Get a Natural Hazard Disclosure Report from GeoAssurance to see statistics on Radon in your zip code! Radon is a serious issue in many areas of California according to the Department of Health Services (DHS) statistics. According to the Environmental Protection Agency (EPA), it's the second leading cause of lung cancer in the United States! And yet, it's easy to mitigate by sealing around pipes and cracks in floors and venting crawl spaces. The DHS defines Radon as a colorless, odorless, and tasteless radioactive gas produced by the decay of trace amounts of uranium occurring naturally in soils. The EPA (3 comments)