|
---|
Category:AFFIDAVITS
MONTHYEARML20199D2461999-01-19019 January 1999 Supplemental Affidavit of Js Robinson.* Affidavit of Js Robinson Providing Info Re Financial Results of Baycorp Holding Ltd & Baycorp Subsidiary,Great Bay Power Corp. with Certificate of Svc ML20198P7551998-12-30030 December 1998 Affidavit of J Robinson.* Affidavit of J Robinson Describing Events to Date in New England Re Premature Retirement of Npps,Current Plans to Construct New Generation in Region & Impact on Seabrook Unit 1 Operation.With Certificate of Svc ML20154D7381998-09-21021 September 1998 Affidavit of FW Getman Requesting Exhibit 1 to License Transfer Application Be Withheld from Public Disclosure,Per 10CFR2.790 ML20237A0631998-08-0606 August 1998 Affidavit of TC Feigenbaum Re Length of Fuel Cycles at Seabrook Station & of Future Plans for Fuel Cycle Length. W/Certificate of Svc ML20236M5181998-06-27027 June 1998 Affidavit.* Affidavit of J Parker Re 980506 License Exemption Request from Operator of Seabrook Station ML20236M4871998-06-27027 June 1998 Affidavit.* Affidavit of K Conrad Re 980506 License Exemption Request from Operator of Seabrook Station ML20236M5091998-06-27027 June 1998 Affidavit.* Affidavit of Sn Haberman Re 980506 License Exemption Request from Operator of Seabrook Station ML20236M5231998-06-27027 June 1998 Affidavit.* Affidavit of SA Parker Re 980506 License Exemption Request from Operator of Seabrook Station ML20236M4971998-06-27027 June 1998 Affidavit.* Affidavit of D Bogen Re 980506 License Exemption Request from Operator of Seabrook Station ML20236M5061998-06-27027 June 1998 Affidavit.* Affidavit of C Nord Re 980506 License Exemption Request from Operator of Seabrook Station ML20236M5401998-06-27027 June 1998 Affidavit.* Affidavit of Eh Mecklejohn Re 980506 License Exemption Request from Operator of Seabrook Station ML20216E0351998-04-13013 April 1998 Affidavit of FW Getman (Great Bay Power Corp) Requesting That NRC Withhold Util Response to NRC RAI Re Proposed Acceleration of Decommissioning Funding for Ownership Share of Seabrook Station ML20140B9711997-06-0404 June 1997 Affidavit of FW Getman Per 10CFR2.790,re Great Bay Power Corp'S Filing of Suppl to Petition for Partial Reconsideration of Exemption Order ML20073E1641991-04-19019 April 1991 Affidavit of J Hausner.* Discusses Facility Offsite Radiological Emergency Planning.W/Certificate of Svc ML20065K3421990-11-0202 November 1990 Affidavit of Cole.* Discusses Issue of Whether Commonwealth of Ma School Teachers & Day Care Ctr Personnel Perform Roles Contemplated in Spmc ML20065K3451990-11-0101 November 1990 Affidavit of Mc Sinclair.* Responds to Questions Posed by Aslab in ALAB-937 Re Whether Spmc Provides Adequate Supervision & Care of Children Evacuated to School Host Facility at Holy Cross College.W/Certificate of Svc ML20062C2781990-10-19019 October 1990 Affidavit of a Callendrello Addressing Issue Re Staffing of Seabrook Plan for Massachusetts Communities School Host Facility as Discussed in Aslab 900918 Decision.W/Certificate of Svc ML20062C2651990-10-18018 October 1990 Affidavit of Ds Mileti Addressing Issue Whether Massachusetts School Teachers & Day Care Ctr Personnel Would Respond to Assignments in Emergency to Escort Children on Buses ML20059M6201990-09-24024 September 1990 Affidavit of GL Iverson.* Responds to Statements Made in Mc Sinclair 900907 Supplemental Affidavit.W/Certificate of Svc ML20059B0021990-08-22022 August 1990 Affidavit of RW Donovan Re Staffing Adequacy for Implementation of New Hampshire Radiological Emergency Response Plan for Plant.W/Certificate of Svc ML20059A9981990-08-21021 August 1990 Affidavit of Jc Dolan Re Adequacy of Staffing for Implementation of New Hampshire Radiological Emergency Response Plan for Plant ML20059B0281990-08-21021 August 1990 Affidavit of GL Iverson Re Position of Governor Media Ctr representative.Twenty-second Initial Vacancy Was New Hampshire Public Utils Commission Lead Engineer ML20059A8911990-08-16016 August 1990 Affidavit of GL Iverson Re Adequate Staffing at New Hampshire Radiological Emergency Plan in Event of Radiological Emergency at Seabrook.W/Certificate of Svc ML20056B2251990-08-0606 August 1990 Affidavit of Mc Sinclair.