Radon is a radioactive gas from uranium decay in soil and rocks. While known as an indoor air pollutant, it can also dissolve into groundwater, contaminating wells. When used for drinking, cooking, or bathing, radon gas can be released into the air, increasing lung cancer risk. Prolonged ingestion may also pose health risks.

Radon exposure is linked to lung cancer and is the second leading cause after smoking. Though ingestion risks are still studied, long-term exposure could increase stomach cancer likelihood.

Radon enters groundwater through surrounding rocks and contaminates wells. Unlike surface water, which allows radon to dissipate, groundwater sources retain the gas. Private wells in uranium-rich areas are at higher risk.

Testing is the only way to detect radon levels. Private well owners should test regularly, especially in high-risk areas. State health departments offer guidelines, and professional test kits are available.

Radon contamination in water is a serious but manageable issue. Testing and treatment, such as aeration or filtration, can reduce risks. Homeowners should stay proactive to ensure water safety and protect their health.