RADIUM-226 AND RADON-222 REMEDIAL ACTION GUIDES
(ABove BACKGROUND)
RADIONUCLIDE
GUIDE
RADON-222
>0.03
REauIRED ACTION
<0,02
No ACTION
>3eC1/1
REaurIRED ACTION
+DAUGHTERS
Rapon-222
ACTION
ONDITIO
STRUCTURES
BOUNDARY OF CONTROLLED
PROPERTY
>30eC1/1
RequirepD ACTION
OveR SURFACE OF CONTROLLED
PROPERTY
RADI UM-226
>15PCi/c
REQUIRED ACTION
19 cm or Less Soir
THICKNESS
>5eC1/1
REQUIRED ACTION
SuRFACE WATER OR GROUND
WATER
Gamma Dose
>0.02 MREM/HR
REQUIRED ACTION
EXTERNAL RADIATION