Chimney Rock, CO Radon Levels

Q: What EPA Radon Zone is Chimney Rock in?

Chimney Rock is in Archuleta County, EPA Zone 2.

Q: How much does radon mitigation cost in Chimney Rock?

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

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

Chimney Rock, CO Radon Facts

EPA Radon Zone Zone 2 — Moderate Risk 2–4 pCi/L (Zone 2)

County Archuleta County, CO

Zip Code 81127

High in Colorado's Archuleta County mountains, Chimney Rock's EPA Zone 2 designation reflects moderate radon potential in this elevated terrain. The area's complex geology, combining sedimentary formations with volcanic activity, can create variable radon conditions from property to property. With testing data currently limited for this remote community in zip code 81127, homeowners should conduct professional radon testing regardless of altitude or home type.

10.50

pCi/L area average

Above EPA Action Level

Archuleta County average: 10.50 pCi/L, based on 2 user-submitted tests across 2 cities in the county. No homeowner readings have been submitted for Chimney Rock 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+

Chimney Rock, CO Radon Mitigation

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

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Archuleta County Radon Profile

The soils and bedrock of Archuleta County place it in EPA Radon Zone 2, a moderate-risk classification with predicted indoor averages of 2 to 4 pCi/L. Homeowner-submitted tests from 2 cities in Archuleta County average 10.50 pCi/L across 2 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 Archuleta County to test, as levels can differ between neighboring homes.

Radon FAQ for Chimney Rock, CO

What EPA Radon Zone is Chimney Rock in?

Chimney Rock and the 81127 zip code are in Archuleta 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.

Why are radon readings shown from areas near Chimney Rock?

No homeowner radon tests have been submitted for Chimney Rock yet. Because radon is driven by regional soil and bedrock geology, readings from the closest cities—and the Archuleta County average—are the best available indicator of local conditions until Chimney Rock 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 Chimney Rock?

Radon mitigation in Chimney Rock 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 Chimney Rock?

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.