ML20002B619

Responds to NRC Ltr Re Violation Noted in IE Insp Rept 50-461/80-20.Corrective Action:Constructor Instructed to Remove Inadequately Documented Temporary Attachments from Drywall Liner

ML20002B619
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)
References
U-0201, U-201, NUDOCS 8012220154
Download: ML20002B619 (2)

Text

~ ~ '

'REGU.ATORY ngggET : .! COPY U-0201 ILLINDIS POWER COMPANY a n ~ g Q37-80(11-10)-6

! 500 SOUTH 27TH STREET, DECATUR, ILtJNOIS 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. Fior.elli:

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 liner without the controls required for safety-related 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.

The constructor (Baldwin Associates) has been instructed to remove all inadequately documented temporary attachments from the drywell liner in accordance with AWS requirements. Temporary attachments to the containment liner are being removed or are being suitably l 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-tien of the containment liner in order to ensure compliance with the foregoing. The containment liner contractor (CB&I) will be removing all temporary attachments to the stainless steel portion I of the containment liner, with an expected completion date of February, 1981.

4 .

a U-0201 Gaston Fiorelli Q37-80 (11-10 ) -6 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-clude 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,

,af/'

,. ( /T

. J. Koch Vice President cc: Director-Quality Assurance H. H. Livermore, NRC Resident Inspector l

l I

l i

{

l l

l l

m.- . .

. . . - - . _ _ . . _ ~ . _ _ _ . . ~ . .