* Affidavit Re Offsite Radiological Emergency Response Planning for State of Nh & Spmc ML20081E2431990-07-31031 July 1990 Affidavit of a Desrosiers Re Evacuation of Advanced Life Support Patients ML20081E2471990-07-31031 July 1990 Affidavit of B Cohen Re Evacuation of Advanced Life Support Patients ML20081E2401990-07-31031 July 1990 Affidavit of Rl Goble Re Preparation of Advanced Life Support Patients for Evacuation ML20081E2511990-07-31031 July 1990 Affidavit of Sj Plodzik Re Evacuation of Advanced Life Support Patients ML20055G6521990-07-11011 July 1990 Affidavit of T Urbanik Re Licensee Motion for Summary Disposition of Advanced Life Support Patients Issue.* Addresses Issues Re Preparation of Advanced Life Support Patients.W/Certificate of Svc ML20058K8011990-06-25025 June 1990 Affidavit of Am Callendrello.* Addresses Issues Defined by ASLB in LBP-90-12 Re Preparation of Advanced Life Support Patients for Evacuation & Impact on Special Population Evacuation Time Estimates.W/Certificate of Svc ML20058K7811990-06-25025 June 1990 Affidavit of J Bonds.* Addresses Issues Defined by ASLB in LBP-90-12 Re Advanced Life Support Patients & Consideration of Preparation Time for Evacuation Under State of Nh Radiological Emergency Response Plan.W/Certificate of Svc ML20058K7841990-06-25025 June 1990 Affidavit of D Albertson.* Addresses Issues of Advanced Life Support Patient Preparation for Transport.Certificate of Svc Encl ML20058K7941990-06-25025 June 1990 Affidavit of Kj Callahan.* Addresses Issues of Advanced Life Support Patient Preparation for Transport.Certificate of Svc Encl ML20012C6701990-03-15015 March 1990 Affidavit of Rd Pollard.* Advises That Deficiencies Cited in INPO & Other Repts Demonstrate No Basis for Finding That Reactor Complies W/Nrc Regulations or Can Be Operated Safely ML20012C7121990-03-13013 March 1990 Affidavit of Be Beuchel.* Addresses Intervenors Allegations & Whether Significant Safety Issue Present Re Rosemount Transmitters.Supporting Info,Including Beuchel Prof Qualifications & Certificate of Svc Encl ML20006G1151990-02-26026 February 1990 Affidavit of Gc Minor Re Rev of Rosemount Transmitters at Seabrook.* Discusses Potential Safety Impact of Rosemount Transmitter Problems & Need for Changing Faulty Transmitters Before Plant Proceeds W/Power Ascension & Operation ML20011F1291990-02-16016 February 1990 Affidavit of WT Wallace.* Discusses Oct 1988 Amends to State of Nh Radiological Emergency Response Plan.Supporting Info Encl ML20011F1281990-02-16016 February 1990 Affidavit of GL Iverson.* Discusses Oct 1988 Amends to State of Nh Radiological Emergency Response Plan ML19351A7051989-12-0606 December 1989 Affidavit of TC Feigenbaum.* Advises That Further Delay in Obtaining Full Power License for Plant & Reaching Commercial Operations Caused by Further Litigation Will Be Very Costly & Unnecessary.W/Supporting Info & Certificate of Svc ML19332F9701989-11-30030 November 1989 Joint Affidavit of Gc Minor & Sc Sholly.* Opposes Issuance of Full Power OL Until Problems Noted Resolved,Consistent W/ NRC Finding in Confirmatory Action Ltr CAL-RI/89-11.Addl Info & Certificate of Svc Encl ML19332D7011989-11-22022 November 1989 Affidavit of AA Kelsey.* Discusses 1989 Edition of Arbitron Radio County Coverage Rept for Essex County,Ma.Few People in Geographic Area Listen to Whav & Wlyt.W/Certificate of Svc ML20006C4371989-11-21021 November 1989 Affidavit of AA Kelsey.