ML032230306

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Draft Information Input, Attachment 3 E-Mailed on June 25, 2003 (50-498 and 50-499) Re Response to RAI on RR-ENG-2-05
ML032230306
Person / Time
Site: South Texas  STP Nuclear Operating Company icon.png
Issue date: 06/25/2003
From: Thadani M
NRC/NRR/DLPM/LPD4
To: Harrison A
South Texas
Shared Package
ML032260096 List:
References
Download: ML032230306 (3)
v • d • e


Text

In 1 =~1- -_ -r - - -_- fi . i CGA1TLMF\UWJOO11 MP Pag I

I '1 MPWWOUUi .1IVIP Paoe 111 Mail Envelope Properties (3EFA09A3.1E5:15: 21310)

Subject:

BMI RELIEF REQUESR RR-ENG-35 Creation Date: 6/25/03 4:44PM From: Mohan Thadani Created By: MCT@nrc.gov Recipients Action Date & Time nrc.gov owfEpo.OWFN._DO Delivered 06/25/03 04:44PM RAG CC (Robert Gramm) Opened 06/26/03 06:29AM stpegs.com Transferred 06/25/03 04:44PM awharrson (INTERNET:awharrison@stpegs.co Post Office Delivered Route owf2_po.OWFNDO 06/25/03 04:44PM nrc.gov stpegs.com Files Size Date & Time MESSAGE 3718 06/25/03 04:44PM Options Auto Delete: No Expiration Date: None Notify Recipients: Yes Priority: Standard Reply Requested: No Return Notification: None Concealed

Subject:

No Security: Standard To Be Delivered: Immediate Status Tracking: Delivered & Opened

I I Mohan Thadani - Response to RAI on RR-ENG-2-35 Page 1 1 Paae ii~~~~

Thadani Resoonse on RR-ENG-2-35 t Mohan - to RAI From: 'John T Conly 'jtconly~stpegs.com>

To: <cajohnsoni 0aep.com>, <Andy.Ramirez~austinenergy.com>,

<Idblaylock6cps-satx.com>, <jwood @mattbran.com>, <agutterman morganlewis.com>,

<MCT@ nrc.gov>, 'Albert Mcintyre <acmcintyre.GWPONENG.GWDOMSTP @stpegs.com>, 'Anup Khosla <akkhosla.GWPO_NGEN.GWDOM_STP@ stpegs.com>, Anna Roberts'

<amroberts.GWPO_NASSUR.GWDOMSTP@stpegs.com>, *Albon Harrison'

<awharrison.GWPONASSUR.GWDOMSTPO stpegs.com>, 'David Cobb'

<dlcobb.GWPO_BSYSTMS.GWDOMSTP@stpegs.com>, Frank Mallen-

<fhmallen.GWPO_BSYSTMS.GWDOMSTP~stpegs.com>, 'Gary Parkey'

<glparkey.GWPONGEN.GWDOMSTP 0stpegs.com>, 'Ed Halpin'

<halpined.GWPO_NGEN.GWDOMSTP0stpegs.com>, 'Joe Loya' cjaloya.GWPO-NENG.GWDOMSTPistpegs.com>, *J Craig Younger" gccyounger.GWPO-NENG.GWDOMSTP@stpegs.com>, 'John Lovell'

<jrlovell.GWPO NGEN.GWDOMSTP@stpegs.com>, 'James Morris' cjrmorris.GWPONASSUR.GWDOMSTP@stpegs.com>, James Sheppard'

'jsheppard.GWPO BSYSTMS.GWDOMSTP@stpegs.com>, 'John T Conly'

<jtconly.GWPONASSUR.GWDOMSTP@stpegs.com>, Kathleen Work'

<kawork.GWPO_NASSUR.GWDOMSTP@stpegs.com>, 'Kenneth Taplett' ckjtaplett.GWPONASSUR.GWDOMSTP@stpegs.com>, 'Lewis Allen'

<Idallen.GWPO_NENG.GWDOMSTP@stpegs.com>, 'Mark McBumett'

<mamcbumett.GWPONASSUR.GWDOMSTP@stpegs.com>, 'Michael Meier"

<mdmeier.GW PO_PLTSVCS.GWDOMSTP 0 stpegs.com>, 'Marilyn Johnson'

<mkjohnson.GWPO_NASSUR.GWDOM-STP@stpegs.com>, 'Michael Lashley,

<mslashley.GWPO_NENG.GWDOMSTP@stpegs.com>, 'Philip Walker' cplwalker.GWPO_NASSUR.GWDOMSTP@stpegs.com>, Robyn Savage'

<rdsavage.GWPOCNASSUR.GWDOMSTPtstpegs.com>, Randall Beverly' rlbeverly.GWPONENG.GWDOMSTP@stpegs.com>, Scott Head"

'smhead.GWPO_NASSUR.GWDOM-STP@stpegs.com>, Thomas Jordan' tjjordan.GWPONENG.GWDOMSTP @stpegs.com>, 'Ulhas Patil'

<uspatil.GWPO_NENG.GWDOMSTP@stpegs.com>, William Mookhoek'

<wemookhoek.GWPO_NASSUR.GWDOMSTP 0stpegs.com>, 'William Bealefield, Jr.'

<wrbealefield.GWPOBSYSTMS.GWDOMSTP@stpegs.com>, <richard-balcom @txgenco.com>

Date: 6/30/03 9:34AM

Subject:

Response to RAI on RR-ENG-2-35 The attached is our response to an NRC request for additional information regarding the STPNOC relief request on taking boat samples as part of the BMI effort.

I Mohan Thadani - BVI RELIEF REQUESR RR-ENG-35 Page I Mohan Thadani BMI RELIEF REQUESR RR-ENG-35 l

- Paae 1 I From: Mohan Thadani To: INTERNET:awharrison @stpegs.com Date: 6125/03 4:44PM

Subject:

BMI RELIEF REQUESR RR-ENG-35 Wayne:

Listed below are questions that the NRC staff would like to have answered, in order to complete the review of STPNOC's request. A prompt response to these questions will expidite the NRC staff's completion of the review.

Thanks.

Mohan RAI for STP, EDM UNDERWATER, (RR-ENG-2-35)

1. ASME Section Xl has recognized that underwater welding Is a specialized process that requires specialized testing and essential variables. EDM is a thermal metal removal process that leaves a heat affected zone similar to a weld heat affected zone. Since the EDM that Is proposed by this relief request Is being performed underwater, are the thermal metal removal process qualification tests going to be performed underwater to accurately simulate the production conditions on the test specimens?
2. IWA-4461.4(c) and IWA-4461.4(e) require the licensee to establish acceptance criteria for surface roughness and corrosion testing of the specimens, provide these acceptance criteria.
3. If the qualification testing of IWA-4461.4 reveal that any micro-fissures or oxide layer will be left after the EDM, what type of analysis will be performed to demonstrate that these will not propagate over the life of the RPV?
4. Will any NDE be done on the final cut surface?
5. Will any Examination be done on this item on an ongoing basis? (Every outage or every other outage, etc.)
6. How will the licensee comply with IWA-4422.2.1? (NDE after 'Defect Removal Without Welding or Brazing."
7. What materials are the Items to be thermally cut made of? (ASME SA Number, type, and grade; heat treatment condition). Will the EDM cut include the penetration tube; the original weld butter, the final J-groove weld; the RPV alloy steel material; the stainless steel cladding?
8. What effect will the elimination of mechanical metal removal processes have on the susceptibility of Alloy 600 materials and their associated welds to PWSCC?
9. For what period of time does the licensee request this relief?

CC: Robert Gramm

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