Holliday, MO Radon Levels

Q: What EPA Radon Zone is Holliday in?

Holliday is in Monroe County, EPA Zone 2.

Q: How much does radon mitigation cost in Holliday?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Check local Holliday radon levels and find certified testing and mitigation professionals to keep your home safe

Holliday, MO Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Monroe County, MO

Zip Code 65258

Small-town Monroe County hosts Holliday in Missouri's glacial till region, where prairie soils overlay limestone bedrock formations. Currently lacking radon testing data for zip code 65258, this rural community's residents should prioritize home testing to establish safety baselines. The area's mix of century-old farmhouses and modern rural construction may show varying radon infiltration patterns depending on foundation materials and maintenance.

4.89

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 4.89 pCi/L, based on 9 tests from 6 nearby cities. No readings have been submitted for Holliday yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Holliday, MO Radon Mitigation

Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.

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Radon Readings Near Holliday, MO

No homeowner tests have been submitted for Holliday yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Mexico	25.6 mi	4.00 pCi/L	1
Hallsville	27.1 mi	5.00 pCi/L	2
Palmyra	37.9 mi	8.00 pCi/L	1
Columbia	38.6 mi	3.00 pCi/L	2
Hannibal	42.5 mi	6.00 pCi/L	2
Boonville	49.5 mi	4.00 pCi/L	1

Monroe County Radon Profile

EPA mapping assigns Monroe County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Direct test data for Monroe County remains limited, so the closest neighboring readings are used here to represent the radon conditions homeowners are likely to encounter. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Monroe County home regardless of zone or a neighbor's results.

Radon FAQ for Holliday, MO

What EPA Radon Zone is Holliday in?

Holliday and the 65258 zip code are in Monroe County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

Why are radon readings shown from areas near Holliday?

No homeowner radon tests have been submitted for Holliday yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Monroe County average—are the best available indicator of local conditions until Holliday homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Holliday?

Radon mitigation in Holliday 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 Holliday?

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.