Evans, CO Radon Mitigation and Testing

Q: What is the average radon level in Evans, CO?

Based on 3 user-submitted tests, the average radon level is 6.30 pCi/L.

Q: What EPA Radon Zone is Evans in?

Evans is in Weld County, EPA Zone 1.

Q: How much does radon mitigation cost in Evans?

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

Avg: 6.30 pCi/L

Weld County

EPA Zone 1

3 user tests

Located in Weld County within the Greeley Metro area, Evans sits on Colorado's High Plains where uranium-bearing soils contribute to elevated radon potential. Homes in zip code 80620 show an average radon level of 6.33 pCi/L, which exceeds the EPA action level of 4.0 pCi/L. Testing is highly recommended for all residences in this community.

6.30

pCi/L average

Above EPA Action Level

Based on 3 user-submitted radon tests for homes in Evans, CO. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Evans, CO Radon Mitigation

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

Evans, CO Radon Testing

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

Evans, Colorado Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
5 pCi/L	Evans, CO	21-50 Years	Partial Basement	Aug 2024
6 pCi/L	Evans, CO	21-50 Years	Full Basement	Feb 2022
8 pCi/L	Evans, CO	0-20 Years	Full Basement	Jul 2016

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

Evans Radon Facts

Key details about the radon risk profile for Evans and the 80620 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Weld County, CO

Zip Code

80620

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

6.30 pCi/L

User Tests Submitted

Evans and the 80620 zip code are located in Weld 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 Evans, CO

What is the average radon level in Evans, CO?

Based on 3 user-submitted tests, the average radon level in Evans is 6.30 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 Evans in?

Evans and the 80620 zip code are in Weld 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 Evans?

Radon mitigation in Evans 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 Evans?

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