ML15299A143

Davis-Besse, Unit 1 - Additional Information for the Advisory Committee on Reactor Safeaquards Review of the License Renewal Application, Including Enclosure a, Bechtel Affidavit

ML15299A143
Person / Time
Site:	Davis Besse
Issue date:	10/19/2015
From:	Boles B D FirstEnergy Nuclear Operating Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
Shared Package
ML15299A142	List: L-15-328, Enclosure B, Bechtel Report No. 25593-000-G83-GEG-00016-000, Effect of Laminar Cracks on Splice Capacity of No. 11 Bars Based on Testing Conducted at Purdue University and University of Kansas for Davis-Besse Shield Building. Part 7 of 7 ML15299A143 ML15299A144 ML15299A146 ML15299A147 ML15299A148 ML15299A149 ML15299A150
References
L-15-328
Download: ML15299A143 (7)

Text

in accordance with 10 CFR 2.390_______ Upon .removal of Enclosure C, this letter can be decontrolled. 50 ot tt otFirst Energy Nuclear Operating Company Oak Harbor, Ohio 43449Brian D. Boles 419-321-7676Vice President, Fax: 419-321-7582NuclearOctober 19, 2015-L-1 5-328 10 CFR 54ATTN: Document Control DeskU.S. Nuclear Regulatory CommissionWashington, DC 20555-0001

SUBJECT:

Davis-Besse Nuclear Power Station, Unit No. IDocket No. 50-346, License Number NPF-3Additional Information for the Advisory Committee on Reactor Safeaquards Reviewof the Davis-Besse..Nuclear Power Station. Unit No. 1. License Renewal Application(TAC No. ME4640)By letter dated August 27, 2010 (Agencywide Documents Access and ManagementSystem (ADAMS) Accession No. ML1 02450565), FirstEnergy Nuclear OperatingCompany (FENOC) submitted an application pursuant to Title 10 of the Code of FederalRegulations, Part 54 for renewal of Operating License NPF-3 for the Davis-BesseNuclear Power Station, Unit No. 1 (Davis-Besse). Following the September 23, 2015meeting between FENOC and the Advisory Committee on Reactor Safeguards (ACRS)License Renewal Subcommittee, the members requested additional information toclarify statements made by FENOC during the meeting and to complete their review ofthe License Renewal Application (LRA).The following information is provided to clarify the ACRS Subcommittee meetingdiscussion regarding the Davis-Besse Shield Building crack propagation marginstatements. The 100-foot crack propagation margin value was derived using ShieldBuilding Region 4 margin value in percent of area cracked (i.e., 20% margin) multipliedby the circumference of the Shield Building (i.e., 452 feet), which results in:"0.20 x 452 feet = approximately 100 feetThe supplemental information provided by FENOC letter dated October 6, 2015(ML15280A287), provides a more detailed description regarding the determination ofthe area for crack propagation margin, and is accompanied by a figure. The descriptionin that letter focuses on crack propagation from leading edges and expresses crackpropagation margin in years based on the current observed crack growth rate.

Davis-Besse Nuclear Power Station, Unit No. 1L-1 5-328Page 2The Enclosures listed below provide the requested Davis-Besse Shield Buildingreinforcing bar (rebar) splice capacity report from Bechtel Power Corporation (Bechtel),which includes the results of testing studies at Purdue University and the Universityof Kansas:A. Bechtel Affidavit to Support the Disclosure Request for the Proprietary SpliceCapacity ReportB. Bechtel Report No. 25593-000-G83-GEG-00016-000, "Effect of Laminar Crackson Splice Capacity of No. 11 Bars based on Testing Conducted at PurdueUniversity anid University of Kansas for Davis-Besse Shield Building"(Non-Proprietary)C. Bechtel Report No. 25593-000-G83-GEG-00016-000, "Effect of Laminar Crackson Splice Capacity of No. 11 Bars based on Testing Conducted at PurdueUniversity and University of Kansas for Davis-Besse Shield Building"(Proprietary)Bechtel Report No. 25593-000-G83-GEG-00016-000 (Enclosure C) documentsDavis-Besse Shield Building rebar splice capacity analysis details that are consideredproprietary information that is to be withheld from public disclosure pursuant to10 CFR 2.390. A non-proprietary version of the document is provided as Enclosure B.Upon removal of Enclosure C, this letter can be decontrolled.There are no regulatory commitments contained in this letter. If there are any questionsor if additional information is required, please contact Mr. Clifford I. Custer, FleetLicense Renewal Project Manager, at 724-682-7139.I declare under penalty of perjury that the foregoing is true and correct. Executed onOctober /9i , 2015.Sincerely,Brian D. Boles Davis-Besse Nuclear Power Station, Unit No. 1L-1 5-328Page 3

