Potassium Iodide (KI) Distribution

The Chester County Health Department offers Potassium Iodide (KI) tablets for those who live, work, or attend school within a 10-mile radius of the Limerick Generating Station or Peach Bottom Atomic Power Station.

View map and enter address to see if you are in the 10 mile radius


Individuals eligible for the tablets includes those who: 
  • Live, work or attend school within a 10-mile radius
  • Have KI tablets that exceed their expiration date.
How do I get them?
The Health Department holds a KI distribution event at least once a year for community members to pick up KI tablets for their household. KI tablets can also be picked up or mailed to your home.
  • Submit the KI Tablet Distribution Form electronically to receive KI tablets in the mail, pick-up tablets at the Health Department, or pick-up tablets at an outreach event. If requesting on behalf of a business, school, or other organization, enter the name of the business/school/organization in the First Name field and Attn: name of individual who should receive the KI tablets in the Last Name field.
  • If you need assistance completing the KI Tablet Distribution Form or are unable to complete the form, call (610) 344-6225. 
In the unlikely event of a radiological emergency, KI helps protect the thyroid against the harmful effects of radioactive iodine. Residents should only take KI tablets upon the direction of the Governor of Pennsylvania, the Pennsylvania Department of Health or public health officials.

For more information about the KI program at the Chester County Health Department, call 610-344-6225.