Holt, MO Radon Levels

Q: What EPA Radon Zone is Holt in?

Holt is in Clay County, EPA Zone 1.

Q: Why are radon readings shown from areas near Holt?

No homeowner radon tests have been submitted for Holt yet, so readings from the closest cities and the Clay County average are used as the best available indicator of local conditions. The EPA recommends testing every individual home.

Q: How much does radon mitigation cost in Holt?

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

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

Holt, MO Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)

County Clay County, MO

Zip Code 64048

Located in Clay County within the Kansas City Metro area, Holt currently has limited radon testing data available for homeowner reference. This zip code 64048 community sits on Missouri River valley alluvial deposits over Pennsylvanian limestone and shale, geological formations that can produce variable radon conditions depending on soil permeability and bedrock fracturing. Area residents should conduct professional testing given the region's diverse geology and mix of housing foundation types.

6.00

pCi/L area average

Above EPA Action Level

Clay County average: 6.00 pCi/L, based on 3 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Holt itself yet, so this county figure is the closest available benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Holt, MO Radon Mitigation

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

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Radon Readings Near Holt, MO

No homeowner tests have been submitted for Holt yet. The closest cities with user-submitted radon data are shown below — explore them to gauge local conditions. Radon varies by home, so testing is the only way to know your level.

City	Distance	Avg User Level	Readings
Kearney	4.4 mi	5.00 pCi/L	1
Liberty	12.9 mi	6.50 pCi/L	2
Buckner	22.4 mi	6.00 pCi/L	1
Independence	23.0 mi	5.00 pCi/L	1
Richmond	23.2 mi	5.00 pCi/L	1
Kansas City	24.4 mi	7.00 pCi/L	1
Blue Springs	28.9 mi	14.00 pCi/L	1
Grain Valley	29.0 mi	14.00 pCi/L	2

Clay County Radon Profile

The bedrock and soils beneath Clay County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. Homeowner-submitted tests from 2 cities in Clay County average 6.00 pCi/L across 3 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Radon is the second leading cause of lung cancer in the United States, and a short-term test is the only way to confirm a specific home's level in Clay County.

Radon FAQ for Holt, MO

What EPA Radon Zone is Holt in?

Holt and the 64048 zip code are in Clay County, which has an EPA assigned Radon Zone of 1. A zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L.

Why are radon readings shown from areas near Holt?

No homeowner radon tests have been submitted for Holt yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Clay County average—are the best available indicator of local conditions until Holt homeowners submit their own results. The EPA still recommends testing every individual home, since levels can vary significantly from house to house.

How much does radon mitigation cost in Holt?

Radon mitigation in Holt 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 Holt?

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.