Sour Lake, TX Radon Levels

Q: What EPA Radon Zone is Sour Lake in?

Sour Lake is in Hardin County, EPA Zone 3.

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

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

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

Sour Lake, TX Radon Facts

EPA Radon Zone Zone 3 — Low Risk < 2.0 pCi/L (Zone 3)

County Hardin County, TX

Zip Code 77659

Positioned in Hardin County within the Beaumont Metro area of southeast Texas, Sour Lake occupies zip code 77659 where Gulf Coastal Plain sediments typically maintain lower radon levels. The area's flat terrain and clay-rich soils generally limit radon migration, though testing data remains limited. Even in lower-risk regions like the Texas Gulf Coast, individual properties can occasionally surprise with elevated readings.

Sour Lake, TX Radon Mitigation

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

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Radon FAQ for Sour Lake, TX

What EPA Radon Zone is Sour Lake in?

Sour Lake and the 77659 zip code are in Hardin County, which has an EPA assigned Radon Zone of 3. A zone of 3 predicts an average indoor radon screening level less than 2 pCi/L.

How much does radon mitigation cost in Sour Lake?

Radon mitigation in Sour Lake 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 Sour Lake?

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 Texas

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

City	Avg User Radon Level	Submissions
Lubbock	12.70 pCi/L	10
San Antonio	6.57 pCi/L	7
Austin	6.14 pCi/L	7
Dallas	8.00 pCi/L	5
Abilene	4.50 pCi/L	2
Houston	3.50 pCi/L	2
Plano	6.00 pCi/L	1
Frisco	3.00 pCi/L	1
Nacogdoches	No submissions	0