ML20199J801
| ML20199J801 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 02/02/1998 |
| From: | Marissa Bailey NRC OFFICE OF NUCLEAR MATERIAL SAFETY & SAFEGUARDS (NMSS) |
| To: | Cruse C BALTIMORE GAS & ELECTRIC CO. |
| References | |
| IEB-96-004, IEB-96-4, NUDOCS 9802060039 | |
| Download: ML20199J801 (3) | |
Text
.
- 37).W7/.W ma aseg s
k UNITEU STATES yo f
,j NUCLEAR REGULATORY COMMISSION g
WASHINGTON, D.C. $setHoot
(
c, 4
Febr9ary 2,1998 Mr. Charles H. Cruse Vice President Nuclear Ene.igy Battimore Gas and Electric Company Calvert Cliffs Nuclear Power Plant 1850 Calved Cliffs Parkway Lusby, Maryland 20657
SUBJECT:
ACCEPTANCE OF RESPONSE TO NUCLEAR REGULATORY COMMISSION BULLETIN 96-04
Dear Mr. Cruse:
On August 19,1996, as supplemented November 4,1996, and December 17,1997, Baltimore Gas and Electric Company responded to Nuclear Regulatory Commission Bulletin 96-04 for the NUHOMS 24P spent fuel storage system used at the Calvert Cliffs Nuclear Power Plant. This is to inform you that NRC reviewed your response and found it acceptable.
In your,esponse, you incorporated and concurred with the bulletin response from VECTRA i
Technologies, Inc. (now Transnuclear West, Inc.). On November 17,1997, NRC informed you j
that it had accepte<1 VECTRA's,*esponse and issued a safety evaluation (also dated November 17,1997). As discussed in this, safety evaluation, hydrogen could be generated in the NUHOMS 24P due to the corrosion of the flame-sprayed aluminum coating in borated water. Consequently, VdCTRA recommended setting a safe upper limit of 2.4% hydrogen by volurne for the hydrogen conceatration in the dry shielded canister (DSC) during welding or cutting operations. The staff accepted this recommendation and further concluded that DSCs with flar.)e-sprayed aluminum should be monitored continuously for hydrogen during welding or cutting.
Accordingly, in your December 17,1997, submittal, you agreed to continuously monitor for hydrogen during the welding or cutting of DSCs with flame sprayed aluminum. You also agreed to adopt VECTRA's recommended safety limit of 2.4% hydrogen by volume. Procedures for controlling and monitoring hydrogen in the DSC should be in place before you begin loading or unloading any more DSCs. Please note that the cask loading and unloading procedures at Calved Cliffs may be the subject of a future NRC inspection, i
W0ll D
0c 002 9002060039 990202 PDR ADOCK 05000317 G
PDR t
I 5
1
4 4
Mr. C.H. Cruse 2-if you have any questions regarding this matter, you may contact me at (301) 4h.8531 or Timothy McGinty at (301) 415-8580.
Sincerely,-
[Originalsignedby/s/]
Marissa G. Bailey, Project Manager Spent Fuel Licensing Section Spent Fuel Project Office Office of Nuclear Material Safety and Safeguards Dockets 72-8,50-317/318 cc: Service List Distribution:
Dockets NRC File Center PUBLIC -
NMSS r/f SFPO r#
SFLSr#
CHaughney SShankman EEaston PEng LKokajko Clnterrante KBattige JDavin, NRR Pray, NRR ADromerick, NRR Region I GMeyr, RI OFC SFPO M E
SFPO y 28 SFPO C
SFFO SFPO[
C.
NAME MGBalley:dd VThe TMI Elks DATE 01/fd/98 01M/98 Oil 0/98 19Y/98 01/2 //98 OM$ALVERT.A$
OFFICIAL RECONC Y
G:
s444 2/2/98 :dd e
i mm_________.
4 Calvert Cliffs Nuclear Power Plant Unit Nos.1 and 2 cc:
President Mr. Joseph H. Walter, Chief Engineer Calvert County Board of Public Service Commission of Commissioners Maryland 175 Main Street Engineering Division Prince Frederick, MD 20678 6 St. Paul Centre Baltimore, Mn 21202-6806 James P. Bennett, Esquire Counsel Kristen A. Burger, Esquire Baltimore Gas and Electric repany Maryland People's Counsel
- P.O. Box 1475 6 St. Paul Centre Baltimore,MD 21203 Suite 2102 Baltimore, MD 21202 1631 Jay E. Silberg, Esquir6 Shaw, Pittman, Potts and Trowbridge Patricia T. Bin le, Esquire 2300 N Street, NW Co Director Washington, DC 20037 Maryland Safe L'nergy Coalition P.O. Box 33111 Mr. Thomas N. Pritchett, Director, NRM Baltimore,MD 21k18 Calvert Cliffs Nuclear Power Plant 1650 Calvert Cliffs Parkway Mr. Loren F. Donatell Lusby, MD 20657 4702 NRC Technical Training Center 5700 Brainerd Road Resident inspector Chattanooga, TN 37411-4017 U.S. Nuclear Regulatory Commission P.O. Box 287 St. Leonard, MD 20685 Mr. Richard 1. McLean, Manager Nuclear Programs Power Plant Research Program Maryland Dept. of Naiaral Resources 580 Taylor Avenue Tawes State Office Building, B3 Annapolis,MD 21401 Regional Administraw, Region i U.S. Nuclear Regulatory Commission -
475 Allendt!e Road King of Prussia, PA 19406 9
-.w g-yw----
p y--
w-y y--