Radon Levels & Zone Map in Piute County, UT
Direct Answer for basement and lowest-level tests: Piute County is a strong county-level radon signal. You still need a home test, but this is not a county where skipping the first test makes sense.
Do not guess in a higher-risk county
Most users should either get a first test or move a 4.0+ result straight into mitigation pricing.
Higher countywide chance of 4.0+ readings.
2.0-3.9 pCi/L usually means retest or track. 4.0+ is where EPA action and quote planning start to matter.
No reading: test now. Reading at 4.0+: move into mitigation planning.
Measured Radon Data
Piute County evidence before the next step
Piute County, UT has more than the EPA map: Utah DHHS EPHT exposes 7 reported tests, 1.9 pCi/L county average, 1.9 pCi/L median, and 24.2 pCi/L high-end signal for 2006-2019.
Source window
2006-2019
County evidence type
Lower measured burden
County context only; your home test controls the decision.
Primary result
1.9 pCi/L
7th percentile in-state
4.0+ signal
Not available
n/a in-state
High-end signal
24.2 pCi/L
14th percentile in-state
Official evidence dossier
Source record for Piute County, UT
Utah values come from DHHS EPHT/IBIS radon test kit result queries. RadonVerdict combines county average, test count, 4.0+ count, median, and maximum queries for the same 2006-2019 period; Utah notes that tests outside its subsidized kit program are not included.
Primary public source
Official county measurements
Measurement window
2006-2019
Retrieved / checked
2026-05-06
County FIPS
49031
Evidence stack
County source
Official county measurements
Primary source used for the county evidence row.
Federal map
EPA Map of Radon Zones
Zone 1 is context, not a property result.
Housing context
US Census ACS housing context
41.8% built before 1980; 893 housing units.
State follow-up
State radon program
Use the state source before hiring or interpreting local rules.
Primary field
1.9 pCi/L
Median field
1.9 pCi/L
4.0+ field
Not available
Sample / volume
7 reported tests
Metric shape
This source is useful for a typical county result and local ranking, but it does not show how many homes cross 4.0 pCi/L.
Source limitation
Utah EPHT says the Indoor Radon Program receives radon test results from test kits purchased through its subsidized program; home radon tests purchased and conducted outside of this program are not included. These are short-term tests in private homes, below-detect results are halved, and county values are reported test records rather than a statistically designed survey of every home.
Property-level limit
Not a property-level diagnosis. The county record explains local evidence; your home's own test result controls the next decision.
County-specific interpretation
Piute County looks lower at county level, but the home still needs its own number.
Piute County is a home-specific check because 1.9 pCi/L average, and 1.9 pCi/L median. In-state rank: 7th percentile for average. The county signal is lower, but one house can still sit above the county pattern.
Real-estate use
Buyer or seller use: the county pattern is not enough for a credit demand by itself; use an actual home test to decide whether anything needs pricing.
Piute County has a lower measured county signal, but the page should still push direct testing because individual homes can sit above the county pattern.
Use This EvidenceOfficial state path
Open the state radon program
Use state rules and local program contacts before choosing a contractor.
EPA hiring guidance
Find a qualified radon provider
EPA points homeowners to state programs and national proficiency listings.
Certified professional search
Search NRPP-certified pros
Use this after you have a valid result or need professional testing.
Lower-signal intent answer
Should homeowners in Piute County still test for radon?
Piute County has a lower county-level measured signal, but the page should still send homeowners to a direct test because individual homes can sit above the county pattern.
Enter the result. Pick the deal side. Get the route.
Higher countywide chance of 4.0+ readings.
County signal
1.9 pCi/L
At or above 4.0
Not available
Decision side
Foundation clue
Choose your next step
Start from the exact job, not another generic radon article.
Pick the situation that matches Piute County, UT. Each route keeps the reading, deal side, or foundation clue attached so the next page answers the search instead of resetting the user.
Failed inspection
I need a repair or seller credit number
Open the local credit path with a 4.0+ buyer scenario already selected.
Open negotiation route4.0+ pCi/L
I have a high result and need the cost path
Go straight to the county estimate, quote context, and contractor checklist.
Open cost route2.0-3.9 pCi/L
I need to know if this number is bad
Use the level explanation first, then decide whether to retest, monitor, or price mitigation.
Open level routeNo test yet
I need the first valid result
Start with kit placement, timing, closed-house conditions, and result interpretation.
Open testing routePick the situation that matches you
You should not need to read the whole guide before clicking one of these. Start with the lane that matches your current stage, then come back for the deeper reference only if you still need it.
Jump into a prefilled Piute County action plan based on the result you already have, instead of starting from a generic cost page.
I have not tested yet
Do not price mitigation blind. Get the first number, then decide whether you need monitoring, quotes, or nothing at all.
My result is 2.0-3.9
Usually confirm the reading first. If it keeps showing up, use the county evidence and official guidance before deciding whether pricing makes sense.
My result is 4.0+
This is the EPA action line. Use the local cost page before calling contractors so you know the likely scope, timing, and budget.
