ML20042G599
| ML20042G599 | |
| Person / Time | |
|---|---|
| Site: | Wolf Creek  |
| Issue date: | 05/09/1990 |
| From: | Collins S NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV) |
| To: | Withers B WOLF CREEK NUCLEAR OPERATING CORP. |
| References | |
| NUDOCS 9005150137 | |
| Download: ML20042G599 (3) | |
See also: IR 05000482/1989030
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91990
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In Reply Refer To:
Docket: STN 50-482/89-30
Wolf Creek Nuclear Operating Corporation
ATTN: Bart D. Withers
President and Chief Executive Officer ~-
P,0. Box 411
Burlington, Kansas 66839
Gentlemen:
Thank you for your letters dated February 7 and April 18, 1990, in
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response-to our letter and inspection report dated January 3,1990, and our
request for additional information dated March 11, 1990. We have reviewed your.
replies and . find them responsive to the concerns raised in our. inspection
report. We will review the implementation of your corrective actior.s during a-
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future inspection.
Sincerely,
Original Signsd 37
Samuel J. Collins, Director
Division of Reactor Projects-
cc:
Wolf Creek Nuclear Operating Corp.
ATTN: Gary Boyer, Plant Manager
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P.O. Box 411
Burlington, Kansas 66839
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Shaw, Pittman, Potts & Trowbridge
ATTN: Jay Silberg, Esq.
1800 M Street, NW
-Washington, D.C.
20036
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Public Service Commission
ATTN: Chris R. Rogers, P.E.
Manager, Electric Department
P.O. Box 360
' Jefferson City, Missouri
65102
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DBSpitzberg/ch
DAPowers
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SJCollins
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Wolf Creek Nuclear .
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Operating Corporation
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U.S. Nuclear Regulatory Commission.
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ATTN:
Regional Administrator, Region III
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799 Roosevelt Road
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Glen Ellyn . Illinois 60137.
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Wolf Creek Nuclear' Operating Corp.
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ATTN: ' Otto Maynard, Manager
Regulatory Services-
P.O. Box 411
- Burlington, Kansas 66839-
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Kansas Corporation' Commission
ATTN:. Robert Elliot, Chief Engineer
Utilities Division
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4th. Floor - State Office Building
Topeka,. Kansas. 66612-1571
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Office of the Governor
State of Kansas
Topeka, Kansas 66612
Attorney General
1st Floor - The Statehouse
Topeka, Kansas. 66612
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Chairman, Coffey County Commission
Coffey County Courthouse
,
Burlington, Kansas 66839
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Kansas Department of Health
and Environment
Bureau of Air Quality & Radiation
Control
ATTN: Gerald Allen, Public
Health Physicist
Division of Environment
Forbes Field Building 321
Topeka, Kansas 66620
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U.S. Nuclear Regulatory Commission
ATTN:
Senior Resident Inspector
P.O. Box 311-
Burlington, Kansas 66839
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Wolf Creek Nuclear
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Operating Corporation
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U.S. Nuclear' Regulatory Commission
ATTN:; Regional Administrator, Region IV
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611 Ryan Plaza Drive, Suite 1000
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Arlington, Texas 76011
Program Manager
- FEMA Region 7
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911 Walnut Street, Room 200
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bec to DMB (IE35)
bec with licensee's letteri
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Myron Karman . ELD, MNBB (1)
Resident Inspector
Section Chief, DRP/D
ORP
SEPS File
RIV File
MIS System
RSTS Operator
Lisa Shea, RM/ALF
Inspector .
-Section-Chief
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B. Beach
Project Engineer, DRP/D
B.DeFayette, RIII
Callaway, RIII
D. Pickett, NRR Project Manager
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W$LF CREEK
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NUCLEAR OPERATING CORPORATION
Bert D. Mthere
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February 7, 1990
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WW 90-0021
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U. S. Nuclear Regulatory Commission-
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ATTN: Document Control Desk
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Letter'ated January 3, 1990 from S. J. Collins, NRC,
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to B. D. Withers WCN00
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Docket No.
50-482 ' Response to NRC Inspection Report
482/8930
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Gentlemen
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Attached is Wolf Creek Nuclear Operating Corporation's (WCN00)
response to
exercise weaknesses 482/8930-01 and 8930-02 and open item 482/89-03.
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Exercise weakness 482/8930-01 involved the failure of the- emergency
operations facility staff to be aware of significant reactor conditions.
Exercise weakness 482/8930-02 involved inadequacies associated with the
exercise scenario.
Open item 482/8930-03. involved the reliability of
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telephone communications during an emergency.-
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If you have any questions concerning this matter, please contact me or Mr.
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H. K. Chernoff of my staff.
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Very truly yours.
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Bart D. Withers
President and
Chief Executive Officer
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Attachments
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cc:
E. J. Holler (NRC), w/a
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D. Martin (NRC), w/a
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D. V. Pickett (NRC), w/a
M. E. Skov (NRC), w/a
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P.O. Bou 411/ Burtngton, KS 66839 / Phone: (316) 364-8831
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An Equal OpportunNy EngWoyer WFMCNET
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_ Attachment to WM 90 0021-
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Page 1'of 3
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Exercise Weakness (482/8930-01): Ihe failure of the EOF staff to be aware.
