Home Buyer's and Seller's Guide to Radon is a publication by the Environmental Protection Agency. Used with permission under public domain and creative commons. Usage: Category Education; License: Creative Commons Attribution license (reuse allowed)
On this page: If you've tested your private well and have a radon in water problem, it can be fixed. Your home's water supply can be treated in one of two ways.
Point-of-entry treatment can effectively remove radon from the water before it enters your home. Point-of-entry treatment usually employs either granular activated carbon (GAC) filters or aeration devices. While GAC filters usually cost less than aeration devices, filters can collect radioactivity and may require a special method of disposal.
Point-of-use treatment devices remove radon from your water at the tap, but only treat a small portion of the water you use, e.g., the water you drink.
Point-of-use devices are not effective in reducing the risk from breathing radon released into the air from all water used in the home.
For information on radon in water, testing and treatment, and existing or planned radon in drinking water standards, visit https://archive.epa.gov/water/archive/web/html/in dex-9.html, an EPA web site. If your water comes from a private well, you can also contact your state radon office.