Tonopah, AZ Radon Mitigation and Testing

Q: What EPA Radon Zone is Tonopah in?

Tonopah is in Maricopa County, EPA Zone 2.

Q: How much does radon mitigation cost in Tonopah?

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

Maricopa County

EPA Zone 2

Positioned in Maricopa County within the Phoenix Metro area, Tonopah sits on desert alluvium and volcanic formations that typically yield low to moderate radon potential. Testing data for this 85354 zip code community remains limited, making individual radon assessment valuable for residents. The area's desert residential development and modern construction standards create varying radon entry pathways that benefit from professional evaluation.

Tonopah, AZ Radon Mitigation

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

Tonopah, AZ Radon Testing

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

Tonopah Radon Facts

Key details about the radon risk profile for Tonopah and the 85354 zip code area.

EPA Radon Zone

Zone 2 — Moderate Risk

County

Maricopa County, AZ

Zip Code

85354

Predicted Screening Level

2–4 pCi/L (Zone 2)

Tonopah and the 85354 zip code are located in Maricopa 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 Tonopah, AZ

What EPA Radon Zone is Tonopah in?

Tonopah and the 85354 zip code are in Maricopa 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 Tonopah?

Radon mitigation in Tonopah 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 Tonopah?

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 Arizona

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

City	Avg User Radon Level	Submissions
Prescott	6.79 pCi/L	14
Scottsdale	7.75 pCi/L	12
Phoenix	5.40 pCi/L	10
Mesa	6.40 pCi/L	5
Flagstaff	6.00 pCi/L	5
Tucson	5.25 pCi/L	4
Payson	6.67 pCi/L	3
Glendale	6.50 pCi/L	2
Peoria	3.00 pCi/L	2
Prescott Valley	4.00 pCi/L	1
Gilbert	3.00 pCi/L	1
Tempe	3.00 pCi/L	1