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Annual Assessment Meeting Open House June 21, 2016
	ML16174A315
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Site:	Davis Besse
Issue date:	06/21/2016
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Davis-Besse Nuclear Power Station Annual Assessment Meeting Open House June 21, 2016 2015 Reactor Oversight Process Nuclear Regulatory Commission - Region III

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.

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What We Regulate Reactors Materials Waste

What We Dont Regulate Military Radon X-Rays

Some Nuclear Facts

100 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.

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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 6

How We Regulate Regulatory Framework NRCs Safety Mission Strategic Performance Areas Cornerstones Cross-Cutting Areas Human Performance--Safety Conscious Work Environment--Problem Identification &

Resolution

Reactor Oversight Process Strategic Performance Areas Safety Cornerstones Baseline Inspection Performance Indicator Results Results Significance Significance Threshold Threshold Action Matrix Regulatory Response 9

Significance Threshold Performance Indicators Green White Yellow Red Increasing Safety Significance Inspection Findings Green White Yellow Red Increasing Safety Significance

Action Matrix Columns Licensee Regulatory Degraded Multiple/Repetitive Unacceptable Response Response Degraded Performance Increasing

Safety Significance

Inspection

Management Involvement

Regulatory Action

National Summary of Plant Performance Status as of 02/22/2016 Licensee Response 90 Regulatory Response 7 Degraded Cornerstone 0 Multiple/Repetitive Deg. Cornerstone 3 Unacceptable 0 IMC 0350 Oversight 0 Total 100 12

National Summary

Performance Indicator Results for 2015*

- Green 6686

- White 12

- Yellow 0

- Red 0

PIs are counted per plant per quarter

Total Inspection Findings in 2015#

- Green 782

- White 8

- Yellow 0

- Red 0

Finding data current as of 2/22/2016 13

NRC Annual Assessment Summary Davis-Besse Nuclear Power Station FirstEnergy Nuclear Operating Company operated the station safely and in a manner that preserved the public health and safety and protected the environment.

Davis-Besse was in the Licensee Response Column of the NRCs Action Matrix in the third quarter of 2015 Davis-Besse was in the Regulatory Response Column in first, second, and fourth quarters of 2015 due to one or more Greater-than-Green violations associated with the Physical Protection cornerstone No Cross-Cutting Themes were identified 14 14

NRC Inspection Activities Davis-Besse 2015 5761 total hours expended by NRC on Reactor Oversight Process activities 2429 inspector hours of direct inspection activity 638 inspector hours reviewing and observing plant operating status 1500 inspector hours of preparation for and documentation of inspection activities 1194 hours0.0138 days <br />0.332 hours <br />0.00197 weeks <br />4.54317e-4 months <br /> for other Reactor Oversight Process elements (e.g., assessments and communications) 15

NRC Inspection Activities Davis-Besse Nuclear Power Station for 2015 2 resident inspectors on site - residents produced four quarterly inspection reports and walked through the plant daily 24 other inspectors participated in various inspections 3 major team inspections Supplemental Inspection for a Regulatory Response column entry Component Design Basis Inspection Biennial Problem Identification and Resolution Inspection 16

Significance Threshold Performance Indicators Green Baseline Inspection White Requires additional NRC oversight Yellow Requires more NRC oversight Red Requires most NRC oversight Inspection Findings Green Very low safety issue White Low to moderate safety issue Yellow Substantial safety issue Red High safety issue 17

Davis-Besse PIs and Findings January 1 through December 31, 2015 All Green Performance Indicators 9 Green/Severity Level IV Inspection Findings 1 or more Greater-Than-Green Inspection Findings associated with the Security Cornerstone 18

Safety Significant Findings Davis-Besse Nuclear Power Station One or more Greater-Than-Green Findings carryover from 2014 Corrective Actions Found Sufficient during Inspection in Second Quarter of 2015 Davis-Besse transitioned to Licensee Response Column at beginning of third quarter 2015 One or more Greater-Than-Green Findings in fourth quarter of 2015 Davis-Besse transitioned to Regulatory Response Column at beginning of fourth quarter 2015

NRC Inspection Findings Some Examples of Green Findings Davis-Besse Nuclear Power Station Failure to maintain Flow-Accelerated Corrosion Computer Model results in a non-safety piping failure Failure to install and control reactor coolant pump seal vent flexible hoses per design analyses Failure to request and obtain a license amendment for use of an unreviewed method of analysis for the capability of the shield building 20

NRC Inspection Plans for 2016 Davis-Besse Nuclear Plant NRC Plans Baseline Inspections for 2016 This includes the following major team inspections:

Post License Renewal Inspection (completed)

Triennial Fire Protection Inspection Initial Reactor Operator License Examinations Supplemental Inspection for one or more Greater-Than-Green inspection findings 21

Davis-Besse Fukushima Recommendations Status Mitigating Strategies (MS) & Spent Fuel Pool Instrumentation (SFPI) Order

MS Order requires strategies to cope with a long term loss of safety systems

SFPI Order requires plants to be able to tell if water is at or above certain levels

Site Audit was performed in November 2015

Site Safety Evaluation scheduled to be issued after the NRC receives the site compliance letter

Regional inspection of MS inspection (TI 191, Rev 1) will be performed after Safety Evaluation issued 22

Davis-Besse Fukushima Flooding Response Status

Flooding Hazard Reevaluations

- Reevaluate Hazards using present-Day information

- Flooding Was Submitted March 2015

- Staff assessments will be issued by December 2016

- Inspectors completed TI-190 which verified a licensees interim actions were appropriate to mitigate the reevaluated flood levels.

Licensees will address the reevaluated flood heights as part of their Mitigating Strategies Assessment, and if impacted take one of four potential paths:

1) No change; 2) procedural change;

3) physical modifications; 4) Revised Mitigating Strategies 23

Davis-Besse Fukushima Seismic Response Status