ML19317E060
| ML19317E060 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 03/26/1973 |
| From: | Murphy C NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| To: | James Keppler US ATOMIC ENERGY COMMISSION (AEC) |
| References | |
| NUDOCS 7912110834 | |
| Download: ML19317E060 (1) | |
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UNITED STATES o
ATOMIC ENERGY COMMISSION l l e
DIRECTORATE OF REGUIATCRY OPERATICNS
.s REGION ll - SUIT E SIS g'4f'd,/
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MAR 2 61973 J. G. Keppler, Chief, Reactor Testing and Operations Branch (2)
Directorate of. Regulatory Operations, Headquarters RO INQUIRY REPORT No. 50-269/73-1Q DUKE POWER COMPANY (OCONEE 1), LICENSE NO. DPR-38, DOCKET No.
50-269, SECONDARY SYSTEM WATER QUALITY The attached Inquiry Report is forwarded for your information.
A. R. Herdt, Region II metallurgist, has reviewed the information received from DPC and, based upon these facts, does not feel that the occurrence represents a problem. We plan to review the inci-dent during a forthecming inspection but plan no ibrther action.
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C. E. Murphy,/Act ng Chief
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RO:II:CEM Facilities Test and Startup Branch
Enclosure:
RO Inquiry Rpt. No.
50-269/73-1Q cc v/ encl:
J. B. Hendersen, RO RO:HQ (5)
DR Central Files Regulatory Standards (3) j Direc* orate of Licensing (13)
A. R. Herdt, RO:II cc encl. only:
'PDR~
- Local PDR
- NSIC
- DTIE, OR
' State i
To be dispatched at a later date.
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f' U. S. ATOMIC EVERGY COM ESSION
'f-REGION II DIRECTORATE OF REGULATORY OPERATIONS RO Inquiry Report No.:
50-269/73-1Q Licensee: Duke Power Ccmpany Power Building 422 South Church Street Charlotte, North Carolina 28201 License No.: 'DPR-38 Facility: Oconee 1 Descriptive
Title:
Secondary System Water Quality Prepared By:
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F. Jape, Rea6tdr Inspector Date Facilities Test and Startup Branch A.
Date and Manner AEC Was Informed:
Mr. J. E. Smith, Oconee Plant Superintendent, advised R. F. Warnich, Region II Principaa. Inspector, by telephone of the incident on March 10, 1973, at about 1:00 p.m.
Follovup information was obtained by F. Jape, Region II Inspector, by telephone from J. E. Smith on March 20, 1973.
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B.
Description of P eticular Event or Circu= stance:
Two gallons of 505 NaOH vere mistakenly used in place of NH 0H 1-the 2
chemical mix tank which was used to adjust the "A" steam generacor feedvater pH.
The error was discovered approximately 6.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> af'er it was made. A sample of the feedvater taken at 10:00 a.m. on March 9, i"
1973, revealed the concentration of NaOH vas 35 ppm and the pH vas 11.
The temperature of the water during the event was not greater than i
80*F.
C.
Action by Licensee:
It was decided to drain and refill the steam generator with water of the proper quality.. Draining began at 1. 05 p.m. and was co=pleted by
-12:00 p.m. en March 9, 1973. A sample taken after the steam generator was filled had 2 7 ppm NaOH.
DPC decided to drain and refill a second s
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'RO' Inquiry'Rpt)No
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50-269/73 -:
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This was' completed by 1:30 a.m.-on March 10, 1973,- and a sample time. i 4
1at thatitime had 0 77 ppm NaOH.
t In addition to.the draining and refilling' of the water in the steam
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igenerator, the storage arrangement of the chemicals has been modified to' prevent a recurrence.
The' licensee' has. ctated that there was essentially-no damage to the
< reactor coolant boundary and is,-therefore, not-a reportable incident.
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