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Evans, CO Radon Levels

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


Evans, CO Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Weld County, CO
Zip Code 80620
Avg. User Level 6.30 pCi/L
User Tests 3

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.

0
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.

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Evans, CO Radon Levels

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

Radon LevelCityHome AgeFoundation
5 pCi/L Evans, CO 21-50 Years Partial Basement
6 pCi/L Evans, CO 21-50 Years Full Basement
8 pCi/L Evans, CO 0-20 Years Full Basement

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

Radon Readings Near Evans, CO

Compare radon levels in Evans with the closest nearby cities that have user-submitted test data.

CityDistanceAvg User LevelReadings
Greeley 1.6 mi 4.67 pCi/L 3
Eaton 10.2 mi 7.00 pCi/L 1
Johnstown 12.3 mi 9.50 pCi/L 4
Windsor 12.8 mi 7.00 pCi/L 5
Loveland 20.8 mi 4.50 pCi/L 2
Berthoud 22.2 mi 12.00 pCi/L 2
Fort Collins 22.7 mi 5.50 pCi/L 2
Longmont 25.1 mi 8.00 pCi/L 4

Weld County Radon Profile

Weld County falls in EPA Radon Zone 1, meaning the local uranium-bearing geology is predicted to drive average indoor radon screening levels above the EPA's 4 pCi/L action threshold. Homeowner-submitted tests from 7 cities in Weld County average 8.05 pCi/L across 20 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 Weld County to test, as levels can differ between neighboring homes.

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.