When should post-mitigation testing be conducted?

Post-mitigation testing should be conducted in the same location as pre-mitigation tests to ensure consistency and accuracy in the assessment of radon levels. By testing in the same locations, you can directly compare the results of pre-mitigation and post-mitigation tests to determine the effectiveness of the mitigation efforts. This is crucial because it helps verify whether the mitigation system is functioning as intended and has successfully lowered radon levels to acceptable standards.

Testing in different locations or at varying times could lead to misleading results, as radon levels can fluctuate based on a variety of environmental factors. Therefore, to establish a clear and reliable evaluation of the mitigation system's impact, conducting post-mitigation testing in the original test locations is essential. This process not only provides valid data about the effectiveness of the radon mitigation strategies employed but also ensures that homeowners have accurate information regarding their indoor air quality after mitigation efforts have been made.