![]() ![]() Information on radon testing and what to do if a test indicates a radon problem exists in your home is summarized below. Visit the Maryland Department of the Environment for a list of certified water testing labs. For those private wells/well water, it is recommended that you test your water for radon.If you are concerned that radon might be entering your home through the water and your water comes from a public water supply, contact your water supplier.A radon problem is more likely when the source is groundwater (e.g., private well, or a public water supply system that uses groundwater). Radon in your home's water is not usually a problem when the water source is surface water. The potential radon risk from water is generally much less than from entry of radon through a building's foundation. Entry points in a building envelope (foundation, floor, walls, and roof), can include cracks in concrete floors and walls, construction joints, gaps around service pipes, and other penetrations through foundations and walls.Īlthough newer houses, (those built after 1995 in Montgomery County) are built to resist radon entry through the use of certain construction techniques, the only way to ensure that radon is not entering the house is to conduct a radon test. Radon can enter a home from the soil beneath a home through cracks and other openings in a building's foundation. There are three main ways that radon can accumulate in your home: Entry through the Foundation and Building Envelope ![]()
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