California
EPA Region 9 - The Pacific Southwest
www.epa.gov/region9
Mail Code (Air-6)
75 Hawthorne Street
San Francisco, CA 94105
Regional Contacts:
Radon: Shelly Rosenblum rosenblum.shelly@epa.gov (415) 947-4193,
or Monique Nivolon nivolon.monique@epa.gov (415) 947-4195 Fax: (415) 947-3583
Tribal Coordinator: Clancy Tenley tenley.clancy@epa.gov (415) 972-3785
Note: Please direct any questions regarding the information on this page to the IED Webmaster.

Radon Program Contact/Coordinator | EPA Map of Radon Zones | National Radon Action Month | Directory of Builders Using Radon-Resistant New Construction | Regional Radon Training Centers | IED's Tribal Resources | EPA's State Environmental Agencies List | EPA's Windows on MyEnvironment | www.epa.gov/iaq/states/california.html
www.ca.gov 
California Department of Health Services
[http://www.dhs.ca.gov/]
CA Dept. of Public Health
Radon Program (Indoor Radon) - Web site
1616 Capitol Avenue, 2nd Floor, MS 7405
P.O. Box 997413
Sacramento, CA 95899-7413
Fax (916) 449-5656
Toll-free radon message line: 1-800-745-7236Radon Contact: George Faggella George.Faggella@cdph.ca.gov
Phone: (916) 449-5674 / Fax: (916) 449-5665The California Department of Health Services (DHS) has established a list of providers of radon services. The list establishes three board categories testers, mitigators, and laboratories, for ease of use. The Radon Program is now offering short term test kits for $5.00 for California residents - Web site
National Radon Action Month is in January - Browse Current & Past Events National Radon Action Month Events at
www.radonleaders.org/nram/events
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| Map of Radon Zones for California | ||||||||||
![]() Click on the image for a larger version | What do the colors mean? |
The purpose of this map is to assist National, State, and local
organizations to target their resources and to implement
radon-resistant building codes. This map is not intended to be
used to determine if a home in a given zone should be tested for
radon. Homes with elevated levels of radon have been found in
all three zones. All homes should be tested regardless of
geographic location.
Learn more |
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| Directory of Builders Using Radon-Resistant New Construction | ||||||||||
| EPA offers the
Directory of Builders as a one-stop service to home buyers who are looking for builders that use radon-resistant construction techniques in new homes.
The Directory contains the names of builders using RRNC who have voluntarily registered with EPA. EPA encourages all builders that use the recommended radon-resistant techniques to be listed in the Directory. Read more about Radon-Resistant New Construction |
See a Listing of States and Jurisdictions with RRNC Codes Go to a listing of State Building Code Associations Find Builders offering services nationwide
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