Ensuring Valid Radon Testing for Real Estate

Thumbs up to this couple working with their real estate agent to discuss including Radon testing as part of their transaction. Renny the Robot pop ups throughout this guide, adding a bit of Tahoe cheer to an otherwise serious topic like radon in homes.

The Potential for Radon Test Interference in Real Estate Transactions

When a home is being bought or sold, Radon testing becomes an important part of the real estate process. Because Radon levels can influence health decisions and even contract negotiations, the EPA emphasizes the need to ensure that every Radon test is performed correctly and without interference. A valid test protects both buyer and seller by providing trustworthy information about the home.

The EPA states that "there is a potential for test interference in real estate transactions." This may sound surprising at first, but the concern is real. In a competitive market, someone might be tempted to influence the test results to avoid a Radon mitigation requirement. Interference could be intentional, such as opening windows to dilute Radon levels, or unintentional, such as placing the device in the wrong location or disturbing it during the test period.

We believe that nobody should ever tamper with a Radon test. Fortunately, Radon testing is easy to repeat, and any questionable results can be double-checked later by the homeowner. Because Radon levels can be measured again at any time, attempting to "game" the test is not only unethical but also pointless.

How Improper Testing Can Happen

Not all invalid tests are the result of deliberate interference. Sometimes mistakes happen simply because the person performing the test does not fully understand the instructions. Examples include placing the device too close to drafts, heat sources, or exterior walls, or failing to maintain closed-house conditions during a short-term test. These errors can affect the accuracy of the results.

EPA Tips for Ensuring a Valid Test

The EPA provides several practical suggestions to help ensure that Radon tests are performed correctly. These tips also help identify whether a test may have been compromised. While the full list appears in the EPA Guide, the general principles are simple:

• Follow the instructions that come with your Radon test kit.
• Place the device in the correct location, away from drafts and high-traffic areas.
• Maintain closed-house conditions during short-term tests.
• Do not disturb or move the device during the test period.
• Use a qualified Radon tester if you are unsure how to perform the test.

These steps help ensure that the results reflect the true Radon level in the home. A valid test benefits everyone involved in the real estate transaction by providing accurate information that can be trusted.

About This Radon-at-Tahoe Page

This page is part of our series sharing personal experiences and reviews of the Home Buyer's and Seller's Guide to Radon. By getting Radon detection and Radon mitigation, you can live more healthfully amidst the beauty of Lake Tahoe. This series is provided to inform about Radon at Lake Tahoe and beyond. On each page, you can view more by clicking on one of the navigation links below.

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