ML20045H682
| ML20045H682 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 07/14/1993 |
| From: | Beach A NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Cottle W HOUSTON LIGHTING & POWER CO. |
| References | |
| NUDOCS 9307210119 | |
| Download: ML20045H682 (4) | |
See also: IR 05000498/1992036
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UNITEL STATES
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NUCLEAR REGULATORY COMMISSION
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REGION IV
611 RYAN PLAZA DRIVE, SUITE 400
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Dockets:
50-498
50-499
Licenses: NPF-76
NPF-80
Houston Lighting & Power Company
ATTN: William T. Cottle, Group
Vice President, Nuclear
P.O. Box 1700
Houston, Texas
77251
SUBJECT:
ACCEPTANCE OF REVISED COMMITMENT DATE TO NOTICE OF VIOLATION
(498/9236-06; 499/9236-06)
Thank you for your letter of June 25, 1993, which requests a revision to
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the commitment date to complete corrective actions associated with
Violation 498/9236-06; 499/9236-06.
We have reviewed your request and find it
acceptable.
We will review the implementation of your corrective actions on
this issue during a future inspection to determine whether full compliance has-
been achieved and will be maintainea.
Sincerely,
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A. Bill Be<th, Director
Division of Reactor Projects
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Houston Lighting & Power Company
ATTN: James J. Sheppard, General Manager
Nuclear Licensing
P.O. Box 289
Wadsworth, Texas 77483
City of Austin
Electric Utility Department
ATTN:
J. C. Lanier/M. B. Lee
721 Barton Springs Road
9307210119 930714'
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Houston. Lighting &-Power Company
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City Public Service Board-
ATTN:
K. J. Fiedler/M. T. Hardt
P.O. Box 1771
San Antonio,gTexas 78296
Newman & Holtzinger, P. C.
ATTN: Jack R. Newman, Esq.
1615 L Street, NW
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Washington, D.C.
20036
Central Power and Light Company.
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ATTN:
D. E. Ward /T. M.-Puckett
P.O. Box 2121
Corpus Christi, Texas 78403
Records Center
700 Galleria Parkway
Atlanta, Georgia 30339-5957
Mr. Joseph M. Hendrie
50 Bellport Lane
Bellport, New York 11713
Bureau of Radiation Control
State of Texas
1101 West 49th Street
Judge, Matagorda County
Matagorda County Courthouse
1700 Seventh Street
Bay City, Texas 77414
Licensing Representative
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Houston Lighting & Power Company
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Suite 610
Three Metro Center
Bethesda, Maryland 20814
Houston Lighting & Power Company
ATTN:
Rufus S. Scott, Associate
General Counsel
P.O. Box 61867
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Houston, Texas 77208
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Project Engineer (DRP/A)
R. Bachmann, OGC, MS: 15-B-18
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June 25, 1993
ST-HL-AE-4488
File No.:
G02.04
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U.
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Nuclear Regulatory Commission
Attention:
Document Control Desk
20555
South Texas Project
Units 1 and 2
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Docket Nos. STN 50-498; STN 50-499
Supplemental Response to Notice of Violation 9236-06
Recardina Failure to Recuest Relief from ASME Reauirements
Reference:
1) Correspondence from
S.
L.
Rosen, HL&P, to NRC,
dated April
2,
1993, " Reply to Notice of Violation
9236-06, Regarding Failure to Request Relief from
ASME Requirements" (ST-HL-AE-4402)
2) Correspondence from
S.
L.
Rosen, HL&P, to NRC,
dated May
11,
1993,
" Supplemental
Response
to
Notice of Violation 9236-06, Regarding Failure to
Request Relief from AEME Requirements
(ST-HL-AE-4436)
Houston Lighting & Power Company (HL&P) provided the initial
response
to
Notice
of
Violation
9236-06
via
Reference
1.
Reference 2 provided the results of the analysis of the methodology
required to meet the ASME Section XI accuracy and the date of
compliance with ASME Section XI for the Essential Cooling Water
(EW)
system along with the date of full compliance for this
violation.
HL&P committed in Reference 2 to completion of the precision
calibration
for
the
existing
EW
instrumentation
prior
to
June 30, 1993.
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Project Manager on P,chalf of the Participants in the South Texas Project
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Houston Lighting & Power Company
South Texas Project Electric Generating Station
ST-HL-AE-4488
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File No.: G02.04
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Page 2
The establishment of
this commitment date
assumed that
calibration data could be taken by manipulating EW - system flow
without removing the EW system from service.
However, during
initial data ac,quisition it was determined that the EW system must
.
be removed from service to gather the data and perform the
calibrations.
In order to avoid multiple short duration train
outages,
the required data will be gathered during upcoming
scheduled train outages.
The precision calibration, originally
scheduled for completion by June 30, 1993, Will be completed prior
to startup of the affected unit from the current outage.
HL&P will
be in compliance with the requirements of ASME Section XI upon
completion of the precision calibrations.
All changes to this Notice of Violation are denoted by
revision bars.
If you have any questions, please contact Mr.
C.A.
Ayala at
(512) 972-8628 or me at (512) 972-7138,
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S.
Rosen
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Vice President,
Nuclear Engineering
GLM/pa
Attachment:
Supplemental Response' to Notice of Violation 9236-06
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Houston Lighting & Power Company
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South Texas Project Electric Generating Station
File fio.: G02.04
Page 3.
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Regional Administrator, Region IV
Rufus S.
Scott
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Nuclear Regulatory Commission
' Associate General Counsel
611 Ryan Plaza Drive, Suite 400
Houston Lighting
&' Power Company
Arlington, TX
76011
P.
