Denver, NY Radon Levels
Check local Denver radon levels and find certified testing and mitigation professionals to keep your home safe
Denver, NY Radon Facts
EPA Radon Zone
Zone 1 — High Risk
> 4.0 pCi/L (Zone 1)
County
Delaware County, NY
Zip Code
12421
Set in the Catskill Mountains region of Delaware County, Denver occupies New York's EPA Zone 1 highest-risk area for radon exposure. The community's mountainous terrain features bedrock formations and glacial deposits that can generate significant radon levels in residential properties. Given the lack of current testing data for zip code 12421, residents should prioritize radon measurement, particularly in homes with basements or below-grade spaces.
Denver, NY Radon Mitigation
Professional radon mitigation is the most effective way to permanently lower radon levels and protect your household.
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Radon FAQ for Denver, NY
What EPA Radon Zone is Denver in?
Denver and the 12421 zip code are in Delaware 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 Denver?
Radon mitigation in Denver 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 Denver?
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 New York
Cities in New York with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Brooklyn | 10.80 pCi/L | 5 |
| Oneonta | 6.50 pCi/L | 4 |
| Clifton Park | 3.75 pCi/L | 4 |
| Elmira | 15.00 pCi/L | 3 |
| Saugerties | 10.67 pCi/L | 3 |
| Staten Island | 4.00 pCi/L | 3 |
| New York | 9.00 pCi/L | 2 |
| Yonkers | 8.00 pCi/L | 2 |
| Horseheads | 7.50 pCi/L | 2 |
| Poughkeepsie | 16.00 pCi/L | 1 |