ML20039B760

Forwards Analysis of Buried Piping for Midland Plant,Units 1 & 2. Rept Demonstrates Piping Will Be Capable of Performing Safety Function Throughout Lifetime of Plant

ML20039B760
Person / Time
Site:	Midland
Issue date:	12/15/1981
From:	Jackie Cook CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	Harold Denton Office of Nuclear Reactor Regulation
Shared Package
ML20039B761	List: ML20039B760 ML20039B764 ML20039B767 ML20039B774 ML20039B779 ML20039B785 ML20039B790
References
15093, NUDOCS 8112230528
Download: ML20039B760 (2)

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C011SumBIS Power a. w coa Vice President - Projects, Engineering and Constructwn General offices: 1945 West Parnait Road, Jackson. MI 49201 * (517) 788 0453 CD December 15, 1981 g S DECElygg h DEC22199; )

b & n'wccn:l Harold R Denton, Director h t?

• O.E h/b 'j7 [r Office of Nuclear Reactor Regulation /

. Division of Licensing US Nuclear Regulatory Commission Washington, DC 20555 t' MIDLAND PROJECT

- MIDLAND DOCKET NOS 50-329, 50-330 UNDERGROUND PIPING CONCERNS FILE 0485.16 SERIAL 15093 ENLLOSURE: ANALYSIS OF BURIED PIPING FOR MIDLAND PLANT UNITS 1 AND 2-On October 6', 1981., we held a meeting with the NRC Staff to present to them a demonstration-type solution to resolve.the Staff concerns on underground piping. As a result of our discussions it became clear that the Staff needed additional and more detailed background information to support our solution.

Since the October 6,1981 meeting, we have continued to work with the Staf f on resolving the open issues on underground piping. The enclosure entitled

" Analysis af buried Piping for Midland Plant Units 1 and 2" provides background information to support our proposed demonstration solution and additional engineering information. Included in this report is the following information:

1. Southwest Research Institute pipe profile and ovality measurements. Of '

2. Seismic calculation results for the service water system (SWS).

3. Proposed future monutoring program for the SVS. /

4. Inservice inspection plans for the SWS.

5. Proposed resolution for the borated water storage tank pipelines and small diameter safety grade piping.

6. Answers to general concerns regarding the underground piping.

We believe that this report demonstrates that the piping will be capable of performing its safety functicn throughout the lifetime of the plant. We are 8112230528 811215 oc1281-0500a100 PDR ADOCK 05000329 4 PDR

. O 2 hopeful that a meeting can be held the first part of January 1982 to discuss the report.

/ a c7a/GvK JWC/WJC/dsb CC Atomic Safety and Licensing Appeal Board, w/o CBechhoefer, ASLB, w/a JBrammer, ETEC, w/a ACappucci, NRC, w/a

?f! Cherry, Esq, w/o -

FPCowan, ASLB, w/a RJCook, Midland Resident Inspector, w/o RSDecker, ASLB, w/a JHarbour, ASLB, w/a DSHood, NRC, w/a (2)

DFJudd, B&W, w/o JDKane, NRC, w/a FJKelley, Esq, w/o RBLandsman, NRC Region III, w/a WHMarshall, Esq, w/o W0tto, Army Corps of Engineers, w/a WDPaton, Esq, w/o i HSingh, Army Corps of Engineers, w/a BStamiris, w/o i

oc1281-0500a100

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