ML20118B283
| ML20118B283 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 09/22/1992 |
| From: | Sieber J DUQUESNE LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| REF-GTECI-A-46, REF-GTECI-SC, TASK-A-46, TASK-OR GL-87-02, GL-87-2, TAC-M69428, NUDOCS 9210020046 | |
| Download: ML20118B283 (3) | |
Text
-_
Beasr 'a y Power Stat,or'
%ppmgport PA 15077-0004 (412) 3GtJ5$
sosN o s4 DER September 22, 1992 WCe Pres cent - Nudeae Group U.
S. Nuclear Regulatory Commission Attn:
Document Control Desk Washington, DC 20555
Subject:
Ucaver Valley Power Station, Unit No. 1 Docket No. 50-334, License No. DPR-66 Recpcnce to Dopplement 1 to Generic Lejter 87-02 on SQuG Resolution of USI A-46.
(TAC m9428)
(
I.
INTRODUCTION On February 19,
- 1987, the NRC issued Generic Letter 87-02,
';Ver i f i ca tion of Seismic Adequacy of Mechanical and Electrical Equipment in Operating
- Reactors, Unresolved Safety Issue (USI)
A-46."
This Generic Letter encouraged utilities to participate in a generic program to resolve the coismic verification issues associated with USI A-46.
As a result, the Seismic Qualification Utility Group
("SQUG")
developed the
" Generic Implementation Procedure (GIP) for S61smic Verification of Nuclear Plant Equipment."
On May 22, 1992, the NRC Staff issued Generic Letter 87-02, Supplement 1, which constituted the NRC Staff's review of the GIo and which included Supplemental Safety Evaluation Report Number ? (".CER-2") on the GIP, Revision 2,
corrected on February 14, 1992.
The letter to SQUG enclosing SSER-2 requests that SQUG member utilities provide to the
- NRC, within 120 days, a schedule for implementing the GIP.
By letter dated August 21, 1992, to James G. Partlow, NRR-NRC, SQUG clarified that the 120 days would expire on September 21, 1992.
This letter respor ds to the staf f's request.
II.
COMMITMENT TO G1P As a
mLmber of SQUG, Duquesne Light Company (DLC) commits to use the SQUG methodology as documented in the GIP, where "G1P" refers to GIP Revision 2,
corrected February 14,
- 1992, to resolve USI A-46 at Beaver Valley Pohor Station Unit No.
1 (BVPS-1).
The GIP, as evaluated by the
- Staff, permits licensees to deviate from the SQUG-commitments em'rodied in the Commitment sections, provided the Staff is notified of substantial deviations prior to implementation.
DLC recognizes that the Staff's positi on in SSER-2 "is that if licensees use other methods that deviate trom the criteria and procedures as described in SQUG commitments and in the implementation guidance of the GIP, Rev.
2, without prior NRC staff approval, the method may not be acceptabic to the staff and, therefore, may result in a deviation from the provisions of Generic Letter 87-02...."
bbO e
9210020046 920922 PDR ADOCK 05000334 P
//00/
ato
deaver Valley Power Swation, Unit No. I 1
r Docket Vo. 50-334, License No. DPR-bo Recoonso to Supplement 1 to Generic Letter 87-02 l
on SQUG Resolution of USI A-46 Page 2 Specifically, DLC commits to the SQUG commitments s t forth in the GIP la their entirety, including the clarifications, interpretations, I
and exceptions identified in SSER-2 as clarified by the August 21, 1992, SQUG letter responding to SSER-2.
DLC generally will be guided by the remaining (non-commitment) sections of the
- GIP, i.e.,
GIP implementation
- guidance, which comprises suggested methods for implementing the applicable commitment.
DLC will notify the NRC as soon as practicable, but no later than the final USl A-46 summary report, of significant or programmatic deviations from the guidance portions of the GIP, if any.
Justifications for such deviations, as well as for other minor deviations, will be retained on site.
III.
IN-STRUCTURE RESPONSE SPECTRA for dqfining seismic demand, DLC will use the options provided in the GIP for median-centered and conservative design in-structure response
- spectra, as appropriate, depending on the building, the location of equipment in the building, and equipment characteristics.
IV.
SCHEDULE 3
Given the magnitude of the effort required to achieve resolution of UST A-46, final implementation must be carefully integrated with outage schedules and the seismic IPEEE response.
Considering the workload set forth by the criteria of the GIP, a Seismic ".:aluation Report summarizing the result of the A-46 program at BVPS-1 will_be submitted to the NRC by May 21, 1995.
However, the A-46 program completion s c h e d t i.e may be affected by coordination with the seismic IPEEE
- response, the scope and schedule for completing the necessary SQUG training and by the availability of industry resources which may be limited because of the large number of licensees implementing this program.
Shculd you have any questione regarding this submittal, please contact Ed Coholich at (412) 393-52S.
Sincerely, Si ec:
Mr.
L.
W.
Rossbach, Sr. Resident Ins >ector Mr.
T.
T.
Martin, NRC Region I Administrator Mr. A.
W.
De Agazio, Project Manager Mr.
M.
L. Bowling (VEPCO) 1 1
-,- -..,. -.. - -.. -. -..... - - - -. ~. - -. -. -,
1 Deaver Valley Ituor Station, Unit !b.1 lbchet ib. 50-334, License Ib. DPR-66
. Ibsponse to Si3planent 1 to Cen. Ltr. 87-02 on SQL.C Ibnolution of USI A-46 Page'3 COMMONWEALTH OF PENNSYLVANIA)
)
SSt COUNTY OF BEAVER
)
F eyY'/7 //
dayof9=e'M!0N!M!/
On this
- 1992, before me, [
- I/ $7,81 d / UI'
, a Notary Public in and for said z
commonwealth' and County, personally appeared J.
D.
Sieber, who being duly sworn, deposed, and said that (1) he in Vice President - Nuclear of Duquesne Light, (2) he is duly authorized to execute and file the foregoing Submittal on behalf of said Company, and (3) the statements set forth in the submittal are true and correct to the best of his knowledge, infor.ation and belief, i
{
- p' m
(
A'ii<a sid'carr~
/
I NrtvWSed.
I SNA M FawoJAtwy Fitic SMwruvt (kFO,Ibwer I
Mv' Cmt% son Espkes Cr,t,% 1 Wru. f **M*rwn& ton of Nwes
-