Columbia Generating Stations limits for fixed contamination on hand tools is 
<5000 ccpm/probe area, <1000 dpm/100cm2. Hand tools exceeding these limits are 
decontaminated or controlled for use in Contaminated Areas only. SAM used for 
tools returned to the Tool Crib is set at 35,000 dpm.


Ray Thomson
Health Physics Staff Advisor
Columbia Generating Station
[email protected]
509-377-8273



From: [email protected] [mailto:[email protected]] On Behalf Of 
[email protected]
Sent: Monday, July 25, 2011 3:18 PM
To: [email protected]
Subject: Powernet: Limits on contamination for hot tools?

This question has probably been asked and answered before but I'm wondering 
what you'all use for acceptable limits for contamination on hot tools (not 
those specifically designated for containment).  I assume no detectable 
smearable (< 1k dpm/100 cm2) but how about fixed?  5k dpm/probe area?  Any 
specific criteria for what total activity the tool exhibits if placed in a SAM? 
 Such as 20 nCi (~50k dpm)?

Thanks, Eric (San Onofre HP Tech Support)


Eric M. Goldin, CHP
Southern California Edison
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