Learn what radon in drinking water is, its potential health risks, possible benefits, and effective strategies to address contamination and ensure water safety.

Head of Content, Daniel Goren
Updated June, 5

Expert water quality Solutions Await!
Water quality issues in St. Louis or Nashville? Our experts provide quick repairs and maintenance to keep you cool. Contact us today!
What Is Radon in Drinking Water?
Radon is a colorless, odorless, tasteless radioactive gas that naturally occurs from the decay of uranium in soil, rock, and groundwater. It can seep into homes through cracks in foundations, walls, and floors, but it can also enter household water supplies—especially groundwater from private wells. Radon typically becomes an issue when drinking water sources run through bedrock or geological formations containing uranium, increasing the likelihood that radon will dissolve in the water supply and enter homes.
When radon-contaminated water comes into your home, the gas can escape into the indoor air during everyday activities like showering, washing dishes, cooking, or doing laundry. This airborne radon can then be inhaled, posing significant health risks.
How Does Radon in Drinking Water Get into Homes?
Radon generally enters the home's drinking water through groundwater, rather than surface water sources like lakes, rivers, and reservoirs. Homes that rely on groundwater from wells located in areas with higher natural uranium levels can experience elevated radon concentrations in their water. As water flows from faucets or showers, radon gas escapes into the indoor air, gradually accumulating inside the home.
In areas such as St Louis and Nashville, homes that depend upon private wells or groundwater sources should be mindful of potential radon issues due to local geology. Regular testing and appropriate mitigation measures can effectively manage radon levels in drinking water and indoor environments.
Health Risks Associated with Radon in Drinking Water
Exposure to radon primarily occurs via inhalation, posing a significant lung cancer risk. According to the Environmental Protection Agency (EPA), radon inhaled from indoor air contaminated by drinking water accounts for approximately 168 deaths annually in the United States. Some important details about radon health risks include:
Due to these significant risks, the EPA recommends regularly testing your home's water and indoor air for radon, particularly if your water comes from private groundwater wells.
Are There Any Benefits of Radon in Drinking Water?
Radon has no direct health benefits. It is considered a harmful environmental contaminant with potential negative health consequences. However, identifying elevated radon levels may indirectly benefit homeowners by prompting proper design, remodeling, or implementation of mitigation techniques. When homeowners recognize radon issues, they commonly upgrade water treatment systems, seal building foundations, or increase home ventilation. These measures can enhance overall water quality and indoor air conditions, leading to healthier living environments overall.
How Can You Detect and Reduce Radon Levels in Your Drinking Water?
Radon in drinking water can be identified and managed with proper testing and mitigation strategies. Recommended steps include:
Residents in busy metropolitan areas utilizing groundwater sources, including St Louis or Nashville communities, should consider periodically testing their water for radon and ensuring adequate treatment solutions are in place.
Conclusion: Understanding the Importance of Addressing Radon in Drinking Water
Radon in drinking water is an invisible yet serious health hazard, especially for homes with groundwater sourced from private wells. Understanding the potential dangers, regularly testing the water supply, and promptly implementing appropriate mitigation methods are essential steps to safeguard your household's health. Ensuring clean, radon-free drinking water contributes significantly to your family's overall well-being, benefiting long-term health and safety.
We treat our people as our top priority so they'll treat you the same way. 100% Satisfaction, Every Time!
Providing air conditioning repairs, installation and maintenance for St Louis, MO and Nashville, TN. During the hot summers, call Hoffmann Brothers for all your AC repairs, replacement, and tuneup needs.
Hoffmann Brothers offers residential and commercial electrical services for St Louis homes and businesses. Lighting, outlets, panels, whole house fans, generators, and more. Call our licensed electricians today!
Need a furnace repair in St Louis or Nashville? Hoffmann Brothers can handle all your heating repairs, no matter the brand, including ductless mini-split systems. We also proudly offer heating system installations, and ongoing maintenance services.
Hoffmann Brothers offers appliance repair services throughout St Louis, MO! Our experienced technicians are trained to work on all major brands of most home appliances including Dishwashers, Refrigerators & Freezers, Washing Machines & Dryers, and Ovens.
Hoffmann Brothers is your experienced Plumbing Company service both St Louis and Nashville. We offer plumbing repairs and installations, along with drain and sewer solutions.
