Silt, CO Radon Levels

Q: What EPA Radon Zone is Silt in?

Silt is in Garfield County, EPA Zone 1.

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

No homeowner radon tests have been submitted for Silt yet, so readings from the closest cities and the Garfield 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 Silt?

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

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

Silt, CO Radon Facts

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

County Garfield County, CO

Zip Code 81652

Nestled in Garfield County along Colorado's Western Slope, Silt sits within EPA Zone 1 where radon levels can be elevated due to uranium-rich geological formations. Testing data for this community remains limited, making it essential for homeowners in the 81652 area to conduct their own radon measurements. Given the region's geological characteristics, professional radon testing is strongly recommended for all residential properties.

6.33

pCi/L area average

Above EPA Action Level

Garfield County average: 6.33 pCi/L, based on 3 user-submitted tests across 3 cities in the county. No homeowner readings have been submitted for Silt 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+

Silt, CO 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 Silt, CO

No homeowner tests have been submitted for Silt 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
Rifle	7.3 mi	7.00 pCi/L	1
New Castle	8.1 mi	4.00 pCi/L	1
Glenwood Springs	18.2 mi	8.00 pCi/L	1
Gypsum	38.8 mi	5.00 pCi/L	1
Meeker	38.9 mi	4.00 pCi/L	1
Cedaredge	43.2 mi	4.00 pCi/L	1
Paonia	44.2 mi	6.00 pCi/L	1
Edwards	48.1 mi	6.75 pCi/L	4

Garfield County Radon Profile

The bedrock and soils beneath Garfield 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 3 cities in Garfield County average 6.33 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 Garfield County.

Radon FAQ for Silt, CO

What EPA Radon Zone is Silt in?

Silt and the 81652 zip code are in Garfield 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 Silt?

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

Radon mitigation in Silt 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 Silt?

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.