L-11-089, Reply to Request for Additional Information for the Review License Renewal Application

Reply to Request for Additional Information for the Review License Renewal Application

ML110880059
Person / Time
Site:	Davis Besse
Issue date:	03/23/2011
From:	Allen B FirstEnergy Nuclear Operating Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
L-11-089, TAC ME4640
Download: ML110880059 (6)

Text

FENOC 5501 North State Route 2 FirstEnergyNuclear Operating Company Oak Harbor,Ohio 43449 Barry S. Allen 419-321-7676 Vice President- Nuclear Fax: 419-321-7582 March 23, 2011 L-1 1-089 10 CFR 54 ATTN: Document Control Desk U. S. Nuclear Regulatory Commission Washington, DC 20555-0001

SUBJECT:

Davis-Besse Nuclear Power Station, Unit No. 1 Docket No. 50-346, License Number NPF-3 Reply to Request for Additional Information for the Review of the Davis-Besse Nuclear Power Station, Unit No. 1, License Renewal Application (TAC No. ME4640), Section 2.4 By letter dated August 27, 2010, (Agencywide Documents Access and Management System (ADAMS) Accession No. ML102450565), FirstEnergy Nuclear Operating Company (FENOC) submitted an application pursuant to Title 10 of the Code of Federal Regulations, Part 54 for renewal of Operating License NPF-3 for the Davis-Besse Nuclear Power Station (DBNPS), Unit Number 1. By letter dated February 28, 2011 (ADAMS Accession No. ML110420597), the Nuclear Regulatory Commission (NRC) requested additional information to complete its review of the License Renewal Application (LRA).

The Attachment provides the FENOC reply to the NRC request for additional information.

The NRC request is shown in bold text followed by the FENOC response.

There are no regulatory commitments contained in this letter. If there are any questions or if additional information is required, please contact Mr. Clifford I. Custer, Fleet License Renewal Project Manager, at 724-682-7139.

I declare under penalty of perjury that the foregoing is true and correct. Executed on March tj_, 2011.

Sincerely, Barry S. Allen 4o3S vIrUfL

Davis-Besse Nuclear Power Station, Unit No. 1 L-1 1-089 Page 2

Attachment:

Reply to Request for Additional Information for the Review of the Davis-Besse Nuclear Power Station, Unit No. 1, License Renewal Application, Sections 2.4.2, 2.4.3, 2.4.5, 2.4.9, and 2.4.11 cc: NRC DLR Project Manager NRC Region III Administrator cc: w/o Attachment or Enclosure NRC DLR Director NRR DORL Project Manager NRC Resident Inspector Utility Radiological Safety Board

Attachment L-1 1-089 Reply to Request for Additional Information for the Review of the Davis-Besse Nuclear Power Station, Unit No. 1, License Renewal Application, Sections 2.4.2, 2.4.3, 2.4.5, 2.4.9, and 2.4.11 Page 1 of 4 Section 2.4.2 RAI 2.4.2-1 Based on the staff's review of Section 2.4.2, "Auxiliary Building," and Table 2.4-2 of the license renewal application (LRA), it is not clear if the following components have been included within the scope of license renewal and subject to an aging management review (AMR):

a) Cable trays, electrical panels, electrical cabinets b) Instrument panels and racks c) Fire barrier coatings and wraps If the components are not included due to oversight, please discuss whether these components are within the scope of license renewal and subject to an AMR.

If they are excluded from the scope of license renewal, please provide the basis for their exclusion.

RESPONSE RAI 2.4.2-1 Cable trays, electrical panels, electrical cabinets, instrument panels and racks, and fire barrier coatings (i.e., fireproofing) and wraps for the Auxiliary Building are evaluated as bulk commodities in LRA Section 2.4.13. As provided in LRA Section 2.4.13, these bulk commodities are within the scope of license renewal and subject to an aging management review.

Section 2.4.3 RAI 2.4.3-1 Based on the staffs review of Section 2.4.3, "Intake Structure, Forebay, and Service Water Discharge Structure," and Table 2.4-3 of the LRA, it is not clear if the following components have been included within the scope of license renewal and subject to an AMR:

a) Water stops b) Fire barrier coatings and wraps

Attachment L-1 1-089 Page 2 of 4 c) Instrument panels and racks If the components are not included due to oversight, please discuss whether these components are within the scope of license renewal and subject to an AMR.

