California Radon Regions

Radon is present in all areas at some volume, but certain areas generally have higher concentrations and a higher probability of testing levels above the 4 pCi/L level that the EPA recommends action for. The Indoor Radon Abetement Act of 1998 directed the US Environmental Protection Agency to identify areas that have the potential to produce higher levels of Radon. There are several maps available that illustrate areas with higher concentrations.

Radon Be Gone provides Radon Mitigation Services in all of these regions in California:
Click the Region for More Info.

  • Los Angeles County
  • Ventura County
  • Santa Barbara County
  • San Luis Obispo County
  • Monterey County
  • Lake Tahoe Area
  • Santa Cruz County


  • Radon Be Gone also provides Radon Mitigation Services for California houses and commercial businesses outside the areas specified above. The regions above are ones that the EPA developed specific Radon maps for.