I am buying or selling
Turn the reading into a credit or repair number before negotiation starts. This is the faster path than arguing from a generic article.
Already tested once and need the cleanest follow-up path?
Review retesting stepsCounty Evidence Snapshot
Piute County testing context
Piute County is a higher-priority testing county because the EPA zone signal is high and the page now ties that signal to local housing context.
EPA map signal
Zone 1
County-level predicted indoor screening range, not a home-level test result.
Housing base
893
3th percentile among 29 UT counties with data.
Older housing share
41.8%
10th percentile in-state; older homes often need clearer test placement decisions.
Median home value
$218,800
Used as context for whether mitigation is a small maintenance item or a negotiation issue.
Measured Radon Data
Utah EPHT Radon Test Kit Results
2006-2019
Median result
1.9 pCi/L
At or above 4.0
Not available
Maximum reported
24.2 pCi/L
Reported tests
7
Utah EPHT says the Indoor Radon Program receives radon test results from test kits purchased through its subsidized program; home radon tests purchased and conducted outside of this program are not included. These are short-term tests in private homes, below-detect results are halved, and county values are reported test records rather than a statistically designed survey of every home.
County evidence interpretation
Lower measured burden
Primary result rank
7th percentile
1.9 pCi/L
4.0+ rank
n/a
Not available at or above 4.0
High-end rank
14th percentile
24.2 pCi/L
Test volume rank
4th percentile
7 reported tests
How to use this county data
Data source
Official county measurements
Utah values come from DHHS EPHT/IBIS radon test kit result queries. RadonVerdict combines county average, test count, 4.0+ count, median, and maximum queries for the same 2006-2019 period; Utah notes that tests outside its subsidized kit program are not included.
What the numbers show
Typical county result
This source is useful for a typical county result and local ranking, but it does not show how many homes cross 4.0 pCi/L.
Nearby comparison
Nearby comparison: Closest counties by county average: Daggett County (0.5 pCi/L) is just lower, and Washington County (2.2 pCi/L) is just higher.
How this helps
Use this to understand why a lower county pattern still does not replace a direct home test.
What the data says
Piute County, UT is measurement-backed for 2006-2019. The measured average is 1.9 pCi/L. The high-end signal reaches 24.2 pCi/L.
Piute County, UT sits at the 7th percentile for measured average, n/a for 4.0+ share, 14th percentile for high-end readings, and 4th percentile for test volume among 29 measured counties in the state. Closest counties by county average: Daggett County (0.5 pCi/L) is just lower, and Washington County (2.2 pCi/L) is just higher.
What to do with it
Piute County has a lower measured county signal, but the page should still push direct testing because individual homes can sit above the county pattern.
Retest trigger: a 2.0-3.9 pCi/L result can be watched or confirmed, while a 4.0+ result should still override the lower county pattern.
Source-backed context from Utah DHHS EPHT based on about 7 reported tests/properties plus comparable county-level measurement fields.
No reading yet
No reading yet: start with a test kit; the county data is context, not a substitute for the home result.
2.0-3.9 result
2.0-3.9 pCi/L: retest or monitor before paying for mitigation, then escalate if the level repeats or rises.
4.0+ result
4.0+ pCi/L: use the result for mitigation quotes, repair scope, or seller-credit negotiation; the county signal is no longer the deciding input.
Source hierarchy: Utah DHHS EPHT is used for this county, with EPA zone and Census housing data kept as supporting context. Utah values come from DHHS EPHT/IBIS radon test kit result queries. RadonVerdict combines county average, test count, 4.0+ count, median, and maximum queries for the same 2006-2019 period; Utah notes that tests outside its subsidized kit program are not included.
Direct Answer
What radon risk level should homeowners assume in Piute County?
Piute County is currently categorized as EPA Zone 1 (High Risk). Prioritize testing now and prepare for possible mitigation.
| Evidence | Value |
|---|---|
| Area | Piute County, UT |
| EPA Zone | Zone 1 |
| Primary Recommendation | Perform direct radon testing in the lowest livable level |
Your Radon Reading
Enter your home's measured level; the starting value is only a planning example until you have your own result.
Warning: Action Required - EPA Threshold Exceeded
At 5.5 pCi/L, this reading is above the EPA action level. Prompt mitigation planning is recommended after confirmatory testing.
Typical mitigation systems reduce radon by 80-99%. See your itemized cost estimate below.
Understanding Radon Levels: Complete Reference
Below 2.0 pCi/L - Lower Concern, Keep Testing
Below both the EPA (4.0) and WHO (2.7) action reference levels. This usually means mitigation is not the next immediate step after a confirmed result. The average outdoor radon level is approximately 0.4 pCi/L, and there is no known risk-free indoor level. Periodic testing is still recommended because levels can change over time due to seasonal variations, changes in home ventilation, or foundation settling.
-4.0
2.0 - 4.0 pCi/L - Elevated, Consider Action
Exceeds the World Health Organization's reference level of 2.7 pCi/L but falls below the US EPA action threshold. The EPA states that homeowners should "consider fixing" homes in this range, especially if the home has a basement used as living space, if children are present, or in connection with a real estate transaction. Practical next step: run a confirmatory long-term test, then compare mitigation quotes if levels remain elevated.
