ML19277B230

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Responds to F Rinaldi 820309 Memo Re Soil Liquefaction at Facility.No Need to Consider Effects of Liquefaction on Category I Structures as Plant Fill Will Be Dewatered
ML19277B230
Person / Time
Site: Midland
Issue date: 03/30/1982
From: Lear G
Office of Nuclear Reactor Regulation
To: Kuo P
Office of Nuclear Reactor Regulation
References
NUDOCS 8204280556
Download: ML19277B230 (1)


Text

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DISTRIBUTI0f1 MAR 3 01932 Docket File 140s. 50-329/330 HGEB Reading f1EMORA!!DUM FOR:

P. T. Kuo, Section B Leader Structural Enqineering Cranch h'h Division of Engineering C.

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George Lear. Chief Hydrologic and Geotechnical Engineering P '.t!},.fSJ I',;

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SUBJECT:

SOIL LIOUEFt.CTIO'! AT l'IDLAf;D

- Ay, Reference F. Rinaldi's nemo dated March 9,1982 to Darl Hood, subject:

Sumary of February 23-26,1982 !!eeting on Remedial Actions for Structures on Plant Fill."

Item II. A in F. Rinal di's neno, requested that we determine if soil liquefaction is a credible event that would affect Midland's Category I structures.

In re,ponse, the following is provided:

Since the Midland Plant fill will be dewatered to El. 595' which is 15 feet below the elevation where loose sands with low bloucounts have been identified, there is no need for SED to consider the effects of liquefaction on " subject Category I structures."

1.'ith remrd to Item II.B, the geotechnical engineering staff has reviewed the soil springs used by the f.oplicant and has recorded the results of their review on a March 26, 1982 telephone record. Mr. Trank Rinaldi has been provided a copy of the telephone record and has also agreed to discuss the geotechnical engineering concern that renains for the appropriate soil sprinq to be used during the jacking loading condition on Thursday, April 1,1932 with the Consultants to both SEB and HGED.

E{igluisigned by George tm George Lear, Chief Hydrologic and Geotechnical Engineering Franch Division of Engineering cc:

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