* Discusses Radio Coverage in Merrimac Valley.W/Supporting Info & Certificate of Svc ML19332D5701989-11-17017 November 1989 Joint Affidavit of Gc Minor & Sc Sholly Re New Hampshire Yankee 890921 OL Amend Request (Plant Instrument Air cross-connect to Containment Bldg Air sys,NYN-89116).* Proposed Amend Considered Illogical & W/O Technical Merit ML19332D5301989-11-14014 November 1989 Affidavit of Am Callendrello.* Refutes Intervenors Allegations That Util No Longer Able to Provide Emergency Info to Public as Result of Withdrawal of Agreement Between Util & Wcgy.W/Supporting Info ML19332D5441989-11-14014 November 1989 Affidavit of Gr Gram.* Confirms Util Adherence to 870914 Commitment to Provide Certain Svcs & Equipment for Planning & Implementation of Alerting Sys.W/Supporting Info & Certificate of Svc ML19332D5361989-11-13013 November 1989 Affidavit of Gj Catapano.* Denies Intervenors Allegations That Util Incapable of Providing Prompt Emergency Instructions to Public in Light of Withdrawal of Certain Agreements.Supporting Info Encl ML19354D5121989-11-0909 November 1989 Affidavit of R Boulay Re Voiding of Emergency Broadcast Sys Ltrs of Agreement.* Since Wcgy Voided Ltr of Agreement W/ Util & Withdrew from Emergency Plan,Broadcast Sys for Merrimac Valley Cannot Be Activated.Related Info Encl ML19354D5141989-10-30030 October 1989 Affidavit of R Sawyer Re Voiding of Emergency Broadcast Sys Ltr of Agreement.* Marked-up Affidavit Discussing Impact of Wcgy Voiding Ltr of Agreement W/Util & Withdrawing from Participating in Emergency Planning.W/Certificate of Svc ML19327B7021989-10-27027 October 1989 Affidavit of Jf Bassett Re Voiding of Emergency Broadcast Sys (Ebs) Ltrs of Agreement.* Discusses Fact That Applicant Has Never Followed Through on Commitment to Provide Ebs Equipment,Per 870914 Ltr of Agreement.Supporting Info Encl ML19327B7061989-10-26026 October 1989 Affidavit of Dj Rowe Re Voiding of Emergency Broadcast Sys (Ebs) Ltrs of Agreement.* Discusses Applicant Refusal to Live Up to Commitments to Commonwealth of Ma Ebs.W/ Supporting Info & Certificate of Svc 1999-01-19
[Table view] Category:LEGAL TRANSCRIPTS & ORDERS & PLEADINGS
MONTHYEARML20217H9511999-10-21021 October 1999 Memorandum & Order.* Proceeding Re Nepco 990315 Application Seeking Commission Approval of Indirect License Transfers Consolidated,Petitioners Granted Standing & Two Issues Admitted.With Certificate of Svc.Served on 991021 ML20217N2561999-10-21021 October 1999 Transcript of Affirmation Session on 990121 in Rockville, Maryland Re Memorandum & Order Responding to Petitions to Intervene Filed by co-owners of Seabrook Station Unit 1 & Millstone Station Unit Three.Pp 1-3 ML20211L5141999-09-0202 September 1999 Comment on Draft Reg Guide DG-4006, Demonstrating Compliance with Radiological Criteria for License Termination. Author Requests Info as to When Seabrook Station Will Be Shut Down ML20211J1451999-08-24024 August 1999 Comment Opposing NRC Consideration of Waiving Enforcement Action Against Plants That Operate Outside Terms of Licenses Due to Y2K Problems ML20210S5641999-08-13013 August 1999 Motion of Connecticut Light & Power Co,Western Massachusetts Electric Co & North Atlantic Energy Corp to Strike Unauthorized Response of Nepco.* Unauthorized Response Fails to Comply with Commission Policy.With Certificate of Svc ML20210Q7531999-08-11011 August 1999 Order Approving Application Re Corporate Merger (Canal Electric Co). Canal Shall Provide Director of NRR Copy of Any Application,At Time Filed to Transfer Grants of Security Interests or Liens from Canal to Proposed Parent ML20210P6271999-08-10010 August 1999 Response of New England Power Company.