-8.0
4.0 - 8.0 pCi/L - Action Recommended
Exceeds the EPA action level of 4.0 pCi/L. The EPA and Surgeon General strongly recommend mitigation within a few months. At this level, prioritize confirmatory testing and contractor planning. Standard sub-slab depressurization systems typically reduce indoor levels by 80-99%.
Above 8.0 pCi/L - Urgent Action Required
At these levels, the EPA recommends expedited mitigation - ideally within weeks, not months. Occupants should minimize time in lower-level rooms until the system is installed. Use a certified mitigator and request priority scheduling to shorten high-exposure time. Many mitigators offer priority scheduling for homes above 8.0 pCi/L.
Why Radon is a Serious Concern in Piute County
Piute County sits in a geological region with elevated uranium concentrations in the underlying bedrock and soil. As uranium naturally decays, it produces radium, which further decays into radon gas. This gas migrates upward through soil and enters homes through foundation cracks, gaps around pipes, and sump pits.
In Zone 1 counties like Piute, the EPA predicts indoor screening levels are commonly above 4.0 pCi/L. Individual homes can still vary dramatically - even neighboring houses can differ by a factor of 10 or more. This is why every home needs its own test, regardless of what a neighbor's reading shows.
Factors that amplify radon entry include: basement foundations (more soil contact area), granitic or shale bedrock, tight energy-efficient construction (less natural ventilation), and negative indoor air pressure from HVAC systems, exhaust fans, and dryers.
Radon & Health: What the Science Says
lung cancer
from radon
4.0 pCi/L
Radon is a Class A carcinogen - the same classification as asbestos and tobacco smoke. The National Academy of Sciences estimates that radon causes approximately 21,000 lung cancer deaths annually in the United States, making it the leading environmental cause of cancer death.
Unlike smoking, radon exposure is involuntary and often invisible. There is no safe level of radon - risk increases linearly with exposure. The good news: radon mitigation systems are highly effective, typically reducing indoor levels by 80-99% within hours of activation.
Source: US Environmental Protection Agency, "A Citizen's Guide to Radon" (EPA 402/K-12/002). National Academy of Sciences, Biological Effects of Ionizing Radiation (BEIR VI) Report, 1999.
Step 1: Test Your Home
Testing is the only way to know your home's radon level. Zone and county data tell you the regional signal, but your home could be significantly higher or lower than the countywide pattern. Start with a valid test setup before using any cost path.
State radon programs and EPA provider guidance are the right reference before hiring or confirming local requirements.
Open the state radon programAlready Know Your Level?
If your test shows 4.0 pCi/L or higher, get an itemized cost estimate specific to Piute County - including regional labor rates and permit requirements.
Get Mitigation Cost Estimate ->UT Radon Regulations
Utah requires sellers to disclose known defects through the Seller's Property Condition Disclosure.
Utah does not require specific radon licensing.
How to Test for Radon in Piute County
Buy a Test Kit
Purchase a short-term charcoal test kit online or from a local hardware store. Cost: $15-$30. Place it in the lowest livable level of your home.
Wait 2-7 Days
Keep doors and windows closed (except normal entry/exit) during the test period. Avoid running whole-house fans. Mail the kit to the lab provided.
Read Your Results
If results are below 4.0 pCi/L, re-test every 2 years or use a monitor for ongoing tracking. If above 4.0, use our cost calculator to see mitigation options.
Related Radon Resources for Piute County
Explore Other UT Counties
Official State Resource
Utah radon program and rules
Use the state program link to verify local radon guidance, disclosure language, and contractor credential expectations before you act on an estimate.
Disclosure rule tracked
Utah requires sellers to disclose known defects through the Seller's Property Condition Disclosure.
Credential note
Utah does not require specific radon licensing.
Sources & Methodology
Radon zone classifications for Piute County are sourced from the EPA's Map of Radon Zones, which uses geological surveys, indoor radon measurements, and soil permeability data to assign each county a risk tier.
Disclaimer: Zone data represents county-level screening ranges and cannot predict the radon level in any specific home. Testing is the only reliable method to determine your home's radon concentration. This content is for informational purposes and is not medical advice.
Content review: Source-level retrieval dates
Editorial and Data Transparency
- Author
- RadonVerdict Data Team (Public Data and Cost Modeling)
- Content Review
- Source-level dates shown below
- Data Retrieved At
- 2026-02-24
Primary Sources
- EPA Map of Radon Zones (retrieved 2026-02-21)
- EPA A Citizen's Guide to Radon (retrieved 2026-05-05)
- CDC Environmental Public Health Tracking - Radon Testing (retrieved 2026-05-05)
- Utah EPHT Radon Test Kit Results (retrieved 2026-05-06)
- Official UT radon program
- US Census Bureau, 2018-2022 American Community Survey 5-Year Estimates (retrieved 2026-02-24)