O.--Box 61867
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Houston, TX
77208
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Project Manager
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U.S. !!uclear Regulatory Commission
Institute of Nuclear Power ,
20555
Operati'ons.- Records Center
1100 circle 75 Parkway, #1500.
J.
I. Tapia
Atlanta, GA
30339-3064
Senior Resident Inspector
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S.
Iluclear Regulatory
Dr. Joseph M. Hendrie
Commission
50 Bellport Lane
P.
O.
Box 910
Bellport, NY
11713
Bay City, TX
77414
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D.
K.
Lacker
J.
R.
Newman, Esquire
Bureau of Radiation Control
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Newman & Holtzinger,
P.C.,
STE 1000
Texas Department of Health
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1615 L Street,
N.W.
1100 West 49th Street
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8756-3189
20036
Austin, TX
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D.
E.. Ward /T.
M.
Puckett
U.S.
Nuclear Regulatory Comm.-
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Central Power and Light Company
Attn:
Document Control _ Desk
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P.
O.
Box 2121
D.C.
20555
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Corpus Christi, TX
78403
J.
C. Lanier/M.
D.
Lee
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City of Austin
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Electric Utility Department
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721 Barton Springs Road
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Austin, TX
78704
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K.
J. Fiedler/M. T.
Hardt
City Public Service
P.
O.
Box 1771
San Antonio, TX
78296
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Attachment 1
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ST-HL-AE-4488
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Page 1 of 3
1
1.
Statement of Violation:
failure to Request Relief ___from ASME Code Requirements
10 CFR 50.SSa requires.that ASME' Code Class 3 pumps and valves
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whose function is required'for safety undergo IST which
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complies.with the. requirements of ASME Section XI tc verify
operational readinessi unless relief has been granted.
Article IWP-4110 of ASME Section XI, requires that instruments
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used in IST be of a quality such that instrument accuracy is.
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within 2 percent of full scale.
.
Contrary to the above, the essential cooling water flow
element installation for the Units 1 and 2 component cooling
water heat exchanger had an error of 7 percent of full scale
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and no relief from the provisions of Section.XI was granted.
This is a Severity Level IV violation.
(Supplement I)
(498;499/9236-06)
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II.
Houston Lichtinc & Power Position:
HL&P concurs that the-cited violation occurred.
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III.
Reason for Violation:
The cause of the event was inadequate management controls to
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ensure that request for relief from the requirements of'ASME
Section XI was submitted in a timely manner.
IV.
Corrective Act. ions:
1. An investigation was performed to determine if instrument
inaccuracies similar to those discovered in the Essential'
Cooling Watel (EW) System existed in other systems.
Similar instrument inaccuracies were discovered in the
Essential Chilled Water (CH) and Safety Injection (SI)
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systems.
2.
An evaluation of the data collected during previous ASME.
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Section XI pump testing was conducted and concluded that
the EW, CH, and SI instrumentation provided results
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capable of detecting pump degradation and therefore met
the intentlof ASME Section XI.
System operability for EW,
CH, and SI was reviewed and was determined to not be a
concern due to sufficient margin existing between the
design and the required system flow rates.
IR\\93+168.001
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Attachment 1
ST-HL-AE-4488
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Page 2 of 3
IV.
Corrective Actions:
(con't)
3.
For the CH and SI systems, temporary flow measurement
devices capable of achieving the required'ASME.Section XI
accuracy will be used until the-existing instrumentation.
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is precision calibrated to resolve the inaccuracies.
Use
of these devices requires revision to the reference value
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procedures, inservice test procedures, and controlctron
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calibration specification sheets for tho'CH.and SI
systems.
These revisions have been completed.
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4.
For the EW system, the existing instrumentation.will be
precision calibrated to resolve the inaccuracies.
This-
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precision calibration will be completed prior to startup
of the affected unit from the current outage.
HL&P will
be in compliance with the requirements of ASME Section XI
upon completion of the precision calibration.
5.
Procedures OPGP03-ZE-0021, " Inservice Testing program for
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Valves", and OPGP03-ZE-0022, " Inservice Testing Program
for Pumps"
will be revised to require that relief- '
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-requests be submitted to the NRC within six months.of-
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discovery of the need for the requests.. This revision
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will also require that compensatory actions be taken,
required, until the relief request is granted by'the NRC.
These procedures will be revised'by September 23, 1993.
4
6. To prevent recurrence, procedure IP-3.04Q, " Inservice
Inspection Program", was revised to require that the
responsible engineer ensure that the instrumentation used
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to collect data for inservice testing is accurate to
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within the tolerances specified in ASME Section XI prior
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to inclusion of the' instrumentation in the testing plan.
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In addition, procedure OpGP03-ZE-0031, " Design Change
Implementation", was revised to require consideration of
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programmatic impact to the ASME Section XI Pump and Valve
Testing Program in the event of a design change to the
existing configuration.
Also, the +/- 2% instrument
accuracy was specifically identified as a potential impact
to Section'XI equipment on the Design Change checklist.
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Attachment 1
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ST-HL-AE-4488
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Page 3 of 3
V.
Actions Taken to Address Failure to Meet Commitment:
Upon discovery of the surveillance performance with an
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unrevised procedure, a Station Problem Report was issued and-
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revision of the applicable procedures and controlotron
calibration specification sheet was subsequently completed.
A.
training bulletin was distributed to the appropriate STP
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personnel concerning this event, emphasizing the need for
increased attention to detail with regards to corrective
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actions associated with NRC commitments.
The personnel
involved in this failure to meet an NRC commitment were_
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counseled on the.importance of attention to detail with
regards to corrective actions associated with NRC commitments.
VI.
Date of Full Compliance:
The CH and SI systems are in compiiance with the requirements
of ASME Section XI.
HL&P will be in full compliance prior to startup of Units 1
and 2 from the current outage.
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