"Analytical gross alpha" means total gross alpha activity as measured by the EPA approved methodologies, as specified in 40 CFR 141.25, and includes, but is not limited to, alpha particles from radium-226, uranium, thorium, and polonium. The term does not include radon.
N.H. Admin. Code § Env-Dw 103.04
(See Revision Note at chapter heading for Env-Dw 100) #10606, eff 6-1-14