ML19345C257

Responds to NRC 801010 Ltr Re Violations Noted in IE Insp Rept 50-461/80-20.Corrective Actions:Stop Work Order Issued 800924 for All Permanent Nonseismic Category 1 Structures & Components in Containment Bldg

ML19345C257
Person / Time
Site:	Clinton
Issue date:	11/10/1980
From:	Koch L ILLINOIS POWER CO.
To:	Fiorelli G NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III)
Shared Package
ML19345C252	List: ML19345C257
References
U-0201, U-201, NUDOCS 8012040247
Download: ML19345C257 (2)

Text

i

,9 V ILLIND/S POWER COMPANY U-0201

y .; Q37-80(11-10)-6 /'

< I 500 SOUTH 27TH STREET, DECATUR, ILLINOIS 62525 November 10, 1980 Mr. Gaston Fiorelli, Chief Reactor Construction and Engineering Support Branch '

U.S. Nuclear Regulatory Commission Region III 799 Roosevelt Road Glen Ellyn, Illinois 60137

Dear Mr. Fiorelli:

This is-in response to your Notice of Violation and Inspection Report Number-50-461/80-20. The item of noncompliance cited in this report states, in part:

" Contrary to the above, approximately 2,000 temporary attachments such as scaffold brackets, gussets, and plates have been welded to the drywell wall liner and the primary containment related liner without the controls required for safety-equipment. Weldments were performed without Traveler Documentation Control. QC inspection and NDE were not performed or documented."

On September 24, 1980 (approximately two weeks before your report),

an IP STOP WORK. order was issued for all permanent non-seismic Category I and temporary attachments to seismic Category I struc-tures and components in the Containment Building. Also, Region III was notified of a potential reportable deficiency per 10CFR50.55(e) on this date. A final report to Region III was issued October 24, 1980.

4 1 The constructor (Baldwin Associates) has been instructed to remove all inadequately documented temporary attachments from the drpwell liner in accordance with AWS requirements. Temporary attachments to the containment liner are being removed or are being suitably reworked and documented as minor permanent attachments in accordance with ASME requirements. The constructor is preparing weld maps of all existing non-safety-related welds to the carbon steel por-tion of the containment liner in order to ensure compliance with the foregoing. The. containment lir.ar contractor . 'CB&I) will be removing all temporary attachments to the stainless steel portion-3 of the containment February, 1981 liner, with an expected completion date of 4

4 180120408 N tov 17 sso

L .'-

U-0201 G,aston Fiore11i- 037-80(11-10)-6 s

, November 10, 1980 Page 2

-The constructor.has implemented new procedures to control future temporary attachments.to these structures. New welds to the con-tainment liner will be documented and shown on the weld maps.

Documentation for new attachments to the drywell liner will in-l clLde a location description. The new procedures ensure that the appropriate specifications, codes, and standards are met.

.The constructor's' removal or rework of existing temporary attach-ments to these structures is an extended process (due to con-struction use) for which a completion date cannot be readily given. However, the establishment of clear procedures, their implementation and quality verification will ensure that " full compliance" is achieved prior to turnover of the structures by.

the constructor.

I trust the above actions constitute an acceptable response and *

! will satisfactorily complete our corrective action.

, Sincerely,

.9'I/,f/*

v'L. J. hoch n

Vice President cc: Director-Quality Assurance H. H. Livermore', NRC Resident Inspector 1

J d

6 .

1 e

, - - - - . , - - -. - , , .