A licensee must maintain records for each use of licensed material showing:
in the case of unsealed licensed material used for subsurface tracer studies, the radionuclide and quantity of activity used in a particular well and the disposition of any unused tracer materials;
the identity of the logging supervisor who is responsible for the licensed material and the identity of logging assistants present; and
A licensee must make the records required under subpart 1 available for inspection by the commissioner. A licensee must retain the records for three years from the date of the recorded event.
29 SR 755
March 12, 2009
Official Publication of the State of Minnesota
Revisor of Statutes