ML20059K932
| ML20059K932 | |
| Person / Time | |
|---|---|
| Site: | South Texas  |
| Issue date: | 09/18/1990 |
| From: | Collins S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Hall D HOUSTON LIGHTING & POWER CO. |
| Shared Package | |
| ML20059K934 | List: |
| References | |
| NUDOCS 9009250264 | |
| Download: ML20059K932 (4) | |
See also: IR 05000498/1990028
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In Reply Refer To:
Deckets: 50-498/90-28
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50-499/90-28
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~ Houston 1.ighting & Power Company
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. ATTN:
Donald P. Hall, Group
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Vice President,' Nuclear
P.O. Box 1700
Houston, Texas 77251
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. Gentlemen:
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This refers to the special inspection conducted by Messrs. J. I. Tapia and
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J..E. Whittemore of this office during the period July 30 through August 8,.
1990, of activities authorized by NRC Operating Licenses NPF-76 and NPF-80 for
the South Texas Project. Units 1 and 2, and to the discussion of our findings.
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with Mr. W. H. Kinsey and other members of your staff at the conclusion of the
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inspection..
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The area examined during the inspection included onsite followup of two events.
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The inspection consisted of selective examination of procedures and
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representative records, interviews with personnel, and observations ly the
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inspectors. Theiinspection findings are documented in'the enclosed inspection
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Following an' enforcement conference on August 29, 1990, we concluded +. hat, during
this inspection, certain of your activities were in violation of NRC
a.
requirements. Consequently, you are required to respond to these vio9ations.
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in writing, in.accordance with the provisions of Section 2.201 of the NRC's
" Rules of Practice," Part 2. Title 13. Code of Federal Regulations. Your
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response should be based on the specifics contained in the Notice of Violation
enclosed with~this: letter.
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.ThkNRCstaffconsiders.thetwo'violationsaddressedintheenclosedreportas
, significant. 'One violation, described in paragraph 2 of the report, relates to
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a valve. lineup error that was not identified by required independent checks and
resulted in an inoperable train of the auxiliary feedwater system. This lineup
error resulted in an actual loss of auxiliary feedwater to a steam generator
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when required. The second_ violation, also described in paragraph 2., involved
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the failure to ensure that a mixed bed demineralizer contained the proper boron
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content which resulted in.an inadvertant boron dilution event during full power
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operation. This second event is of particular concern because the potential
for an inadvertant reactivity addition was not mitigated through administrative
contmis for placement'of the _demineralizer in service.
Based on the
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inspe: tion results and information provided in the enforcement conference, we
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. conc 1Lded that operator actions to control reactor power and reactor coolant
system temperatures were appropriate.
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Houston Lighting & Power Company
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In your response to the first violation you should include a description of
actions taken to ensure that all personnel are conducting required independent
verifications in an appropriate manner.
In your response to the second
violation you should include a description of action taken to ensure that all
planned or potential reactivity additions are adequately anticipated and
controlled.
The response requested by this letter is not subject to the clearance procedures
of the Office of Management and Budget as required by the Paperwork Reduction
Act of 1980. PL 96-511.
In accordance with 10 CFR 2.790 of the NRC's " Rules of Practice " a copy of
this letter and its enclosure will be placed in the NRC Public Document Room.
Sincerely.
Original Signed 11y
A .2 h t- C A n .* b ed""
Samuel J. Collins, Director
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Division of Reactor Projects
Enclosures:
1.
Appendix A.- Notice of Violation
2.
Appendix B - NRC Inspection Report
50-498/90-28
50-499/90-28
cc:
Houston Lighting >&LPower Company
ATTN:
M. A. McBurnett, Manager
Operations Support Licensing
P.O. Box 289
Wadsworth, Texas 77483
City of Austin Electric Utility
ATTN:
J. C. Lanier, Director of
Generation
721 Barton Springs Road
City Public Service Board
ATTN:
R. J. Costello/M. T. Hardt
P.O. Box 1771
San Antonio, Texas 78296
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Newman & Holtringer, P. C.
ATTN: Jack R. Newman, Esq.
1615 L Street, NW
-Washington, D.C.
20036
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Houston Lighting & Power Company
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Central Power and Light Company
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ATTN:
R. P. Verret/D. E. Ward
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P.O. Box 2121
Corpus Christi, Texas 78403-
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Records Center
1100 Circle 75 Parkway
Atlanta, Georgia 30339-3064
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Mr.: Joseph M. Hendrie
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50 Bellport Lane-
Bellport, New York 11713
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Bureau of Radiation Control
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State of Texas
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1101 West 49th Street
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Judge, Matagorda County
Matagorde County Courthouse
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1700 Seventh Street
Bay City Texas 77414
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Licensing ~ Representative
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Houston Lighting & Power Company
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Suite'610.
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'Three Metro Center
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Bethesda, Maryland 20814
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Houston Lighting & Power Company
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ATTN:
Rufus S. Scott, Associate
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General Counsel
P.O. Box 61867
-Houston, Texas 77208'
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U.S. Nuclear Regulatory Commission
ATTN:
Resident Inspector
P.O. Box 910'
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Bay City. Texas 77414
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U.S.. Nuclear Regulatory Commission
ATTN:
Regional Administrator, Region IV
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611. Ryan Plaza Drive, Suite 1000
?ctlington, Texas 76011
bectoDMB(IE01)
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Houston Lighting & Power Company
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- R. - D. Martin
- Resident Inspector
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Lisa Shea RM/ALF
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R. Bachmann - 0GC
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- RSTS Operator
- Project Engineer (DRP/D)
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J. Whittenore, DRS
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