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Olathe, CO Radon Levels

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


Olathe, CO Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Montrose County, CO
Zip Code 81425
Avg. User Level 5.00 pCi/L
User Tests 2

Nestled in Montrose County in Colorado's Western Slope region, Olathe sits amid uranium-rich geological formations that contribute to elevated radon potential. Recent testing shows an average radon level of 5.0 pCi/L, which exceeds the EPA action threshold of 4.0 pCi/L. Given the area's geology and Zone 1 EPA classification, homes in zip code 81425 should be tested and mitigated when necessary.

5.00
pCi/L average
Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Olathe, CO. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Olathe, CO Radon Mitigation

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

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Olathe, CO Radon Levels

User-submitted radon test readings from homes in the Olathe area.

Radon LevelCityHome AgeFoundation
5 pCi/L Olathe, CO 21-50 Years No Basement/All Slab

Have a radon test result for Olathe? Submit your reading to help other homeowners.

Radon Readings Near Olathe, CO

Compare radon levels in Olathe with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Delta 10.2 mi 7.00 pCi/L 3
Montrose 13.5 mi 9.25 pCi/L 8
Crawford 21.4 mi 8.00 pCi/L 1
Cedaredge 22.0 mi 4.00 pCi/L 1
Paonia 28.1 mi 6.00 pCi/L 1
Grand Junction 43.9 mi 7.86 pCi/L 7
Telluride 46.4 mi 6.80 pCi/L 5

Montrose County Radon Profile

Montrose County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 3 cities in Montrose County average 8.36 pCi/L across 11 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. Since radon is the second leading cause of lung cancer nationally, the EPA urges every household in Montrose County to test, as levels can differ between neighboring homes.

Radon FAQ for Olathe, CO

What is the average radon level in Olathe, CO?
Based on 2 user-submitted tests, the average radon level in Olathe is 5.00 pCi/L. This exceeds the EPA's recommended action level of 4.0 pCi/L, and radon testing is recommended for all homes in the area.
What EPA Radon Zone is Olathe in?
Olathe and the 81425 zip code are in Montrose 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.
How much does radon mitigation cost in Olathe?
Radon mitigation in Olathe 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 Olathe?
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.