To all- One of our colleagues in chemistry attended a conference and brought back the following OPEX. We were asked to poll the industry . " Co-60 concentrations at FitzPatrick took a step change decrease following the fall 2008 refueling outage. The station did replace eight OEM CRBs in the fall 2008 refueling outage, but station experience shows that a step change decrease in Co-60 concentrations did not occur with a similar number of OEM CRBs replaced in past outages. * According to the station, in the fall 2008 refueling a significant effort was implemented to vacuum out portions of the RPV. The annulus was vacuumed as well as guide tubes (for removed CRDs) during CRD exchange. "
1. Has your site or are you aware of any other sites that have experienced this phenomena? ______ Yes __X___ No 2. Contact e-mail/phone: ____Hal Trimble 856-339-1608 Hope Creek has no OEM blades and has a very systematic, tracable trend with Cobalt. ----------------------------------------- The information contained in this e-mail, including any attachment(s), is intended solely for use by the named addressee(s). If you are not the intended recipient, or a person designated as responsible for delivering such messages to the intended recipient, you are not authorized to disclose, copy, distribute or retain this message, in whole or in part, without written authorization from PSEG. This e-mail may contain proprietary, confidential or privileged information. If you have received this message in error, please notify the sender immediately. This notice is included in all e-mail messages leaving PSEG. Thank you for your cooperation.
