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Delta, CO Radon Levels

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


Delta, CO Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Delta County, CO
Zip Code 81416
Avg. User Level 7.00 pCi/L
User Tests 3

Situated in Delta County, this western Colorado community shows an average radon level of 7.0 pCi/L based on local testing data, significantly exceeding the EPA action threshold. The area's high desert geology and uranium-bearing rock formations contribute to elevated readings, with individual homes ranging from 5.0 to 9.0 pCi/L. Residents should prioritize radon mitigation given these consistently elevated levels throughout the 81416 zip code area.

7.00
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Delta, CO Radon Mitigation

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

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Delta, CO Radon Levels

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

Radon LevelCityHome AgeFoundation
9 pCi/L Delta, CO 0-20 Years No Basement/All Crawl Space
5 pCi/L Delta, CO 21-50 Years Partial Basement
7 pCi/L Delta, CO 0-20 Years No Basement/All Slab

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

Radon Readings Near Delta, CO

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

CityDistanceAvg User LevelReadings
Olathe 10.2 mi 5.00 pCi/L 2
Cedaredge 14.2 mi 4.00 pCi/L 1
Montrose 23.7 mi 9.25 pCi/L 8
Crawford 24.2 mi 8.00 pCi/L 1
Paonia 26.4 mi 6.00 pCi/L 1
Grand Junction 34.6 mi 7.86 pCi/L 7

Delta County Radon Profile

Because of its underlying geology, Delta County is mapped as EPA Radon Zone 1 — the most elevated classification — where predicted indoor screening averages exceed 4 pCi/L. Homeowner-submitted tests from 3 cities in Delta County average 6.20 pCi/L across 5 tests — above the EPA's 4 pCi/L action level, reinforcing the need for testing across the county. As the second leading cause of lung cancer in the U.S., radon warrants testing in every Delta County home regardless of zone or a neighbor's results.

Radon FAQ for Delta, CO

What is the average radon level in Delta, CO?
Based on 3 user-submitted tests, the average radon level in Delta is 7.00 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 Delta in?
Delta and the 81416 zip code are in Delta 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 Delta?
Radon mitigation in Delta 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 Delta?
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.