Radon Mitigation in North Iowa
How mitigation works, when it is recommended, and how RadonStead is building a credentialed mitigation service without compromising independent testing discipline.
Lower radon by controlling soil gas.
Most residential mitigation systems use active soil depressurization: a fan continuously draws radon-containing soil gas from beneath the building and exhausts it safely above the structure.
- Diagnostic pressure-field testing
- Sub-slab or sub-membrane suction
- Sealing as a supporting measure
- Fan and system monitoring
- Post-mitigation verification
Post-mitigation verification matters.
Iowa rules require qualifying pre- and post-mitigation measurements to be performed by an independent measurement specialist not employed by the same mitigation firm, or by the homeowner/occupant/responsible person. RadonStead's long-term model preserves that independence through reciprocal relationships.
EPA recommends fixing at 4.0 pCi/L or higher.
Levels below 4.0 pCi/L still carry risk, and EPA advises considering reduction between 2.0 and 4.0 pCi/L.
Residential
Confirm the measurement, understand the building's foundation configuration, then obtain proposals from credentialed mitigation specialists.
Schools
Iowa public schools with results above 4 pCi/L must employ an Iowa credentialed mitigation specialist to develop a mitigation plan within the statutory timeline.
Childcare
Iowa licensed childcare centers must mitigate if required testing identifies levels above 4.0 pCi/L.
Start with measurement.
Before designing a mitigation response, get a professional radon result.
