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Arvada, CO Radon Levels

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


Arvada, CO Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Jefferson County, CO
Zip Code 80002
Avg. User Level 5.00 pCi/L
User Tests 2

This Denver Metro suburb in Jefferson County shows an average radon level of 5.0 pCi/L, which exceeds the EPA action threshold of 4.0 pCi/L. Arvada's position along the Colorado Front Range, with uranium-bearing granite bedrock beneath prairie soils, contributes to elevated radon potential across zip codes 80002-80007. The community's predominantly single-family homes with full basements require vigilant radon testing and mitigation when levels exceed safe thresholds.

5.00
pCi/L average
Above EPA Action Level

Based on 2 user-submitted radon tests for homes in Arvada, CO. The EPA recommends taking action at or above 4.0 pCi/L.

0
4.0 EPA
10+

Arvada, CO Radon Mitigation

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

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Arvada, CO Radon Levels

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

Radon LevelCityHome AgeFoundation
5 pCi/L Arvada, CO 0-20 Years No Basement/All Crawl Space
5 pCi/L Arvada, CO 21-50 Years

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

Radon Readings Near Arvada, CO

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

CityDistanceAvg User LevelReadings
Broomfield 7.1 mi 5.00 pCi/L 1
Denver 9.3 mi 6.22 pCi/L 9
Commerce City 10.7 mi 9.00 pCi/L 1
Lafayette 11.7 mi 8.00 pCi/L 2
Boulder 14.9 mi 12.00 pCi/L 1
Morrison 15.3 mi 5.00 pCi/L 3
Erie 16.1 mi 20.00 pCi/L 1
Englewood 17.2 mi 11.00 pCi/L 2

Jefferson County Radon Profile

Jefferson 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 6 cities in Jefferson County average 7.50 pCi/L across 12 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 Jefferson County to test, as levels can differ between neighboring homes.

Radon FAQ for Arvada, CO

What is the average radon level in Arvada, CO?
Based on 2 user-submitted tests, the average radon level in Arvada is 5.00 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 Arvada in?
Arvada and the 80002 zip code are in Jefferson 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 Arvada?
Radon mitigation in Arvada 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 Arvada?
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.