ML17326A699
| ML17326A699 | |
| Person / Time | |
|---|---|
| Site: | Cook  |
| Issue date: | 07/15/1980 |
| From: | Hunter R INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| AEP:NRC:00382A, IEB-80-05, IEB-80-5, NUDOCS 8007300252 | |
| Download: ML17326A699 (4) | |
Text
INDIANA L MICHIGAN ELECTRIC COMPANY P. O. BOX 18 BOWLING GREEN STATION NEW YORK, N. Y. 10004 July 15 1980 AEP:NRC:00382A Donald C.'ook Nuclear Plant Unit Nos.
1 and 2
Docket Nos.
50-315 and 50-316 License Nos.
SUBJECT:
VACUUM CONDITION RESULTING IN DAMAGE TO CVCS HOLDUP TANKS Mr. James G. Keppler, Director Office of Inspection and Enforcement Region III U.S. Nuclear Regulatory Commission 799 Roosevelt Road Glen Ellyn, Illinois 60137
Dear Mr. Keppler:
This letter corrects a typographical error made in transcribing data to Table I in the attachment to our response to IE Bulletin 80-05 which was sent to you on June 13, 1980.
The existing protective measure for the Waste Disposal System Spent Resin Storage Tank should have been listed as Type "A", not "B",in the Table, since this tank is not vented to the atmosphere but is capable of withstanding full vacuum conditions.
Consequently, an amended Table I, including this correction, is attached to this letter for replacement in the original response.
Very tr ly yours, PM/emc ttachment
. 8 nter Vice President cc:
R.
C. Callen C. Charnoff R. S. Hunter R.
W. Jurgensen John E. Dolan D. V. Shaller - Bridgman 8 0 0 vs 0025 oIo(X
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TABLE 1 SYSTEMS AND COMPOrtENTS EXAMINED SYSTEM Reactor Coolant GVGS - Letdown and Charging GVCS - Boron Makeup CVCS - Holdup GVGS - Boron Recovery Maste Disposal EGGS TANK OR COMPONENT Pressurizer Relief Tank Volume Control Tank Boric Acid Storage Tanks CVCS Holup Tanks Boric A'cid Evaporator Monitor Tanks Reactor Coolant Drain Tank Waste Holdup Tanks Radwaste Evaporator Sump Tanks Spent Resin Storage Tank Refueling Water Storage Tank (RWST)
EXISTING PROTECTIVE MEASURES CKD A
B A
A A
B 5 E
EXISTING PROTECTIVE MEASURES A - Tanks capable of withstanding full'acuum.conditions.
If B - Tanks vented to atmosphere.
C - Tanks capable of withstanding only partial vacuum conditions.
D - Tanks have a normal gas supply from the Gaseous Waste Disposal System Vent Header, an alternate cove~ gas supply from the Reactor Gas Systems-Nitrogen Supply Manifold, a low pressure
- alarm, and an interlock to trip the CVCS holdup tanks recirculation pump on extreme low tank vent head pressure.
E - Tank (located outside) has adequate protection from freezing the fluid
. contained within the tank.