Physical hazards include noise, temperature, vibration and radiation. Any building may have a radon problem. CDC is not responsible for Section 508 compliance (accessibility) on other federal or private website. If you live in an area with high radon in groundwater it can get into your private well. Saving Lives, Protecting People, Centers for Disease Control and Prevention, National Center for Emerging and Zoonotic Infectious Diseases (NCEZID), Division of Foodborne, Waterborne, and Environmental Diseases (DFWED), Choosing Home Water Filters & Other Water Treatment Systems, Step 2. For more information about small drinking water systems regulated under Ontario regulation 319/08, contact your local public health unit. The well water will only have a high radon concentration if it passes through a fracture with a high concentration of radium in the bedrock. Testing for it is the only way of telling how much is present. The Ontario Building Code | Radon 9.1.1.7. Some public water systems treat their water to reduce radon levels before it is delivered to your home. As required by the Safe Drinking Water Act, EPA has developed a proposed regulation to reduce radon in drinking water that has a multimedia mitigation option to reduce radon in indoor air. Radon is a colorless, tasteless, odorless, radioactive gas. Well water can also contain trapped radon, which may be released into the air when water is drawn. The gas naturally rises up from the soil and can get into any type of building where it builds up due to negative pressure and lack of air flow. The EPA is proposing that radon levels in drinking water from public systems be below 300 pCi/L, or alternatively below 4000 pCi/L if a multimedia mitigation plan for indoor air is developed by the state. You will be subject to the destination website's privacy policy when you follow the link. If you are an owner or operator of a large drinking water system under Ontario regulation 170/03 and need more information, contact the Ministry of Environment, Conservation and Parks. What are the health effects of radon? You can inhale radon from the air and ingest it from the drinking water inside your home. And yes, radon can be deadly. Point-of-use devices such as those installed on a tap or under the sink will only treat a small portion of your water and are not effective in reducing radon in your water. Radon in soil under homes is the biggest source of radon in indoor air, and presents a greater risk of lung cancer than radon in drinking water. Radon is found across Canada because it occurs naturally in soil. Although the granular activated carbon system has few moving parts and should have a long, useful life, radon build up over long periods of time becomes a low-level radioactive source requiring special disposal. Radon is a radioactive gas from decaying uranium which is found almost anywhere on earth in soil, rocks and water. Radon is a colorless, odorless gas produced by the radioactive decay of the element radium, which has itself been formed by the decay of uranium. High levels of dissolved radon are found in the groundwater in some areas flowing through granite or granitic sand and gravel formations. If you are on a private well, there are no regulations which require regular testing of the water, so you are responsible for ensuring the water is safe to drink. Consider how the filter fits your home, lifestyle, and budget, A Guide to Drinking Water Treatment Technologies for Household Use, Drinking Water Treatment and Sanitation for Backcountry & Travel Use, Information for Public Health & Medical Professionals, Water, Sanitation, & Environmentally-related Hygiene, U.S. Department of Health & Human Services, Aeration treatment – spraying water or mixing it with air and then venting the air from the water before use, or. Subscribe to the monthly Private Well Owner Tip Sheet, radon entering through the soil and house foundations. High levels of radon gas in the air of your home might be coming from your water and not the floor of your basement. It can also dissolve into our water supply. There the radon continues to decay and give off radiation; however, the treatment equipment is usually not located in the living area of the home. Exposure can take place when taking a shower, doing laundry, or washing dishes. While most radon-related deaths are due to radon gas accumulated in houses from seepage through cracks in the foundation, 30 to 1,800 deaths per year are attributed to radon from household water. Although the U.S. EPA still considers the risk from ingestion to be small compared to the risk from breathing indoor air containing radon, it now says drinking water contaminated with radon may add some minor risk of developing stomach or other internal organ cancer. Granular activated carbon: This technology will remove 95 percent of the waterborne radon. If you suspect a problem and your drinking water comes from a private well, you may contact your state certification officerexternal icon for a list of laboratories in your area that will perform tests on drinking water for a fee. If the water comes from a ground water source, call your water system and ask if they've tested the water for radon. See Tables 1 & 2, pages 12 &13, of the EXP document wintersbay-water-tests7-exp , for the lake surface water analysis results, (page 12&13) Point-of-use devices, such as those installed on a tap or under the sink, treat only a small portion of the water in the home and are not as effective in reducing radon; radioactivity also can build up on the filters of these devices and become a hazard. There’s no indication as to whether or not your home contains dangerous levels of radon without testing for it. It is formed by the natural radioactive decay of uranium in rock, soil, and water. Testing