Hatfield, MO Radon Mitigation and Testing

Q: What EPA Radon Zone is Hatfield in?

Hatfield is in Harrison County, EPA Zone 2.

Q: How much does radon mitigation cost in Hatfield?

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

Harrison County

EPA Zone 2

Positioned in Harrison County in north-central Missouri, Hatfield sits on glacial deposits over sedimentary bedrock typical of the region. This small agricultural community features rural housing with various foundation types, including homes with basements where radon can potentially concentrate. With no current radon data available for zip code 64458, homeowners should prioritize testing to understand their individual radon exposure risks.

Hatfield, MO Radon Mitigation

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

Hatfield, MO Radon Testing

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

Hatfield Radon Facts

Key details about the radon risk profile for Hatfield and the 64458 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Harrison County, MO

Zip Code

64458

Predicted Screening Level

2–4 pCi/L (Zone 2)

Hatfield and the 64458 zip code are located in Harrison County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Hatfield, MO

What EPA Radon Zone is Hatfield in?

Hatfield and the 64458 zip code are in Harrison County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.

How much does radon mitigation cost in Hatfield?

Radon mitigation in Hatfield 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 Hatfield?

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 Missouri

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

City	Avg User Radon Level	Submissions
Troy	8.50 pCi/L	4
Lees Summit	7.00 pCi/L	3
Columbia	3.00 pCi/L	2
House Springs	7.00 pCi/L	1
Kansas City	7.00 pCi/L	1
Springfield	7.00 pCi/L	1
Independence	5.00 pCi/L	1
Wentzville	No submissions	0