Enclosures:

A. Bechtel Affidavit to Support the Disclosure Request for the Proprietary SpliceCapacity ReportB. Bechtel Report No. 25593-000-G83-GEG-00016-000, "Effect of Laminar Cracks onSplice Capacity of No. 11 Bars based on Testing Conducted at Purdue Universityand University of Kansas for Davis-Besse Shield Building"(Non Proprietary)C. Bechtel Report No. 25593-000-G83-GEG-00016-000, "Effect of Laminar Cracks onSplice Capacity of No. 11 Bars based on Testing Conducted at Purdue Universityand University of Kansas for Davis-Besse Shield Building"(Proprietary)cc: w/o EnclosuresNRC DLR Project ManagerNRC Region Ill AdministratorNRC DLR DirectorNRR DORL Project ManagerNRC Resident InspectorUtility Radiological Safety Board Enclosure ADavis-Besse Nuclear Power Station, Unit No. 1 (Davis-Besse)Letter L-15-328Bechtel Affidavit to Suppnort the Disclosure Reauestfor the Proprietary Splice Capacity Report3 pages follow 10 CFR 2.390AFFIDAVIT OF STEPHEN D. ROUTHSUPPORTING APPLICATION TO WITHHOLDFROM PUBLIC DISCLOSUREBECHTEL REPORT 25593-000-G83-00016-O0,0"EFFECT OF LAMINAR CRACKS ONSPLICE CAPACITY OF NO. 11 BARS BASED ON TESTING CONDUCTED AT PURDUEUNIVERSITY AND UNIVERSITY OF KANSAS FOR DAVISE-BESSE SHIELD BUILDING,"July 30, 2012I, Stephen 0. Routh, Manager of Nuclear Engineering Services, of Bechtel PowerCorporation (Bechtel), having been duly sworn, do hereby affirm and state:I have been authorized by Bechtel to (a) review the Information owned by Bechtel which isreferenced herein relating to supporting analyses for the Davis-Besse Nuclear Power Stationwhich Bechtel seeks to have withheld from public disclosure pursuant to 10 CFR 2.390(a)(4),and (b) apply for the withholding of such information from public disclosure by the NuclearRegulatory Commission (NRC) on behalf of Bechtel.1. Pursuant to the provisions of 10 CFR 2.390(b)(3), the following is furnished forconsideration by the Commission in determining whether the information sought tobe withheld from public disclosure should be withheld.i. The information sought to be withheld from public disclosure is owned andhas been held in confidence by Bechtel.ii. The information Is of a type customarily held in confidence by Bechtel and notcustomarily disclosed to the public. Bechtel has a rational basis fordetermining the types of information customadily held in confidence by it and,in that connection, utilizes a system to determine when and whether to holdcertain types of information in confidence. The application of that system andthe substance of that system constitute Bechtel policy and provide the rationalbasis required.Under that system, information is held in confidence if it falls in one or more ofseveral types, the release of which might result in the loss of an existing orpotential competitive advantage, as follows:a) The information reveals the distinguishing aspects of a process (orcomponent, structure, tool, method, etc.) where presentation of its useby any of Bechtel's competitors without license from Bechtelconstitutes a competitive economic advantage.b) It consists of supporting data, including test data, relative to a process(or component, structure, tool, method, etc.), the application of whichdata secures a competitive economic advantage (e.g., by optimizationor improved marketability).c) Its use by a competitor Would reduce their expenditure of resources orimprove their competitive position in the design, manufacture,shipment, installation, assurance of quality, or licensing a similarproduct.

