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May 8, 2026 · 5 min read
The EPA action level for radon is 4.0 pCi/L—meaning at or above that level, you should strongly consider mitigation. Iowa’s statewide average is often cited around 6.4 pCi/L, compared with roughly 1.3 pCi/L nationally.
A single test doesn’t define lifetime risk, but it’s the data point you have during a purchase. Elevated results don’t mean the deal is dead—they mean you should price mitigation or retest intelligently.
H8 explains results in plain language and notes EPA context so you can talk with your agent and a qualified mitigation contractor about next steps.
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