* Nu Allegations Unsupported by Any Facts & No Genuine Issues of Matl Facts in Dispute.Commission Should Approve Application Without Hearing ML20210H8311999-08-0303 August 1999 Reply of Connecticut Light & Power Co,Western Massachusetts Electric Co & North Atlantic Energy Corp to Response of New England Power Co to Requests for Hearing.* Petitioners Request Hearing on Stated Issues.With Certificate of Svc ML20210J8501999-08-0303 August 1999 Order Approving Transfer of License & Conforming Amend.North Atlantic Energy Service Corp Authorized to Act as Agent for Joint Owners of Seabrook Unit 1 ML20211J1551999-07-30030 July 1999 Comment Opposing That NRC Allow Seabrook NPP to Operate Outside of Technical Specifications Due to Possible Y2K Problems ML20210E3011999-07-27027 July 1999 Response of New England Power Co to Requests for Hearing. Intervenors Have Presented No Justification for Oral Hearing in This Proceeding.Commission Should Reject Intervenors Request for Oral Hearing & Approve Application ML20209H9101999-07-20020 July 1999 Motion of Connecticut Light & Power Co & North Atlantic Energy Corp for Leave to Intervene & Petition for Hearing.* with Certificate of Svc & Notice of Appearance ML20195H1911999-06-15015 June 1999 Application of Montaup Electric Co & New England Power Co for Transfer of Licenses & Ownership Interests.Requests That Commission Consent to Two Indirect Transfers of Control & Direct Transfer ML20206A1611999-04-26026 April 1999 Memorandum & Order.* Informs That Montaup,Little Bay Power Corp & Nepco Settled Differences Re Transfer of Ownership of Seabrook Unit 1.Intervention Petition Withdrawn & Proceeding Terminated.With Certificate of Svc.Served on 990426 ML20205M7621999-04-15015 April 1999 Notice of Withdrawal of Intervention of New England Power Co.* New England Power Co Requests That Intervention in Proceeding Be Withdrawn & Hearing & Related Procedures Be Terminated.With Certificate of Svc CLI-99-06, Order.* Joint Request for ten-day Extension of Schedule Set Forth in CLI-99-06 in Order to Facilitate Parties Settlement Efforts Granted,With Exception of Date of Hearing. with Certificate of Svc.Served on 9904071999-04-0707 April 1999 Order.* Joint Request for ten-day Extension of Schedule Set Forth in CLI-99-06 in Order to Facilitate Parties Settlement Efforts Granted,With Exception of Date of Hearing. with Certificate of Svc.Served on 990407 ML20205G0921999-04-0505 April 1999 Joint Motion of All Active Participants for 10 Day Extension to Permit Continuation of Settlement Discussion.* Participants Request That Procedural Schedule Be Extended by 10 Days.With Certificate of Svc ML20205G3091999-03-31031 March 1999 Petition That Individuals Responsible for Discrimination Against Contract Electrician at Plant as Noted in OI Rept 1-98-005 Be Banned by NRC from Participation in Licensed Activities for at Least 5 Yrs ML20204E6401999-03-24024 March 1999 Protective Order.* Issues Protective Order to Govern Use of All Proprietary Data Contained in License Transfer Application or in Participants Written Submission & Oral Testimony.With Certificate of Svc.Served on 990324 ML20204G7671999-03-23023 March 1999 Comment Supporting Proposed Rule 10CFR50.54(a) Re Direct Final Rule,Changes to QA Programs ML20207K1941999-03-12012 March 1999 North Atlantic Energy Svc Corp Participation in Proceeding.* Naesco Wished to Remain on Svc List for All Filings.Option to Submit post-hearing Amicus Curiae Brief Will Be Retained by Naesco.With Certificate of Svc ML20207H4921999-02-12012 February 1999 Comment on Draft Contingency Plan for Year 2000 Issue in Nuclear Industry.Util Agrees to Approach Proposed by NEI ML20203F9471999-02-0909 February 1999 License Transfer Application Requesting NRC Consent to Indirect Transfer of Control of Interest in Operating License NPF-86 ML20199F7641999-01-21021 January 1999 Answer of Montaup Electric Co to Motion of Ui for Leave to Intervene & Petition to Allow Intervention out-of-time.