11 avril 2018
Le déversement d’hydrazine dans la rivière Susquehanna qui a dépassé les normes d’autorisation aurait duré 16 minutes. Il n’y aurait eu aucun impact du rejet sur la santé ou sur l’environnement. Diffcile à savoir puisque les volumes du rejet de ce puissant toxique ne sont pas fournis : voir la fiche jointe : FicheToxSynthetique_21 Hydrazine
▸ Type : PWR - Puissance : 2 568 MWth - Première divergence : 06 / 1974 -
available in english only
Event Number : 53323
Facility : THREE MILE ISLAND - State : PA
Unit : [1] - RX Type : [1] B&W-L-LP,
Event Date : 04/11/2018 - Event Time : 05:42 [EDT]
Emergency Class : NON EMERGENCY 10 CFR Section : 50.72(b)(2)(xi) - OFFSITE NOTIFICATION
Initial PWR : 100 %
Current PWR : 100 %
Event Text
OFFSITE NOTIFICATION DUE TO HYDRAZINE SPILL
"On April 11, 2018, a hydrazine spill resulted in measurable hydrazine levels released at the station outfall to the Susquehanna River over an approximately 16 minute time period. The hydrazine levels exceeded the station NPDES [National Pollutant Discharge Elimination System] permit effluent limitations. The Industrial Waste Treatment system release to the river was secured and no further hydrazine was released to the river.
"The concentrations released did not threaten the downstream users or the environment. Pennsylvania Department of Environmental Protection was notified of the NPDES non-compliance on April 11, 2018 at 0542 EDT.
"Pursuant to 10 CFR 50.72(b)(2)(xi), this notification satisfies the requirement to notify the NRC of the occurrence of any event or situation related to the health and safety of the public or onsite personnel, or protection of the environment, for which notification to other government agencies has been made.
"The NRC Resident Inspector has been notified."
https://www.nrc.gov/reading-rm/doc-collections/event-status/event/2018/20180412en.html
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