d) It reveals cost or price information, production capacities, budgetlevels, or commercial strategies of Bechtel, its customers; or suppliers.e) It reveals aspects of past, present, or future Bechtel or customerfunded development plans and programs of potential commercialvalue to Bechtel.f) It contains patentable ideas, for which patent protection may bedesirable.There are sound policy reasons behind the Bechtel system which inciude the following:a) The use of such information by Bechtel gives Bechtel a competitiveadvantage over its competitors. It is, therefore, withheld fromdisclosure to protect the Bechtel competitive position.b) It is information, which is marketable in many ways. The extent towhich such information is available to competitors diminishesBechtel's ability to sell products and services involving the use of theinformation.c) Use by our competitors would put Bechtel at a competitivedisadvantage by reducing their expenditure of resources at Bechtelexpense.d) Each component of proprietary information pertinent to a particularcompetitive advantage is potentially as valuable as the totalcompetitive advantage. If competitors acquire components orproprietary information, anyone component may be the key to theentire puzzle, thereby depriving Bechtel of a competitive advantage.e) Unrestricted disclosure would jeopardize the position of prominence ofBechtel in the world market, and thereby give a market advantage tothe competition.f) The Bechtel capacity to invest corporate assets in research anddevelopment depends upon the success in obtaining and maintaininga competitive advantage.iii. The information is being transmitted to the Commission in confidence and,under the provisions of 10 CFR 2.390, it is to be received in confidence by theCommission.iv. The information sought to be protected is not available in public sources oravailable information has not been previously employed in the same originalmanner or method to the best of our knowledge and belief.v. The proprietary information specifically sought to be withheld is BechtelReport 25593-000-G83-GEG-0001 6-000, "Effect of Laminar Cracks on SpliceCapacity of No. 11 Bars based on Testing Conducted at Purdue Universityand University of Kansas for Davis-Besse Shield Building," which wasprepared to support evaluations of cracks found in the Davis-Besse concreteShield Building.

This report was prepared by Bechtel to analyze the potential effects of theconcrete cracks on the structural integrity of the concrete Shield Building.Public disclosure of this proprietary information is likely to cause substantialharm to the competitive position of Bechtel because it would enhance theability of competitors to perform similar evaluations and related services forcommercial power reactors without commensurate expenses. Also, publicdisclosure of the information would enable others to use the Information tomeet NRC requirements for licensing documentation without purchasing theright to use the information.The development of the information described in part is the result of applyingthe results of many analyst-hours and significant monetary expenditure.In order for a competitor of Bechtel to duplicate this information, similarevaluations would have to be performed and a significant manpower effort,having the requisite talent and experience, would have to be expended.Further affiant sayeth not.Stephen D. Routh, having been duly sworn, hereby confirms that i am the Manager ofNuclear Engineering Services, of Bechtel Power Corporation, that I am authorized on behalfof Bechtel to review the information attached hereto and to sign and file with the NuclearRegulatory Commission this affidavit and the attachments hereto, and that the statementsmade and matters set forth herein are true and correct to the best of my knowledge,information, and belief.Stephen D. RouthOn this day of .2015, he individual signing above personallyappeared before me, is known by me to be the person whose name is subscribed to withinthe instrument, and acknowledged that he executed the same for the purposes thereincontained. In witness hereof I hereunto set my hand and official seal.Notar Public

• r 'Steof Maryland Notary Public14 resdmeric.SCoutey ,21 State of Maryland, Frederick CountyMy OImIS~N xpSepeibu 1 2i8 My commission expires //=(/

in accordance with 10 CFR 2.390_______ Upon .removal of Enclosure C, this letter can be decontrolled. 50 ot tt otFirst Energy Nuclear Operating Company Oak Harbor, Ohio 43449Brian D. Boles 419-321-7676Vice President, Fax: 419-321-7582NuclearOctober 19, 2015-L-1 5-328 10 CFR 54ATTN: Document Control DeskU.S. Nuclear Regulatory CommissionWashington, DC 20555-0001

SUBJECT:

Davis-Besse Nuclear Power Station, Unit No. IDocket No. 50-346, License Number NPF-3Additional Information for the Advisory Committee on Reactor Safeaquards Reviewof the Davis-Besse..Nuclear Power Station. Unit No. 1. License Renewal Application(TAC No. ME4640)By letter dated August 27, 2010 (Agencywide Documents Access and ManagementSystem (ADAMS) Accession No. ML1 02450565), FirstEnergy Nuclear OperatingCompany (FENOC) submitted an application pursuant to Title 10 of the Code of FederalRegulations, Part 54 for renewal of Operating License NPF-3 for the Davis-BesseNuclear Power Station, Unit No. 1 (Davis-Besse). Following the September 23, 2015meeting between FENOC and the Advisory Committee on Reactor Safeguards (ACRS)License Renewal Subcommittee, the members requested additional information toclarify statements made by FENOC during the meeting and to complete their review ofthe License Renewal Application (LRA).The following information is provided to clarify the ACRS Subcommittee meetingdiscussion regarding the Davis-Besse Shield Building crack propagation marginstatements. The 100-foot crack propagation margin value was derived using ShieldBuilding Region 4 margin value in percent of area cracked (i.e., 20% margin) multipliedby the circumference of the Shield Building (i.e., 452 feet), which results in:"0.20 x 452 feet = approximately 100 feetThe supplemental information provided by FENOC letter dated October 6, 2015(ML15280A287), provides a more detailed description regarding the determination ofthe area for crack propagation margin, and is accompanied by a figure. The descriptionin that letter focuses on crack propagation from leading edges and expresses crackpropagation margin in years based on the current observed crack growth rate.

