ML20052C954

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Trip Rept of 820408 Site Visit & 820409 Meeting W/Sargent & Lundy in Chicago,Il Re Applicant Drilling of Holes Through Concrete Elements.Evaluation Indicates No Unacceptable Degradation of Structural Parts.Attendee List Encl
ML20052C954
Person / Time
Site: LaSalle  Constellation icon.png
Issue date: 04/14/1982
From: Chan S, Lipinski R
Office of Nuclear Reactor Regulation
To: Schauer F
Office of Nuclear Reactor Regulation
Shared Package
ML20052C945 List:
References
NUDOCS 8205060135
Download: ML20052C954 (2)


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UNITED STATES j

NUCLEAR REGULATORY COMMISSION re WASHINGTON,0 C.20GES

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d APR 141532 MEMORANDUM FOR: Franz P. Schauer, CMef Structural Engineering Branch Division of Engineering i

THRU:

Dave Jeng, Section A Leader Structural Engineering Branc}h F

Division of Engineering FROM:

Romuald E. Lipinski and Sai P. Chan Structural Engineering Branch Division of Engineering

SUBJECT:

TRIP REPORT - VISIT TO LA SALLE PLANT AND MEETING ON HOLE-DRILLING AND CUT REBARS IN CONCRETE Inaccordancewithyourinstruction,wehisitedtheLaSallePlantatLaSalle County, Illinois on April 8,1982 and attended the meeting at Sargen Engineers, Chicago Illinois on April 9 1982.

to familiarize ours, elves with the genera,l design of the plant and to g sufficient infomation so as to fairly assess the applicant's practice cf r

drilling holes through concrete elements in response to the allegation mad a

by the Attorney General, State of Illinois.

At the plant site, we have idenfified and herified some groups of drilled drawings that the applicant submitted at the Marc at Bethesda.

We have also witnessed measurement and verification o dimensions to support the claim that the thickness of the roof slab of the off gas building is 12 inches.

On April 9,1982, a meeting was held at the office of Sargent and Lundy Engineers (S & L), Chicago, Illinois to discuss the of drilling and coring of holes and cutting rebars. program of documentation attached.

The attendance list is margins of the areas where drilling took place have been S & L offices we established the following: basis of the infomatio On the 1.

The roof of the off gas building is 12 inches thick, and 2.

The controls and engineering evaluation of the effect of drillings were such that there is a reasonable assurance that they will not result in unacceptable degradation of structural elements.

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I 2-Inhiewoftheaboheweareoftheopinionthattheallegationfiledbythe Attorney General of'the State of Illinois is not justified.

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R. E. Li,. !nski Structural Engineering Branch Division of Engineering S. P. Chan i

Structural Engineering Branch Division of Engineering

Enclosure:

Attendance List j

cc:

R. Vollmer D. Eisenhut f

J. Knight R. Tedesco A. Schwencer D. Jeng i

R. Shewmaker (I & E) 1 F. Hawkings (Reg. III)

A. Bournia 4

CONTACT:

S. P. Chan, SEB, X29534 J

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ENCLOSURE ATTENDANCE LIST APRIL 9, 1982 CHICAGO, ILLIN0IS NRC F. Hawkins Region III R. Lipinski NRR/SEB S. Chan NRR/SEB CEC M. J. Morris L. O. Del George C. W. Schroeder S&L T. Linglais S. M. Kazmi V. Reklaitis K. T. Kostal L. P. Dolder

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ENCLOSURE 2 ON pgstonW N

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