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New Haven, MO Radon Levels

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


New Haven, MO Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)
County Franklin County, MO
Zip Code 63068
Avg. User Level 5.00 pCi/L
User Tests 1

This Franklin County community in the St. Louis Metro area shows an average radon level of 5.0 pCi/L, exceeding the EPA action threshold. Located in the 63068 zip code area, New Haven's single test result indicates the need for mitigation consideration. Missouri's diverse geological landscape, including limestone and dolomite formations, contributes to variable radon conditions throughout the region.

5.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

New Haven, MO Radon Mitigation

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

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New Haven, MO Radon Levels

User-submitted radon test readings from homes in the New Haven area.

Radon LevelCityHome AgeFoundation
5 pCi/L New Haven, MO 21-50 Years Full Basement

Have a radon test result for New Haven? Submit your reading to help other homeowners.

Radon Readings Near New Haven, MO

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

CityDistanceAvg User LevelReadings
Union 14.3 mi 13.00 pCi/L 1
Labadie 19.4 mi 4.00 pCi/L 1
Bourbon 27.8 mi 6.00 pCi/L 1
Lake Saint Louis 28.3 mi 5.00 pCi/L 2
O Fallon 30.4 mi 7.75 pCi/L 4
Troy 32.8 mi 8.50 pCi/L 4
Leasburg 33.5 mi 4.00 pCi/L 1
Cuba 34.6 mi 5.00 pCi/L 1

Franklin County Radon Profile

EPA mapping assigns Franklin 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 3 cities in Franklin County average 7.33 pCi/L across 3 tests — 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 Franklin County home regardless of zone or a neighbor's results.

Radon FAQ for New Haven, MO

What is the average radon level in New Haven, MO?
Based on 1 user-submitted test, the average radon level in New Haven is 5.00 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 New Haven in?
New Haven and the 63068 zip code are in Franklin 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 New Haven?
Radon mitigation in New Haven 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 New Haven?
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.