Arapahoe, CO Radon Mitigation and Testing

Q: What EPA Radon Zone is Arapahoe in?

Arapahoe is in Cheyenne County, EPA Zone 1.

Q: How much does radon mitigation cost in Arapahoe?

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

Cheyenne County

EPA Zone 1

Located in Cheyenne County in far eastern Colorado, Arapahoe sits on High Plains geology in an EPA Zone 1 area with elevated radon potential. The community's location on sedimentary formations with underlying shale and limestone can contribute to radon gas production and migration. With no current testing data available for the 80802 zip code, homeowners in this rural area should prioritize radon testing given Colorado's generally higher radon levels.

Arapahoe, CO Radon Mitigation

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

Arapahoe, CO Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Arapahoe Radon Facts

Key details about the radon risk profile for Arapahoe and the 80802 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Cheyenne County, CO

Zip Code

80802

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Arapahoe and the 80802 zip code are located in Cheyenne County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Arapahoe, CO

What EPA Radon Zone is Arapahoe in?

Arapahoe and the 80802 zip code are in Cheyenne 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 Arapahoe?

Radon mitigation in Arapahoe 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 Arapahoe?

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.

Most Active Radon Markets in Colorado

Cities with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
Fairplay	12.00 pCi/L	9
Crested Butte	8.56 pCi/L	9
Denver	6.22 pCi/L	9
Montrose	9.25 pCi/L	8
Gunnison	7.38 pCi/L	8
Buena Vista	12.57 pCi/L	7
Pueblo	10.67 pCi/L	6
Grand Junction	8.17 pCi/L	6
Bayfield	6.00 pCi/L	6
Canon City	10.80 pCi/L	5
Aurora	7.40 pCi/L	5
Windsor	7.00 pCi/L	5
Telluride	6.80 pCi/L	5
Parker	5.40 pCi/L	5
Salida	15.50 pCi/L	4
Johnstown	9.50 pCi/L	4
Granby	9.00 pCi/L	4
Longmont	8.00 pCi/L	4
Edwards	6.75 pCi/L	4
Mancos	6.00 pCi/L	4