ML20065B517

Discusses Independent Assessment of Auxiliary Bldg Underpinning Work on Piers W12 & E12.Based on Observations & Findings,Assessment Team of Opinion That Addl Piers Could Be Released for Const

ML20065B517
Person / Time
Site:	Midland
Issue date:	02/14/1983
From:	Lucks A STONE & WEBSTER, INC.
To:	James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
References
MPS-8, NUDOCS 8302230157
Download: ML20065B517 (2)

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t P.O. dox 2325. Boston. MASSACHUSETTS 02107 gg g JEP I ML I OL FILL 1r&P Mr. J. G. Keppler February 14, 1983 Administrator, Region III J.O. NO. 14358 U.S. Nuclear Regulatory Commission MPS-8 799 Roosevelt Road Glen Ellyn, IL 60137 RE: DOCKET NO. 50-329/330 MIDLAND PLANT - UNITS 1 AND 2 INDEPENDENT ASSESSMENT OF AUXILIARY BUILDING UNDERPINNING ASSESSMENT OF WORK ON PIERS W12'AND E12-As of February 11, 1983 the Stone & Webster - Parsons Brinckerhoff Assessment Team nas observed the excavation, placing of reinforcement, and concreting of underpinning pier'W12, and the excavation, and placing of reinforcement.for underpinning pier E12. In addition, the Assessment Team has revicwed the' drawings; ' procedures and other documents pertaining to the underpinning work and has observed the performance of the Quality Assurance and Quality Control Organizations during the pro-gress of the work. , ,

During the period that the Assessment Team' has' been on site, daily meetings have been held with Construction, quality and Engineering personnel to obtain additional information and discuss observations.

The Assessment Team has issued twenty Weekly Reports to the U.S.

Nuclear Regulatory Commission. These reports have described the activities of the Assessment Team and summarized their observacions and findings.

The Assessment Team has issued a total of five Nonconformance Identification Reports. Four of these Nonconformance Identification Reports have been l closed out to the satisfaction of the Assessment Team. The remaining open Nonconformance Identification Report was issued on February 10, 1983 and the Assessment Team feels that it can be closed out in the near future without impacting the progress of'thefu'nderpinning.

The underpinning work is being performed in accordance with the construction and quality procedures. As the work has progressed. the procedures have been modified based upon experience gained during the construction of l

piers W12 and E12. The Assessment Team feels that these minor changes are appropriate and will have a positive effect on the quality of the under-pinning work.

8302230157 830214 DR ADOCK 05000329 FEB 15y PDR 39

-- . , 5; n, 2 February 14, 1983 JGK Based upon these observations and findings,-the Assessment Team is of the opinion that additional piers could.be released for construction. This will bsnefit.the quality of the work by allowing the Contractor to main-tain the di:xperienced labor : teams from piers W12' and E12.-

If you have any questions, please contact me at (617) 589-2067.

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A.S.k.ucks Project Manager i i

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