ML20101T993

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Forwards Evaluation of Reserve Shutdown Absorber Matl & Response to NRC Questions Raised During 850115 Meeting in Dallas,Tx
ML20101T993
Person / Time
Site: Fort Saint Vrain Xcel Energy icon.png
Issue date: 01/28/1985
From: Lee O
PUBLIC SERVICE CO. OF COLORADO
To: Johnson E
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION IV)
Shared Package
ML20101T996 List:
References
P-85027, NUDOCS 8502060502
Download: ML20101T993 (3)


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k PUBLIC SERVICE COMPANY OF COLORADO P.

O. BOX 840

DENVER, COLORADO 80208 January 28, 1985 OSCAR R. LEE Fort St. Vrain Unit No. 1 v.c e a c.* **

P-85027 33@20MM %

Regional Administrator J

-Region IV Nuclear Regulatory Commission

(

FEB - 1 E 611 Ryan Plaza Drive, Suite 1000

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3 Arlington, Texas 76011 Attn: Mr. Eric H. Johnson DOCKET NO. 50-267

SUBJECT:

Report on the Reserve Shutdown Absorber Material

REFERENCES:

1) NRC Letter, H.R. Denton to R.F. Walker, dated 10-16-84 (G-84392)
2) PSC Letter, 0.R. Lee to R.D. Martin dated 01-04-85 (P-85003)
3) NRC Letter, R.D. Martin to 0.R. Lee, dated 1-17-85(G-85024)

Dear Mr. Johnson:

s Attached is Public Service Company of Colorado's report on the evaluation of the reserve shutdown absorber material.

contains the overall evaluation of the material and includes discussions concerning causes and resolutions of' the problem.

Attachments 2-through 5 are.in response to questions raised by the Region IV Staff during the January 15, 1985 meeting in Dallas, Texas. contains a tabular comparison'of purchase specifications for the B4C material manufactured by Union Carbide Corporation (UCC) and Advanced Refractory Technologies (ART). Specifications 12-D-1, Revisions B and C are, respectively, the specifications for the original UCC absorber material.and the material currently in the Fort

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  • 1 P-85027_

Page 2 St. Vrain warehousing system. Specification 12-D-14 is the purchase specification for the new absorber material presently being manufactured by ART. contains copies of-Purchase Specifications _12-D-1, Revision B and 12-D-14 for your use in evaluating the old and new material. Attachment 4 is in response to a question posed in the Dallas meeting concerning the adequacy of the

' hopper' drop test surveillance. At.tachment 5 is in response to a request to submit a report on the blending of the absorber material manufactured by ART that is presently-stored in the Fort St. Vrain warehouse.

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The attachments toithis letter are intended to answer-'all questions and resolve all open items concerning the reserve shutdown absorber material.

If you have _ any.further questions or require further information or data, please contact Mr. M. H. Holmes at (303) 571-8409.

Very truly yours, db

0. R. Lee, Vice President Electric Production ORL/LMM:pa Attachments i

cc: Jim Miller (NRC) - 2 copies LANL - I copy d

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9 ATTACHMENT 1 Reserve Shutdown Absorber Material Evaluation 4