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Chester, NJ Radon Levels

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


Chester, NJ Radon Facts

EPA Radon Zone Zone 1 — High Risk > 4.0 pCi/L (Zone 1)
County Morris County, NJ
Zip Code 07930
Avg. User Level 9.50 pCi/L
User Tests 2

Chester in Morris County shows an average radon level of 9.5 pCi/L, significantly exceeding the EPA's 4.0 pCi/L action threshold and indicating the need for mitigation in affected homes. This New York City Metro community sits in New Jersey's crystalline Highlands region where granite and gneiss bedrock contribute to elevated radon potential. The area's mix of historic homes and modern construction, many with full basements typical of northern New Jersey, can facilitate radon accumulation.

9.50
pCi/L average
Above EPA Action Level

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

0
4.0 EPA
10+

Chester, NJ Radon Mitigation

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

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Chester, NJ Radon Levels

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

Radon LevelCityHome AgeFoundation
13 pCi/L Chester, NJ 51-99 Years Partial Basement
6 pCi/L Chester, NJ Full Basement

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

Radon FAQ for Chester, NJ

What is the average radon level in Chester, NJ?
Based on 2 user-submitted tests, the average radon level in Chester is 9.50 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 Chester in?
Chester and the 07930 zip code are in Morris 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 Chester?
Radon mitigation in Chester 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 Chester?
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 Jersey

Cities in New Jersey with the most user-submitted radon test data, ranked by number of submissions.

CityAvg User Radon LevelSubmissions
Cherry Hill 6.44 pCi/L 9
Hillsborough 6.14 pCi/L 7
Freehold 10.50 pCi/L 6
Marlboro 6.17 pCi/L 6
Bernardsville 7.00 pCi/L 5
Phillipsburg 7.00 pCi/L 5
Edison 5.60 pCi/L 5
Princeton 5.40 pCi/L 5
Sussex 9.75 pCi/L 4
Piscataway 6.75 pCi/L 4