Nebraska — 950,000+ metro

Radon in Omaha,
NE

Nebraska is an EPA Zone 1 state, and Omaha sits in Douglas County, where radon testing shows consistently elevated levels. Nebraska Radon Program data indicates approximately 60% of tested homes exceed the action level in some eastern counties.

Risk Level

High Risk

3–8 pCi/L

Typical range (area avg.)

EPA action level: 4 pCi/L

Why Omaha Has High Risk Radon

Omaha's Loess Hills geology features thick deposits of windblown glacial silt that contains uranium-bearing minerals. The loess is highly permeable, allowing radon to migrate rapidly from deep soil to foundations.

Local Housing and Radon Risk

Omaha has a substantial ranch-home belt in its western suburbs — areas like Millard, Papillion, and Sarpy County — with full basements common in virtually all residential construction. Pre-1980 homes are at highest risk.

Testing Advice for Omaha Residents

Nebraska Health and Human Services recommends testing every 2 years. Omaha's frequent freeze-thaw cycles can crack foundations annually — inspect foundation walls each spring and seal cracks before testing.

How to Test Your Omaha Home

Step 1: Choose Your Test Type

For initial screening, a charcoal short-term test kit ($12–$25) placed for 48–96 hours provides a quick result. For the most accurate reading, a long-term alpha-track test ($20–$35) left in place for 90+ days accounts for seasonal variation — especially important in Omaha's climate.

Step 2: Place the Test Correctly

Test in your lowest livable level — basement if you have one, otherwise the first floor. Keep the test 20 inches from the floor, away from windows and exterior walls. Close windows and doors 12 hours before and during the test for accurate results.

Step 3: Interpret Your Results

Below 2 pCi/L: low concern, retest every 2 years. 2–4 pCi/L: consider mitigation, retest in 2 years. 4 pCi/L or higher: the EPA recommends mitigation. Above 8 pCi/L: prioritize mitigation promptly.

Step 4: Hire a Certified Mitigator if Needed

If your test result is at or above 4 pCi/L, hire a certified radon mitigator. In Nebraska, always verify your contractor's state certification. Sub-slab depressurization — the most effective mitigation method — typically costs $850–$1,500 installed in the Omaha area.

Frequently Asked Questions — Radon in Omaha

Is radon a real problem in Omaha?

Yes. Nebraska is an EPA Zone 1 state, and Omaha sits in Douglas County, where radon testing shows consistently elevated levels. Nebraska Radon Program data indicates approximately 60% of tested homes exceed the action level in some eastern counties. The EPA recommends all homes be tested regardless of location — radon levels can vary significantly even between neighboring properties.

How much does radon mitigation cost in this area?

In the Omaha area, professional radon mitigation (sub-slab depressurization) typically costs $850–$1,500 installed. This is a one-time cost that reduces radon by 50–99%. The system requires minimal maintenance and a mitigator can typically complete the work in 3–5 hours.

Should I test if I have a new home?

Absolutely. New homes built with radon-resistant features still show elevated levels in testing — construction conditions and local geology vary too much to assume any home is safe. Test within the first year of occupancy, especially if your home has a basement.

Can I test radon myself, or do I need a professional?

DIY testing is reliable and recommended as a first step. Short-term kits ($12–$25) and long-term kits ($20–$35) are accurate when placed and returned correctly. Professional testing is only required for real estate transactions in some states. If your DIY test shows elevated levels, use a certified professional for both confirmation testing and mitigation.