ML15135A425

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EOC Mtg Slides
ML15135A425
Person / Time
Site: Dresden  Constellation icon.png
Issue date: 05/19/2015
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Division of Nuclear Materials Safety III
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Download: ML15135A425 (7)
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Dresden Nuclear Power Station Units 2 and 3 Annual Assessment Meeting Open House May 19, 2015 2014 Reactor Oversight Process Nuclear Regulatory Commission - Region III

Our Mission The NRC Regulates To license and regulate the

  • Nuclear reactors commercial power reactors, research and test reactors, new reactor designs nations civilian use of byproduct, source, and
  • Nuclear materials nuclear reactor fuel, radioactive materials special nuclear materials to for medical, industrial, and academic use ensure adequate protection of public health and safety,
  • Nuclear waste - transportation, storage and disposal of promote the common nuclear material and waste, decommissioning of nuclear defense and security, and facilities protect the environment.
  • Nuclear security - physical security of nuclear facilities and materials from sabotage or attacks 2 3 What We Dont Do Some Nuclear Facts
  • Regulate nuclear weapons, military reactors,
  • 99 nuclear power plants supply or space vehicle reactors about 20 percent of the electricity in the U.S.
  • Nuclear materials are used in
  • Own or operate nuclear power plants medicine for diagnosis and cancer treatment.
  • Nuclear materials are widely used in
  • Regulate some radioactive materials, such as industry, such as in density gauges, flow measurement devices, Xrays and naturally occurring radon radiography devices, and irradiators.

4 5 1

NRC Performance Goals How We Regulate Safety - Ensure adequate protection of public health and safety and the environment Security - Ensure adequate protection in the secure use and management of radioactive materials 6 7 6

Regulatory Framework Reactor Oversight Process Strategic NRCs Safety Performance Areas Mission Safety Cornerstones Strategic Baseline Inspection Performance Indicator Results Results Performance Areas Significance Significance Threshold Threshold Cornerstones Action Matrix Cross-Cutting Areas Regulatory Response Human Performance--Safety Conscious Work Environment 8 Problem Identification & Resolution 9

2

Significance Threshold Significance Threshold Performance Indicators Performance Indicators Green Baseline Inspection White Requires additional NRC oversight Green White Yellow Red Yellow Requires more NRC oversight Red Requires most NRC oversight Increasing Safety Significance Inspection Findings Inspection Findings Green Very low safety issue Green White Yellow Red White Low to moderate safety issue Yellow Substantial safety issue Increasing Safety Significance Red High safety issue 10 11 11 Action Matrix Columns Industry-Wide Performance 5 01 As of 12/31/2014 Licensee Regulatory Degraded Multiple/Repetitive Unacceptable Response Response Degraded Performance 14 Licensee Response Regulatory Response Increasing Degraded Cornerstone

  • Safety Significance Multiple/Repetitive
  • Inspection Degraded Cornerstone
  • Management Involvement Unacceptable
  • Regulatory Action IMC 0350 Process 80 12 13 3

Industry-Wide Inspection Findings Industry-Wide Performance Indicators Finding data current as of 1/31/2015 Calendar Year Calendar Year 2014 data 2014 data Green 703 Green 6740 White 16 White 16 Yellow 0 Yellow 3 Red 0 Red 0 14 15 NRC Annual Assessment Summary NRC Inspection Activities Dresden Nuclear Power Station Dresden Station 2014 2014 5418 total hours expended by NRC on Reactor Exelon operated the station safely and in a manner that preserved the Oversight Process activities public health and safety and protected the environment.

Dresden Unit 2 was in the Licensee Response Column of the NRCs 2459 inspector hours of direct inspection activity Action Matrix for the all four quarters of 2014 586 inspector hours reviewing and observing plant Dresden Unit 2 transitioned to Regulatory Response Column in first operating status quarter of 2015 due to a White performance indicator for greater than 3 scrams per 7000 operating hours 1723 inspector hours of preparation for and Dresden Unit 3 was in the Licensee Response Column of the NRCs documentation of inspection activities Action Matrix for the first three quarters of 2014.

Dresden Unit 3 was in the Regulatory Response Column for the fourth 649 hours0.00751 days <br />0.18 hours <br />0.00107 weeks <br />2.469445e-4 months <br /> for other Reactor Oversight Process quarter of 2014 due to a White finding associated with the inoperability elements (e.g., assessments and communications) of an Electromatic Relief Valve No Substantive CrossCutting Issues were identified 16 17 16 17 4

NRC Inspection Activities Dresden PIs and Findings Dresden Nuclear Station January 1 through December 31, 2014 2014 2 resident inspectors on site - residents produced four quarterly inspection reports and performed daily plant All Green Performance Indicators walkthroughs 11 Green/Severity Level IV 36 region based inspectors participated in various Inspection Findings inspections 1 White Inspection Finding 2 major team inspections - Triennial Fire Program and Biennial Problem Identification and Resolution 18 19 18 19 Safety Significant/White Findings NRC Inspection Findings Dresden Nuclear Unit 3 Some Examples of 2014 Green Findings Dresden Nuclear Power Station NRC Identified one White finding in Fourth Quarter of 2014 Involved one of four Electromatic Relief Valves on Main Deficiencies in evacuation time estimates Steam Lines Failure to correct unacceptable indications in Valves are designed to rapidly reduce reactor vessel pressure mechanical supports for a safetyrelated heat if needed exchanger Licensee failed to ensure continued operability of valve with increased steam flows after implementing an approved Failure to take appropriate corrective action when a power uprate Maintenance Rule performance goal was not met Unit 3 transitioned to Regulatory Response Column of the Failure to adequately incorporate operating Reactor Oversight Process effective for the Fourth Quarter of experience into site copy of a vendor manual used 2014 for equipment maintenance information 20 21 21 5

NRC Inspection Plans for 2015 Actions in Response to the Japan Dresden Nuclear Power Station Nuclear Accident NRC Plans Baseline Inspections and Supplemental Inspections

  • Actions in response to Japan Nuclear for 2015. This includes the following major team and supplemental inspections Accident: http://www.nrc.gov/japan/japan Review of corrective actions for White issue involving info.html operability of Electromatic Relief Valve - after notification from licensee that they are ready for inspection Review of corrective actions for White performance
  • Mailbox for comments on staff actions:

indicator - after notification from licensee that they are JLD_Public.Resource@nrc.gov ready for the inspection Triennial Modifications / 10CFR50.59 Changes Inspection -

second quarter 2015

  • Office of Public Affairs Point of

Contact:

Initial Licensed Operator Examinations (completed first OPA.resource@nrc.gov or 3014158200 and second quarter) 22 23 22 23 NRC Social Media Additional Questions?

Channels NRC Representatives Sr. Public Affairs Officer: Viktoria Mitlyng 6308299662

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