* Requests Motion Be Denied on Basis of Late Filing.With Certificate of Svc ML20199H0451999-01-21021 January 1999 Answer of Little Bay Power Corp to Motion of Ui for Leave to Intervene & Petition to Allow Intervention out-of-time.* Requests That Ui Petition to Intervene & for Hearing Be Denied for Reasons Stated.With Certificate of Svc ML20199D2461999-01-19019 January 1999 Supplemental Affidavit of Js Robinson.* Affidavit of Js Robinson Providing Info Re Financial Results of Baycorp Holding Ltd & Baycorp Subsidiary,Great Bay Power Corp. with Certificate of Svc ML20199D2311999-01-19019 January 1999 Response of New England Power Co to Answers of Montaup Electric Co & Little Bay Power Corp.* Nep Requests That Nep Be Afforded Opportunity to File Appropriate Rule Challenge with Commission Pursuant to 10CFR2.1329 ML20206R1041999-01-13013 January 1999 Answer of Little Bay Power Corp to Motion of New England Power Co for Leave to Intervene & Petition for Summary Relief Or,In Alternative,For Hearing.* with Certificate of Svc ML20206Q8451999-01-12012 January 1999 Written Comments of Massachusetts Municipal Wholesale Electric Co.* Requests That Commission Consider Potential Financial Risk to Other Joint Owners Associated with License Transfer.With Certificate of Svc.Served on 990114 ML20199A4741999-01-12012 January 1999 Answer of Montaup Electric Co to Motion of Nepco for Leave to Intervene & Petition for Summary Relief Or,In Alternative,For Hearing.* Nepco 990104 Motion Should Be Denied for Reasons Stated.With Certificate of Svc ML20206Q0151999-01-12012 January 1999 North Atlantic Energy Svc Corp Answer to Petition to Intervene of New England Power Co.* If Commission Deems It Appropriate to Explore Issues Further in Subpart M Hearing Context,Naesco Will Participate.With Certificate of Svc ML20199A4331999-01-11011 January 1999 Motion of United Illuminating Co for Leave to Intervene & Petition to Allow Intervention out-of-time.* Company Requests That Petition to Allow Intervention out-of-time Be Granted.With Certificate of Svc ML20198P7181998-12-31031 December 1998 Motion of Nepco for Leave to Intervene & Petition for Summary Relief Or,In Alternative,For Hearing.* Moves to Intervene in Transfer of Montaup Seabrook Ownership Interest & Petitions for Summary Relief or for Hearing ML20198P7551998-12-30030 December 1998 Affidavit of J Robinson.* Affidavit of J Robinson Describing Events to Date in New England Re Premature Retirement of Npps,Current Plans to Construct New Generation in Region & Impact on Seabrook Unit 1 Operation.With Certificate of Svc ML20195K4061998-11-24024 November 1998 Memorandum & Order.* North Atlantic Energy Services Corp Granted Motion to Withdraw Proposed Amends & Dismiss Related Adjudicatory Proceedings as Moot.Board Decision LBP-98-23 Vacated.With Certificate of Svc.Served on 981124 ML20155J1071998-11-0909 November 1998 NRC Staff Answer to North Atlantic Energy Svc Corp Motion for Leave to File Reply.* Staff Does Not Object to North Atlantic Energy Svc Corp Motion.With Certificate of Svc ML20155D0041998-10-30030 October 1998 Motion for Leave to File Reply.* Licensee Requests Leave to Reply to Petitioner 981026 Response to Licensee 981015 Motion to Terminate Proceedings.Reply Necessary to Assure That Commission Is Fully Aware of Licensee Position ML20155D0121998-10-30030 October 1998 Reply to Petitioner Response to Motion to Terminate Proceedings.* Licensee Views Segmentation Issue as Moot & Requests Termination of Subj Proceedings.With Certificate of Svc ML20155B1641998-10-26026 October 1998 Response to Motion by Naesco to Withdraw Applications & to Terminate Proceedings.* If Commission Undertakes to Promptly Proceed on Issue on Generic Basis,Sapl & Necnp Will Have No Objection to Naesco Motion.With Certificate of Svc ML20154K8751998-10-15015 October 1998 Motion to Withdraw Applications & to Terminate Proceedings.