ML061010139

EN-OP-111 - Operational Decision-Making Issue (ODMI) Process, Attachment 9.2 - ODMI Implementation Action Plan

ML061010139
Person / Time
Site:	Indian Point
Issue date:	10/06/2005
From:	Skonieczny J, Ventosa J - No Known Affiliation
To:	Office of Nuclear Reactor Regulation
References
EN-OP-111, FOIA/PA-2006-0019
Download: ML061010139 (3)

Text

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'Title: Moist hairline cracks in Unit 2 Spent Fuel Pool south wall.

"I.

• SuIbect I Issue:

Revision No. 0 Revision Date 9112/05

'CR1 # IP2-2005-0557 *Date CR Assigned as ODMI 9/8/05

'Rezsponsibla Manager (RM): John Ventosa Roesponslblo Individual (RI): John Skonieczny

• Ai.signed Team Members: Geoff Schwartz (Manager of Dry Cask Storage), Don Mayer (Director of Special Projects (and Health Physics)), Bill Axelson (Supervisor of Radiological Engineering), John Skonieczny (Civil/structural Engineer), Ron Lavera Radiological Engineer),

Steve Sandike (Chemist).

• Scope I Purpose of Plan: (attach additional sheets as needed) Monitor moisture and radiochemistry to determine if there could be an active Spent Fuel Pool liner leak and if it is degrading.

lIdentification of Consequences I Detalls on Solution Evaluation: (include action checklist and attach additional sheets If needed) The moisture in and near the upper crack, the concrete in the crack, and soil adjacent to the crack have been sampled and analyzed for radiocheniistry.

Lowt levels of Cs-134, Cs-37, Co-60, and Boron have been detected. The ratio of Cs-134 activity to Cs-137 indicates the activity is approximately.11 years old. Soil samples have been sent to an off-site laboratory to test for Tritium (H-3). and results are expected 9/14/05, The moisture is so slight that not enough has been collectible to perform radiochemistry analysis for H-3. Visual inspections are being conducted daily and no degradation in the moisture (i.e.,

increasing amount) has been detected. f e IYFi__(_41T4L1

-raStructural Enginegring-E has inspected the cracks and deemed them to be typical shrinkage cracks that form duringeg concrete curing, - -

• Specific Actions I Procedures used / Owners / Due Dates: (attach additional sheets as needed) (1)Daily visual inspections by Responsible Engineer J. Skonieczny. (2)Surveying and radiochemistry analysis of crack area at least weekly by Health Physics (R.Lavera). (3)Obtain H-3 sample radiochemistry results from off-site laboratory (B.Axelson). (4)Operations continue normal pool makeup and observe for any noticible change in frequency or amount.

XCornnensatorv Measures required: (attach additional sheets as needed) No compensator) measures are necessary at this time. There is no impact on any system that supports safe reactor plant power operation. Continue standard radiological controls in affected area.

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• SL. :I 'r Igj_I "J-1 . vi.L Ie- v IvJ Ww EN-OP-111 - OPERATIONAL DECISION-MAKING ISSUE (ODMI) PROCESS Attachment 9.2 - ODMI Implementation Action Plan (fill-in form)

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• Ccontingencies based on Consideration of Potential Events I Failures: (attach addition;al sheets as needed) None at this time.

iTrlgger Point(sl: (attach additional sheets as needed) (1) Degradation in moisture amount in and around cracks: (2) Cs-134 to Cs-137 ratio decreases approaching 2.0; H-3 radiachem stry anslysis results indicative of H-3 concentration in pool (i.e. indicative of active liner leak); (4)

Noticible change in pool makeup amount or frequency.

'Atort and Hold Criteria: (attach additional sheets as needed) None.

Actions If Trigger Point(s) exceeded: (attach additional sheets as needed) Inform Shift Manager, and Manager of Dry Cask Storage G. Schwartz (contact numbers in Outlook).

Manager of Dry Cask Storage inform Director of Engineering and Licensing Manager, Shif:

Manager inform Unit 2 operational management chain of command up to and including Site Vice President.

• ArIv New I Revised Procedures Needed: (be specific as to those procedures / rev Vs impacted) None.

S.ps / Staff Preparation Required (Simulator training fidellty, use of mockups, etc.):

None.

• Current Status of Plan: (add this as needed as activities updated for report out to CRG) See attached.

• References consulted: (attach as necessary) Reports and records from (1) Surry NPP Unit I Spent Fuel Pool liner leak; (2) IP2 1990-92 Spent Fuel Pool liner leak; (3) Test Report from 1979-1987 FP&L experiment to determine corrosion rates for concrete reinforcement subjected to boron environment.

'Ccmmunications Plan: (attach additional sheets as needed) Daily written status reports will be submitted to the management chain of command, NRC Resident's Office, and a summary to the Site Manager of Communications.

Monitoring Activities: (attach additional sheets as needed) See above.

'Conclusion / Surnmary: (attach additional sheets as needed) Source of moisture is not conclusively known at this time. Results of H-3 testing will be reviewed and further testing methodology including intrusive tests, if required, will be determined following that review,

• SUBMITTED:

Responsible Individual: J. Skonieczny /

signature date Responsible ManaQer: J. Ventosa /

signature date

EN-C)P-111 - OPERATIONAL DECISION-MAKING ISSUE (ODMI) PROCESS Attachment 9.2 - ODMI Implementation Action Plan (fill-in form)

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• APPROVALS: (Operations Mgt is mandatory to approve all ODMI plans):

signature date signature date TOTAL P. 04