Do you need Mechanical or Commercial services for your St Louis or Nashville area business? We offer HVAC, Plumbing, Electrical (St Louis only), Indoor Air Quality, and more.
Hoffmann Brothers is your professional water heater contractors for both Nashville, TN and St Louis, MO. We provide hot water heater installation, repair, and maintenance for both standard and tankless systems.
Hoffmann Brothers is your Nashville and St Louis area drain Plumber. We provide drain cleaning and clearing and much more. Trust our drain experts to fix your clogged sink or toilet quickly and efficiently.
Common Signs of Excess Radon in Water: What to Look For
Radon is an odorless, colorless, radioactive gas that naturally occurs due to the decay of uranium in soil, rocks, and groundwater. When radon accumulates in household water supplies, especially from private wells, it can pose serious health risks, notably an increased risk of lung cancer. While radon is impossible to detect through sight, taste, or smell, there are certain indirect signs and factors you can look for, as well as essential testing practices you can follow to identify its presence. Understanding these indicators and recommended actions can significantly aid in protecting your health and safety.
No Direct Sensory Signs Exist
A critical aspect to recognize is that radon itself does not create any visible, tasteable, or smellable indication in water. Unlike contaminants such as iron, sulfur, or chlorine, you will not experience any unusual odor, discoloration, or taste changes when radon is present. Therefore, judging based on sensory clues alone will not help you detect radon contamination.
Indirect Indicators and Risk Factors Associated with High Radon Levels
Since direct sensory signs don't exist, it's essential to consider several indirect indicators and risk factors that might suggest radon could be in your water:
Health Symptoms Associated with Radon Exposure
Radon exposure, particularly over extended periods, may lead to health concerns. While radon ingestion in drinking water is less hazardous than breathing radon gas from air (in terms of cancer risk), it's still crucial to identify potential airborne radon released when water is used in daily household activities such as showering, cooking, dishwashing, or laundry. Long-term radon inhalation significantly escalates the risk of developing lung cancer. Pay careful attention to persistent respiratory issues or unexplained respiratory symptoms in household occupants, notably:
Recommended Radon Testing Methods for Water
Due to its odorless and colorless nature, professional laboratory testing is the definitive and recommended approach to determine radon levels in your water supply:
Action Steps if Excess Radon is Found
If laboratory tests confirm radon concentrations above recommended limits (commonly above 4,000 picocuries per liter for water), action should be taken:
Conclusion: Why Awareness and Proactive Testing Are Essential
Excess radon in water cannot be directly sensed or observed, making preemptive and routine testing critical to household health. By understanding indirect indicators, radon exposure-related symptoms, and testing strategies, you can confidently and proactively maintain your family’s safety. Regular testing and immediate action provide peace of mind and significantly reduce the risk associated with excess radon in your home's water supply.
SERVING
Brentwood, MO
1025 Hanley Industrial
Brentwood, MO 63144
Nashville, TN
45 Willow St.
Nashville, TN 37210

St Louis Location
(314) 664-3011
St Louis Location
1025 Hanley Industrial Brentwood, MO 63144
Nashville Location
(615) 515-3015
Nashville Location
45 Willow St Nashville, TN 37210
Understanding the Impact of Radon in Water on Your Appliances
Many homeowners understand radon as a gas that’s harmful when breathed, yet not everyone realizes that radon can also infiltrate drinking water sources. While radon's primary concern is typically its potential to cause health issues when inhaled or consumed, radon dissolved in water can also gradually contribute to appliance problems in your home over time.
When radon is present in your water supply, it is commonly introduced through groundwater. As this water is used in daily activities like cooking, showering, laundry, or dishwashing, radon is inevitably released in the form of gas. While the amount of radon released may seem minor, prolonged exposure can impact household appliances and plumbing systems. Understanding precisely how radon affects appliances and the necessary steps to prevent damage will save you both money and potential health concerns.
How Radon in Water Damages Your Appliances
Radon, chemically inert but radioactive, decays into radioactive particles, which can accumulate and pose risks. These particles can cause gradual damage in several main areas related to appliances and plumbing:
Signs That Radon May Be Affecting Your Appliances
Though radon is colorless and odorless, indirect signs can indicate radon or radioactive contaminants' possible presence in water affecting household appliances and plumbing:
If these issues consistently appear despite standard maintenance and replacements, you should test your home's water supply for radon.
