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This is a reconstruction of the Chernobyl radioactive plume by the French Government's official agency on radiation and nuclear matters, the Institut de Radioprotection et Surete Nucleaire.

It is based on weather patterns for the time period April 26 to May 6 when the fire was burning inside the stricken reactor, and on known Cs-137 measurements.

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Notice of Licensee Meeting - Three Mile Island Power Station, Unit 1, on March 24, 2011

ADAMS Accession No. ML110620589

Annual Assessment Letter for Three Mile Island Nuclear Generating Station, Unit 1 (05000289/2010001)

ADAMS Accession No. ML110620216

Annual Assessment Letter for Susquehanna Steam Electric Station, Units 1 and 2 (05000387/2010001 and 05000388/2010001)

ADAMS Accession No. ML110620317

THREE MILE ISLAND NUCLEAR STATION:  NRC EMERGENCY PREPAREDNESS ANNUAL INSPECTION REPORT AND NRC SECURITY ANNUAL INSPECTION REPORT

ADAMS ACCESSION NO.:  ML110630512

SUSQUEHANNA STEAM ELECTRIC STATION:  NRC EMERGENCY PREPAREDNESS ANNUAL INSPECTION REPORT AND NRC SECURITY ANNUAL INSPECTION REPORT

ADAMS ACCESSION NO.:  ML110630507

PEACH BOTTOM ATOMIC POWER STATION:  NRC EMERGENCY PREPAREDNESS ANNUAL INSPECTION REPORT AND NRC SECURITY ANNUAL INSPECTION REPORT

ADAMS ACCESSION NO.:  ML110630452
 

Annual Assessment Letter for Peach Bottom Atomic Power Station (05000277/2010001 and 05000278/2010001)
 

ADAMS Accession No. ML110620331 (PDF)

Event Number: 46654
Event Date: 03/03/2011
Facility: SUSQUEHANNA

TECHNCIAL SPECIFICATION REQUIRED SHUTDOWN DUE TO INOPERABLE HPCI

At 2259 EST, Susquehanna Unit 1 commenced a TS Required shutdown for High Pressure Coolant Injection (HPCI) T.S. 3.5.1. Due to a suspected steam leak, the HPCI Inboard Steam Supply Valve HV155F002 was closed to attempt to identify and isolate an unknown drywell leakage condition. After closing the HV155F002, a detectable change in drywell leak rate occurred, therefore, HV155F002 was left closed. Closing HV155F002 makes HPCI INOP and UNAVAILABLE.

TS 3.5.1 was entered for this condition on 2/25/2011 at 2136 EST. LCO completion time for T.S. 3.5.1 entry is 3/11/2011 at 2136 EST.

The licensee has notified the NRC Resident Inspector and State authorities. The licensee also anticipates issuing a press release.

BRAIDWOOD STATION, UNITS 1 AND 2; BYRON STATION, UNIT NOS. 1 AND 2; CLINTON POWER STATION, UNIT NO.1; DRESDEN NUCLEAR POWER STATION, UNITS 2 AND 3; LASALLE COUNTY STATION, UNITS 1 AND 2; LIMERICK GENERATING STATION, UNITS 1 AND 2; OYSTER CREEK NUCLEAR GENERATING STATION; PEACH BOTTOM ATOMIC POWER STATION, UNITS 2, AND 3; QUAD CITIES NUCLEAR POWER STATION, UNITS 1 AND 2; AND THREE MILE ISLAND NUCLEAR STATION, UNIT 1 ­ REQUEST FOR ADDITIONAL INFORMATION REGARDING APPROVAL OF CYBER SECURITY PLAN (TAC NOS. ME4298, ME4299, ME4301, ME4302, ME4303, ME4304, ME4305, ME4306, ME4307, ME4308, ME4309, ME 4310, ME4311, ME4312, ME4313, AND ME4314)

Download ML110550875 (PDF)