Located in Grundy County within the Waterloo Metro area, Holland sits on Iowa's characteristic glacial till deposits that are known for high radon potential across the state. With specific testing data currently limited for this community in zip code 50642, residents should prioritize radon testing given Iowa's geological conditions and the EPA's strong recommendation for all homes statewide.
Holland, IA Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
Holland, IA Radon Testing
Finding qualified radon testing professionals is the first step toward protecting your home.
Holland Radon Facts
Key details about the radon risk profile for Holland and the 50642 zip code area.
EPA Radon Zone
Zone 1 — High Risk
County
Grundy County, IA
Zip Code
50642
Predicted Screening Level
> 4.0 pCi/L (Zone 1)
Holland and the 50642 zip code are located in Grundy County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.
Radon FAQ for Holland, IA
What EPA Radon Zone is Holland in?
Holland and the 50642 zip code are in Grundy County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.
How much does radon mitigation cost in Holland?
Radon mitigation in Holland typically costs between $800 and $2,000. Most homes with standard basements can be mitigated with a sub-slab depressurization system in the $1,000–$1,500 range. Factors that can increase cost include complex foundations, crawl spaces, or very high radon levels.
Should I test for radon if I'm buying a home in Holland?
Yes. Radon testing should be part of every home purchase. A short-term radon test is typically included as part of the home inspection process and costs $150–$250. If elevated levels are found, you can negotiate mitigation as part of the sale.
Most Active Radon Markets in Iowa
Cities with the most user-submitted radon test data in the state.
