L-80-233, Forwards Response to IE Bulletin 80-11, Masonry Wall Design. Identification of safety-related & nonsafety- Related Components Attached to or in Close Proximity to Masonry Walls Will Be Completed by 801001
| ML17208A883 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 07/24/1980 |
| From: | Robert E. Uhrig FLORIDA POWER & LIGHT CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| IEB-80-11, L-80-233, NUDOCS 8008110073 | |
| Download: ML17208A883 (5) | |
Text
P.O. BOX 529100 MIAMI,FL 33152 P
FLORIDAPOWER & LIGHTCOMPANY July 24, 1980 L-80-233 Offi Mr. James P. O'Reilly, Director R
ice of Inspection and Enforcement egion II U. S. Nuclear Regulatory Commission 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303 Dear Mr. O'Reilly Re:
RII:JPO 50-335 IE Bulletin 80-11 In response to the subject bulletin, the attached t'o d i o
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16 1980 esponse to this bulletin, the detailed will be submitted by October 1, 1980.
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in paragraph 1 is not corn Very truly yours, Robert E. Uhrig Vice President Advanced Systems 5 Technology REU/PLP/pa cc:
Harold F. Reis, Esquire Qi 8ICIALCOP%'.
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PEOPLE... SERVING PEOPLE
ATTACHMENT Re.
RII:JPO 50-335 NRC BULLETIN 80-11 MASONRY WALL DESIGN Florida Power and Light Company has instituted a field inspection program and design re-evaluation program to confirm the adequacy of the existing masonry wall design at the St. Lucie Unit Pl as requested by NRC Bulletin 80-11, Hay 8, 1980, Masonry Wall Design".
The following initial response addresses items 1, 2a and 3 respectively as requested by the subject bul-letin.
Implementation of the subject inspection and re-evaluation program will follow the milestone dates as established on the attached schedule of
~ implementation.
Res onse 1
~
Review of the St. Lucie Unit 81 Nuclear Power plant documents indicate that there are a total of 192 masonry walls of which 96 are seismically designed and 96 are non-seismically designed.
It is anticipated that identifica-tion of safety-related and non-safety-related components attached to or in the proximity of masonry walls will be completed by October 1, 1980.
Res onse 2A A prioritized program of field inspections and re-evaluation of design ade-quacy has been established and is bei ngimplemented as follows:
(1)
Perform field surveys oi'll masonry walls as identified in item 1 above, listing all systems and equipment, both safety-related and non-safety-related, associated with these masonry walls.
First priority will be given to those masonry walls which have been indicated as being non-seismically designed And are lo-cated in areas near, or have attachments from, safety related com'-
ponents.
(2}
Second priority will be given to those seismically designed walls in high radiation or other limited access areas.
(3)
Third priority will be given to those seismically designed walls in accessible areas.
(4)
Fourth priority will be given to those non-seismically designed walls remaining to be inspected.
The program of masonry wall re-evaluations will be performed concurrent with the field inspection program as field inspection data become available.
priority within each of the four groups will be placed on safety-related piping 2-> inches or greater in diameter, piping with support loads due to thermal expansion greater than 100 pounds, safety related equipment weighing 100 pounds or greater and the safety significance of the potentially affected system.
Res onse Item 3 Justification for the re-evaluation criteria will be submitted with the re-evaluation report within 180 days of the date of the Bulletin received.
Justifications will be based on 'reference to effective codes and established standards of practive related to concrete and masonry design typically used throughout the industry.
It is anticipated that such justification will be considered appropriate and a test program will not be necessary.
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STATE OF FLORIDA
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COUNTY OF DADE
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ss A-D. Schmidt being first duly swoxn, deposes and says:
That he is Vice President Light Company, the herein; t
I ilof Florida Power 6
That he has executed the foregoing document; that the state-ments made in this said document are true and correct to the best of his knowledge, information, and belief, and that he is authorized to execute 'the document on behalf of said A. D. Schmidt
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Subscribed and sworn to before me this cay o.
NOTARY PUBLIC, i and for the County of Dade, State of Florida l4tay PublIc, State of Rarida at Large My Conmi~oa Expires October 30, tgg3 My COmmiSSiOn eXpireS-eondcd'hru Vay,afd Bend ag A'gency