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RADON411

Radon testing in San Jose, California

Radon testers with an address in San Jose, with the licenses on file for each.

San Jose, CA at a glance

  • Businesses listed

    1

    San Jose
    1
    Walnut Creek
    1

    By each business's listed address

  • Listed for testing

    1

    100% of listings

    Testing
    1
    Mitigation
    0

    1 laboratory listed as well

  • State license on file

    1

    100% of listings

    State license
    1
    NRPP
    0

    As each issuer's own record shows it

  • Share at 4+ pCi/L

    9.2%

    1.1 pts below CA

    Santa Clara
    9.2%
    California
    10.3%

    Santa Clara, 20th of 33 in CA, 2008 to 2017

  • EPA radon zone

    Zone 2

    Moderate potential

    1. 1
    2. Zone 2
    3. 3

    1 highest, 3 lowest

    Santa Clara County, where San Jose is

Professionals in San Jose

California licensing and every city

No business licensed by California is listed here yet.

Located in California, licensed by another state

These businesses have an address in California, and another state's registry lists them. That does not mean California licenses them: check with California's radon program before hiring one for work here.

1 professional located in San Jose, California and listed by another state.

Radon levels in San Jose

Read a result for San Jose

Starts at Santa Clara County's median, 0.9 pCi/L

0.9pCi/L

EPA’s own thresholds; the figures are the area’s, never this home’s.

EPA’s reading of 0.9 pCi/L

Below 2 pCi/L

  1. Under 20 to 1.9 pCi/L
  2. 2 to 4consider a fix
  3. 4 and aboveEPA says fix it

This result is below 2 pCi/L, the level at which EPA says a fix should be considered. Santa Clara County's median reported result, 2008 to 2017.

Interpret this reading

San Jose lies in Santa Clara County, where 9.2% of 793 radon tests reported to CDC (2008 to 2017, laboratory) were at or above 4 pCi/L, 1.1 points below California pooled (10.3%), 20th of 33 California counties with 30 or more tests.

Radon test figures for the county San Jose lies in
CountyTestsAt or above 4 pCi/LMedianCalifornia, pooledRank in the stateEPA zone
Santa Clara County7939.2%0.9 pCi/L10.3%20 of 33Zone 2

Shares of tests people chose to run and report, by county (2008 to 2017, laboratory); the state's is its counties' counts added up, calculated by Radon411. Only a test measures a home.

Around Santa Clara County, where San Jose lies, the nearest California counties with a CDC figure for 2008 to 2017, laboratory run from 2.8% to 21.9% of tests at or above 4 pCi/L; the closest, Santa Cruz County, is 21 miles away at 21.9%.

The nearest California counties to Santa Clara County with 30 or more tests, 2008 to 2017, laboratory
CountyDistanceTestsAt or above 4 pCi/LMedian
Santa Cruz County21 mi10521.9%1.2 pCi/L
Alameda County31 mi4786.7%0.7 pCi/L
San Mateo County37 mi4689.2%0.9 pCi/L
Contra Costa County49 mi2858.8%0.9 pCi/L
San Joaquin County54 mi7414.9%1.4 pCi/L
San Francisco County55 mi2462.8%0.5 pCi/L

Cities near San Jose

Every city in California with listed radon professionals

Listings come from state licensing registries.

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