Davis-Besse Nuclear Power Station, Unit No. 1L-1 5-328Page 2The Enclosures listed below provide the requested Davis-Besse Shield Buildingreinforcing bar (rebar) splice capacity report from Bechtel Power Corporation (Bechtel),which includes the results of testing studies at Purdue University and the Universityof Kansas:A. Bechtel Affidavit to Support the Disclosure Request for the Proprietary SpliceCapacity ReportB. Bechtel Report No. 25593-000-G83-GEG-00016-000, "Effect of Laminar Crackson Splice Capacity of No. 11 Bars based on Testing Conducted at PurdueUniversity anid University of Kansas for Davis-Besse Shield Building"(Non-Proprietary)C. Bechtel Report No. 25593-000-G83-GEG-00016-000, "Effect of Laminar Crackson Splice Capacity of No. 11 Bars based on Testing Conducted at PurdueUniversity and University of Kansas for Davis-Besse Shield Building"(Proprietary)Bechtel Report No. 25593-000-G83-GEG-00016-000 (Enclosure C) documentsDavis-Besse Shield Building rebar splice capacity analysis details that are consideredproprietary information that is to be withheld from public disclosure pursuant to10 CFR 2.390. A non-proprietary version of the document is provided as Enclosure B.Upon removal of Enclosure C, this letter can be decontrolled.There are no regulatory commitments contained in this letter. If there are any questionsor if additional information is required, please contact Mr. Clifford I. Custer, FleetLicense Renewal Project Manager, at 724-682-7139.I declare under penalty of perjury that the foregoing is true and correct. Executed onOctober /9i , 2015.Sincerely,Brian D. Boles Davis-Besse Nuclear Power Station, Unit No. 1L-1 5-328Page 3

Enclosures:

A. Bechtel Affidavit to Support the Disclosure Request for the Proprietary SpliceCapacity ReportB. Bechtel Report No. 25593-000-G83-GEG-00016-000, "Effect of Laminar Cracks onSplice Capacity of No. 11 Bars based on Testing Conducted at Purdue Universityand University of Kansas for Davis-Besse Shield Building"(Non Proprietary)C. Bechtel Report No. 25593-000-G83-GEG-00016-000, "Effect of Laminar Cracks onSplice Capacity of No. 11 Bars based on Testing Conducted at Purdue Universityand University of Kansas for Davis-Besse Shield Building"(Proprietary)cc: w/o EnclosuresNRC DLR Project ManagerNRC Region Ill AdministratorNRC DLR DirectorNRR DORL Project ManagerNRC Resident InspectorUtility Radiological Safety Board Enclosure ADavis-Besse Nuclear Power Station, Unit No. 1 (Davis-Besse)Letter L-15-328Bechtel Affidavit to Suppnort the Disclosure Reauestfor the Proprietary Splice Capacity Report3 pages follow 10 CFR 2.390AFFIDAVIT OF STEPHEN D. ROUTHSUPPORTING APPLICATION TO WITHHOLDFROM PUBLIC DISCLOSUREBECHTEL REPORT 25593-000-G83-00016-O0,0"EFFECT OF LAMINAR CRACKS ONSPLICE CAPACITY OF NO. 11 BARS BASED ON TESTING CONDUCTED AT PURDUEUNIVERSITY AND UNIVERSITY OF KANSAS FOR DAVISE-BESSE SHIELD BUILDING,"July 30, 2012I, Stephen 0. Routh, Manager of Nuclear Engineering Services, of Bechtel PowerCorporation (Bechtel), having been duly sworn, do hereby affirm and state:I have been authorized by Bechtel to (a) review the Information owned by Bechtel which isreferenced herein relating to supporting analyses for the Davis-Besse Nuclear Power Stationwhich Bechtel seeks to have withheld from public disclosure pursuant to 10 CFR 2.390(a)(4),and (b) apply for the withholding of such information from public disclosure by the NuclearRegulatory Commission (NRC) on behalf of Bechtel.1. Pursuant to the provisions of 10 CFR 2.390(b)(3), the following is furnished forconsideration by the Commission in determining whether the information sought tobe withheld from public disclosure should be withheld.i. The information sought to be withheld from public disclosure is owned andhas been held in confidence by Bechtel.ii. The information Is of a type customarily held in confidence by Bechtel and notcustomarily disclosed to the public. Bechtel has a rational basis fordetermining the types of information customadily held in confidence by it and,in that connection, utilizes a system to determine when and whether to holdcertain types of information in confidence. The application of that system andthe substance of that system constitute Bechtel policy and provide the rationalbasis required.Under that system, information is held in confidence if it falls in one or more ofseveral types, the release of which might result in the loss of an existing orpotential competitive advantage, as follows:a) The information reveals the distinguishing aspects of a process (orcomponent, structure, tool, method, etc.) where presentation of its useby any of Bechtel's competitors without license from Bechtelconstitutes a competitive economic advantage.b) It consists of supporting data, including test data, relative to a process(or component, structure, tool, method, etc.), the application of whichdata secures a competitive economic advantage (e.g., by optimizationor improved marketability).c) Its use by a competitor Would reduce their expenditure of resources orimprove their competitive position in the design, manufacture,shipment, installation, assurance of quality, or licensing a similarproduct.