How to Address Radon in Your Water Supply and Protect Your Appliances
To protect your home appliances and ensure water safety, consider these specific solutions for radon removal:
<li><b>Granular Activated Carbon (GAC) Filters:</b> GAC filters attract and trap radon within their carbon media. As water passes through this media, radon is absorbed efficiently. While they’re relatively less expensive upfront, they may require regular replacement and careful disposal, as radioactive particles can build and concentrate within the carbon medium.</li>
<li><b>Radon Testing and Monitoring:</b> Regular testing and monitoring of radon levels in your home water supply can help you detect problems early. Local professionals can perform standardized radon tests to provide exact radon concentration levels, allowing informed decision-making about available treatment options suitable for your primary concerns and situation.</li>
<li><b>Professional Plumbing Inspections:</b> Periodic professional inspections and routine plumbing and appliance maintenance will help detect radon-induced issues in your system before significant damage occurs. Preventative actions and timely repairs are crucial to extending your appliances' lifespan and avoiding escalated maintenance costs down the line.</li>
Final Recommendations
Considering the potentially severe appliance damage and increased costs caused directly and indirectly by radon in your home's water supply, prevention and remediation become essential. Testing for radon regularly, installing radon removal systems such as aeration or activated carbon filtering, and proactive plumbing inspections will safeguard your appliances and piping, reduce long-term maintenance expenses, improve equipment efficiency, and most importantly, protect your household from unnecessary exposures to potential radon health risks.

Water issues in St. Louis or Nashville? Our experts provide quick repairs and maintenance to keep you cool. Contact us today!
Request a quote
Understanding Radon in Water
Radon is a naturally occurring radioactive gas produced from the breakdown of uranium found in rocks and soil. It dissolves into water underground, potentially contaminating wells and aquifers. Since radon is odorless, colorless, and tasteless, it doesn't produce any immediate noticeable sensory changes in your drinking water. Its physical and chemical properties enable it to easily blend without causing apparent alterations to water's appearance, odor or flavor.
Radon's Impact on Taste
Radon itself, due to its inert nature and chemical makeup, does not directly impart any taste to your drinking water. If your water has changed noticeably in flavor—more metallic, earthy, or chemically—it is likely not caused solely by radon. Instead, the taste alteration might stem from other dissolved elements or contaminants within the water, such as iron, manganese, hydrogen sulfide, chlorine, organic materials, or algae rather than radon itself.
However, it is important to note:
Radon's Influence on Smell
Similarly, radon gas has no known odor. It cannot be detected by human smell, and it does not cause water to have any distinct or unusual smell. If your drinking water emits a strange odor—whether unpleasant, sulfurous, metallic, or musty—the likely culprit is not radon. Instead, the presence of odors typically signals contamination from other minerals, organic compounds, bacteria, or chemical sources.
Key points about radon and smell:
Common Misconceptions About Radon in Water
There is a frequent misunderstanding that radioactive substances like radon could cause noticeable sensory differences in water due to their harmful effects. However, despite its potential health risks, particularly associated with lung cancer from inhalation during showering or other activities releasing the gas, radon itself does not manifest through noticeable odor, taste, or color changes.
Important clarifications:
Ensuring Your Water is Safe from Radon
Since radon cannot be detected personally through sensory evaluation, the only reliable method to identify radon presence in drinking water is systematic testing. You can:
Conclusion: Taste and Smell Are Not Indicators of Radon's Presence
In simple terms, radon gas does not affect the taste or smell of your drinking water at all. If your water has developed unusual characteristics, other contaminants or sources should be investigated. Because radon is completely undetectable through human senses, regular and professional testing remains crucial to ensuring your water's safety and protecting you and your family’s health.
Discover what zeolite minerals are, their role in drinking water, and explore potential health benefits and risks associated with their consumption.
Discover what cyanate is in drinking water, explore potential health risks and possible benefits, and learn how cyanate can impact your drinking water quality.
Learn about chlorate in drinking water, its health risks and potential benefits, safe exposure levels, and the importance of monitoring water quality.
Explore what perchlorate is, its presence in drinking water, associated health risks, benefits, and ways to reduce exposure. Protect your health with key insights.
Discover what iron oxide in drinking water is, its potential health risks, benefits, and how it affects water quality and safety for your household.
Discover what gallium in drinking water means for your health. Explore potential risks, benefits, and safety considerations regarding gallium exposure.