31 octobre 2016
La déclaration "volontaire et informelle" effectuée auprès du ministère (LDEQ) et du Centre d’intervention d’urgence concerne un rejet estimé à 571 litres d’eau contaminée en tritium. L’activité aurait été de 8,2 10E-3 µCi/l (Soit 303 Bq/l). L’écoulement a duré 5 minutes le temps que les pompes soient sécurisées.
Type : PWR - Puissance : 3 716 MWth - Première divergence : 03/1985 -
Available in english only
Event Number : 52336
Facility : WATERFORD
State : LA - Unit : [3] - RX Type : [3] CE
Event Date : 10/31/2016 - Event Time : 15:50 [CDT]
Emergency Class : NON EMERGENCY 10 CFR Section : 50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Initial PWR : 45 % Current PWR : 45 %
Event Text
OFFSITE NOTIFICATION FOR TRITIUM CONTAMINATED WATER SPILLED TO STORM DRAIN
"On October 31, 2016, an informal, voluntary communication was made to the Louisiana Department of Environmental Quality (LDEQ) and the Saint Charles Parish Emergency Operating Center concerning a spill of greater than 100 gallons (estimated 150 gallons total) of Tritium contaminated water to the storm drains located within the Protected Area. Tritium activity was 8.201E-06 micro Ci/ml and no detectable gamma activity. The spill lasted approximately 5 minutes before the pump moving the tritium contaminated water was secured. The contaminated water came from the Condensate Polisher Backwash Storage Tank and discharged from a [loose] hose connection going to a baker tank located within the protected area."
The licensee has notified the NRC Resident Inspector.
https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2016/20161101en.html#en52336
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