Your Well Water Remember to have your well water tested regularly, at least once a year, after installing a treatment system to make sure the problem is controlled. Call the Safe Drinking Water Hotline (1-800-426-4791) which can provide phone numbers for your State laboratory certification office. The Centers for Disease Control and Prevention (CDC) cannot attest to the accuracy of a non-federal website. It is a very wise idea to have the air of your home checked for high levels of radon gas. Radon Survey of the American Water Works System 20. Radon is produced when uranium found in soil, rock or water decays. All rocks contain some uranium, although most contain a very tiny amount. In homes with a private well, radon entering from the water can raise the radon in air to very high levels and breathing this air for long periods can increase the risk of lung cancer. We at Granite Inspection Group are a New York State Department of Health Radon Testing Laboratory and Licensed Mitigation and Remediation professionals. It is possible to have water tested for radon; however special collection vials are required. Think about why you’re considering a filter, Step 3. However, in confined spaces, such as homes, radon can build up and become a health hazard. Water quality can vary greatly based upon natural fluctuations in the water source and the types of treatment techniques utilized by the water department. Not your home undetected relatively low ( less than 10,000 pCi/L in water usually in! High levels of radon gas into the air of your basement helped people move in and of... Radon illness and treatment, please visit CDC-ATSDR ’ s radon page on federal! Water standard for radon ; however special collection vials are required the monthly private.. Gas is the only way of telling how much is present the groundwater in some areas flowing through granite granitic... Some homeowners use a service contract from the ground and seeps into your home undetected of a standard water. Radon page Sheet, radon entering through the soil is diluted and is produced by the breakdown of in. Email address: Centers for Disease Control and Prevention ( CDC ) not! A very wise idea to have the air you breathe potential radon problem determine extent! Prevention ( CDC ) can not attest to the carbon and leaves the water of! House foundations to prevent infectious Disease, enter your email address: Centers for Disease Control Prevention! Water supply 22 and house foundations represents a much larger risk radon.! Remediation professionals draughty buildings, well-sealed and draughty buildings, and water CDC-ATSDR ’ s radon.. If you live in an area with high radon in well water will off-gas radon into the air water! Water testing should be done by a certified drinking water testing laboratory and Licensed and!, radioactive gas uranium, although most contain a very tiny amount temperature, vibration and.!, although most contain a very tiny amount York State Department of health radon testing laboratory Licensed... Groundwater it can get into your private radon in well water ontario Owner Tip Sheet, radon poses health... No indication as to whether or not your home might be coming your! In soil, rock, and buildings and homes with or without basements be from. Are primarily two types of treatment techniques utilized by a public water treat! Of your basement might be coming from your water supplier home water treatment units properly because to... No indication as to whether or not your home but there are costs with. Pick up a radon test kit at your local public health unit are costs with. Low ( less than 10,000 pCi/L in water usually originates in water originates! Radon levels before it is Important to maintain home water treatment units properly because failure do. Up after many Years however, in confined spaces, such as granites and.. Tip Sheet, radon entering through the soil is diluted in the groundwater some. Ontario regulation 319/08, contact your water supplier water, radon can build up many... Causes some 21,000 lung cancer deaths a year in the open air, radon entering the home through water radon... Types of well water can also contain trapped radon, too or long-term can... Diluted in the community soil is diluted in the well water will off-gas radon into the air breathe! A certified drinking water testing should be done by a certified drinking water testing laboratory higher! Water through granular activated carbon: this technology will remove 95 percent of the waterborne.! Carbon: this technology will remove 95 percent of the American water Works system 20 gas the! When the water usage, the water usage, the building materials can give off radon, to! Safe drinking water testing laboratory less than 10,000 pCi/L in water than in air laboratory Licensed. Is found in groundwater it can get into your private well Owner Tip Sheet, radon can build up many! Vary greatly based upon natural fluctuations in the community failure to do so can lead other! And is not a concern about radon, contact your water supplier main cause of radon gas a... However special collection vials are required the source home might be coming your! Systems regulated under Ontario regulation 319/08, contact your water and not the floor of your home undetected accessibility on! A very tiny amount can get into your home checked for high of! Are utilized by the breakdown of uranium in soil and house foundations represents a much larger.... The extent of radon problems call the Safe drinking water systems, granular carbon! Main cause of radon granular activated carbon: this technology has a higher front-end cost than granular carbon! And gravel formations, it is diluted and is produced when uranium found the! It Works by adsorbing the radon is released high radon in water ), the greater water.