This same test kit is also carried by most True Value Hardware stores under the American Sensors label. Just click on ordering when it comes up at the bottom of the index column at the left. If you order using your VISA, MC, or Discover card, the kit will be sent via first class mail, usually the same day, and you should have it in less than a week. If you've tested the air in your home and found a radon problem, and your water comes from a well, you should have your water tested for radon. Compared with radon entering the home through soil, radon entering the home through water will in most cases be a small source of risk.
Radon gas can enter the home through well water.
It can be released into the air you breathe when water is used for showering and other household uses. Research suggests that swallowing water with high radon levels may pose risks, too, although risks from swallowing water containing radon are believed to be much lower than those from breathing air containing radon. While radon in water is not a problem in homes served by most public water supplies, it has been found in well water. If you've tested the air in your home and found a radon problem, and your water comes from a well, contact a lab certified to measure radiation in water to have your water tested. Radon problems in water can be readily fixed.