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of sienificant reactor conditions
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Resoonse
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The Emergency Operations Facility (20F) staff was unaware of significant
reactor conditions due to incomplete plamt information from the. Control Room
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Simulator.
Procedures EPP- 01-1.1- 'WCOS Organisation' and EPP 01-1.2
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' Emergency- Operations Facility Emergency
Organisation"
requires'
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Operations Status Board Recorders.-(OSRs) in the Technical Support Center
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(TSC) and EOF to update the.0perations Status Boards- from ?the Emergency
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Response Facility. Information System (ERFIS)..
If 'the' ERFIS is not-
functioning, the preferred method of transmitting plant information is by
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the OperationsLAssessment Coordinator (OAC) via telephone to the OSRs.
For-
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this exercise,'the scenario directed that the ERFIS be out of service.:
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01-11.2~ ' Status Boards"? requires the OAC provide updated plant information
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to the OSRs at intervals of no more than 15 minutes._
The plant information:
is then posted on the Operations Status Boards in the TSC and EOF.
During-
the exercise, various critical plant. parameters were not' relayed to the OSRs
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byl the OAC.
This failure to provide these parameters-resulted in the EOF
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staff not recognizing that ' the . core became uncovered _ and the hydrogen
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levels were increasing.-
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WCNOC will review the communications-flow process between facilities and the
locations of the Operations Status Boards >to identify needed ' improvements.
As part of Emergency Plan Training; WCNOC will~ emphasize to OAC_and OSR
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personnel the process for updating and ' maintaining _'the.
Operations Status
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Boards. .
Additionally,
the. Engineering Team 1will be given training on
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analyzing.and trending of critical plant parameters.-
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These corrective measures will be implemented before the 1990 Emergency
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Preparedness exercise.
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Exercise Weakness
(482/8930-02): Inadeauacies associated with the exercise
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scenario
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Resoonse
WCNOC has reviewed the examples of scenario inadequacies identified in the-
Reference.
This review determined that the lack of specific details and
insufficient control of the scenario by the controllers led to these
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inadequacies,
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Attachment to WM 90-0021
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Page 2 of 3
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WCNOC will- assign,; additional Maintenance and Operations personnel to_the-
Scenario Development Committee.-
This will allow greater input for review
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and dtvelopment of scenario details.
A detailed timeline will be developed
for use by the sbaulator staff to allow them to quickly exert more control-
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over the Control' Room Simulator crew. In addition, more simulator time will
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be scheduled during the' scenario. development stage'to better estimate player
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actions during the exercise. The controller briefings will be more detailed:
to' ensure controllers are_ aware _of
their responsibilities.- . Management
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personnel ~have 'been assigned
to- the Scenario Development Committee to
provide support to the activities needed to build a good scenario. .
These corrective measures will be implemented before .the 1990- Emergency
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-Preparedness exercise.
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Open Item (482/8930-03): Reliability of telenhone communications durina an
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emergency
Resoonse
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Evaluation of Observations bv'the NRC and WCNOC
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During. the exercise several-telephones were observed to ring' simultaneously
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at intermittent times starting at approximately 1005 hour0.0116 days <br />0.279 hours <br />0.00166 weeks <br />3.824025e-4 months <br />s:stu! lasting ffor
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two or three minutes.
The affected' telephones were eight of the direct
outside lines,
the ringdown-lines to Wichita'(to the WOEC)~,- and to Topeka
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(to the PIO and telecopier), for a total.of eleven-lines. .
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The' ENS.- _HPN,
verification phone, and the twenty-nine. telephone numbers
through the Wolf Creek System- continued; working.. ~
necessary
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communications by telephone could still be: maintained to allLfacilities and
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locations.
Backup radio communications to the State of Kansas 'and Coffey
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County remained available.
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The problem lasted a very short amount of time and therafore there. was no-
adverse impact on the exercise.
If the problem would have continued the
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impact would have been minimal since other-telephones were available.
Another telephone problem identified during the exercise' occurred' at the:
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State Forward Staging Area.
One of the two installed' lines was not working-
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properly.
The Kansas Highway Patrol and'Nationel Guard were able to share
the remaining telephona line and each had radio communications.
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Description of Similar Problems
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The only similar problem occurred during a drill on October 26,
1984.
During this drill all telephones through the Wolf Creek System were
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inoperable for two to three hours.
The few direct outside lines present at
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that time were not affected.
Radio communications were operable and
utilized by the State.
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Attachment to WM 90-0021-
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This--problem occurred when a telephone company work crew cut through the
cable for.the Wolf Creek System.. ;The cable was repaired in approximately
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two hours.-
Descrintion of the Cause-
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United Telephone' System'(UTS) was' contacted concerning the. telephone problem
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during the drill.
