Washington, LA Radon Mitigation and Testing

Q: What EPA Radon Zone is Washington in?

Washington is in St Landry Parish County, EPA Zone Unknown.

Q: How much does radon mitigation cost in Washington?

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

St Landry Parish County

EPA Zone Unknown

Washington, LA resides in St Landry Parish County, which has an EPA assigned Radon Zone of Unknown. A zone of Unknown does not have sufficient data for classification. Testing is recommended for all homes in the 70589 zip code area.

Washington, LA Radon Mitigation

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

Washington, LA Radon Testing

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

Washington Radon Facts

Key details about the radon risk profile for Washington and the 70589 zip code area.

EPA Radon Zone

Unknown

County

St Landry Parish County, LA

Zip Code

70589

Predicted Screening Level

Unknown

Washington and the 70589 zip code are located in St Landry Parish County, which has an EPA assigned Radon Zone of Unknown. A radon zone of Unknown does not have sufficient data for classification. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Washington, LA

What EPA Radon Zone is Washington in?

Washington and the 70589 zip code are in St Landry Parish County, which has an EPA assigned Radon Zone of Unknown. A zone of Unknown does not have sufficient data for classification.

How much does radon mitigation cost in Washington?

Radon mitigation in Washington 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 Washington?

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