* NRC Does Not Intend to Oppose Motion.With Certificate of Svc ML17265A8071998-10-0606 October 1998 Comment on Integrated Review of Assessment Process for Commercial Npps.Util Endorses Comments Being Provided by NEI on Behalf of Nuclear Industry ML20154C8171998-10-0606 October 1998 Notice of Appointment of Adjudicatory Employee.* Notice Given That W Reckley Appointed as Commission Adjudicatory Employee to Advise Commission on Issues Related to Review of LBP-98-23.With Certificate of Svc.Served on 981006 CLI-98-18, Order.* Grants Joint Motion Filed by Naesco,Sapl & Necnp for Two Week Deferral of Briefing Schedule Set by Commission in CLI-98-18.With Certificate of Svc.Served on 9810061998-10-0505 October 1998 Order.* Grants Joint Motion Filed by Naesco,Sapl & Necnp for Two Week Deferral of Briefing Schedule Set by Commission in CLI-98-18.With Certificate of Svc.Served on 981006 ML20153H4471998-10-0101 October 1998 Joint Motion of Schedule Deferral.* Naesco,Sapl & Necnp Jointly Request Temporary Deferral of Briefing Schedule as Established by Commission Order of 980917 (CLI-98-18). with Certificate of Svc ML20154F9891998-09-29029 September 1998 License Transfer Application Requesting Consent for Transfer of Montaup Electric Co Interest in Operating License NPF-86 for Seabrook Station,Unit 1,to Little Bay Power Corp ML20154D7381998-09-21021 September 1998 Affidavit of FW Getman Requesting Exhibit 1 to License Transfer Application Be Withheld from Public Disclosure,Per 10CFR2.790 ML20153C7791998-09-18018 September 1998 Comment Supporting Proposed Rule 10CFR50 Re Reporting Requirements for Nuclear Power Reactors.Util Endorses NRC Staff Focus on Operability & Funtionality of Equipment & NEI Comments ML20151Z5611998-09-18018 September 1998 Order.* Pursuant to Commission Order CLI-98-18 Re Seabrook Unit 1 Proceeding,Schedule Described in Board 980904 Memorandum & Order Hereby Revoked Pending Further Action. with Certificate of Svc.Served on 980918 ML20151Y0331998-09-17017 September 1998 Order.* All Parties,Including Util,May File Brief No Later than 981007.Brief Shall Not Exceed 30 Pages.Commission May Schedule Oral Argument to Discuss Issues,After Receiving Responses.With Certificate of Svc.Served on 980917 ML20153E8771998-09-16016 September 1998 Comment Opposing Draft NUREG-1633, Assessment of Use of Potassium Iodide (Ki) as Protective Action During Severe Reactor Accidents. Recommends That NRC Reverse Decision to Revise Emergency Planning Regulation as Listed 1999-09-02
[Table view] |
Text
_ - _ _ _ _ _ _ - _ _ _ - _
ko Ihted November 20, 1987 UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION before the ATOMIC SAFETY AND LICENSING BOARD In the Matter of: )
)
PUBLIC SERVICE COMPANY OF ) Ibcket Nos. 50-443-OL NEW HAMPSHIRE, et al. ) Docket Nos. 50-444-OL
)
Seabrook Station, Units ) On-site Bnergency Planning 1 and 2) ) and Safety Issues AFFIDAVIT OF JOHN N. ESPOSITO ON THE GINNA TUBE RUPTURE EVENT AND THE DESIGN OF AND EXPERIENCE WITH DOMESTIC MODEL F STEAM GENERATORS I, John N. Esposito, being duly sworn, depose and state:
1 1. I am employed by Westinghouse Electric Corporation as Manager )
of Technology Development in the Service Technology Division of the Power Systems Business Unit.
- 2. My professional qualifications are attached hereto and marked "A". l 3 The purpose of my affidavit is to provide discussions of; (a) the Ginna tube rupture event including the mechanism which led to the event and the corrective actions instituted to avoid similar events in the future; (b) the Model F steam generator design features and the AVT )
I water chemistry controls which act to minimize tube i degradation; and i
G J l
J
(c) the operating history of Model F type steam generators in the United States which demonstrates their reliability.
