Pease Study

Pease Study Icon

The Pease Study is the first site of the national, Multi-site Study, which will look at the human health effects of PFAS exposure through drinking contaminated water. CDC and ATSDR will use the Pease Study to evaluate and improve procedures and methods for the Multi-site Study design.

The Pease Study is now enrolling participants who meet specific eligibility requirements. This study will expand our scientific understanding of PFAS by looking at the association between health outcomes and PFAS exposure from drinking water.

If you would like to enroll in the study or if you are unsure about whether you qualify for the study, please call the Pease Study call center at 603-846-6192. The call center will screen you for eligibility and provide information on the next steps.

Contact Us

Phone the Pease Study call center at 603-846-6192 to be screened for eligibility.
For general information about PFAS or the Pease Study call, 800-CDC-INFO (232-4636).
For general questions about the Pease Study, email


Approximately 8,000 people work at or frequent the Pease International Tradeport. There are also two daycare centers located on the site. In May 2014, drinking water wells that supply the Pease International Tradeport were sampled. The Haven Well, one of three wells that serves the Pease International Tradeport and the New Hampshire Air National Guard base at Pease, showed elevated levels of the unregulated contaminant perfluorooctane sulfonic acid (PFOS). How long PFOS may have been present in this well is not clear.

Because the level of PFOS exceeded the “provisional health advisory” set by the U.S. Environmental Protection Agency (EPA), the well was shut down by the City of Portsmouth on May 12, 2014, and since that time it has been physically disconnected from the system. The New Hampshire Department of Health and Human Services asked the Agency for Toxic Substances and Disease Registry (ATSDR) to help evaluate possible follow-up actions.

Pease Feasibility Assessmentpdf iconpdf icon [PDF -1MB]

Pease Study Community Meeting

The Pease Study Community Meeting was held Thursday, October 24th in Portsmouth, NH. You can view the meeting, including the question and answer segment, by following the link provided here (

For specific information on enrollment criteria, please view the Pease Study Community Fact Sheet:, or phone the Pease Study call center at 603-846-6192

Additional Resources:

Pease Community Assistance Panel (CAP)

Interested in learning more about ATSDR activities at the Pease International Tradeport Site? Join us for the next CAP meeting.  Click here for more information about the Pease CAP.

Next CAP Meeting

March 24, 2020
6:00 pm – 9:00 pm
222 International Drive
Suite 175
Portsmouth, NH 03801
Conference Room A

September 2019 CAP transcript pdf icon[PDF – 382 KB]

Pease Study Process - Provide Information to Protect our Community
Pease Study Process: Step 1 Community Engagement, Step 2 Recruitment, Step 3 Data Collection, Step 4 Analysis, Step 5 Individual Results, Set 6 Community Event, and Step 7 Study Results
Page last reviewed: December 20, 2019