Porcupine, SD Radon Mitigation and Testing

Q: What EPA Radon Zone is Porcupine in?

Porcupine is in Shannon County, EPA Zone 2.

Q: How much does radon mitigation cost in Porcupine?

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

Shannon County

EPA Zone 2

Remote community in Shannon County within the Pine Ridge Indian Reservation, Porcupine sits on South Dakota's mixed prairie where sedimentary bedrock and residual soils can influence radon levels. Current radon testing data for the 57772 zip code area is limited, making individual property assessment particularly important for this rural area. The community's housing, including both traditional homes and HUD housing units, should undergo professional radon testing to ensure safe indoor air quality regardless of foundation type.

Porcupine, SD Radon Mitigation

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

Porcupine, SD Radon Testing

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

Porcupine Radon Facts

Key details about the radon risk profile for Porcupine and the 57772 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Shannon County, SD

Zip Code

57772

Predicted Screening Level

2–4 pCi/L (Zone 2)

Porcupine and the 57772 zip code are located in Shannon County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Porcupine, SD

What EPA Radon Zone is Porcupine in?

Porcupine and the 57772 zip code are in Shannon 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 Porcupine?

Radon mitigation in Porcupine 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 Porcupine?

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

City	Avg User Radon Level	Submissions
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