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Radon Levels in Burnet County, Texas

Zone 3Lower predicted potential1,022 square miles · 7 bordering counties

What this means for you

  • Your area: EPA rates Burnet County Zone 3, the lowest of its three radon zones. That is a prediction for the whole county, and homes with elevated levels occur in all three zones.
  • Local tests: Of 7 radon tests reported to CDC for Burnet County (2008 to 2017), 71.4% were at or above 4 pCi/L, EPA's action level.
  • Your home: The only way to know your home’s level is to test it.

pCi/L (picocuries per liter) is the unit radon is measured in. EPA recommends fixing a home at 4 pCi/L or above, its action level.

Over the 2008 to 2017 laboratory totals, 71.4% of the radon tests reported to CDC for Burnet County, Texas came back at or above the EPA action level of 4 pCi/L, and the median result was 27.4 pCi/L. EPA's Map of Radon Zones places the county in Zone 3, lower predicted potential. Radon levels vary from home to home, so only a test measures the level in yours.

Predicted: EPA radon zone

EPA Zone 3: lower predicted potential

EPA predicts an average indoor of less than 2 pCi/L (less than 75 Bq/m³) across the county as a whole.

This is a county-level geologic prediction. It is not a measurement of any address, and houses with elevated radon are found in all three zones.

USGS geologic potential: High across 71% of the county's land area

Predicted: EPA Map of Radon Zones

Measured: tests reported to CDC

Radon tests reported for Burnet County, 2008 to 2017, laboratory

Tests reported
7
At or above 4 pCi/L
71.4%
Median result
27.4 pCi/L
Reported results by concentration band, Burnet County, 2008 to 2017, laboratory
Under 2 pCi/L: 14%2 to 4 pCi/L: 14%4 pCi/L and above: 71%

Of 7 pre-mitigation tests reported to CDC, not homes in this area. CDC publishes the share in each band, not a count per band, so the per-band counts in the table are calculated by Radon411 and rounded to add up to the published total.

Reported results by concentration band, Burnet County, 2008 to 2017, laboratory: data table
Result bandTests Calculated by Radon411Share Measured
Under 2 pCi/L114.3%
2 to 4 pCi/L114.3%
4 pCi/L and above571.4%

Distribution of tested buildings, not this house. People testing before a sale, or because they suspect a problem, are over-represented in any reported testing data.

Measured: CDC tracking data. Figure above: 2008 to 2017, laboratory. Measured data period: 2005 to 2017 (every CDC figure on file).

Burnet County, In figures

Burnet County in figures

What the published data says about Burnet County, in words. A zone and a share of tests describe an area, never the level in any one home.

    • Predicted

      Predicted

      EPA places Burnet County in Zone 3, lower predicted potential, as it does 214 other counties of Texas's 254.

      Of the 7 bordering counties, EPA places Llano County in Zone 2 and Bell County, Blanco County, Lampasas County, San Saba County, Travis County and Williamson County in Zone 3.

  • Reported tests

    Measured

    CDC publishes no annual figure for Burnet County; its figure is a laboratory total for 2008 to 2017: 71.4% of 7 reported tests were at or above 4 pCi/L.

  • Local record

    Texas's radon program is the Texas Radon Group, run by Texas Tech University; its contacts are under Local resources.

    The county's largest incorporated places are Marble Falls, Burnet and Granite Shoals; the figures here cover them as part of the county.

Burnet County, Comparison

How Burnet County compares

Measured

Burnet County's own published CDC figures beside those of the counties that border it, for the same period.

Share of reported tests at or above 4 pCi/L

Measured

2008 to 2017, laboratory, highest first. Each county’s own published CDC figure.

  1. Burnet CountyThis page7 tests71.4%
  2. Bell CountyTX30 tests16.7%
  3. Travis CountyTX426 tests9.2%
  4. Williamson CountyTX103 tests1.9%
  5. Blanco CountyTX2 tests0.0%
  6. Llano CountyTX6 tests0.0%

Median reported result

Measured

2008 to 2017, laboratory, highest first. Each county’s own published CDC figure.

  1. Burnet CountyThis page7 tests27.4 pCi/L
  2. Llano CountyTX6 tests1.5 pCi/L
  3. Bell CountyTX30 tests1.3 pCi/L
  4. Travis CountyTX426 tests0.9 pCi/L
  5. Williamson CountyTX103 tests0.7 pCi/L
  6. Blanco CountyTX2 tests0.2 pCi/L

Each figure is that county’s own published CDC figure for 2008 to 2017, laboratory, counting radon tests reported to CDC, not homes. Burnet County is this page. Nothing is averaged or combined across counties. The test count beside each county is CDC’s published number of pre-mitigation tests behind its figures. Figures from few tests can swing widely from year to year. No published CDC figure for 2008 to 2017, laboratory: Lampasas County, TX; San Saba County, TX. Every Texas county’s own figure is in the Texas county table.

CDC publishes this figure only for counties here, so there is no state or national number to compare Burnet County, Texas with.