If they are excluded from the scope of license renewal, please provide the basis for their exclusion.

RESPONSE RAI 2.4.3-1 Water stops, fire wraps, and instrument panels and racks for the Intake Structure, Forebay, and Service Water Discharge Structure are evaluated as bulk commodities in LRA Section 2.4.13. As provided in LRA Section 2.4.13, these bulk commodities are within the scope of license renewal and subject to an aging management review.

There are no fire barrier coatings (i.e., fireproofing) within the scope of license renewal that are associated with the Intake Structure, Forebay, or Service Water Discharge Structure.

Section 2.4.5 RAI 2.4.5-1 Based on the staff s review of Section 2.4.5, "Miscellaneous Diesel Generator Building," and Table 2.4-5 of the LRA, it is not clear if the following components have been included within the scope of license renewal and subject to an AMR:

a) Compressible joints and seals b) Fire barrier coatings and wraps If the components are not included due to oversight, please discuss whether these components are within the scope of license renewal and subject to an AMR.

If they are excluded from the scope of license renewal, please provide the basis for their exclusion.

RESPONSE RAI 2.4.5-1 Compressible joints and seals for the Miscellaneous Diesel Generator Building are evaluated as bulk commodities in LRA Section 2.4.13. As provided in LRA Section 2.4.13, these bulk commodities are within the scope of license renewal and subject to an aging management review.

There are no fire barrier coatings (i.e., fireproofing) and wraps within the scope of license renewal that are associated with the Miscellaneous Diesel Generator Building.

Attachment L-11-089 Page 3 of 4 Section 2.4.9 RAI 2.4.9-1 Based on the staff's review of Section 2.4.9, "Station Blackout Diesel Generator Building," serves as the alternate AC source for station blackout, and Table 2.4-9 of the LRA, it is not clear if the following components have been included within the scope of license renewal and subject to an AMR:

a) Compressible joints and seals b) Fire barrier coatings and wraps If the components are not included due to oversight, please discuss whether these components are within the scope of license renewal and subject to an AMR.

If they are excluded from the scope of license renewal, please provide the basis for their exclusion.

RESPONSE RAI 2.4.9-1 Compressible joints and seals for the Station Blackout Diesel Generator Building are evaluated as bulk commodities in LRA Section 2.4.13. As provided in LRA Section 2.4.13, these bulk commodities are within the scope of license renewal and subject to an aging management review.

There are no fire barrier coatings (i.e., fireproofing) and wraps within the scope of license renewal that are associated with the Station Blackout Diesel Generator Building.

The Station Blackout Diesel Generator was installed to meet the Station Blackout Rule.

Since the Station Blackout Diesel Generator was installed after completion of the Appendix R analysis, no credit for the diesel generator was taken in the Fire Hazard Analysis Report. Therefore, there are no fire barrier coatings (i.e., fireproofing) or wraps associated with the Station Blackout Diesel Generator Building that perform an intended function for the fire protection regulated event.

Section 2.4.11 RAI 2.4.11-1 Based on the staff's review of Section 2.4.11, "Water Treatment Building," and Table 2.4-11 of the LRA, it is not clear if the following components have been included within the scope of license renewal and subject to an AMR:

a) Caulking and sealant b) Compressible joints and seals

Attachment L-1 1-089 Page 4 of 4 c) Fire barrier coatings and wraps If the components are not included due to oversight, please discuss whether these components are within the scope of license renewal and subject to an AMR.

If they are excluded from the scope of license renewal, please provide the basis for their exclusion.

RESPONSE RAI 2.4.11-1 Caulking and sealant are evaluated as part of the compressible joints and seals commodities. Compressible joints and seals for the Water Treatment Building are evaluated as bulk commodities in LRA Section 2.4.13. As provided in LRA Section 2.4.13, these bulk commodities are within the scope of license renewal and subject to an aging management review.

There are no fire barrier coatings (i.e., fireproofing) or wraps that are associated with the Water Treatment Building.