Palo Verde provides the following response: Palo Verde uses 0.3 micron filters online and we change to 6.0 micron filters about one month prior to each outage due to high levels of crud being released into the RCS as boron and lithium concentrations change.
********************************************************************** 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 ********************************************************************** From: [email protected] [mailto:[email protected]] On Behalf Of MCCULLAH, A MICHAEL Sent: Tuesday, May 22, 2012 8:42 AM To: [email protected] Subject: Powernet: Filter Micron Size Arkansas Nuclear One Radiation Protection would like to know: 1. What is the micron size of your "Letdown / Make-up / RHR" filters used during normal operations? 2. Do you change size prior to an outage for crud-burst clean up? 3. If so, what size do you change to? Bob Sebring Radiation Protection Arkansas Nuclear One 1448 SR 333 Russellville, AR 72802 479-858-4841 [email protected]<mailto:[email protected]> --- 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.
