Johnston, RI Radon Levels
Check local Johnston radon levels and find certified testing and mitigation professionals to keep your home safe
Johnston, RI Radon Facts
EPA Radon Zone
Zone 2 — Moderate Risk
2–4 pCi/L (Zone 2)
County
Providence County, RI
Zip Code
02919
Positioned in Providence County within the Providence Metro area, Johnston sits on glacial deposits over crystalline bedrock typical of southern New England. With testing data limited for this 02919 zip code community, homeowners should consider individual testing given the region's geological potential for radon.
Johnston, RI Radon Mitigation
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Radon FAQ for Johnston, RI
What EPA Radon Zone is Johnston in?
Johnston and the 02919 zip code are in Providence County, which has an EPA assigned Radon Zone of 2. A zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L.
How much does radon mitigation cost in Johnston?
Radon mitigation in Johnston 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 Johnston?
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 Rhode Island
Cities in Rhode Island with the most user-submitted radon test data, ranked by number of submissions.
| City | Avg User Radon Level | Submissions |
|---|---|---|
| Providence | 11.00 pCi/L | 2 |
| Westerly | 8.00 pCi/L | 2 |
| Portsmouth | 4.50 pCi/L | 2 |