Lyman, SC Radon Mitigation and Testing

Q: What is the average radon level in Lyman, SC?

Based on 1 user-submitted tests, the average radon level is 4.00 pCi/L.

Q: What EPA Radon Zone is Lyman in?

Lyman is in Spartanburg County, EPA Zone 2.

Q: How much does radon mitigation cost in Lyman?

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

Avg: 4.00 pCi/L

Spartanburg County

EPA Zone 2

1 user test

Lyman in South Carolina's Spartanburg County recorded an average radon level of 4.0 pCi/L, which meets the EPA action threshold and warrants immediate attention. Located in the Spartanburg Metro area over Piedmont crystalline bedrock, the 29365 zip code features predominantly single-family homes with various foundation types. Given this elevated reading that reaches the EPA action level, homeowners should prioritize radon testing and consider mitigation systems where necessary.

4.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Lyman, SC Radon Mitigation

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

Lyman, SC Radon Testing

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

Lyman, South Carolina Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
4 pCi/L	Lyman, SC	0-20 Years	No Basement/All Slab	Mar 2025

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

Lyman Radon Facts

Key details about the radon risk profile for Lyman and the 29365 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Spartanburg County, SC

Zip Code

29365

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

4.00 pCi/L

User Tests Submitted

Lyman and the 29365 zip code are located in Spartanburg 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 Lyman, SC

What is the average radon level in Lyman, SC?

Based on 1 user-submitted test, the average radon level in Lyman is 4.00 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 Lyman in?

Lyman and the 29365 zip code are in Spartanburg 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 Lyman?

Radon mitigation in Lyman 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 Lyman?

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 Carolina

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

City	Avg User Radon Level	Submissions
Fort Mill	6.00 pCi/L	1
Greenville	5.00 pCi/L	1