Clark, NJ Radon Mitigation and Testing

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

Based on 3 user-submitted tests, the average radon level is 5.30 pCi/L.

Q: What EPA Radon Zone is Clark in?

Clark is in Union County, EPA Zone 2.

Q: How much does radon mitigation cost in Clark?

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

Avg: 5.30 pCi/L

Union County

EPA Zone 2

3 user tests

Part of the New York City Metro area, Clark in Union County has recorded an average radon level of 5.33 pCi/L, exceeding the EPA's 4.0 pCi/L action threshold. Based on testing data from zip code 07066, this EPA Zone 2 community shows radon readings ranging from 4.0 to 7.0 pCi/L. The area's diabase rock formations and dense suburban development contribute to elevated indoor radon concentrations that warrant mitigation consideration for affected homes.

5.30

pCi/L average

Above EPA Action Level

Based on 3 user-submitted radon tests for homes in Clark, NJ. The EPA recommends taking action at or above 4.0 pCi/L.

4.0 EPA

10+

Clark, NJ Radon Mitigation

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

Clark, NJ Radon Testing

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

Clark, New Jersey Radon Levels

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

Radon Level	City	Home Age	Foundation	Submitted
4 pCi/L	Clark, NJ	—	Full Basement	Mar 2020
5 pCi/L	Clark, NJ	51-99 Years	Full Basement	Sep 2017
7 pCi/L	Clark, NJ	51-99 Years	Full Basement	Dec 2016

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

Clark Radon Facts

Key details about the radon risk profile for Clark and the 07066 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Union County, NJ

Zip Code

07066

Predicted Screening Level

2–4 pCi/L (Zone 2)

Avg. User Submitted Level

5.30 pCi/L

User Tests Submitted

Clark and the 07066 zip code are located in Union County, which has an EPA assigned Radon Zone of 2. A radon zone of 2 predicts an average indoor radon screening level between 2 and 4 pCi/L. The EPA recommends testing every home regardless of zone classification.

Radon FAQ for Clark, NJ

What is the average radon level in Clark, NJ?

Based on 3 user-submitted tests, the average radon level in Clark is 5.30 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 Clark in?

Clark and the 07066 zip code are in Union 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 Clark?

Radon mitigation in Clark 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 Clark?

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