How Radon Mitigation Works
Updated: Sep 22, 2019
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Need to look for points of access like bare soil and add a ventilation system. Virginia State Law requires radon contractors who install radon reduction systems to be listed with either the National Radon Profiency Program (NRPP): www.nrpp.info , or the National Radon Safety Board (NRSB): www.nrsb.org.