ML20009A174
| ML20009A174 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 06/22/1981 |
| From: | Clark R Office of Nuclear Reactor Regulation |
| To: | Lundvall A BALTIMORE GAS & ELECTRIC CO. |
| References | |
| NUDOCS 8107090128 | |
| Download: ML20009A174 (2) | |
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JUN 2 21961 DI ION:
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Mr. A. E. Lundvall, Jr.
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JUN 2 5198;u _L Baltimore Gas & Electric Company OELD
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Baltimore, Maryland 21203 R.A. Clark
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Dear Mr. Lundvall:
P.M. Freutzer-3 b/
j By letter dated August 5,1980, you provided a r.omprehensive repor of the power distribution episode of Calvert Cliffs, Unit No.1. This episode resulted from a crud buildup primarily on the lower part of the fuel assemblies. The crud was postulated to consist of corrosion products from the reactor coolant system piping surfaces as a result of an abnorinally high oxygen ingress.
We have completed our review of the report and find that you have taken positive action to prevent reoccurence including pericanent changes to procedure and several hardware modifications.
In a recent telephone conversation with your Mr. J. Lippold, we were informed that fuel inspection performed in late 1980 revealed an acceptable increase in the zirconium cxide thickness.
We consider this episode satisfactorily resolved and commend your staff for the professional handling of the entire problem.
Sincerely.
Original sigaed by Robert A. Clark Robert A. Clark, Chief Operating Reactor Branch #3 Division of Licensing cc: See next page C107090128 810622 PDR ADOCK 05000317 S
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JUN 2 21991 Occket No. 50-317 Mr. A. E. Lundvall, Jr.
Vice President - Supply Baltimore Gas & Electric Company P. O. Box 1475 Baltimore, Maryland 21203
Dear Mr. Lundvall:
By letter dated August 5, 1980, you provided a comprehensive report of the power distribution episode of Calvert Cliffs, Unit No.1.
This episode resulted from a crud ouildup primarily on the lower part of the fuel assemblies. The crud was postulated to consist of corrosion products from the reactor coolant system piping surfaces as a result of an abnormally high oxygen ingress.
We have completed our review of the repo-t and find that you have taken positive action to prevent reoccurence including permanent changes to procedure and several hardware modifications.
In a recent telephone conversation with your Mr. J. Lippold, we were informed that fuel inspection performed in late 1980 revegled an acceptable increase in the zirconium oxide th'ickness We consider this episode satisfactorily resdived and commend your staff for the professional handling of the entire problem.
Sincerely,
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C-Robert A. Clark, Chief Operating Reactor Branch #3 Division of Licensing cc: See next page
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James A. Siddison, Jr.
lis. fiary Harris 0::, F::: N n'.
General Couns.el Calvert County Boarc of County Commissioneri Baltimore Gas and Electric C =any Prince Frederick, MD 20766 P. O. Box 1475 Saltimore, MD 21203 U. S. Environments' orotection Agency Region III Office George F. Trowbridge, Esquire Attn:
EIS Coordinator Shaw, Pittmtn, Potts and Trowbridge Curtis Building (Sixth Floor) 1800 M Street, N. W.
Sixth and Walnut Streets Washington, D. C.
20036 Philadelphia, PA 19106 Mr. R. C. L. Olson, Principal Engineer Mr. talph E. Architzel Nuclear Licensing Analysis Unit Res Jent Reactor Insps: tor Baltimore Gas and Electric Company NRC Inspection and Enforcement Room 922 - G&E Building P. O. Bos 437 P. O. Box 1475 Lusby, M0 20657 Baltimore, MD 21203 Mr. Charles B. Brinkman Mr. Leor. B. Russell Manager - Washington Nuclear Operations "lant Superintendent Combustion Engineering, Inc.
Calvert Cliffs Nucledar Power Plant 4853 Cordell Avenue, Suite A-1 Maryland Routes 2 & 4 Bethesda, MD 20014 Lusby, MD 20657 Mr. J. A. Tieman, Manager Bechtel Power Corporation Nuclear Power Department Attn: Mr. J. C. Oudd Calvert C'iiffs Nuclear Power Plant Chief Nuclear Engineer Maryland Routes 2 & 4 15740 Shady Grove Road.
Lusby, MD 20657 Gaithersburg, MD 20760 Director, Criteria and Standards Division Combustion Engineering, Inc.
Office of Radiation Programs (ANR-460)
Attn: Mr. P. W. Kruse, Manager U. S. Environmental Protection Agency Engineering Services Washington, D. C.
20460 P. O. Box 500 Windsor, CT 06095 Mr. W. J. Lippold, Supervisc,r Nuclear Fuel Management Public Document Room Baltimore Gas and Electric Company i Calvert County Library Calvert Cliffs Nuclear Power Plant Prince Frederick, MD 20678 P. O. Box 1475 Baltimore, Maryland 21203 Director, Department of State Planning 301 West Preston Street Mr. R. E. Denton, General Supervisor Baltimore, MD 21201 Training & Technical Services Calvert Cliffs Nuclear Power Plant Mr. R. M. Douglass, Manager Maryland Routes 2 & 4 Quality A surance Department Lusby, MD 20657 Fort Smallwood Road Complex --
P. O. Box 1475 Baltimore, MD 21203 Mr. T. L. Syndor, General Supervisor Administrator, Power Plant Siting Program Operations Quality Assurance Energy and Coastal Zone Administration C. Nert Cliffs Nuclear Power Plant Department of Natural Resources Maryland Routes 2 & 4 Tawes State Office Building Lusby, MD 20657 Annapoli s, MD 21204 i
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