Burnet County, Bordering counties

Counties bordering Burnet County

Calculated by Radon411

Burnet County, Local resources

Local resources in Texas

Who to ask in Texas: the state's radon program, test kits and professionals.

Texas Radon Group

Texas Tech University

Texas’s radon program answers questions about testing, mitigation and the rules where you live.

Licensing of radon professionals
There are no radon certification requirements for the State of Texas at this time, but the National Radon Proficiency Program lists radon testers and mitigators within Texas that have passed a rigorous national certification program.
Visit the program's page(opens in a new tab)

Test kits

The program says: The Texas Radon Group offers free radon test kits for Texas individuals who qualify.

Radon professionals

3 professionals are listed in Texas.

Professionals in Texas

Burnet County, Cities and towns

Cities and towns in Burnet County

The radon figures on this page are for Burnet County as a whole. They do not differ by city or town.

  • Marble Falls
  • Burnet
  • Granite Shoals
  • Horseshoe Bay (part)
  • Bertram
  • Meadowlakes
  • Cottonwood Shores
  • Highland Haven

8 incorporated places, as listed in the U.S. Census Bureau’s 2020 place reference files. “(part)” marks a place that extends into another county.

Burnet County, Questions

Questions about radon in Burnet County

Common questions8 questions, answered from the figures above

Are radon levels high in Burnet County?

In 2017, 71.4% of the radon tests reported to CDC for Burnet County, Texas were at or above 4 pCi/L, and the median reported pre-mitigation result was 27.4 pCi/L. That is a share of reported tests, not of homes. EPA places Burnet County in Zone 3, lower predicted potential, a predicted average indoor screening level less than 2 pCi/L. Homes with elevated levels occur in all three zones, so the figures describe the area, not your house. Testing is the only way to know the radon level in a specific building.

What a radon level meansRadon in Texas

How do I get a radon test in Burnet County?

EPA says you can test your home yourself or hire a qualified radon test company, and that either approach takes only a small amount of time and effort. No certified tester listed on Radon411 names Burnet County as a service area yet. The Texas radon program is the place to ask about certified testers and any test kit offer it runs.

How to test a homeTest kits comparedFree and low-cost kits by stateTexas radon program

Who does radon mitigation in Burnet County?

No listed mitigator names Burnet County as a service area yet; the Texas directory lists 3 companies. EPA recommends having a qualified contractor fix a home with a radon problem, because lowering high radon levels takes technical knowledge and special skills, and some states require the work to be done by a licensed or certified professional. Your state radon program is the place to check whether Texas requires one.

How radon mitigation worksWhat mitigation costsMitigators in Texas

What EPA radon zone is Burnet County in?

EPA places Burnet County, Texas in Zone 3, which EPA describes as lower predicted potential for the area. A zone is a prediction for the whole county and never determines whether a particular home should be tested. EPA recommends testing every home regardless of zone.

Should I test my home in Burnet County?

Yes. Testing is the only way to know the radon level in a specific building. EPA recommends fixing a home when the radon level is 4 pCi/L or higher. EPA recommends considering a fix when the level is between 2 and 4 pCi/L. How to test a home.

When is the best time of year to test?

EPA says short-term tests stay in the home from 2 to 90 days and that all radon tests should run a minimum of 48 hours; long-term tests stay more than 90 days. EPA's guides do not name a best season: they say radon levels tend to vary from day to day and season to season, so a long-term test is more likely than a short-term test to tell you the year-round average.

What does it cost to test?

EPA's Citizen's Guide calls testing easy and inexpensive, and EPA's Home Buyer's and Seller's Guide says passive short-term and long-term devices are generally inexpensive, while active devices may cost more. No national average price is published for this, so Radon411 does not give one. What testing costs.

Which counties border Burnet County?

Burnet County borders 7 counties, derived from Census county geometry. Radon potential follows geology rather than county lines, so a bordering county's report can be relevant.

What these figures mean if you own, buy, sell or rent

The reported-test figures on this page describe Burnet County, Texas in 2017. They describe tests other people carried out in other buildings, and none of them measures yours.

  • If you own your home

    Test the lowest lived-in level; a short-term kit screens in days, a long-term kit reflects the year.

    How to test a home
  • If you are buying

    Ask for past results and any system's post-mitigation test, and test during the sale.

    Buying a house: radon guide
  • If you are selling

    Testing before you list puts the timing in your hands; disclosure rules differ by state.

    Selling a house: radon guide
  • If you rent, or rent out a home

    A tenant can test; a fix is the owner's to make, and duties differ by state.

    Radon in rental homes

How long a test has to run, under what conditions, and what EPA says a result means: the testing standard, in full.

Burnet County, Products

Testing and mitigation products

Whatever the figures for Burnet County show, only a test tells you about one home.

Burnet County / Next steps

What to do next

Informational. Follow EPA guidance. EPA says all radon tests should be taken for a minimum of 48 hours, with windows and doors closed from 12 hours before a short-term test.