Gray, LA Radon Mitigation and Testing

Q: What EPA Radon Zone is Gray in?

Gray is in Terrebonne Parish County, EPA Zone 3.

Q: How much does radon mitigation cost in Gray?

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

Terrebonne Parish County

EPA Zone 3

Located in Terrebonne Parish as part of the Houma metropolitan area, Gray sits on Louisiana's coastal plain where alluvial deposits and marsh soils generally produce lower radon levels. Testing data for zip code 70359 is currently limited, though the area's sedimentary geology typically results in minimal radon concerns. Homeowners should still consider testing, as individual property conditions and construction methods can occasionally create radon accumulation even in low-risk geological areas.

Gray, LA Radon Mitigation

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

Gray, LA Radon Testing

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

Gray Radon Facts

Key details about the radon risk profile for Gray and the 70359 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Terrebonne Parish County, LA

Zip Code

70359

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Gray and the 70359 zip code are located in Terrebonne Parish County, which has an EPA assigned Radon Zone of 3. A radon zone of 3 predicts an average indoor radon screening level less than 2 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Gray, LA

What EPA Radon Zone is Gray in?

Gray and the 70359 zip code are in Terrebonne Parish 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 Gray?

Radon mitigation in Gray 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 Gray?

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 Louisiana

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

City	Avg User Radon Level	Submissions
New Orleans	8.00 pCi/L	1