- 4. On January 25, 1982, a tube ruptured in steam generator B at the Ginna nuclear power station. The fbilowing sequence of events was determined to have occurred:
(a) A metal object was inadvertently left in the steam generator during a field modification in 1975. This foreign object was later found on the tubesheet at the periphery of the tube bundle.
(b) During operation, flow forces caused the fbreign object to impact the peripheral tubes resulting in damage to both plugged and operational tubes. This process continued until tube R42C55, located two rows in from the periphery of the tube bundle, ruptured.
(c) Investigations showed that the fbreign object produced an axial wear scar and local wall thinning by which the ruptured tube experienced loss in tube wall thickness over a eight month period.
(d) As a result of this event, utilities now routinely perform visual searches of the steam generator tubesheet periphery to i ensure that foreign objects are not left in the steam generators.
- 5. The Model F steam generator was designed in the mid-seventies.
The four Seabrook Unit 1 steam generators were shipped in December 1980. The Model F incorporates a number of design features which, together with the use of AVT water chemistry controls, reduce the potential for tube degradation. The major l
., features of the Model F steam generators and their benefits are: m. 1 s (a) Thermal treatment of Alloy 600 tube material - 3
<t Years of research into the performance of Alloy 600 tube material in various steam generator operating environments led to the development of a opecial thermal treatment process to o>
improve its corrosion re51 stance. The thermal treatment
. produces- a microstructure that is more resistant to the various
' c('
l
resistance by as much ak a factor of 10. EPRI has sponsored a number of programs which confirm this performance and has ,
recommended the use of thermally treated Alloy 600 for steam generator tubing.
.r (b) Full depth hydrq lically expanded tubesheet joint - ,
s ,
The Model F tubesheet joint is formed by a full depth f expansion process. After the tube is inserted into the '
Yd
, 3 tubesheet hole, it is cxpanded hydraulically in a single i ai step. This process closes the crevice between the tube and 0 the tubesheet hole (uden is a region where dryout could otherwise produce chemical concentration if the crevice remains N
open) while at the same time producing low residual stresses, which reduces the potential for stress corrosion cracking.
(c) Stainless steel tube support plate material - The steam generator tube support plate material of early model steam generators was carbon steel. Under most conditions, this material proved to be satisfactory. However, in the mid-70s corrosion of this material due to the presence of chemical
l
)
impurities led to a tube degradation phenomenon called '
denting. When carbon steel corrodes, the oxide occupies a volume that is greater than that of the original material.
Under certain conditions formation of this oxide has been found to fill clearanced between the support plates and the tubes .
producing forces sufficient to cause local tube deformation and producing high stresses which increase the potential for stress L
I corrosion cracking of the tubes. The Model F tube support material is type h05 stainless steel. This material has improvM corrosion resistance and with modern, AVT water chemistry control, the volume of the oxide does not exceed the material loss thus eliminating the potential for denting.
(d) Quatrefoil tube support hole geometry - The Model F tube support plate holes are broached to produce a four-lobed hole
! which directs the flow through the tube support plate to cleanse the interface with the tube. This cleansing action limits the potential for local chemical concentration and subsequent tube corrosion. This design limits the contact s
between the tube and the support plate to four narrow lands, j which minimizes local dryout and chemical concentration. Tests !
have confirmed that the quatrefoil design produces lower local
\ superheat at the interface with the tube than the conventional drilled tube hole. In tests which modeled sludge buildup in the crevice between the tube and tube support plate, the buildup was limited to the width of the lands, which provides lower potential for corrosion at the interface.
i
- 6. Following is a list of the Model F type steam generators operating in the United States:
Plant SG Model Loops Total Tubes Operation Ihte Surry 2 51F 3 10,026 9/80 Surry.1 51F 3 10,026 7/81 Turkey Point 3 44F 3 9,642 4/82 !
i Turkey Point 4 44F 3 9,642 4/83 i
Point Beach 1 44F 2 6,428 4/84 Callaway 1 F 4 22,424 10/84 Robinson 2 44F 3 9,642 1/85 Wolf Creek F 4 22,424 5/85 Millstone 3 F 4 22,504 1/86 l Vogtle 1 F 4 22,504 3/87
- 7. These plants account for 33 Model F-type steam generators with nearly 150,000 tubes and represent a total of 119 equivalent SG l operating years. This operating experience is sufficient to confirm the reliable operating characteristics of the Model F steam generators.
