ML20049H490

Advises That NRC Concurs W/Util Plans to Activate Freezewall,Subj to Successful Audit by NRC Regional Ofc of Implementation Procedures for Excavation & Monitoring

ML20049H490
Person / Time
Site:	Midland
Issue date:	02/12/1982
From:	Tedesco R Office of Nuclear Reactor Regulation
To:	Jackie Cook CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
References
ISSUANCES-OL, ISSUANCES-OM, NUDOCS 8203030148
Download: ML20049H490 (4)

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Vice President

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Subject:

Staff Concurrence for Activation of Freezewall My letter of tiovenber 24, 1981 expressed NRC Staff concurrence for installation of freezewall hordware in preparTtion for the underpinning planned for the Ilidland Auxiliary building and Feedwater Isolation Valve Pits. However, that letter noted that Staff concurrence did not include activation since the effects of operation of the freezewall involved submittal of additional information.

Your letter of January 6,1982 described the neasures planned for the protection of underground utilities and structures due to the effects of ground heave and resettienent, and the associated monitoring progran. Other information was provided in your letters of November 16 and tiovember 24, 1981 and in the hearing testiraony of your consultant, J. P. Gould.

This information was discussed with the NRC Staff during a aceting on January 20, 1982 and during the underpinning design audit of February 3-5, 1962.

Your letter of January 6,1981 proposes to eliuinate the inducer.ient of any stresses to the conduits and piping because of heaving by excavating the soil directly beneath affected utilitics within the projected area of influence of the freezewall before ground freezing begins. The tiRC Staff agrees that this proposed solution would eliminate the effect of ground heaving on involved utilities and is acceptable.

The Staff review has also identified that it may be several months. Once the thawing begins before recompression of soils is completed and long tern foundation support for the piping is assured.

Because of this concern, you have cor.laitted to demonstrate to the NRC Staff's satisfaction that recompression of the foundation soils beneath the piping has been conpleted before backfilling the excavation.

Our concurrence is contingent upon the successful audit by the hRC kegional Of fice of the impler.:entation proceoures for excavation and monitoring. We are advised that Region Ill plans this audit in the near future and prior to activa-tion of the freezewall.

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.wn pgg, 2 t93 Staff concurrence is further discussed in the testimony of Mr. Joseph Kane regarding the effects of foundation support for seismic Category I underground piping. This testimony will be discussed curing the O!l OL hearing session scheduled to begin February 16. 1982.

On the basis of the information providea and your connitr.ent to monitor for an acceptable period for recompression ef fects, and subject to the above audit, the Staff concurs with your plans to activate the freezewall.

Sincerely.

Ro ert L. Tedesco. Assistant Director for Licensing Division of Licensing cc: See next page DISTRIBUTION Docket File LB#4 reading file DEisenhut/RPurple EAdensam DHood MDuncan SHanauer RTedesco RVollmer JKramer RMattson RHartfield, MPA RLandsman JKane ACappucci

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DLAND Nr. A W. Cook Vice President Consumers Power Conpany 1945 West Parnall Road Jackson, Michigan 49201 cc:

Michael I. Miller, Esq.

Mr. Don van Farrowe, Chief Ronald G. Zamarin, Esq.

Division of Radiological Health Alan S. Farnell, Esq.

Department of Public Health Isham, Lincoln & Beale P.O. Box 33035 Suite 4200 Lansing, Michigan 48909 1 First National Plaza

Chicago, Illinois 60603 William J. Scanlon, Esq.

2034 Pauline Boulevard James E. Brunner, Esq.

Ann Arbor, Michigan 48103 Consumers Power Conpany 212 West Michigan Avenue U.S. Nuclear Regulatory Conmission Jackson, Michigan 49201 Resident Inspectors Office Route 7 Myron M. Cherry, Esq.

Midland, Michigan 48640 1 IBM Plaza Chicago, Illinois 60611 Ms. Barbara Stamiris 5795 N. River Ms. Mary Sinclair Freeland, Michigan 48623 5711 Summerset Drive Midland, Michigan 48640 Mr. Paul A. Perry, Secretary Consumers Power Company Stewart H. Freeman 212 W. Michigan Avenue Assistant Attorney General Jackson, Michigan 49201 State of Michigan Environmental Protection Division Mr. Walt Apley 720 Law Building c/o Mr. Max Clausen Lansing, Michigan 48913 Battelle Pacific North West Labs (PNWL)

Battelle Blvd.

Mr. Wendell Marshall SIGMA IV Building Route 10 Richland, Washington 99352 Midland, Michigan 48640 Mr. I. Charak, Manager Mr. Roger W. Huston NRC Assistance Project Suite 220 Argonne National Laboratory 7910 Woodmont Avenue 9700 South Cass Avenue Bethesda, Maryland 20814 Argonne, Illinois 60439 Mr. R. B. Borsum James G. Keppler, Regional Administrator Nuclear Power Generation Division U.S. Nuclear Regulatory Commission, I

Babcock & Wilcox Region III l

7910 Woodmont Avenue, Suite 220 799 Roosevelt Rcad Bethesda, Maryland 20814 Glen Ellyn, Illinois 60137 Mr. Steve Gadler 2120 Carter Avenue St. Paul, Minnesota 55108

N Mr. J. W. Cook cc:

Commander, Naval Surface Weapons Center ATTN:

P. C. Huang White Oak Silver Spring, Maryland 20910 Mr. L. J. Auge, Manager Facility Design Engineering Energy Technology Engineering Center P.O. Box 1449 Canoga Park, California 91304 Mr. Neil Gehring U.S. Corps of Engineers NCEED - T 7th Floor 477 Mic.higan Avenue Detroit, Michigan 48226 Charles Bechhoefer, Esq.

Atomic Safety & Licensing Board U.S. Nuclear Regulatory Commission Washington, D. C.

20555 Mr. Ralph S. Decker Atomic Safety & Licensing Board U.S. Nuclear Regulatory Commission Washington, D. C.

20555 Dr. Frederick P. Cowan Apt. B-125 6125 N. Verde Trail Boca Raton, Florida 33433 Jerry Harbour, Esq.

Atomic Safety and Licensing Board U.S. Nuclear Regulatory Commission Washington, D. C.

20555 Gevtechnical Engineers, Inc.

ATTN:

Dr. Steve J. Poulos 1017 Main Street Winchester, Massachusetts 01890 l

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