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Lyons, CO Radon Levels

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


Lyons, CO Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Boulder County, CO
Zip Code 80540
Avg. User Level 14.50 pCi/L
User Tests 2

Situated in Boulder County along Colorado's Front Range foothills, Lyons shows significantly elevated radon levels with an average of 14.5 pCi/L from recent testing. This reading substantially exceeds the EPA action level, reflecting the area's uranium-rich granite bedrock and mountain geology typical of zip code 80540. Immediate radon mitigation is strongly recommended for all residents given these concerning levels.

14.50
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Lyons, CO Radon Mitigation

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

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Lyons, CO Radon Levels

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

Radon LevelCityHome AgeFoundation
17 pCi/L Lyons, CO 51-99 Years Partial Basement
12 pCi/L Lyons, CO 0-20 Years No Basement/All Slab

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

Radon Readings Near Lyons, CO

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

CityDistanceAvg User LevelReadings
Berthoud 12.3 mi 12.00 pCi/L 2
Longmont 14.4 mi 8.00 pCi/L 4
Boulder 15.7 mi 12.00 pCi/L 1
Loveland 17.0 mi 4.50 pCi/L 2
Erie 18.1 mi 20.00 pCi/L 1
Lafayette 20.3 mi 8.00 pCi/L 2
Estes Park 21.4 mi 6.50 pCi/L 2
Johnstown 22.2 mi 9.50 pCi/L 4

Boulder County Radon Profile

Boulder 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 4 cities in Boulder County average 10.17 pCi/L across 6 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 Boulder County to test, as levels can differ between neighboring homes.

Radon FAQ for Lyons, CO

What is the average radon level in Lyons, CO?
Based on 2 user-submitted tests, the average radon level in Lyons is 14.50 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 Lyons in?
Lyons and the 80540 zip code are in Boulder 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 Lyons?
Radon mitigation in Lyons 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 Lyons?
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.