ML16342A206
| ML16342A206 | |
| Person / Time | |
|---|---|
| Site: | Diablo Canyon  |
| Issue date: | 07/30/1993 |
| From: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| To: | |
| Shared Package | |
| ML16342A205 | List: |
| References | |
| 50-323-93-16, NUDOCS 9308160129 | |
| Download: ML16342A206 (4) | |
Text
NOTICE OF VIOLATION Pacific Gas and Electric Company Docket No.
50-323 Diablo Canyon Nuclear Plant, Units 1 and 2
License No.
DPR-S2 l'uring an NRC inspection conducted during the period of May 25 July 6,
- 1993, violations of NRC requirements were identified.
In accordance with the "General Statement of Policy and Procedure for NRC Enforcement Actions,"
10 CFR Part 2, Appendix C, the violations are listed below:
10 CFR 50, Appendix B, Criterion V states, in part:
"Activities affecting quality shall be prescribed by documented instructions, procedures, or drawings of a type appropriate to the circumstances and shall be accomplished in accordance with these instructions, procedures, or drawings."
Operating Procedure OP G-5: III, "Spent Resin Transfer System Demineralizer Resin Load and Rinse," Revision 4, Section 5.2 required that the mixed bed demineralizers be thoroughly saturated with boron based on sample analysis during the rinse process.
(This will prevent an inadvertent dilution when the demineralizer is placed in service.)
Contrary to above,'he resin bed in mixed bed demineralizer 2-2 was replaced, but was not saturated with boron before being returned to service on April 5, 1993, resulting in an inadvertent boron dilution.
2.
Operating procedure OP B-1A:XIII, "CVCS Place Cation Bed in Service / Prepare Deborating Demineralizer for Service,"
Revision 2, provided instructions for placing the cation bed demineralizer 2-1 in service, Contrary-to the above, OP B-1A:XIII was not appropriate to the
" circumstances when it was used on May 12, 1993, in that the proce-dure did not provide for verification of proper boron concentration in the cation bed demineralizer and associated piping, to preclude an unplanned reactor power increase.
B.
This is a Severity Level IV violation (Supplement I), applicable to Unit 2.
10 CFR Part 50, Appendix B, Criterion XVI, states, in part:
"Measures shall be established to assure that conditions adverse to quality...
are promptly identified and corrected.
In the case of significant conditions adverse to quality, the measures shall assure that the cause of the condition's determined and corrective action taken to preclude repetition."
Diablo Canyon quality-related Inter-Departmental Administrative Procedure OM7.ID2, "guality Evaluations,"
Revision 0, effective March 8, 1993, required that all Corrective Maintenance arid Administrative Task 9308160129
'F30730 PDR ADOCN 05000275 6
0
type Action Requests to which the guality Assurance Program is applicable be reviewed by guality Assurance/guality Control to determine if a guality Problem exists within thirty (30) calendar days of assignment of the quality evaluation pending status.
Contrary to the above:
l.
Administrative task type action request (AR) AR-A0301928, initiated on April 6, 1993, to document an unplanned dilution of boron in the reactor coolant system, was not reviewed to determine whether a quality problem existed until Hay 12,
- 1993, more than 30 days after it was initiated.
2.
As of June 9,
- 1993, 39 ARs initiated by various departments more than 30 days earlier had not been reviewed to determine whether a
quality problem existed.
This is a Severity Level IV violation (Supplement I), applicable to Units 1 and 2.
Pursuant to the provisions of 10 CFR 2.201, Pacific Gas
& Electric Company is hereby required to submit a written statement or explanation to the U.S.
Nuclear Regulatory Commission, ATTN: Document Control Desk, Washington D.C.
20555, with a copy to the Regional Administrator, Region V, and a copy to the NRC Resident Inspector, Diablo Canyon Power Plant, within 30 days of the date of the letter transmitting this Notice of Violation (Notice).
This reply should be clearly marked as a "Reply to a Notice of Violation" and should include for each violation: (1) the reason for the violation, or, if contested, the basis for disputing the violation, (2) the corrective steps that have been taken and the results
- achieved,
- 3) the corrective steps that will be taken to avoid further violations, and 4
the date when full compliance will be achieved.
If an adequate reply is not received within the time specified in this Notice, the Commission may issue an order or a request for information as to why the license should not be modified, suspended, or revoked, or why such other action as may be proper should not be taken.
Where good cause is shown, consideration will be given to extending the response time.
Dated at Walnut Cree
, California, this.~day of a
1993
I