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Indoor Radon Program
Website: www.cdph.ca.gov/HealthInfo/environhealth/Pages/Radon.aspx exiting epa
Fax (916) 449-5665
Toll-free radon message line: 1-800-745-7236

Radon Contact: Radon Program Manager, Radonprogram@cdph.ca.gov, (916) 449-5674

The 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 offering low-cost, short term test kits for California residents at www.cdph.ca.gov/HealthInfo/environhealth/Pages/RadonTestKits.aspx exiting epa

Additional Resources

www.ca.gov exiting epa

California Department of Health Services
Website: www.dhs.ca.gov exiting epa

Centers for Disease Control and Prevention's (CDC) Indoor Air Quality Information by state - www.cdc.gov/nceh/airpollution/indoor_air.htm

EPA Resources

National Radon Action Month is in January - Browse Current & Past Events National Radon Action Month Events at www.radonleaders.org/nram/events exiting epa

Map of Radon Zones for California
California zone map

Click on the image for a larger version | What do the colors mean? | Need a full page version? (PDF, 1 page, 30 K, about PDF)

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

Radon in California exiting epa

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 in California

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EPA Region 9
(Pacific Southwest)

States covered: AZ | CA | HI | NV | Guam

Regional Contacts:
Shelly Rosenblum
(415) 947-4193, or
Monique Nivolon
(415) 947-4195
Tribal Coordinator:
Clancy Tenley
(415) 972-3785

EPA Resources

Regional Radon Training Centers | IED's Tribal Resources | EPA's State Environmental Agencies List | EPA's MyEnvironment

Health Risks Hotlines Indoor airPLUS Kids, Students & Teachers Map of Radon Zones Media Campaigns National Radon Action Month Radon-resistant New Construction Radon and Real Estate Radon and Drinking Water RadonLeaders.org State Radon Contacts SIRG Test & Fix Your Home Webinars Indoor Air

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