ML20154L667
| ML20154L667 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 05/20/1988 |
| From: | Tiernan J BALTIMORE GAS & ELECTRIC CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| GL-88-05, GL-88-5, NUDOCS 8806010028 | |
| Download: ML20154L667 (2) | |
Text
,
\\
B A LTIMORE GAS AND ELECTRIC CHARLES CENTER R O. BOX 1475 BALTIMORE. MARYLAND 21203 JOSEPH A.TIERN AN Vict PatslOENT NucLtAn ENERGY May 20,1988 U. S. Nuclear Regulatory Commission Washington, DC 20555 ATTENTION:
Document Control Desk
SUBJECT:
Calvert Cliffs Nuclear Power Plant Unit Nos.1 & 2 Docket Nos. 50-317 & 59-338 Generic Letter 88-05, Boric Acid Corrosion of Carbon Steel Reactor Pressure Boundary Comoonents in PWR Plants Gentlemen:
In 1981, we recognized the need for a program to monitor for boric acid leakage onto carbon steel components and implemented a program that, on a refueling outage basis, ex*: mines carbon steel components that could be subject to a boric acid environment. In audition to this inspection program, a nuinber of icprovements have been made to reduce the potential fo7 boric acid leakage onto components; valves with packing have been replaced with hermetically sealed valves in many instrument root lines and the reactor vessel head vent line; modifications have been performed to the reactor coolant pump seal tubing supports and the 8eometry of the seal pressure-indicating, vertt, and l
bleed-off lines; and an extensive valve-repack program which includes those valves subject to boric acid leakage has been implemented.
The program currently in place is not formalized. Improvements in auditability and l
some adjustments to priorities need to be made. The existing program accomplishes the 1
objectives of the subject generic letter. We realize the benefits of formalizing the prog ram, and intend to do so. The revised program will be enhanced by incorporating
(
all aspects mentioned in the subject generic letter. Examinations will continue as l
these improvements are made.
l A formal program that complies with NRC Generic 1.etter 88-05 will be fully implemented l
by December 31, 1989. This timing allows for a thorough walkdown of each unit, which will ensure that all components requiring inspection will be included.
l I
l 0
8806010028 88032o DR ADOCK 05000317 CCD l
Document Control De:k May 20,1988 a
Page 2 Should you have any questions regarding this matter, we will be pleased to discuss them with you.
Very truly yo hN STATE OF MARYLAND :
TO WIT:
COUNTY OF CALVERT I nereby certify that on the 20th day of
/w
,19 N, before me, the subperiber, a Notary Public of the State of Maryland)in and for 6h/ n f
/i>/af,
, personally appeared Joseph A, Tiernan, being duly sworn, and states that he is' Vice President of the Baltimore Gas and Electric Company, a corporation of
/
the State of Maryland; that he provides the foregoir:g response for the purposes therein set forth; that the statements made are true and correct to the best of his knowledge, information, and belief; and that he was authorized to provide the response on behalf of said Corporation.
WITNESS my liand and Notarial Seal:
27A'Al 6&
Notary Public My Commission Expires:
1/A-
/, N98
(/
pate JAT/DLS/dtm cc:
D. A. Brune, Esquire J. E.
Silberg, Esqt; ire R. A.Capra, NRC S. A. McNeil, NRC W, T. Russell, NRC D. C. Trimble. NRC
(
)