ML19321A484

Lists Drawings & Sketches Submitted by Util Found to Be Partially Illegible.Independent Confirmatory Piping Analysis Requested by NRC Cannot Be Performed Until Better Copies Are Obtained

ML19321A484
Person / Time
Site:	Midland
Issue date:	07/07/1980
From:	Bates J EMVROCIE, ROCKWELL INTERNATIONAL CORP.
To:	Jackie Cook CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
References
80ETC-DFR-2881, NUDOCS 8007230507
Download: ML19321A484 (2)

Text

_- - _ . _ .

,' /1 5 0 - 3 42.

sa-or T.chadoer anoin.orine c.n ,

Energy Systems Group

'/ hr)( 33 P.o. Box 1449 \ / '-

Canoga Park.CA 91304 -

m ais41. "

Rockwell -

operated for U.s. Depanment d Energy International July 7,1980 80ETEC-DRF-2881 Mr. James W. Cook Consumers Power Company 1945 West Parnall Road Jackson, Michigan 49201 ,

Subject:

NRC Request for Information Concerning Staff's Independent Confirmatory Piping Analysis for Midland Plant Units 1 & 2 Ref.  : Letter and attachments from James W. Cook of Consumers Power Company to Mr. L. S. Rubenstein, Acting Chief Light Water Reactors, Branch No. 4, Division of Project Management, U.S.

Nuclear Regulatory Commission "NRC Request for Information Concerning Staff's Independent Confirmatory Piping Analysis",

June 12,1980.

Dear Mr. Cook:

In reviewing the referenced attachments it was found that many of the drawings and sketches were partially illegible due to the quality and/or reduced size of the copies. So much of the information concerning piping, supports, and component details is not discernible that it is impracticable to proceed with the confirmatory analysis until better copies are obtained.

Better quality copies are required of the following drawings:

l

1) Isometric - Decay Heat Removal and Core Flooding 1 System Unit 2.(Drawing #H-611)

A larger copy of this Isometric as well as a better i quality print would be helpful as in some areas there is a considerable amount of information in a relatively small area. I

2) Grinnel Support Details - S-2-611-1-3,-7,-8,-11,-12,-16, 19,-20,-21,-22,-23,-24,-26,-27,

, 32,-34,-35,-37,-40,-41 and -44,

3) Figure 4.1-1 of Specification #7220M-321 " Design Specification ,

For Nuclear Service Piping".

4) The legend for the computerized piping class summary sheets .2go\

(Sheet 1) was not included. (Drawing #7220-M-480(Q)) 27 5

'5) The Pipe Insulation Schedule for the piping of concern was not i10 /

included. (Drawing #7220-M-484(Q))

80072306 1

80ETEC-DRF-2881 Page 2 ETEC cannot proceed with the confirmatory analysis until legible copies of the above information are received.

Sincerely yours, yl_ -

J. O. B tes Energy Programs Office Energy Technology Engineering Center

/cu cc: Mr. R. J. Cosnak - NRC Mr. H. L. Brammer - NRC Mr. A. J. Cappucci Jr.- NRC Mr. D. Hood - NRC6/'

6 i,

4 l

4