Columbia Generating Station uses three classifications for radiological risk assessment, medium risk, elevated risk and high risk. These are in addition to our Site Wide risk assessment procedure.
Examples of each. Medium Risk, work in areas >50,000dpm/100cm2 beta-gamma or 20dpm/100cm2 alpha. Entry into LHRA which do not meet elevated risk criteria. Elevated Risk, work area dose rates >800 mRem/hr. Work in areas requiring multiple whole body dosimetry is. High Risk, extremity dose expected to exceed 5000mRem. Transfer of radioactive material with dose rates >1000mRem at 30cm. Ray Thomson Health Physics Staff Advisor Columbia Generating Station [email protected] 509-377-8273 From: [email protected] [mailto:[email protected]] On Behalf Of Pell, Bryan Sent: Monday, May 23, 2011 1:19 PM To: '[email protected]' Subject: Powernet: Radiological Risk Constellation is benchmarking radiological risk. Does your site define radiological low, medium, or high risk? What criteria does your site use to establish low, medium and high radiological risk? For example, what makes a job radiological high risk? Thanks, Bryan Bryan S. Pell R.E. Ginna Nuclear Power Plant Senior Plant Health Physicist (585) 771-3804 [email protected] P Please consider the environment before printing >>> This e-mail and any attachments are confidential, may contain legal, >>> professional or other privileged information, and are intended solely for >>> the addressee. If you are not the intended recipient, do not use the >>> information in this e-mail in any way, delete this e-mail and notify the >>> sender. CEG-IP1
