Maine Radon Homepage
The Radiation Control Program provides, free of charge, information packets containing information on different aspects of radon. We also register radon service providers (laboratories, contractors, and testing companies) that have a proven level of training.
Information for the Public (information for the regulated community further below)
Radon Tip Sheets
- Radon in Maine ( tipsheet #1)
- Testing Your Home for Radon (tipsheet #2)
- Radon: Know the Numbers When you Buy or Sell a Home (tipsheet #3)
- When You Build a New Home: Put in a System to Reduce Radon Dangers (tipsheet #4)
- Working with a Registered Radon Tester (tipsheet #5)
- Treatment Systems: Reduce Air Radon Levels in Your Home (tipsheet #6)
- Treatment Systems: Reduce Radon Levels in Your Well Water (tipsheet #7)
- Working with a Registered Radon Reduction Expert (tipsheet #8)
- Rental Property (tipsheet #11)
- U.S. EPA Published Information
Testing and Mitigation
- New Radon Laws requires the testing of rental properties by March 1, 2014, exluding short term rentals of less than 100 days
- Registered Laboratories Providing Air and Water Radon Analysis (1/15/14)
- Registered Air and Water Mitigation Contractors (1/15/14)
- Registered Air and Water Testing Companies (1/15/14)
The State advises you to take action to reduce the radon level in your home's indoor air at 4 pCi/L, but consider reducing levels between 2 and 4 pCi/L. The current advisory level for radon in your home's water supply is 4,000 pCi/L. At levels of 4,000 pCi/L or higher you should consider action beginning with reviewing your total radon risk (from radon in air and water). As your radon level in water gets closer to 10,000 pCi/L, you need to more strongly consider installing treatment.
Under Maine law, only the owner or occupant of a residence or someone registered with the state to provide these services, may test for radon, install and/or advise on the installation of a radon reduction (mitigation) system. If the home or residence is for sale then the owner or occupant cannot test for radon or install a system to reduce it, the testing and mitigation of properties for sale must be done by a registered radon service provider.
- IMPORTANT CONSUMER NOTICE REGARDING SEALANTS
- Radon Testing/General Information
- Radon Reduction (Mitigation) Information
- Making Sense of Your Test Results
- Real Estate Information
- Realtor FAQ for 2 pCi/L in Air
- Realtor FAQ for 4,000 pCi/L in Water
- Radon Frequently Asked Questions
- GAC units for water treatment
The Maine Radiation Control Program's Radon Section is taking requests for a free inspection of radon mitigation systems that have been installed by a state-registered mitigation contractor or by a builder during construction.
- How to Become a Maine Registered Radon Service Provider
- Radon Mitigation System and Cold Weather Advisory
- Radon Service Provider Page
- Radon Service provider application (HHE-806)
- Radon Proficiency criteria (HHE-806a)
- Radon registration additional employee (HHE-806b)
Call 1-800-232-0842 in Maine, for more information
or 1-207-287-5698 out of Maine.
FOR ADDITIONAL INFORMATION CALL THE RADIATION CONTROL PROGRAM AT: