ML19250A614
| ML19250A614 | |
| Person / Time | |
|---|---|
| Site: | La Crosse File:Dairyland Power Cooperative icon.png |
| Issue date: | 10/04/1979 |
| From: | Linder F DAIRYLAND POWER COOPERATIVE |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| LAC-6543, NUDOCS 7910240071 | |
| Download: ML19250A614 (2) | |
Text
s IRAIItYLAND I*0 WEIT C001*EIRATIVE Ea G,ona, Onconaa 54601 October 4, 1979 In reply, please refer to LAC-6543 DOCKET NO. 50-409 Mr. James G. Keppler Regional Director U.
S. Nuclear Regulatory Commission Directorate of Regulatory Operations Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137
SUBJECT:
DAIRYLAND POWER COOPERATIVE LA CROSSE BOILING WATER REACTOR (LACBWR)
PROVISIONAL OPERATING LICENSE NO. DPR-45 IE BULLETIN NO. 79 SEISMIC ANALYSES FOR AS-BUILT SAFETY RELATED PIPING SYSTEMS
Reference:
(1)
NRC Letter, Keppler to Linder, dated July 2, 1979; Revision 1 dated July 18, 1979; with Supplement 1 dated August 15, 1979 and Supplement 2 dated September 7, 1979.
(2)
DPC Letter, LAC-6492, Linder to Keppler, dated September 5, 1979.
Dear Mr. Keppler:
In response to Item 2 of the subject bulletin, the following infor-mation is presented:
"..... inspect one system in e. h set of redundant systems...."
LACBWR has no redundant piping systems which are normally accessible during operation, and therefore none were inspected.
"..... inspect...all nonredundant systems....."
All safety related piping 2 inches and greater in diameter in safety related systems has been inspected.
The results of the inspection have been compared to the as-built drawings and no discrepancies nor deviations from the as-built drawings exist.
Included in the inspectionjwere pipe run geometry, i.e.,
lengths of pipe runs, orientation of pipe appurtenances and attachments, pipe L 1202 256 0102400]
Mr. James G. Keppler LAC-6543 Regional Director October 4, 1979 location, and clearances through floors and walls.
Pipe supports, design, location, function, and settings were verified to be in accordance alth the design drawings.
There are no pipe (seismic) restraints, designed as such, installed on LACBWR piping systems.
No piping, within the context of this bulletin, is embedded.
All valves, 2 inches and greater, in subject systems, were verified as to their locations in the systems, and are in accordance with the design drawings.
Valve operator orientation was determined and weights for all valves (including operators when applicable) were obtained and recorded.
All of the above information will be utilized in the seismic analysis input information in accor?.ance with the commitment in Reference 2.
If there are any questions regarding this sabmittal, please contact us.
Very truly yours, DAIRYLAND POWER COOPERATIVE Frank Linder, General Manager FL: HAT:af Director of the Office of Inspection cc:
and Enforcement Office of Nuclear Reactor Regulation Washington, D. C.
20555 Director of the Division of Operating Reactors Office of Nuclear Reactor Regulation Washington, D. C.
20555 1202 257