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Holts Summit, MO Radon Levels

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


Holts Summit, MO Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Callaway County, MO
Zip Code 65043
Avg. User Level 4.00 pCi/L
User Tests 1

Holts Summit in Callaway County shows an average radon level of 4.0 pCi/L, exactly at the EPA action threshold where mitigation consideration becomes important for homeowner safety. This Jefferson City Metro community in zip code 65043 sits on Missouri River bluff formations of Ordovician limestone and dolomite, geological conditions that can concentrate radon gas in residential foundations. Given this threshold reading, professional testing and potential mitigation consultation should be priorities for area residents.

4.00
pCi/L average
Above EPA Action Level

Based on 1 user-submitted radon test for homes in Holts Summit, MO. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Holts Summit, MO Radon Mitigation

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

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Holts Summit, MO Radon Levels

User-submitted radon test readings from homes in the Holts Summit area.

Radon LevelCityHome AgeFoundation
4 pCi/L Holts Summit, MO 0-20 Years Full Basement

Have a radon test result for Holts Summit? Submit your reading to help other homeowners.

Radon Readings Near Holts Summit, MO

Compare radon levels in Holts Summit with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Jefferson City 6.6 mi 6.00 pCi/L 1
Columbia 23.0 mi 3.00 pCi/L 2
Hallsville 33.2 mi 5.00 pCi/L 2
Mexico 39.1 mi 4.00 pCi/L 1
Boonville 40.5 mi 4.00 pCi/L 1
Gravois Mills 46.2 mi 7.00 pCi/L 1
New Haven 48.1 mi 5.00 pCi/L 1
Sunrise Beach 49.0 mi 5.00 pCi/L 2

Callaway County Radon Profile

EPA mapping assigns Callaway County to Radon Zone 2, indicating moderate predicted indoor screening levels in the 2 to 4 pCi/L range based on regional geology. Homeowner-submitted tests from 1 city in Callaway County average 4.00 pCi/L across 1 test — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Callaway County home regardless of zone or a neighbor's results.

Radon FAQ for Holts Summit, MO

What is the average radon level in Holts Summit, MO?
Based on 1 user-submitted test, the average radon level in Holts Summit is 4.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Holts Summit in?
Holts Summit and the 65043 zip code are in Callaway 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.
How much does radon mitigation cost in Holts Summit?
Radon mitigation in Holts Summit 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 Holts Summit?
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.