d) It reveals cost or price information, production capacities, budgetlevels, or commercial strategies of Bechtel, its customers; or suppliers.e) It reveals aspects of past, present, or future Bechtel or customerfunded development plans and programs of potential commercialvalue to Bechtel.f) It contains patentable ideas, for which patent protection may bedesirable.There are sound policy reasons behind the Bechtel system which inciude the following:a) The use of such information by Bechtel gives Bechtel a competitiveadvantage over its competitors. It is, therefore, withheld fromdisclosure to protect the Bechtel competitive position.b) It is information, which is marketable in many ways. The extent towhich such information is available to competitors diminishesBechtel's ability to sell products and services involving the use of theinformation.c) Use by our competitors would put Bechtel at a competitivedisadvantage by reducing their expenditure of resources at Bechtelexpense.d) Each component of proprietary information pertinent to a particularcompetitive advantage is potentially as valuable as the totalcompetitive advantage. If competitors acquire components orproprietary information, anyone component may be the key to theentire puzzle, thereby depriving Bechtel of a competitive advantage.e) Unrestricted disclosure would jeopardize the position of prominence ofBechtel in the world market, and thereby give a market advantage tothe competition.f) The Bechtel capacity to invest corporate assets in research anddevelopment depends upon the success in obtaining and maintaininga competitive advantage.iii. The information is being transmitted to the Commission in confidence and,under the provisions of 10 CFR 2.390, it is to be received in confidence by theCommission.iv. The information sought to be protected is not available in public sources oravailable information has not been previously employed in the same originalmanner or method to the best of our knowledge and belief.v. The proprietary information specifically sought to be withheld is BechtelReport 25593-000-G83-GEG-0001 6-000, "Effect of Laminar Cracks on SpliceCapacity of No. 11 Bars based on Testing Conducted at Purdue Universityand University of Kansas for Davis-Besse Shield Building," which wasprepared to support evaluations of cracks found in the Davis-Besse concreteShield Building.

This report was prepared by Bechtel to analyze the potential effects of theconcrete cracks on the structural integrity of the concrete Shield Building.Public disclosure of this proprietary information is likely to cause substantialharm to the competitive position of Bechtel because it would enhance theability of competitors to perform similar evaluations and related services forcommercial power reactors without commensurate expenses. Also, publicdisclosure of the information would enable others to use the Information tomeet NRC requirements for licensing documentation without purchasing theright to use the information.The development of the information described in part is the result of applyingthe results of many analyst-hours and significant monetary expenditure.In order for a competitor of Bechtel to duplicate this information, similarevaluations would have to be performed and a significant manpower effort,having the requisite talent and experience, would have to be expended.Further affiant sayeth not.Stephen D. Routh, having been duly sworn, hereby confirms that i am the Manager ofNuclear Engineering Services, of Bechtel Power Corporation, that I am authorized on behalfof Bechtel to review the information attached hereto and to sign and file with the NuclearRegulatory Commission this affidavit and the attachments hereto, and that the statementsmade and matters set forth herein are true and correct to the best of my knowledge,information, and belief.Stephen D. RouthOn this day of .2015, he individual signing above personallyappeared before me, is known by me to be the person whose name is subscribed to withinthe instrument, and acknowledged that he executed the same for the purposes thereincontained. In witness hereof I hereunto set my hand and official seal.Notar Public

• r 'Steof Maryland Notary Public14 resdmeric.SCoutey ,21 State of Maryland, Frederick CountyMy OImIS~N xpSepeibu 1 2i8 My commission expires //=(/