- 8. Of the nearly 150,000 mdel F tubes in service in the United States, 29 tubes have been plugged. The reasons associated with this plugging are as follows:
(a) Foreign Object Interactions - Control of foreign objects is accomplished through careful inventory of materials introduced to the steam generator during maintenance and through periodic inspections in the tubesheet region. 'Ihe presence of foreign objects has led to tube plugging in peripheral tubes at two Model F-type plants - Surry 2 (one
i
.I
( tube) and Turkey Point 3 (three tubes). Both of these plants ,
ci- 1 began operation prior to implementation of programs to contro]
r, ,
foreign obj9 cts. I l
. (b) Surface Artifacts - Eddy cui' rent indications.in.the free I length of the tubing, thought to be caused by conduct.i.ve {
deposite on the OD surface have been observed at Surry. Unit 1.
Seven tubes with this' type of indication were plugged at Surry. One of theci was pulled aM subjected t,o laboratory examination. Teste: ccnfirmed tbn acaence e,f . degradation where l
edCy current testing had suggested a indication of t degradation. A similar condition is believed responsible for the plugging of four tubes at Turkey Point 3 and two tubes in Callaway 1.
(c) AVB Wear - Tube wall degradation at anti-vibration bar ;
- 3. s j (AVB) intersections has been observed in the past,.moEt prominently in the 51 Series steam generators but also in other
, models. AVB u%r has been observed to occur at a rate of '5- 15%
f per year. This mode of degradation is essentially c
mechanical in nature, and has been addressed in some plants [
with 51 Series steam generators by installation of new AVBa of a different design. AVB relatel wear has led to the plugging of ten tubes at Callaway Unit 1. l (d) Other - Two additional tubes were plugged. One of these was at Surry 1 and was attributed to an internal tube restriction which prevented an eddy current inspection. The other was plugged at Callaway 1 for a variation in tube diameter not associated with the tube support plate region.
J
, a;
.., 9 Experience has shown that Model F steam generators operating with modern AVT water chemistry controls are extremely unlikely to experience tube corrosion which could lead to steam generator tube rupture, particularly in the first few years of operation.
Further affiant sayeth not
. 'l 4 Joh,ri N.' Espito to before me SUBSCRIBED this of f day of AND SpW/puw.6a/,1987. y t
(7$nwedbotax-NOTARY'PUBLIC P.,. _' ' u'i n rJ:'.te
')' .; .-l'3JNTY 9' . 'l . ', . ,, t ry , Igg
.- >, 3 . i.i CI N 0*' 8 p; , p g, y, .
1
___-___-___-_---A
l.
I John N. Especito My nar.e is .'ohn N. Esposito. My business address is P.O. Box 355, Pittsburgh,
- n. . , ! 52 M . I c. ea,aluyed by Westinghouse Elcotrio Corporation as >>nagea, Technc10gy Eeve'.cpment, Service Techno1cgy Mvision.
graduated from Youngstown University, Youngster., Ohio with a B.S. Degree i, Chemistry in 1960. In *.966, I received a Ph.0. in Chemistry from Case
.tnst n uce of Techavtusy, 01 ,.=14.4, Ohis. I aise opent : p rtion cf 19M i,*/
1962 in service with the United States Amy.
In late 1965, after comp".etion of all the requirements for the granting of the Ph.D. degree, I began exploymer.t with the Westinghouse Electric Corporation at the Centrai ?.esearch Laboratories in Pittsburgh, PA. .I was continually employed at those laboratories until November cf 1976. At that time I transferred into the comercial nuc'. ear power division. My initial posit 10n l was Manager, Chemistry Technology. The responsibilities cf this positier included investigation of corrosion and other roms of degradation for Westinghouse steam generators. I have been involved with steam generator related activities to the present time. My present canagerial duties include activities re'.ated to evaluatien of stea:t generater inspection data, steam generator materials, and chemistry techtclogy studies related to steam generators.
l l
l
-A-l l