Section 216-RICR-50-15-2.5 - Mitigation Requirements and Protocols for Public and High Priority Buildings2.5.1Mitigation Requirements and ScheduleA. Any area of a public or high priority building having an annual average level of radon in excess of or equal to 4 pCi/L (0.02 WL), measured according to the follow-up testing specifications in §2.4.9 of this Part, must be mitigated to a level below 4 pCi/L (0.02 WL).B. Mitigation systems installations shall be completed according to the following schedule: 1. Within one (1) year for results greater than or equal to 4 pCi/L (0.02 WL) but less than 20 pCi/L (0.1 WL).2. Within six (6) months for results greater than or equal to 20 pCi/L (0.1 WL) but less than 100 pCi/L (0. WL).3. Within sixty (60) days for results greater than or equal to 100 pCi/L (0.5 WL).C. Mitigation systems shall be installed by a licensed radon contractor.2.5.2Mitigation System RequirementsA. Licensed radon contractors shall follow standardized mitigation procedures contained in the applicable American National Standards Institute (ANSI) documents, referenced as follows: 1. "Radon Mitigation Standards for Schools and Large Buildings" (RMS-LB 2014).2. "Protocols for Measuring Radon and Radon Decay Products in School and Large Buildings" (MALB 2014).3. "Protocol for Conducting Radon and Radon Decay Product Measurements in Multifamily Buildings" (RMS-MF 2014).4. "Radon Mitigation Standards for Multifamily Buildings" (RMS-MF 2014).5. "Protocols for Measuring Radon and Radon Decay Products in Homes" (MAH 2014)6. "Standard Practice for Mitigation Systems in Existing Low-Rise Residential Buildings" (ASTM E 2121-12)7. "Standard: Reducing Radon in New Construction of 1 && 2 Family Dwellings and Townhouses" (CCAH-2013)B. Radon reduction systems shall be clearly labeled with the following information: 1. Identification as a radon mitigation system.2. Name, address, telephone number, and license number of the contractor.C. All active radon reduction systems shall be designed to run continuously.D. Licensed radon contractors shall test for back-drafting to ensure that all combustion systems have sufficient air supply.2.5.3Post Mitigation RequirementsA. After installation of a mitigation system, testing shall be repeated in all mitigated rooms or areas, using the guidelines for initial short-term testing as identified in §§2.4.3 through 2.4.8 of this Part.B. Post mitigation tests shall be taken by a certified radon testing business that is not subject to the radon contractor's control or supervision.C. The building owner shall ensure that all post mitigation test results are submitted to the Department within thirty (30) days of any mitigation system installation.216 R.I. Code R. 216-RICR-50-15-2.5
Amended effective 1/1/2019