MAH_2019

Protocol for Conducting Measurements of ANSI/AARST MAH 2019 Radon and Radon Decay Products in Homes 18 9.4.3 Recommended Actions Both radon gas and RDP measurements shall be reported along with reference to their respective action levels and recommended actions (in accordance with Section 8.5 ) that apply collectively or individually to each measurement. 9.4.4 Report on conditions In addition to all other requirements in Section 8.0 , the report shall include a listing of all items from Exhibit 5 and the condition of each during the test. 9.4.5 Special Situation If one collocated measurement (either radon gas or RDP) meets or exceeds the action level , and the other does not, the following options are permitted: a) Further interpretation is not required in the report. b) Interpretations. When an interpretation is requested or reported regarding such a discrepancy relative to decisions to mitigate, reports shall include an assessment of test conditions observed in Exhibit 5 , or as determined by more thorough investigation. The assessment shall evaluate characteristics of the building that can affect RDP concentrations and, at a minimum, identify both: 1. characteristics of the specific building as they might be expected to either increase or decrease suspended RDP concentrations; and 2. the degree to which such characteristics are either temporary in duration or reasonably stable conditions for that building. Note—Section D of the attached MAH Companion Guidance provides a table that discusses activities and conditions that can influence radon decay product test results.