Lake Toxaway, NC Radon Mitigation and Testing

Q: What is the average radon level in Lake Toxaway, NC?

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

Q: What EPA Radon Zone is Lake Toxaway in?

Lake Toxaway is in Transylvania County, EPA Zone 1.

Q: How much does radon mitigation cost in Lake Toxaway?

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

Transylvania County

EPA Zone 1

1 user test

Lake Toxaway is located in Transylvania County, North Carolina. With 1 user-submitted readings averaging 4.00 pCi/L, the area exceeds the EPA's 4.0 pCi/L action threshold, and testing is strongly recommended for homeowners in the 28747 zip code.

4.00

pCi/L average

Above EPA Action Level

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

4.0 EPA

10+

Lake Toxaway, NC Radon Mitigation

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

Lake Toxaway, NC Radon Testing

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

Lake Toxaway, North Carolina Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
4 pCi/L	Lake Toxaway, NC	—	—	Mar 2026

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

Lake Toxaway Radon Facts

Key details about the radon risk profile for Lake Toxaway and the 28747 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Transylvania County, NC

Zip Code

28747

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

4.00 pCi/L

User Tests Submitted

Lake Toxaway and the 28747 zip code are located in Transylvania 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 Lake Toxaway, NC

What is the average radon level in Lake Toxaway, NC?

Based on 1 user-submitted test, the average radon level in Lake Toxaway 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 Lake Toxaway in?

Lake Toxaway and the 28747 zip code are in Transylvania 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 Lake Toxaway?

Radon mitigation in Lake Toxaway 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 Lake Toxaway?

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 Carolina

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

City	Avg User Radon Level	Submissions
Murphy	12.83 pCi/L	6
Blowing Rock	10.17 pCi/L	6
Brevard	7.50 pCi/L	4
Cary	5.00 pCi/L	4
Highlands	4.50 pCi/L	4
Mooresville	4.00 pCi/L	4
Banner Elk	9.33 pCi/L	3
Charlotte	7.33 pCi/L	3
Denver	4.33 pCi/L	3
Hendersonville	9.00 pCi/L	2
Wake Forest	4.50 pCi/L	2
Apex	3.50 pCi/L	2
Huntersville	3.50 pCi/L	2
Raleigh	9.00 pCi/L	1
Fayetteville	5.00 pCi/L	1
Waxhaw	4.00 pCi/L	1
Chapel Hill	3.00 pCi/L	1
Clayton	No submissions	0
Fuquay Varina	No submissions	0
Holly Springs	No submissions	0