Chester, NJ Radon Mitigation and Testing

Q: What is the average radon level in Chester, NJ?

Based on 2 user-submitted tests, the average radon level is 9.50 pCi/L.

Q: What EPA Radon Zone is Chester in?

Chester is in Morris County, EPA Zone 1.

Q: How much does radon mitigation cost in Chester?

Radon mitigation typically costs between $800 and $2,000. Most standard systems fall in the $1,000-$1,500 range.

Avg: 9.50 pCi/L

Morris County

EPA Zone 1

2 user tests

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.

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.

Chester, NJ Radon Testing

Finding qualified radon testing professionals is the first step toward protecting your home.

Chester, New Jersey Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
13 pCi/L	Chester, NJ	51-99 Years	Partial Basement	Sep 2024
6 pCi/L	Chester, NJ	—	Full Basement	Nov 2022

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

Chester Radon Facts

Key details about the radon risk profile for Chester and the 07930 zip code area.

EPA Radon Zone

Zone 1 — High Risk

County

Morris County, NJ

Zip Code

07930

Predicted Screening Level

> 4.0 pCi/L (Zone 1)

Avg. User Submitted Level

9.50 pCi/L

User Tests Submitted

Chester and the 07930 zip code are located in Morris County, which has an EPA assigned Radon Zone of 1. A radon zone of 1 predicts an average indoor radon screening level greater than 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

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 with the most user-submitted radon test data in the state.

City	Avg User Radon Level	Submissions
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
Caldwell	5.00 pCi/L	4
Atlantic Highlands	4.75 pCi/L	4
West Orange	4.00 pCi/L	4
Basking Ridge	3.75 pCi/L	4
Hackettstown	3.75 pCi/L	4
Livingston	3.25 pCi/L	4
Nutley	3.25 pCi/L	4
Sicklerville	7.00 pCi/L	3
Clifton	6.00 pCi/L	3
Westfield	6.00 pCi/L	3