ML12115A322

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Annual Assessment Meeting Open House - NRC Slides
ML12115A322
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Site: Duane Arnold NextEra Energy icon.png
Issue date: 04/26/2012
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Duane Arnold Energy Center Annual Assessment Meeting O

Open House H

Reactor Oversight Process - 2011 Nuclear Regulatory Commission - Region III Palo, IA April 26, 2012 1

Region III Organization Cindy Pederson Acting Regional Administrator Jennifer Uhle Acting Deputy Regional Administrator Steve West Steve Reynolds Director Division of Reactor Projects Director Division of Reactor Safety Gary Shear Ken OBrien Deputy Director Deputy Director Mark Ring Regional Specialists Branch Chief Duane Arnold Project Engineer Resident Inspectors Robert Orlikowski Lucas Haeg, SRI Robert Murray, RI Reactor Engineers Jason Draper Roy Elliott 2

Our Mission

  • To license and regulate the nations civilian use of byproduct, source, and special nuclear materials to ensure adequate protection of public health and safety, promote the common defense and security, and protect the environment.

3

Some Nuclear Facts

  • 104 nuclear power plants supply about 20 percent of the electricity in the U.S.
  • Nuclear materials are used in medicine for diagnosis and cancer treatment.
  • Nuclear materials are widely used in industry, such as in density gauges, flow measurement devices, radiography devices, and irradiators.

4

The NRC Regulates

  • Nuclear reactors - commercial power reactors, research and test reactors, new reactor designs
  • Nuclear materials - nuclear reactor fuel, radioactive materials for medical, industrial, and academic use
  • Nuclear waste - transportation, storage and disposal of nuclear material and waste, decommissioning of nuclear facilities
  • Nuclear security - physical security of nuclear facilities and materials from sabotage or attacks 5

What We Dont Do

  • Regulate nuclear weapons, military reactors, or space vehicle reactors
  • Own or operate nuclear power plants
  • Regulate some radioactive materials, such as X-rays and naturally occurring radon 6

How We Regulate

  • Establish rules and regulations
  • Issue licenses
  • Provide oversight through inspection, enforcement, f t andd evaluation l ti off operational experience
  • Conduct research to provide support for regulatory decisions
  • Respond to events and emergencies 7

Assurance of Plant Safety

  • Require defense-in-depth
  • Require long-term maintenance of equipment
  • Require continual training of operators
  • Verify compliance with regulations 8

What We Do - Nuclear Waste

  • The NRC regulates:

- Storage of spent reactor fuel in fuel pools or dry storage casks and casks,

- Any national spent fuel storage site, such as the proposed Yucca Mountain site.

9

What We Do - Nuclear Security

  • NRC Requires:

- Well-armed and well-trained security forces,

- Surveillance and perimeter patrols,

- State-of-the-art site access equipment and controls,

- Physical barriers and detection zones, and

- Intrusion detection systems and alarm stations.

10

NRC Performance Goals

  • 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.

11

Reactor Oversight Process Strategic Performance Areas Safety Cornerstones Performance Indicator Baseline Inspection Results Results Significance Significance Threshold Threshold Action Matrix Regulatory Response 12

Examples of Baseline Inspections

  • Equipment Alignment ~80 hrs/yr
  • Triennial Fire Protection ~250 hrs every 3 yrs
  • Operator Response ~125 hrs/yr
  • Emergency E Preparedness P d ~80 80 h hrs/yr

/

  • Rad Release Controls ~110 hrs every 2 yrs
  • Worker Radiation Protection ~95 hrs/yr
  • Corrective Action Program ~250 hrs every 2 yrs
  • Corrective Action Case Reviews ~60 hrs/yr 13

Significance Threshold Performance Indicators Green: Only Baseline Inspection White: Increases NRC oversight Yellow: Increases NRC oversight Red: Increases NRC oversight Inspection Findings Green: Very low safety issue White: Low to moderate safety issue Yellow: Substantial safety issue Red: High safety issue 14

Action Matrix Concept Licensee Regulatory Degraded Multiple/R ep. Unacceptable Response Response Cornerstone Degraded Perform ance Cornerstone Increasing Safety Significance Increasing NRC Inspection Efforts Increasing NRC/Licensee Management Involvement Increasing Regulatory Actions 15

National Summary of Plant Performance Status as of 12/31/2011 Licensee Response (DAEC is here) 88 Regulatory Response 11 Degraded Cornerstone 3 Multiple/Repetitive Deg. Cornerstone 1 Unacceptable 0 IMC 0350 Oversight 1 Total 104 16

