ML17201M213
| ML17201M213 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 11/04/1988 |
| From: | Siegel B Office of Nuclear Reactor Regulation |
| To: | Bliss H COMMONWEALTH EDISON CO. |
| References | |
| GL-88-01, GL-88-1, NUDOCS 8811090030 | |
| Download: ML17201M213 (5) | |
Text
November 4, 1988 *
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Docket No.:
50-237 Mr. Henry E. Bl1ss Nuclear L1cens1ng Manager Commonwealth Ed1son Company Post Off1ce Box 767 Chicago, Ill1no1s 60690 Dear Mr. Bliss
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION PERTAINING TO CECO's RESPONSE TO GENERIC LETTER 88-01 FOR DRESDEN, UNIT 2 Based on a prelim1nary rev1ew of your submittal 1n response to Generic Letter 88-01 for Dresden Unit 2 the staff and its contractor, Viking Systems International have determ1ned that add1tional infonnat1on is needed to complete this rev1ew.
The additional 1nfonnation needed is 1dentif1ed in the enclosure.
It is requested that th1s infonnat1on be provided within 60 days of the date of this letter. If you have any quest1ons regarding this request or schedule please call me at (301) 492-3019 *
...,The reporting and recordkeepfng requ1 rements contained in this letter affect
>.fewer than ten respondents, therefore OMB clearance is not required under P.L.
~96~511 *.. *,
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Enclosure:
.As stated cc: see. next page DISTRIBUTION (Docket f11e:J NRC & Local PORs POI I I-2 r/f DMuller MVirgil fo LLuther BSiegel WKoo
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Byron Siegel, Project Manager Project Directorate III-2 Divis1on of Reactor Projects - III, IV, V, and Special Projects POIII-2 Plant file
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 Docket No.:
50-237 Mr. Henry E. Bliss Nuclear Licensing Manager Commonwealth Edison Company Post Office Box 767 Chicago, Illinois 60690 Dear Mr. Bliss November 4, 1988
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION PERTAINING TO CECO's RESPONSE TO GENERIC LETTER 88-01 FOR DRESDEN, UNIT 2 Based on a preliminary review of your submittal in response to Generic Letter 88-01 for Dresden Unit 2 the staff and its contractor, Viking Systems International have detennined that additional infonnation is needed to complete this review.
The additional infonnat1on needed is identified 1n the enclosure.
It is requested that this infonnation be provided within 60 days of the date of this letter. If you have any questions regarding this request or schedule please call me at {301) 492-3019.
The reporting and recordkeeping requirements contained in this letter affect fewer than ten respondents, therefore OMB clearance is not required under P.L.96-511.
Enclosure:
As stated cc: see next page tn ~
Project Manager Project Directorate III-2 Division of Reactor Projects
- III, IV, V, and Special Projects
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.Camnonwea 1th Edison Company cc:
.tltchael I. llfller. fsq *
- Sidley and Austtn
.r.;Gfte Ffnt latfonal Plaza Chfc190, Illtnofs *0603
- tcr. ~. £enf genburg Plant Superintendent Dresden IWclear Power Statton lura 1 loute I 1
- llorrfs. Jllinofs *0450
- 11. S. Nuclear Regulatory Colllnf sston Resident Inspectors Office Dresden Statton Rural Route fl tlorrfs, Illtnofs 60450 Chafrwn loard of Supervf so rs of
&rundy County Srundy County Courthouse llorrfs, Il lfnofs 60450.
Regional Admfnf strator Nuclear Regulatory Conrnfssfon, Region III 799 Roosevelt Road, Bldg. 14
&len Ellyn, Illinois 60137 tcr. Michael E. Parker, Chfef Dtvtsf on of Engf neerf ng Jllfnofs Department of Nuclear Safety 1035 Outer Part Drtve, 5th Floor Springfield, Jlltnofs 12704 Dresden luc1ear Power Statton ilnf ts 2 and 3
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IEQU?ST POJl ADDffiONAL IMFORKATION PERTAINING TO DRESDEN, OOT 2 Item 1. Position on NRC Staff Positions Ceneric Letter 88-01 states on page.3:
ENCLOSURE
'Pursuant to 10 CRF &0.54(f), Jou, as a BWR operating reactor or affirmation, Jour current plans relating to piping replacement, inspection, repair, and leakage detection. Your response should indicate whether JOU intend to follow the staff positions included in this letter, or propose alternatiYe aeasures. 1 The *taff positions outlined in Generic Letter 88-01 include positions on:
(1) Materials.
(2) Processes.
(3) Water Chemistry.
(4) Weld 0Yerla7.
(5) Partial leplacement. (6)
Stress Improvement of Cracked leldments.
(7) Clamping Devices.
(8) Crack Evaluation and lepair Criteria. (9) Inspection Method and Personnel.
(10) Inspection Schedules.
(11) Sample Expansion.
(12) Leak Detection. (13) leporting lequirements.
Information wa9 not supplied b7 Commonwealth Edison for Dresden, Unit.2 pertaining to items 7 or 8, the latter of which is of particular importance. Therefore, it is requested that Commonwealth Edison confirmlwhether "it accepts or proposes alternatiYes to HRC.poeition pertaining to crack evaluation and r.epair criteria.
Item 2. Inspection Plans Generic Letter 88-01 requests on p. 3:
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- An Inservice Inspection Program to be imple*ented at the next refueling outage for austenitic *tainless steel piping covered under the *cope of this letter that conf oras to the
- taff _positions on inspection *chedules, aethods and personnel, and *ample expansion iDcluded in this l~tter.*
Although a summary of the inspection plans for the September, 1G88 refueling outage was proYided, neither details (on a weld-by-weld basis) of that inspection nor long-range plans was provided. Please supply that information for the next several refueling outages.
In addition, in order to provide a basis for evaluation of that information, please supply *imilar details for previous inspections.
Item 3. Plans for Mitigating Actions Generic Letter 88-01 requests on p. 3:
'Your current plans regarding pipe replacement and/or other measures taken or to be taken to aitigate IGSCC and provide assurance of continued long-term piping integrity and reliability. 1 Please suppl7 the detailed plans for aitigating actions for Dresden 2 (note: the Commonwealth Edison *ubmittal provides only generalimed pla.ne). In addition, in order to provide a basis for an eYaluation, please also *uppl7 the following (on a weld-by-weld basis).
(1) descriptions of previous mitigating actions such as partial replacement, stress improvement, and weld overla7s.
(2) Justification/reasons for the classification* of ICSCC Category A, D, B, and 1 welds.
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