ML060440063

Handouts for Meeting with Nuclear Management Co., to Discuss Removing Trisodium Phosphate from the Containment at Palisades

ML060440063
Person / Time
Site:	Palisades
Issue date:	02/02/2006
From:	Nuclear Management Co
To:	Office of Nuclear Reactor Regulation
References
Download: ML060440063 (9)

Text

SM fo,,,.,.,;++^td to NMC AfioCI^^#EXe-n~

UU1111I1IILLWU LU. IVUL#WOCI L.AUC7ICI~IIL Proposed License Amendment Palisades Nuclear Plant February 2, 2006

T =}

Proposed License Amendment Agenda 0 Purpose 0

Objectives Proposed Amendment a

Discussion k

Summary I I , 1t 1 I

S Conclusion I 1-, 1 leX NMIW

/I 1

W..,\

rig

Proposed License Amendment Purpose

• Discuss proposed license amendment request to remove TSP to further reduce the risk associated with the uncertainty of GSI-191 chemical effects until final resolution by December 2007 Objective

• Confirm approach and scope of proposed license amendment I -1 I

"I I.

NMC

&1W4WA)h4 2

,fI-I I/

Proposed License Amendment Overview of Discussion

• Design and Licensing Bases

• Impact on Radiological Design Basis Analyses

• Current licensing basis is TID-14844 methodology Technical Specification Chanae IN I -

I3 NMC COO~_ A~W ,

3 1

Proposed License Amendment Design and Licensing Bases Considerations

• Post-accident sump pH control

• Retention of radioiodine in sump water/leakage

• Effectiveness of containment sprays and long-term retention of radioiodine in sump water is dependent on pH

• Corrosion rates

• Rates in non-neutral pH solutions are increased

• Hydrogen generation rates

• Hydrogen release not risk-significant

• Equipment Environmental Qualification  ;, I components

• On-going evaluations "I \\

NMI CNIVIae e'

I/

4 OF

Proposed License Amendment Impact on Radiological Analyses

• Retention of radioiodine in sump water

• Spray removal and retention would not be credited due to loss of pH control

• Preliminary analyses indicate

• 10 CFR 100 limits will be met Predicted dose increases but remain within acceptable limits

• General Design Criteria (GDC) 19 limits will be met

• Predicted dose increases but remain within "I,. I-acceptable limits with KI and use of Tracer Gas I--

test results C4ftO"to*%

NoM 5

Proposed License Amendment Schedule 0 Timeline

• Amendment submittal planned by March 31, 2006

• TSP to be removed after approval I x, NIwq _V~AM 6

'roposed License Amendment Summary k.

IA NMC 7

a *4 I[Proposed License Amendment Conclusion

/t

/I NMi C4%"www I

8 /

.- /