Seth, North Anna performs a quarterly survey of our ISFSI which is tied to our Area TLD monitoring program. In addition, we do perform a survey when we place a new cask at the storage pad (RWP requirement).
Barbara J. Thompson Supervisor of Exposure Control Dominion - North Anna Power Station Email: [email protected]<mailto:[email protected]> Phone: 540-894-2605 Beeper: #3469 FAX: 540-894-2408 From: [email protected] [mailto:[email protected]] On Behalf Of [email protected] Sent: Thursday, September 06, 2012 3:39 PM To: [email protected] Subject: Powernet: Quick Benchmark on ISFSI Survey Frequency Currently, Palo Verde surveys our Independent Spent Fuel Storage Installation (ISFSI) on a quarterly basis. However, we are considering reducing this frequency to semi-annual to coincide with the completion of each scheduled semi-annual dry cask storage campaign. The ISFSI is visually monitored each shift by Members of Security, each cask has a leak detection system with alarm, and a review of the past 12 years of surveys shows that radiological conditions only change with the addition of casks to the storage pad. Question: Palo Verde would like to know what survey periodicity, e.g., quarterly, semi-annually, etc., that you use for performing ISFSI surveys? What basis did you use to determine survey frequency, e.g., tied to a regulatory commitment (10 CFR Part 72), UFSAR, 05-008? Seth ********************************************************************** Seth J. Kanter, CHP, RRPT Sr. Health Physicist Palo Verde Nuclear Generating Station Mail Sta. 7397 5801 S. Wintersburg Rd. Tonopah, AZ 85354 Phone (623) 393-3130 Cell (602) 376-7131 or (602) 402-5764 Fax (623) 393-1853 Unless otherwise noted, all opinions are my own Liviu Librescu ********************************************************************** --- NOTICE --- This message is for the designated recipient only and may contain confidential, privileged or proprietary information. If you have received it in error, please notify the sender immediately and delete the original and any copy or printout. Unintended recipients are prohibited from making any other use of this e-mail. Although we have taken reasonable precautions to ensure no viruses are present in this e-mail, we accept no liability for any loss or damage arising from the use of this e-mail or attachments, or for any delay or errors or omissions in the contents which result from e-mail transmission. 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.
