South Heart, ND Radon Mitigation and Testing

Q: What is the average radon level in South Heart, ND?

Based on 1 user-submitted tests, the average radon level is 18.00 pCi/L.

Q: What EPA Radon Zone is South Heart in?

South Heart is in Stark County, EPA Zone 1.

Q: How much does radon mitigation cost in South Heart?

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

Avg: 18.00 pCi/L

Stark County

EPA Zone 1

1 user test

Rural South Heart in Stark County recorded an exceptionally high average radon level of 18.0 pCi/L, which dramatically exceeds the EPA action level and ranks among North Dakota's most elevated readings. This western North Dakota community sits in the Williston Basin region where Pierre shale and other geological formations contribute to significant radon production. Given this concerning level in zip code 58655 and the area's geology, immediate professional testing and mitigation are essential for all South Heart residents.

18.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

South Heart, ND Radon Mitigation

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

South Heart, ND Radon Testing

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

South Heart, North Dakota Radon Levels

User-submitted radon test readings from homes in the South Heart area.

Radon Level	City	Home Age	Foundation	Submitted
18 pCi/L	South Heart, ND	21-50 Years	Full Basement	Jan 2019

Have a radon test result for South Heart? Submit your reading to help other homeowners.

South Heart Radon Facts

Key details about the radon risk profile for South Heart and the 58655 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Stark County, ND

Zip Code

58655

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

18.00 pCi/L

User Tests Submitted

South Heart and the 58655 zip code are located in Stark 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 South Heart, ND

What is the average radon level in South Heart, ND?

Based on 1 user-submitted test, the average radon level in South Heart is 18.00 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 South Heart in?

South Heart and the 58655 zip code are in Stark 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 South Heart?

Radon mitigation in South Heart 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 South Heart?

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