§ 835.403  Area monitoring. 





 
§ 835.404  Radioactive contamination control and monitoring. 

 


  (a) Instruments and techniques used for radioactive contamination 
monitoring and control shall be adequate to ensure compliance 
with the requirements specified in this section. 
  (b) Appropriate controls shall be maintained and verified 
which prevent the inadvertent transfer of removable contamination 
to locations outside of radiological areas under normal operating 
conditions. 
  (c) Any area in which contamination levels exceed the values 
specified in appendix D of this part shall be:
  (1) Posted in accordance with § 835.603; and
  (2) Controlled in a manner commensurate with the physical 
and chemical characteristics of the contaminant, the radionuclides 
present, and the fixed and removable contamination levels.
  (d) Areas with fixed contamination exceeding the total radioactivity 
values specified in appendix D of this part may be located outside 
of radiological areas provided the following conditions are 
met:
  (1) Removable contamination levels are below the levels specified 
in appendix D of this part;
  (2) Unrestricted access to the area is not likely to cause 
any individual to receive a total effective dose equivalent 
in excess of 0.1 rem (0.001 sievert) in a year;
  (3) The area is routinely monitored;
  (4) The area is clearly marked to alert personnel of the contaminated 
status;
  (5) Appropriate administrative procedures are established 
and exercised to maintain control of these areas; and
  (6) Dose rates do not exceed levels which would require posting 
in accordance with § 835.603.
  (e) Entry control pursuant to § 835.501 and posting pursuant 
to § 835.603 are not required for areas with fixed contamination 
meeting the conditions of § 835.404(d).
  (f) Appropriate monitoring to detect and prevent the spread 
of contamination shall be performed by individuals exiting radiological 
areas established to control removable contamination and/or 
airborne radioactivity.
  (g) Protective clothing shall be required for entry to areas 
in which removable contamination exists at levels exceeding 
those specified in appendix D to this part. 




Subpart F-Entry Control Program