Radon Levels in Riley, OR

Riley is in Harney County. Radon data is tracked at the county level by the EPA and CDC.

EPA Zone2
County Avg1.4 pCi/L
Risk LevelModerate

EPA predicts average indoor levels between 2–4 pCi/L in this county · Source: EPA, CDC

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Tipper's take on radon in Riley

Riley is in Harney County, EPA Zone 2, a moderate risk classification. The EPA predicts average indoor radon levels between 2 and 4 pCi/L here. CDC data puts the county average at 1.4 pCi/L, though the sample size is small. Treat it as directional.

"Moderate" is the zone people underestimate most. Some homes in Riley will test at 1 pCi/L, others at 7 pCi/L. The county average doesn't tell you which side your home falls on.

A $15 test kit answers the question for good. If you're below 4 pCi/L, you can stop thinking about it. If you're above, mitigation systems in Oregon typically cost $800–$2,000 and work well.

Sources: EPA Radon Zone Map, CDC Environmental Public Health Tracking

Test Your Home in Riley

A short-term test kit costs about $15, includes the lab fee, and gives you a result in 48 hours. It's the only way to know your home's actual radon level.

See Tipper's Picks

Radon Professionals Serving Oregon

No contractors in our directory are listed specifically for Riley. These certified pros serve Oregon and may cover your area.

Environmental Works
Fairview, 97024
4.9 · 762 reviews
Alpha Environmental Services
Beaverton, 97005
4.8 · 508 reviews
86 Radon
McMinnville, 97128
5.0 · 38 reviews
ABSOLUTE ENVIRONMENTAL
Portland, 97218
5.0 · 34 reviews
Cascade Radon
Portland, 97230
4.5 · 33 reviews

Full County Data

Radon data is tracked at the county level. For state comparisons, nearby counties, and detailed analysis, see the full county page.

Harney County, OR: Full Radon Data →

Radon FAQ: Riley, OR

What is the radon risk in Riley?

Riley is in Harney County, which the EPA classifies as Zone 2 (Moderate risk). The county average is 1.4 pCi/L. The EPA recommends testing every home regardless of zone. Radon levels vary house to house.

How do I test my home in Riley for radon?

Place a short-term radon test kit in the lowest livable level of your home for 48 hours under closed-house conditions. Kits cost about $15 and include the lab fee. Keep windows and exterior doors closed during the test (normal entry/exit is fine). Results come back in about a week.

What should I do if radon is high in my Riley home?

If your test result is at or above 4 pCi/L, the EPA recommends installing a mitigation system. A certified contractor can install one for $800–$2,000 in most cases. The system runs continuously and typically brings levels well below 2 pCi/L. Retest after installation to confirm.