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Beresford, SD Radon Levels

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


Beresford, SD Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Union County, SD
Zip Code 57004
Avg. User Level 11.00 pCi/L
User Tests 1

Located in southeastern South Dakota's Union County within the Sioux Falls Metro area, Beresford shows a concerning average radon level of 11.0 pCi/L from 1 test, significantly exceeding the EPA action level. This reading in zip code 57004 reflects the region's glacial till deposits over Pierre shale, which can produce very high radon concentrations. Residents should prioritize immediate testing and mitigation consultation, as this level poses serious long-term health risks.

11.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Beresford, SD Radon Mitigation

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Beresford, SD Radon Levels

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

Radon LevelCityHome AgeFoundation
11 pCi/L Beresford, SD 51-99 Years Full Basement

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

Radon FAQ for Beresford, SD

What is the average radon level in Beresford, SD?
Based on 1 user-submitted test, the average radon level in Beresford is 11.00 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 Beresford in?
Beresford and the 57004 zip code are in Union 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 Beresford?
Radon mitigation in Beresford 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 Beresford?
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 South Dakota

Cities in South Dakota with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
Spearfish 7.75 pCi/L 4
Rapid City 10.50 pCi/L 2
Aberdeen 8.50 pCi/L 2
Sioux Falls 6.00 pCi/L 2
Watertown 6.00 pCi/L 2