Ginna criteria: 3. PERFORM a TEDE ALARA Evaluation, Attachment 10, if:
a. The work is to be performed in a posted Airborne Radioactivity Area or there is a significant risk of an area becoming an Airborne Radioactivity Area anticipated DAC greater than 0.3 during the course of work, AND b. One OR more of the following conditions is met: 1) It is planned to issue a respirator for work AND the prospective external deep dose equivalent (DDE) exceeds 10 mrem DDE for the duration of the task (per individual). 2) The prospective radioactive material intake for work planned to be performed without respiratory protection exceeds 4 DAC-hours for the duration of the task (per individual). 3) It is planned to issue a respirator for work that has a lower APF than the anticipated peak airborne concentration in DACs. 4) Performing welding, burning, grinding or high energy machining on surface areas with greater than 10,000 dpm/100 cm2 loose contamination PER RPJC- JOBCOVERAGE. Stephen J Holmes, CHP PE Sr. Plant Health Physicist, CENG-RE Ginna NPP [email protected] 585-771-3577 From: [email protected] [mailto:[email protected]] On Behalf Of Beckham, Bob Sent: Tuesday, January 15, 2013 8:40 AM To: [email protected] Subject: Powernet: TEDE/ALARA Evaluation Duke Energy would appreciate any information other utilities can provide on the following: Duke fleet procedure calls for TEDE/ALARA evaluation if weighted DAC-hours are expected to result in ≥ 4 DAC-hours (10 mrem CEDE) per person. Anyone using different criteria, methods, values? Bob Beckham | Scientist | Fleet Scientific Services | Radiation Protection | Duke Energy Carolinas, LLC 526 S. Church St. | Mail Stop EC07F | Charlotte, NC 28202 | 704-382-6713 office | 704-453-6002 cell >>> 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. -IP1
