Amherst, CO Radon Levels

Q: What EPA Radon Zone is Amherst in?

Amherst is in Phillips County, EPA Zone 1.

Q: How much does radon mitigation cost in Amherst?

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

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

Amherst, CO Radon Facts

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

County Phillips County, CO

Zip Code 80721

Positioned in Phillips County in northeastern Colorado, Amherst sits on Great Plains sediments over sedimentary bedrock. Testing data for zip code 80721 is currently unavailable, though Colorado's high elevation and geological diversity can create unexpected radon concentrations. Rural homeowners should conduct testing given the state's overall high radon potential.

10.00

pCi/L area average

Above EPA Action Level

Nearby homeowner readings average 10.00 pCi/L, based on 1 test from 1 nearby city. No readings have been submitted for Amherst yet, so the closest recorded data is shown as a benchmark. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Amherst, 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 Amherst, CO

No homeowner tests have been submitted for Amherst 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
Yuma	47.5 mi	10.00 pCi/L	1

Phillips County Radon Profile

The bedrock and soils beneath Phillips County are classified by the EPA as Radon Zone 1, the highest-risk tier, with predicted average indoor screening levels above 4 pCi/L. User-submitted readings are still sparse within Phillips County itself, so the nearby measurements shown on this page provide the closest real-world picture of local radon conditions. 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 Phillips County.

Radon FAQ for Amherst, CO

What EPA Radon Zone is Amherst in?

Amherst and the 80721 zip code are in Phillips 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 Amherst?

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

Radon mitigation in Amherst 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 Amherst?

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.