Property owners/managers generally have no duty to report the results of radon testing to residents, some local health and housing codes may impose an obligation to disclose information about any adverse living or safety conditions. Therefore, firms should always consult with legal counsel concerning your responsibility and liabilities under the law.
Even if disclosure is not required, it may be prudent to inform your residents of radon testing and the results, nonetheless. This can foster a good relationship between you and your residents, as well as alleviate questions and concerns that may arise if remediation efforts are undertaken.
This document includes two sample letters: One informs residents that initial radon testing will take place; and the other informs residents of radon testing results.