IR 05000263/1972002
| ML20024G535 | |
| Person / Time | |
|---|---|
| Site: | Monticello  |
| Issue date: | 07/20/1972 |
| From: | Sniezek J NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML20024G522 | List: |
| References | |
| 50-263-72-02, 50-263-72-2, NUDOCS 9102120621 | |
| Download: ML20024G535 (1) | |
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U. S. ATOMIC ENERGY COMMISSION DIRECTORATE OF REGUIATORY OPERATIONS REC 10N III RO Inquiry Report No. 050-266/72-02 Subject: Wiscqnsin Michigan Power Company Licenso No. DPR-24 Point Beach Unit 1 Boric Acid Tank Concentration h o b...
e Prepared By:
/b J. H. Sniezek 1./, J.0 / f ff,
'
f/ 4Date)
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A.
Date and Manner AEC was Informed:
Mr. Glenn A. Reed, Manager - Nuclear Power Division, notified Region'III by telephone on July 10, 1972.
B.
Description of Particular Event or Circumstance:
Boric acid tank A..was lined up to supply the charging pumps for Unit 1.
Analysis of the boron concentration in the A tank on July 18, 1572, indicated a coneontration of 11.0% boric acid by weight.
Technical Specification 15.3.2.B.3 requires that the boron concentra-tion be greater than 11.5% by weight. On July 11, 1972, the concentration in the A tank was determined to be 12.9% by weight and on July 14, 19 72, i t wa s 11. 8%.
The reactor wac operating et significant power.
C.
Action By Licensret l
The licensee sampled the B and C boric acid tanks and verified that the concentration was 12.9% by weight. The supply for Unit I was shifted to the B boric acid tank. The C tank was lined up to Unit 2 originally.
Mr. Reed stated that a review of the matter revealed that the makeup water supply valve to the A tank was cracked of f of its seat thos diluting the tank contents. A review of the facility records for the period July 11-18, 1972, indicated that the tank level increased from 40% to 52%.
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The licensee intends to report this matter to the Directorate of Licensing within ten days as required by Technical Specification l
15.6.6.A.2.
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9102120621 720622 gDR ADOCK 05000263 PDR
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