ML063180273

Slides for Kewaunee 10/25/06 Summary Meeting

ML063180273
Person / Time
Site:	Kewaunee
Issue date:	10/25/2006
From:	Division of Nuclear Materials Safety III
To:
References
Download: ML063180273 (11)

Text

NRC Regulatory Performance Meeting Kewaunee Nuclear Power Station Kewaunee, Wisconsin October 25, 2006

Purpose of Todays Meeting Discuss NRC regulatory activities regarding Kewaunee Power Station and actions by Dominion associated with Mitigating Systems Cornerstone findings to arrive at a shared understanding of the performance issues, underlying causes, and planned corrective actions.

Agenda

• Introduction

• Review Degraded Cornerstone

• 95002 Inspection and Results

• Kewaunee Management Response and Remarks

• NRC Closing Remarks

• Break

• NRC available to address public questions

NRC Action Matrix Degraded Cornerstone Column

• One Yellow finding, related to flooding vulnerabilities in the turbine building basement, affected the Mitigating Systems Cornerstone and placed the performance of Kewaunee in the Degraded Cornerstone Column of the NRCs Action Matrix for the fourth quarter of 2005.

• At that time, Kewaunee performance was in the Regulatory Response Column due to a White finding related to possible air entrainment in the auxiliary feedwater pumps.

• As a result of the findings, the licensee placed the identified deficiencies in the corrective action program and performed an evaluation of the root and contributing causes for both individual and collective issues.

NRC Inspection In Response to Degraded Cornerstone Performance

• The licensees root cause evaluations were reviewed in accordance with Action Matrix through performance of Inspection Procedure 95002, Supplemental Inspection for One Degraded Cornerstone or Any Three White Inputs in a Strategic Performance Area.

• Scope of NRC inspection included evaluations for both Yellow and White findings.

• Inspection completed in May 2006 (05000305/2006007, ADAMS Accession ML061860453).

95002 Inspection Results

• NRC inspection results revealed that the Kewaunee staff had not conducted the root cause evaluations to a level of detail commensurate with the significance of the problems.

• NRC determined that not all corrective actions were sufficiently developed to ensure that the identified performance deficiencies were adequately addressed.

• NRC concluded that Kewaunee staff had not established either qualitative or quantitative measures for determining the effectiveness of the corrective actions to prevent recurrence.

• Consequently, the NRC did not have assurance that the planned corrective actions were sufficient to address the causes for the performance deficiencies associated with the Yellow and White findings.

95002 Followup Inspection

• Followup inspection performed in August 2006, subsequent to Kewaunee revision of the root cause evaluations.

• Inspection completed in August 2006 (05000305/2006015, ADAMS Accession ML062650366).

• Purpose of the inspection was to:

• assess deficiencies identified during May 2006 inspection,

• assess the corrected root cause evaluations, and

• assess the combined root cause evaluation that was performed as a result of the deficiencies identified in May 2006.

95002 Followup Inspection - Results

{ NRC concluded that revised Kewaunee licensees evaluations adequately addressed issues and deficiencies identified during May 2006 inspection.

{ The revised individual root cause, and the associated common cause evaluations, appropriately evaluated the root and contributing causes, addressed the extent of condition/cause, assessed safety culture, and established corrective actions.

{ Inspectors identified that tools were not established to measure the success of the related corrective actions; however, the licensee addressed these concerns during the inspection by revising procedures and corrective actions to provide assurance that the corrective actions would be measurable and successful.

{ NRC concluded that the Yellow finding for flooding vulnerabilities and the White finding for auxiliary feedwater could be closed.

Kewaunee Management Response and Remarks

NRC Closing Remarks