What are average radon levels in Conyers, Georgia?

Average radon levels in Conyers and Rockdale County range from 2.0 to 4.0 pCi/L. Rockdale County is classified as EPA Zone 2 (moderate risk). Approximately 15-25% of tested homes exceed the EPA action level of 4 pCi/L. Homes with basements or those built on sloped terrain tend to have higher readings.

Is Rockdale County high risk for radon?

Rockdale County is classified as EPA Zone 2, which is moderate risk. While it is not in the highest category, the county still has enough radon-producing geology to cause elevated levels in a meaningful percentage of homes. The Arabia Mountain area in particular sits on exposed granite that produces radon gas. Every home should be tested regardless of the zone classification.

How much does radon mitigation cost in Conyers?

Radon mitigation in Conyers typically costs $1,200 to $2,500 for slab or basement homes using sub-slab depressurization. Crawl space homes require sub-membrane depressurization systems that cost $2,500 to $5,000 due to the additional vapor barrier work. Both systems achieve 90-99% radon reduction and are usually installed in one day.

Should I test for radon if my Conyers home is newer?

Yes. New construction sits on the same geology as older homes. Building codes do not require radon-resistant features in most Georgia construction, and even homes built with passive radon systems still need testing to confirm levels are safe. The EPA recommends testing every home, regardless of age.

Does the Arabia Mountain area have higher radon risk?

The Arabia Mountain National Heritage Area features exposed granite outcrops, which is the same type of bedrock that produces radon gas. Homes near Arabia Mountain may sit on shallower granite with more direct radon pathways. However, individual home testing is the only way to confirm actual indoor levels, as soil conditions and foundation type play major roles.

Radon in Conyers, Georgia

1. Why Conyers Has Radon Risk

Conyers sits in the eastern portion of Metro Atlanta on Piedmont province geology. The area is underlain by metamorphic and igneous rock formations, including granite and gneiss, that contain naturally occurring uranium. As uranium undergoes radioactive decay, it produces radium and then radon gas. This invisible, odorless gas moves upward through fractured rock and soil, entering homes through foundation openings.

Rockdale County carries an EPA Zone 2 (moderate risk) classification. This means the predicted average indoor radon level falls between 2 and 4 pCi/L. While this is not the highest risk category, it still means a notable percentage of homes will test above the EPA's action level of 4 pCi/L. Testing data from the Conyers area shows roughly 15-25% of homes exceed this threshold.

One geological feature that sets the Conyers area apart is the Arabia Mountain National Heritage Area, located just northwest of town. The exposed granite outcrops at Arabia Mountain are the same type of bedrock that sits beneath homes throughout Rockdale County. Where the granite is closer to the surface, radon has a shorter path to travel, which can mean higher indoor concentrations.

2. Conyers Neighborhoods and Radon

Conyers includes established neighborhoods and newer developments with different radon risk profiles:

Olde Town Conyers. The historic downtown area has older homes, many from the early to mid-20th century, with crawl space and pier foundations. Aging foundations with more cracks and gaps tend to allow more radon entry. Older homes in this area should be tested as a priority.

Honey Creek area. Located in the northern part of Conyers with rolling terrain and wooded lots. Many homes here have walk-out basements built into hillsides, creating significant below-grade soil contact. The terrain and granite geology make this area one of the higher-risk neighborhoods in the Conyers vicinity.

Pine Log and Salem Road corridor. This area includes a mix of established subdivisions and newer development. Homes range from 1980s construction to recently built. Testing patterns in this corridor show moderate radon levels that can spike in homes with specific foundation conditions.

West Conyers and Milstead. The western edge of Conyers near the DeKalb County line sits closer to the Arabia Mountain granite formations. Homes in this area may be on shallower bedrock, which can translate to higher radon potential.

Use our see radon levels for your area to check local radon risk.

For broader county-level data, see our Rockdale County radon guide.

3. Rockdale County Geology

Understanding the local geology helps explain why radon varies across Conyers:

Rockdale County sits on the Piedmont geological province, characterized by ancient metamorphic and igneous rock. The bedrock includes biotite gneiss, granite, and schist formations. These rocks contain trace amounts of uranium-238, which decays through a chain that produces radon-222 gas.

The depth of the bedrock below the surface varies across the county. In areas where granite is closer to the surface (like near Arabia Mountain), radon has a more direct path into homes. In areas with deeper soil cover, some radon dissipates before reaching foundations. However, fractured rock can channel radon gas upward even through deeper soil.

Zone 2 Does Not Mean Low Risk

EPA Zone 2 is a moderate risk designation, not a safe one. It means the county average falls between 2 and 4 pCi/L, but individual homes can test well above or below the average. In Conyers, homes with basements on granite bedrock have tested above 8 pCi/L. The zone classification describes the county average, not your home.

4. Testing Your Conyers Home

Testing is the only way to know your home's radon level. Here is how to get started: Neighboring cities like Covington, Stockbridge, and Stone Mountain show similar radon patterns due to shared geology.

Pick Your Test Method

Professional CRM testing ($125-250) is the gold standard and provides hourly radon readings over 48 hours. DIY charcoal kits ($15-40 plus lab fees) work for initial screening but give only a single average reading.

Test the Lowest Livable Level

Place the test in the lowest level of your home that is regularly used. For homes with basements, test there. For slab or crawl space homes, test on the main floor. Keep the device away from windows and exterior doors.

Read Your Results

Below 2 pCi/L: Low risk. Between 2-4 pCi/L: Consider a follow-up long-term test. Above 4 pCi/L: EPA recommends a radon mitigation system. Above 8 pCi/L: Take action promptly.

5. Mitigation Options and Costs

If your Conyers home tests above 4 pCi/L, a mitigation system will bring levels down to safe readings. Here are the options:

Slab or Basement

$1,200-$2,500

Sub-slab depressurization: a suction point drilled through the slab, connected to PVC piping and a radon fan that vents gas above the roofline.

Crawl Space

$2,500-$5,000

Sub-membrane depressurization: a heavy-duty vapor barrier sealed over the crawl space soil with active suction pulling radon from beneath.

Both systems achieve 90-99% radon reduction and are typically installed in a single day. Post-installation testing confirms the system is working properly. Use our get a mitigation price estimate for a personalized estimate.

For more information, read our Georgia radon disclosure laws. The only way to know is to book a radon test.

Conyers and Rockdale County Homeowners

Even in a Zone 2 county, one in five to one in four homes tests above the EPA action level. A quick 48-hour test removes the guesswork, and if mitigation is needed, it is a straightforward one-day installation.

Radon in Conyers, Georgia: Rockdale County Radon Guide

1. Why Conyers Has Radon Risk

2. Conyers Neighborhoods and Radon