ENS 47902

v t e ENS Event
16:33 May 7, 2012
Title	Inadvertent Emergency Siren Actuation
Event Description	This event is being reported in accordance with 10 CFR 50.72(b)(2)(xi). On May 7, 2012, at approximately 1233 hours0.0143 days <br />0.343 hours <br />0.00204 weeks <br />4.691565e-4 months <br /> [EDT], an inadvertent actuation of the Perry Nuclear Power Plant's alert notification system occurred. Twenty of the seventy-six total sirens sounded for three minutes affecting Ashtabula, Geauga, and Lake Counties. Following the actuation the county agencies received calls from members of the public. A successful quiet test of the sirens had been conducted earlier in the day (at approximately 0830 hours0.00961 days <br />0.231 hours <br />0.00137 weeks <br />3.15815e-4 months <br /> [EDT]). At this time, all sirens are functioning correctly. The siren actuation was not related to any condition or event at the Perry Nuclear Power Plant. The actuation signal originated from the Lake County Emergency Operations Center while thunderstorms were passing through the area. Additional investigation is in progress to determine the cause of the inadvertent actuation. At the time of the event, the plant was in Mode 1 at 100 percent rated thermal power. Lake County officials plant to issue a press release. The NRC Resident Inspector has been notified.

ENS 47902 +/-
Where
Perry Ohio (NRC Region 3)
Reporting

10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release
Time - Person (Reporting Time:+-0.28 h-0.0117 days <br />-0.00167 weeks <br />-3.83544e-4 months <br />)
Opened:	Tom Morse 16:16 May 7, 2012
NRC Officer:	Pete Snyder
Last Updated:	May 7, 2012
47902 - NRC Website
v • d • e

v t e Emergency Notification System
Perry with 10 CFR 50.72(b)(2)(xi), Notification to Government Agency or News Release
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