Mount Hermon, LA Radon Mitigation and Testing

Q: What EPA Radon Zone is Mount Hermon in?

Mount Hermon is in Washington Parish County, EPA Zone 3.

Q: How much does radon mitigation cost in Mount Hermon?

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

Washington Parish County

EPA Zone 3

Situated in Washington Parish north of Lake Pontchartrain, Mount Hermon sits on coastal plain sediments that typically produce lower radon levels than Louisiana's northern parishes. However, testing data for zip code 70450 remains sparse, and homeowners should still test since radon can accumulate in any home regardless of regional geology. Individual soil conditions and home construction details ultimately determine each property's radon risk.

Mount Hermon, LA Radon Mitigation

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

Mount Hermon, LA Radon Testing

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

Mount Hermon Radon Facts

Key details about the radon risk profile for Mount Hermon and the 70450 zip code area.

EPA Radon Zone

Zone 3 — Low Risk

County

Washington Parish County, LA

Zip Code

70450

Predicted Screening Level

< 2.0 pCi/L (Zone 3)

Mount Hermon and the 70450 zip code are located in Washington 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 Mount Hermon, LA

What EPA Radon Zone is Mount Hermon in?

Mount Hermon and the 70450 zip code are in Washington 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 Mount Hermon?

Radon mitigation in Mount Hermon 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 Mount Hermon?

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