IR 05000275/1993016
| ML20059M820 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 08/18/1993 |
| From: | Vandenburgh C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | |
| References | |
| OLA-2-I-MFP-046, OLA-2-I-MFP-46, NUDOCS 9311190356 | |
| Download: ML20059M820 (14) | |
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UNrrED STATES
NUCLEAR REGULATORY COMMISSION
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REGION V
H50 MARIA LANE p
4,5 WALNUT CREEK, CAUFORNIA 94596-5368
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g 3 0 W93 Pacific Gas and Electric Company Nuclear Power Generation, B14A 77 Beale Street, Room 1451 P. O. Box 770000 San Francisco, California 94177 l
Attention: Mr. G. M. Rueger, Senior Vice President and General Manager l
Huclear Power Generation Business Unit Subject:
.
NRC INSPECTION ~ REPORT NOS. 50-275/93-16 AND 50-323/93-16 This refers to the routine inspection conducted by M. Miller and F. Gee during the period from May 25 through July 6,1993. This inspection examined your activities as authorized by NRC License Nos. DPR-80 and DPR-82. At the conclusion of the inspection, the inspectors discussed their findings with members of the PG&E staff.
Areas examined during this inspection are described in the enclosed inspection report. Within these areas, the inspection consisted of selective examinations of procedures and representative records, interviews with personnel, and observations by the inspectors.
Based on the results of this inspection, it appears that certain areas of your
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activities were not conducted in full compliance with NRC requirements, as set forth in the enclosed Notice of Violation (Notice). These violations involved (1) two instances of inadvertent dilution of boron in the reactor coolant i
system, resulting from failure to follow or provide adequate procedures; and (2) failure to perform timely reviews of action requests to determine whether a quality evaluation was requirea. The boron dilution events represented a failure of plant processes to properly control reactivity due to poor procedure quality and adherence. We are also concerned regarding the length of time that passed after the initial event before plant management initiated corrective action.
Inaccordancewith10CFR2.790(a),acopyofthisletter,theenclosures,and your response will be placed in the NRC Public Document Room.
The response directed by this letter and the accompanying Notice are not subject to the clearance procedures of the Office of Management and Budget as required by the Paperwork Reduction Act of 1980, Pub. L.96-511.
9311190356 930818
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PDR ADOCK 05000275 O
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Shtuld you have any questions concerning this inspection, we will be pleased to discuss them with you.
Sincerely, 3\\'
C.A.VanDenburgk, Chief
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Reactor Projects BPanch Enclosures:
1.
Inspection Report Nos. 50-275/93-16 and 50-323/93-16
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cc w/ enclosures:
Dr. Richard Ferguson, Energy Chair, Sierra Club California Ms. Nancy Culver, San Luis Obispo Mothers for Peace v Ms. Jacquelyn C. Wheeler Managing Editor, The County Telegram Tribune Chairman, San Luis Obispo County Board of Supervisors Mr. Truman Burns, California Public Utilities Commission Mr. Robert Kinosian, California Public Utilities Commission Robert R. Wellington, Esq., Diablo Canyon Independent Safety Committee Mr. Steve Hsu, Radiologic Health Branch, State Department of Health Services Mr. Peter H. Kaufman, Deputy Attorney General, State of California Mr. Mark Urban, Deputy Attorney General, State of California Christopher J. Warner, Esq., PG&E Mr. John Townsend, Vice President and Plant Manager, Diablo Canyon
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