S NRC Event Notification Report, Callaway Leak

S NRC Event Notification Report, Jul 23, 2015 (emphasis added): Callaway Plant initiated a shutdown required by Technical Specifications (TS)… TS 3.4.13 Condition A was entered due to unidentified RCS [reactor coolant system] leakage being in excess of the 1 gpm TS limit. The leak was indicated by an increase in containment radiation readings… A containment entry identified a steam plume; due to personnel safety the exact location of the leak inside the containment building could not be determined. At this time radiation levels inside [the] containment are stable and slightly above normal. There have been no releases from the plant above normal levels.

http://www.nrc.gov/reading-rm/doc-collections/event-status/event/en.html#en51253