough, AK near Eielson Air Force Base, Lubbock County, TX near Reese Technology Center, Orange County, NY near Stewart Air National Guard Base, New Castle County, DE, near New Castle Air National Guard Base, and Spokane County, WA near Fairchild Air Force Base. In addition, there are two PFAS exposure assessment technical tool pilot sites. These are the Montgomery and Bucks County, PA near Horsham Air Guard Station and former Naval Air Station Joint Reserve Willow Grove and Naval Warfare  Center Warminster, and the West Hampton New York near Gabreski Air National Guard Base.
Page last reviewed: September 22, 2022