National Summary

  • Performance Indicator Results for 2011*

- Green 6585

- White 9

- Yellow 0

- Red 0

  • PIs are counted per plant per quarter
  • Total Inspection Findings in 2011#

- Green 846

- White 13

- Yellow 2

- Red 0

  1. Finding data current as of 2/24/2012 and does not include security findings 17

Duane Arnold Assessment Results January 1 - December 31, 2011

  • Duane Arnold remains in the Licensee Response Column of the ROP Action Matrix
  • All findings and performance indicators were green
  • 10 Green findings and 1 SL-IV NCV 18

Duane Arnold Inspection Activities January 1 - December 31, 2011

  • Inspectors spent over 1950 hours0.0226 days <br />0.542 hours <br />0.00322 weeks <br />7.41975e-4 months <br /> on direct inspection effort at Duane Arnold during calendar l d year 2011, 2011 which hi h included i l d d both b th baseline inspection activities as well as inspections following the March earthquake and tsunami in Japan.

19

Duane Arnold Inspection Activities January 1 - December 31, 2011

  • In addition to the inspections performed by th Resident the R id t Inspectors, I t severall other th inspections were performed during this assessment period, including:

- Biennial Problem Identification & Resolution Inspection

- Component Design Basis Inspection 20

Duane Arnold Annual Assessment Summary January 1 - December 31, 2011

  • NextEra operated Duane Arnold in a manner that preserved public health and safety
  • All cornerstone objectives were met 21

Duane Arnold Annual Assessment Summary January 1 - December 31, 2011

  • No substantive cross-cutting issues e e identified were de t ed
  • NRC plans baseline inspections at Duane Arnold for 2012 22

Open to the Public

  • The NRC places a high priority on keeping the public and stakeholders informed of its activities.
  • At www.nrc.gov, you can:

- Find public meeting dates and transcripts;

- Read NRC testimony, speeches, press releases, and policy decisions; and

- Access the agencys Electronic Reading Room to find NRC publications and documents.

23

Contacting the NRC

  • Report an emergency

- (301) 816-5100 (call collect)

  • Report a safety concern

- (800) 695-7403

- Allegation@nrc.gov

  • General information or questions

- www.nrc.gov

- Select What We Do for Public Affairs 24

Actions in Response to the Japan Nuclear Accident

  • Mailbox for comments on staff actions:

JLD_Public.Resource@nrc.gov

  • Office of Public Affairs Point of

Contact:

OPA.resource@nrc.gov or 301-415-8200 25

NRC Representatives

  • Lucas Haeg, Senior Resident Inspector

- (319) 851-5111

- (319) 851-5111

  • Mark Ring, Branch Chief

- ((630)) 829-9703

- (630) 829-9662

- (630) 829-9663

  • NRC Region III Office Switchboard

- (630) 829-9500 (800) 522-3025 26

NRC Social Media Channels

Reference Sources

  • Reactor Oversight Process

- http://www.nrc.gov/NRR/OVERSIGHT/ASSESS/

  • Public Electronic Reading Room

- http://www.nrc.gov/reading-rm.html

  • Public Document Room 800-397-4209 (Toll Free) 28

Fukushima Dai-ichi Before Earthquake Reactors 5 & 6 Reactor #1 Reactor #2 Shutdown Operating Operating Reactor # 3 Operating Reactor

  1. 4 Shutdown

Japan Earthquake and Tsunami March 11, 2011

Sequence of Events

  • Three operating units shutdown at time of earthquake
  • Offsite power lost; emergency diesels supply power
  • 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> later Tsunami strikes site and wipes-out emergency power.
  • Extended station blackout -loss loss of all AC power
  • DC batteries deplete and subsequent loss of reactor cooling
  • Late injection of seawater using fire trucks
  • Significant core damage at units 1, 2, and 3
  • Hydrogen generated from metal water reaction in cores
  • Hydrogen explosions in Units 1, 3, and 4 reactor buildings
  • Spent Fuel Pool status indications lost -distracted attention from damaged reactors
  • Tsunami exceeded the design assumption that led to extensive plant damage and extended station blackout

Reactors 3 & 4 Post-Event NRC Actions Post Fukushima

  • Immediate response measures including NRC assist team to Japan
  • Prompt (April & May) inspections of capability of US nuclear plants
  • Near Term Task Force

Conclusions:

- US nuclear plants are safe

- Use Fukushima Lessons Learned to enhance safety at US nuclear plants

NRC Orders and Information Requests

  • Strategies and equipment for beyond-design-basis phenomena
  • Reevaluation of seismic & flood hazards
  • Design basis check for seismic & flood
  • Prolonged blackout communications
  • Staffing for multi-unit and prolonged blackout events
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