ML20070P320
| ML20070P320 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 12/29/1982 |
| From: | Carey J DUQUESNE LIGHT CO. |
| To: | Starostecki R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| Shared Package | |
| ML20070P300 | List: |
| References | |
| NUDOCS 8301260312 | |
| Download: ML20070P320 (3) | |
Text
'At3 Telephone (412) 4564000 Nuclear Division P o. Box 4 Shipping.nort PA 150770)04 December 29, 1982 U. S. Nuclear Regulatory Commission Of fice of Inspection & Enforcemet.t A t tn :
Mr. R. W. Starostecki, Director Division of Project 6 Resident Programs Region I 631 Park Avenue King of Prussia, Pennsylvania 19406
Reference:
Beaver Valley Power Station, Unit No. 1 Docket No. 50-334, License No. DPR-66 IE Inspection Reprrt No. 32-25 Gentlemes.:
In response tr, your letter of August 30, 1982, and in accordance with 10 CIR 2.201, the attached reply addresses Notice of Violation A and B which was included as Appendix A with the referenced Inspection Report.
As discussed with the Resident Inspector on December 29, 1982, we will supply a response to Violation C on or before January 10, 1983.
If you have any questions concerning this respense, please contact my office.
Very truly yours,
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. J. Carey l
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Vice President, Nuclear I
A t t achn.e n t I
cc:
Mr. W. M. Troskoski, Resident Inspector U. S. Nuclear Regulatory Commission Beaver Valley Power Station j
l Shippingport, PA 15077 l
l U. S. Nuclear Regulatory Cormission I
c/o Locument Management Branch Washington, DC 20555 l
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DUQUESNE LIGHT COMPANY Bsever Valley Powar Station Unit No. 1 Reply to Notice of Violation Inspection 82-25 i
Letter dated November 30, 1982 VIOLATION A Description of Violation (82-25-02)
Technical Specification 6.8.1 and Appendix A of Regulatory Guide 1.33, November 1972 requires the implementation of administrative procedures l
concerning procedure adherence. BVPS OM 1.48.3, Section G, Adherence to Operating Procedures, requires adherence to operating procedures except in instances that do not af fect the nuclear safety of the plant and the overall operation of the system or plant is not jeopardized.
BVPS OM 1.8.4 requires that primary water supply pumps be aligned so that suction and recirculation is to the same tank when supplying the makeup header.
Contrary to the above, on October 18, 1982, there was a lack of adherence to an operating procedure that af fected plant nuclear safety and resulted in the overall operation of the primary water supply system being jeopar-dized as evidenced by the loss of makeup header pressure leading to difficulty in maintaining pressurizer level and subsequent letdown system isolation on low pressurizer level. This loss of makeup header pressure resulted from altering primary water supply pump alignment so that suction and recirculation were not from the same tank when supplying the makeup header in that suction was taken from tank BR-TK-6B with recircu-la tion to tank BR-TK-6A.
Corrective Action Taken The primary water supply pump suction and recirculation were aligned to the same tank.
Action Taken to Prevent Recurrence Our investigation has determined that the root cause of this event was poor communication between operators due to thu large number of operations required to bring the plant to the proper condition during the incidee..
The Operations Supervisor has discusced the events and proper actions with the operators involved and this item has been included for all operators in License Retraining, Module II.
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Our investigation has also determined that incortcet calibration of the level alarus on BR-TK-6A and 6B prevented immediate detection and correction t
of the valving error by preventing receipt of the high level alarm prior l
to overflow.
The level alarms for BR-TK-6A and 6B hava been recalibrated to prevent recurrence of this problem.
Date Upon Which Full Compliance Will be Achieved i
J The corrective actions discussed above have been completed.
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Beaver Valley Power Station, Unit No. 1 Reply to Notice of Violation Inspection 82-25 Page 2 VIOLATION B Description of Violation (82-25-03)
Tcchnical Specification 6.8.2 requires that operating procedures be j
reviewed by the OSC and approved by the Plant Superintendent.
Contrary to the above, as of October 25, 1982, the control room tank curve book, in effect a part of operating procedures in that curves from that book are required to be used by cperators in such computations as J
liquid waste discharge volumes per procedure 0.M.1.17.4 and boric acid inventory per procedure 0.S.T 1.7.8, had not been reviewed by the OSC ard approved by the Plant Superintendent.
Corrective Action Taken We have reviewed the accuracy of tank curves for tanks used for liquid discharges or surveillance testing. The following curves have been reviewed:
Cll-TK-2 Volume Control Tank DC-TK-1, 2 Primary Drain Transfer Tanks BR-TK-4A, 4B Coolant Recovery Tanks WT-TK-10 Primary Plant Demineralized Water Storage Tank LW-TK-5A, SB Evaporator Test Tanks LW-TK-3A, 3B Low-Level Waste Drain Tanks QS-TK-1 Refueling Water Storage Tanks RC-TK-2 Pressurizer Relief Tank BR-TK-2A, 2B Test Tanks LW-TK-6A, 6B Laundry and Contaminated Shower Drain Tanks l
LW-TK-7A, 7B Steam Generator Drain Tanks BR-TK-6A, 6B Primary Water Storage Tanks j
Action Taken to Prevent Recurrence The entire curve book will be submitted to the OSC for review and then forwarded to the Station Superintendent for approval.
t In the future, the tank curves will be controlled under 0.M. Chapter 48, Section 9, Procedure "M", " Revisions to Operating Group Valve Operating Number Drawings".
Date on Which Full Compliance Will be Achieved 2
i The control room tank curve book will be approved by January 31, 1983.
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