ML20140B746

Forwards Structural Engineering Branch SER Input Re FSAR Chapter 3 on Design of Category I Structures.Evaluation Will Be Completed Upon Submittal of Info Re Soil Remedial Actions & New site-specific Response Spectra

ML20140B746
Person / Time
Site:	Midland, 05000000
Issue date:	04/05/1982
From:	Knight J Office of Nuclear Reactor Regulation
To:	Tedesco R Office of Nuclear Reactor Regulation
Shared Package
ML19255C661	List: IA-85-602, Forwards Revised Schedule for ACRS Subcommittee on Midland Plant 820429 Meeting in Washington,Dc to Discuss Util Remedial Action Re Soils & Structural Settlement Issues. Related Info Encl IR 05000330/1977002 ML19255C660 ML20133D109 ML20140B741 ML20140B746 ML20140B751 ML20140B759 ML20140G820 ML20140G826 ML20140G835 ML20140G840 ML20140G846 ML20140G850 ML20140G856 ML20140G862 ML20140G868 ML20140G873 ML20140G878 ML20140G886 ML20140G891 ML20140G901 ML20140G906 ML20140G912 ML20140G916 ML20140G928 ML20140G933 ML20140G938 ML20140G942 ML20140G947 ML20140G951 ML20140G955 ML20140G961 ML20140G968 ML20140G973 ML20140G978 ML20140G985 ML20140G990 ML20140G996 ML20140H002 ML20140H008 ML20140H013 ML20140H020 ML20140H024 ML20140H028 ML20140H035 ML20140H040 ML20140H045 ML20140H052 ML20140H057 ... further results
References
FOIA-85-602 NUDOCS 8204210531
Download: ML20140B746 (2)

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APR 05 m i

_.I Docket Nos.: 50-329/330 l

i MEMORNiDUM FOR: Robert L. Tedesco, Assistant Director for Licensing Division of Licensing FROM:

James P. Knight, Assistant Director for Components & Structures Engineering Division of Engineering SU3 JECT:

SAFETY EVALUATION REPORT, MIDLAND 1 & 2 NPP

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Plant Name: Midland 1 & 2 NPP Docket Hos.: 50-329/330 Licensing Stage: FSAR Responsible Branch and Project Manager: LB-4, D. Hood /R. Hernan Requested Completion Date: April 6,1982 Review Status: Complete The FSAR submitted by the applicant has been reviewed and evaluated by the Structural Engineering Branch. Our sections of the safety evaluation report are enclosed. The design of Category I structures for this plant is not complete due to problems caused by soil conditions not meeting the original design specifications. The applicant has proposed remedial actions for the Auxiliary Building and Feedwater Isolation Valve Pits. Service Water Pump Structure, Borated Water Storage Tanks and Diesel Generator Building.

In addition, the seismic design response spectra proposed in the FSAR for this plant has been reassessed. A site specific response spectrum has been made i

for the Safe Shutdown Earthquake, while the Operating Basis Earthquake is kept at the original level. This change will require a Safety Margin Eval-uation of the Category I structures for this plant. The evaluation of the Category I structures related to the soil remedial actions is tied to a series of hearings before the Atomic Safety and Licensing Board. Therefore, the completion of the staff evaluation of Category I structure at the Midland NPP is controlled by the applicant's timely submittal of infomation requested by the staff related to the soil remedial actions and the new site specific response spectra. The enclosure was prepared by Frank Rinaldi of Section B of the Structural Engineering Branch.

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igomeS sbg James P. Knight Assistant Director g(

for Components & Structures Engineering 3 7 od,L Division of Engineering

Enclosure:

,j SER for Hidland 1 & 2 NPP

• SEE PREVIOUS CONCURRENCE

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CONTACT:

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