Columbia’s responses:
1. What are your typical radiological conditions in the cavity during reactor head set at your station (e.g., contamination levels) 50,000dpm/100cm2 to 200mRad/hr/100cm2. 2. What are your station’s requirements for respiratory protection and protective clothing for workers in the cavity during reactor head set? Inner cloth coveralls, outer water resistant coveralls and a PAPR. 3. Also, is there feasibly anything that can be done to improve Surry’s radiological conditions in the cavity during reactor head set? We do not have polished cavity surfaces and do not perform ultrasonic cleaning of spent fuel. That’s the Million Dollar Question. Ray Thomson Health Physics Craft Supervisor Columbia Generating Station [email protected] Office, 509-377-8273 From: [email protected] [mailto:[email protected]] On Behalf Of John Sukosky (Generation - 3) Sent: Friday, March 07, 2014 10:19 AM To: [email protected] Subject: Powernet: Do You Allow Workers to Enter Cavity During Rx Head Set Without Respiratory Protection? It is probably easier for you to reply via email, but I would enjoy talking with you. When we drain the cavity following refueling we typically find contamination levels exceeding 1,000,000 dpm/100 cm2 and multiple spots >1 rem/hour on contact. We, therefore, prescribe plastic suits and PAPHs for an HP and SRO to enter the cavity during reactor head set. I was challenged to determine why other plants experience contamination levels < 200,000 dpm/100 cm2 and are able to allow entry into the cavity without respiratory protection during reactor head set. 1. What are your typical radiological conditions in the cavity during reactor head set at your station (e.g., contamination levels) 2. What are your station’s requirements for respiratory protection and protective clothing for workers in the cavity during reactor head set? 3. Also, is there feasibly anything that can be done to improve Surry’s radiological conditions in the cavity during reactor head set? We do not have polished cavity surfaces and do not perform ultrasonic cleaning of spent fuel. A quick response would be greatly appreciated. Jim Keithley Sr. Health Physicist Surry Power Station (757) 365-2069 (757) 365-0536 [email protected]<mailto:[email protected]> ________________________________ CONFIDENTIALITY NOTICE: This electronic message contains information which may be legally confidential and or privileged and does not in any case represent a firm ENERGY COMMODITY bid or offer relating thereto which binds the sender without an additional express written confirmation to that effect. The information is intended solely for the individual or entity named above and access by anyone else is unauthorized. If you are not the intended recipient, any disclosure, copying, distribution, or use of the contents of this information is prohibited and may be unlawful. If you have received this electronic transmission in error, please reply immediately to the sender that you have received the message in error, and delete it. Thank you.
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