Naval Support Activity Naples began a scheduled one-year study of indoor radon gas concentrations in March 2013. The study is part of an ongoing Navywide radon monitoring program. Radon detectors were installed in Navy facilities at Capodichino, Support Site, Gaeta, Carney Park, and Navy-managed buildings at Allied Joint Force Command (JFC) Naples in Lago Patria.
These detectors were placed in basements and ground-level indoor spaces inhabited, or that could be inhabited in the future, at least four hours daily. Of the approximately 1,600 pairs of detectors collected and analyzed, 24 were above the U.S. Environmental Protection Agency (EPA) action level and require mitigation. No housing units tested exceeded mitigation action limits.
Mitigation measures are being taken for the 24 sites above EPA action levels and will be re-tested once mitigation is complete to verify radon levels are below the EPA threshold. Approximately 200 radon detectors from the year-long study were not found and are being re-tested for six months. Those sites are currently being re-tested and will also be mitigated and re-tested if found to be above the EPA radon threshold.