8.11.4 Radon

Radon is a naturally occurring, odorless, colorless, and tasteless inert radioactive gas that is formed from the radioactive decay of uranium.  Elevated radon concentrations have been observed in all parts of the world.  Radon surveys have been undertaken in buildings on Fort Carson and Pinon Canyon Maneuver Site to determine the extent of radon exposure of persons working and occupying the buildings located on, or under the jurisdiction of Fort Carson.  The purpose of this effort is to reduce health risks from exposure to radon gas.  Site-specific information regarding historic radon readings shows that where generally higher radon levels have been found to exist, and long term priorities and schedules for testing (or retesting) and mitigation are presented in the radon management plan.  (Timeframes for retesting and/or mitigation - Army Regulation 200-1.)

• Implementing guidance is found in Department of the Army Pamphlet (DA PAM) 200-1.

The EPA’s indoor radon program promotes voluntary public actions to reduce the risks from indoor radon.  EPA and the U.S. Surgeon General recommend that people not be exposed to more than the “action level” of 4 picoCuries per liter (pCi/l) of radiation from radon on a long-term basis.  Mitigation is recommended when radon concentrations are above 4 pCi/l.   Colorado Department of Public Health and Environment (CDPHE) recommends testing residential homes for radon and also notes that buildings other than homes can have radon concerns (such as commercial buildings, schools, apartments, etc.).

Contaminated Areas