The Division of Public Health Services (DPHS) in collaboration with the New Hampshire Department of Environmental Services is responding to a positive test result for perfluorooctane sulfonic acid (PFOS) in a water sample from a well that serves the Pease Tradeport and the NH Air National Guard Base at Pease. Because the level exceeds the “provisional health advisory” set by the U.S. Environmental Protection Agency (EPA) the well was immediately shut down by the City of Portsmouth.
PFOS is one of a family of chemicals called PFCs for perfluorochemicals. PFCs have been used for decades in many commercial products, such as stain-resistant carpeting, fire-fighting foam, nonstick cookware, fabric coatings, and some food packaging. As a result, they are found throughout the environment. They are also very persistent, and do not break down readily in the environment, or in our bodies. Consequently, PFCs can be detected in the blood stream of most people.
The other two wells at Pease did not contain PFCs above the provisional health advisory level. The water supply for the City of Portsmouth was checked as well out of an abundance of caution.
If you have any questions, please contact the DHHS Emergency Services Unit at
Documents and Information
- Frequently Asked Questions
- Press Release, 05/22/2014
- NH Health Alert Network - PFOs Detected in Pease Tradeport Water System
- EPA Perfluorooctanoic Acid (PFOA) and Fluorinated Telomers
- Waste Site Cleanup & Reuse in New England
- National Institute of Environmental Health Sciences Perfluorinated Chemicals
- CDC Fact Sheet: Perfluorochemicals (PFCs)
- City of Portsmouth Water System Information
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