Reporting, Interpretation, and Client Communication
Reporting, Interpretation, and Client Communication
This domain tests whether results are explained accurately and ethically.
Core rules
- Report the result, units, test dates, device type, location, closed-house conditions, and any deviations. State the action level and the meaning of the result without calling it “safe.”
- EPA guidance: a single short-term result at or above 4 pCi/L should be followed by a second short-term test or a long-term test. Two short-term results averaging 4 pCi/L or more call for mitigation consideration. Results between 2 and 4 pCi/L warrant consideration of follow-up.
- Recommend a certified mitigator for mitigation. Do not use measurement work to pressure a client into mitigation.
- Protect client confidentiality and disclose conflicts of interest. Follow state licensing and NRPP/AARST standards.
Worked example
A 48-hour CRM test returns 5.8 pCi/L. The correct message is: this is above the EPA action level; arrange a follow-up short-term or long-term test to confirm before deciding on mitigation. Do not say “your home is safe” or “you must mitigate immediately” from one short-term result.
Traps
Calling 4 pCi/L “safe”; recommending mitigation on one short-term test without follow-up; mixing units; omitting test conditions; sharing results without authorization; performing mitigation without certification.