40 C.F.R. Table A to Subpart D of Part 192
40 C.F.R. Table A to Subpart D of Part 192
Cite as 40 C.F.R. Table A to Subpart D of Part 192 (2026)
pCi/liter Combined radium-226 and radium-228 5 Gross alpha-particle activity (excluding radon and uranium) 15