UTS had' installed a new buried' cable from the south side
of New Strawn. 'along Highway 75 to' north of the Sharpe Road intersection..
On the morning.of December 6,
1989Ltwo UTS technicians were assigned -to c
splice the new cable to the existing cable that supplies the EOF telephone'
service.
The temporary loss of telephone. service and ringing was caused by-
the UTS technicians splicing the new cable to the existing cable.
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The cause of the State Forward Staging; Area problem was a faulty telephone
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jack.
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Descriotion of Additional Testina or Remedial Action
The telephone cable that supplies the EOF emergency plan circuits is located
in: the Burlington central office where.six of the emergency plan telephone:
numbers are assigned to one line finder:: group which is: made 'up' of one
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hundred telephone numbers.
WCNOC had'six emergency plan; telephone numbers
in the group along with ninety-four private telephone numbers. _A maximum of
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twelve- telephone calls: can.be made from this one'line finder group at any
given time,
and the remaining attempted calls from the eighty-eight
telephone numbers would not be processed until' one of the' twelve line
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finders is di. connected.
UTS has relocat.d our emergency . plan- tel. phone
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numbers and placed them in different line finder groups.
This.will reduce
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the chance of overloading any line finder' group.
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In addition WCNOC will investigate the possibility of placing each emergency
plan telephone circuit on its own dedicated telephone cable pair to further-
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reduce the possibility of losing all emergency plan telephones at- the same
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time.
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UTS is scheduled to install a new digital telephone system for,Burlington in
1991.
This should increase the number of-line finder groups avnilable- and
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will decrease the time it currently takes to put a, call through.
These
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items will enhance our telephone communications system.
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At the State Forward Staging Area a.new telephone jack has been installed
and tested.
Both-telephone lines will be tested on a quarterly ' basis 'for?
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outgoing and incoming calls.
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W$LF CREEK
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April 18, 1990
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U. S. Nuclear Regulatory Connaission'
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' ATTN:- Document Control Desk
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Mail Station P1-137
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APR 2 31990-- 0,L
Washington, D. C. 20555
pg/
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Reference: Letter dated March 16, 1990 from S. J. Collins, NRC, to
B. D. Withers, WCNOC-
Subjects'-
Docket No. 50-482 . Response to Request for Additional
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Information on Exercise Weakness- 482/8930-01
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Gentlemen:
This. letter provides Wolf Creek l Nuclear-Operating Corporation's (WCNOC)
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response to the' request for additional information documented in the
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Reference.
The request for additional. information was associated with.
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exercise weaknese 482/8930-01 concerning .the failure of the Emergency:
Operations Facility staff to be aware of significant reactor' conditions.
If you have any question concerning this matter, .please contact me or
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Mr. H. K. Chernoff of my. staff,
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Very4 truly.yours,
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Bart D. Withers
President and'
Chief Executive Officer
BDW/jra
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Attachment
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cci 'R. D. Martin'(NRC), w/a
D. Persinko (NRC), w/a
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D. V. Pickett (NRC), w/a
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M. E. Skow (NRC), w/a
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P.O. Box 411/ Burtngton, KS 66839 / Phone: (316) 364 8831
An Equal Opporturey Esgioyer WFMcNET
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-Attachment.to WM 90-0081"
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Response to Request for Additional
Information Regarding Emergency Exercise Weakness 482/8930-01
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Reauest
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We request that additional information-be provided in response to Exercise-
Weakness- 482/8930-01.
This weakness concerned the failure of the emergency-
operations facility stkff to be aware of.significant reactor conditions.- We.
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are concerned that in the ~ December" exercise,
the. emergency operations
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facility staff was not provided necessary reactor: parameters and failed to
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recognize-that the core was not. covered for'. appropriate cooling and_ that-
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hydrogen levels'were~ increasing.-
We understand . from-your responselthat the communications flow process will
be reviewed to identify needed.improvemente and that corrective- measures
will'be implemented before the.1990 emergency exercise.- However,'we believe-
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that the corrective measures to be developed- should be' -implemented well
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before the~ scheduled August 1990 exercise.
These measures should not
require extensive. effort and are necessary. to' ensure that important
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information such as
changingL reactor' parameters :is communicated to the.
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necessary level of management should a significant event occur.
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Response:
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The review of the communications: flow process Lbetween emergency response
f acilities has been completed. -Emergency Plan training has been
given- to
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Operations Assessment Coordinators'(OAC).and. Technical, Support Center (TSC)
Operations Status Board Recorders-(OSR)
that emphasized: the process for.
updating and maintaining the Operations Status Boards.-
This training was
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completed on February 16,'1990.
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Similar Emergency Plan training for Emergency Operations Facility _(EOF) OSRs
is scheduled for completion by June 29,
1990._
Trending and. analysis of
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critical plant parameters training for the EOF Engineering Team is- also
scheduled for completion by June:29, 19904 -
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A review of the present location of the Operation Status Boards has been
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completed.
Because' of the present configuration ofE the facilities,
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relocating the status boards will not result in any- improvement- in'
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communications.
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