ML062260187

06, Acknowledgement of Response to Final Significance Determination Letter Dated 6/29/2006, for a White Finding and Notice of Violation (NRC IR 05000254/2006014). Quad Cities Nuclear Power Station, Unit 1

ML062260187
Person / Time
Site:	Quad Cities
Issue date:	08/11/2006
From:	Satorius M Division Reactor Projects III
To:	Crane C Exelon Generation Co, Exelon Nuclear
References
EA-06-112 IR-06-014
Download: ML062260187 (4)

See also: IR 05000254/2006014

Text

August 11, 2006

EA-06-112

Mr. Christopher M. Crane

President and Chief Nuclear Officer

Exelon Nuclear

Exelon Generation Company, LLC

Quad Cities Nuclear Power Station

4300 Winfield Road

Warrenville, IL 60555

SUBJECT: ACKNOWLEDGMENT OF RESPONSE TO FINAL SIGNIFICANCE

DETERMINATION LETTER DATED JUNE 29, 2006, FOR A WHITE FINDING

AND NOTICE OF VIOLATION (NRC INSPECTION REPORT

NO. 05000254/2006014), QUAD CITIES NUCLEAR POWER STATION, UNIT 1

Dear Mr. Crane:

The NRC acknowledges the receipt of your letter dated July 27, 2006, in response to the White

finding and Notice of Violation transmitted in NRC inspection report 05000254/2006014. In

your letter, you concurred with the violation and provided a rationale for its occurrence. You

indicated that the cause of the violation was the failure to correct the long-standing source of

main steam line vibrations. A contributing factor was a failure to recognize the design

limitations of the electromatic relief valve actuator design at extended power uprate conditions.

Your letter provided information about acoustic side branch (ASB) modifications which you

implemented to reduce main steam line vibrations by addressing the source of the vibrations

and modifications to improve electromatic relief valve (ERV) actuator performance. Your letter

also discussed additional causal factors related to organizational effectiveness and actions you

plan to take to address this area.

We have reviewed your response and considered whether it is necessary for us to conduct a

supplemental inspection in accordance with Inspection Procedure 95001 as prescribed by the

Reactor Oversight Program in response to a single White finding, since many of the technical

details related to the White finding were already inspected during either the Degraded ERV

Special Inspection or activities surrounding the installation of the above modifications for the

ASBs and the ERVs. We have concluded that it is still appropriate for us to conduct the

IP 95001 inspection. Accordingly, we will be scheduling an IP 95001 Supplemental Inspection

following the completion of your planned corrective actions, described in your letter as

scheduled for the end of 2006.

C. Crane -2-

If you have any questions regarding this letter, please contact Mr. Mark Ring, Chief, Reactor

Projects, Branch 1 at (630) 829-9703.

Sincerely,

/RA by Steve West Acting for/

Mark A. Satorius, Director

Division of Reactor Projects

Docket Nos. 50-254; 50-265;72-053

License Nos. DPR-29; DPR-30

cc w/encl: Site Vice President - Quad Cities Nuclear Power Station

Plant Manager - Quad Cities Nuclear Power Station

Regulatory Assurance Manager - Quad Cities Nuclear Power Station

Chief Operating Officer

Senior Vice President - Nuclear Services

Senior Vice President - Mid-West Regional

Operating Group

Vice President - Mid-West Operations Support

Vice President - Licensing and Regulatory Affairs

Director Licensing - Mid-West Regional

Operating Group

Manager Licensing - Dresden and Quad Cities

Senior Counsel, Nuclear, Mid-West Regional

Operating Group

Document Control Desk - Licensing

Vice President - Law and Regulatory Affairs

Mid American Energy Company

Assistant Attorney General

Illinois Emergency Management Agency

State Liaison Officer, State of Illinois

State Liaison Officer, State of Iowa

Chairman, Illinois Commerce Commission

D. Tubbs, Manager of Nuclear

MidAmerican Energy Company

C. Crane -2-

If you have any questions regarding this letter, please contact Mr. Mark Ring, Chief, Reactor

Projects, Branch 1 at (630) 829-9703.

Sincerely,

/RA by Steve West Acting for/

Mark A. Satorius, Director

Division of Reactor Projects

Docket Nos. 50-254; 50-265;72-053

License Nos. DPR-29; DPR-30

cc w/encl: Site Vice President - Quad Cities Nuclear Power Station

Plant Manager - Quad Cities Nuclear Power Station

Regulatory Assurance Manager - Quad Cities Nuclear Power Station

Chief Operating Officer

Senior Vice President - Nuclear Services

Senior Vice President - Mid-West Regional

Operating Group

Vice President - Mid-West Operations Support

Vice President - Licensing and Regulatory Affairs

Director Licensing - Mid-West Regional

Operating Group

Manager Licensing - Dresden and Quad Cities

Senior Counsel, Nuclear, Mid-West Regional

Operating Group

Document Control Desk - Licensing

Vice President - Law and Regulatory Affairs

Mid American Energy Company

Assistant Attorney General

Illinois Emergency Management Agency

State Liaison Officer, State of Illinois

State Liaison Officer, State of Iowa

Chairman, Illinois Commerce Commission

D. Tubbs, Manager of Nuclear

MidAmerican Energy Company

DOCUMENT NAME:E:\Filenet\ML062260187.wpd

G Publicly Available G Non-Publicly Available G Sensitive G Non-Sensitive

To receive a copy of this document, indicate in the concurrence box "C" = Copy without attach/encl "E" = Copy with attach/encl "N" = No copy

OFFICE RIII E RIII RIII RIII

NAME MRing:sls SWest for MSatorius

DATE 08/10/2006 08/11/2006

OFFICIAL RECORD COPY

C. Crane -3-

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