8 octobre 2014
Une vanne du système de refroidissement de la tour de traitement chimique est à l’origine de la fuite. Cette fuite, découverte à 21h10, a été isolée 5 minutes plus tard et le rejet dans l’environnement a cessé 15 minutes plus tard. Ce sont environ 254 litres d’hypochlorite qui ont été déversés dans la rivière Schuylkill. Une évaluation plus précise du rejet est en cours.
Type BWR Mark II - Puissance : 3 515 MWth - Première divergence : 12/1984
Available in english only.
Event Number : 50518
Facility : LIMERICK - State : PA - Unit :  RX Type :  GE-4
Event Date : 10/08/2014 - Event Time : 04:45
Emergency Class : NON EMERGENCY 10 CFR Section : 50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Initial PWR : 100 % Current PWR : 100 %
SODIUM HYPOCHLORITE LEAK WITH POTENTIAL TO ENTER THE ENVIRONMENT
"This notification is being made as a result of notifications to other government agencies. A sodium hypochlorite leak occurred on site at Limerick Generating station on 10/7/14, that had the potential to enter the environment. The leak has been isolated. A flow control valve in the U1 cooling tower chemical treatment system caused the leak. The sodium hypochlorite that leaked was deposited into the onsite Holding Pond. The Holding Pond was being discharged at the time of the leak in accordance with procedures to support normal plant operations. The leak was discovered at 2110 hours [EDT on 10/7/14] and isolated at 2115 hours. The Holding Pond discharge was secured at 2125 hours. Sampling of the Holding Pond confirmed the presence of sodium hypochlorite. Since the Holding Pond was being released at the time of the leak, there is a potential that greater than 67 gallons of sodium hypochlorite could have been released to the Schuylkill River. This report is being made due to the potential that a reportable quantity of sodium hypochlorite could have discharged to the Schuylkill River while the Holding Pond was releasing during the sodium hypochlorite leak. Evaluations are being performed to quantify this actual volume of sodium hypochlorite that was discharged as a result of the leak."