Valley City, ND Radon Mitigation and Testing

Q: What is the average radon level in Valley City, ND?

Based on 1 user-submitted tests, the average radon level is 9.00 pCi/L.

Q: What EPA Radon Zone is Valley City in?

Valley City is in Barnes County, EPA Zone 1.

Q: How much does radon mitigation cost in Valley City?

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

Avg: 9.00 pCi/L

Barnes County

EPA Zone 1

1 user test

Located in Barnes County in southeastern North Dakota, Valley City has recorded an average radon level of 9.0 pCi/L from available testing, which significantly exceeds the EPA action threshold of 4.0 pCi/L. This elevated reading reflects the area's glacial till deposits over uranium-bearing shale formations that create high radon potential. Given these concerning levels, all residents should prioritize radon testing and consider mitigation systems if elevated readings are confirmed.

9.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Valley City, ND Radon Mitigation

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

Valley City, ND Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Valley City, North Dakota Radon Levels

User-submitted radon test readings from homes in the Valley City area.

Radon Level	City	Home Age	Foundation	Submitted
9 pCi/L	Valley City, ND	51-99 Years	Full Basement	May 2025

Have a radon test result for Valley City? Submit your reading to help other homeowners.

Valley City Radon Facts

Key details about the radon risk profile for Valley City and the 58072 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Barnes County, ND

Zip Code

58072

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

9.00 pCi/L

User Tests Submitted

Valley City and the 58072 zip code are located in Barnes 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 Valley City, ND

What is the average radon level in Valley City, ND?

Based on 1 user-submitted test, the average radon level in Valley City is 9.00 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 Valley City in?

Valley City and the 58072 zip code are in Barnes 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 Valley City?

Radon mitigation in Valley City 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 Valley City?

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 North Dakota

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Grand Forks	13.50 pCi/L	8
Grafton	7.67 pCi/L	3
Dickinson	6.00 pCi/L	3
Watford City	5.50 pCi/L	2
Bismarck	No submissions	0