Letter Sequence Request |
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TAC:MD6792, Addition of New Tech Spec on RCS Boron Limits and Revisions to Tech Spec 3.3.1 to Address Rwfs (Open) |
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MONTHYEARML0703900572007-02-21021 February 2007 BVPS Doc Table M Project stage: Other ML0725504882007-08-30030 August 2007 10 CFR 50.55a Request: Proposed Alternative to ASME Section Xi Requirements for Replacement of Class 3 Buried Piping Project stage: Request ULNRC-05445, One-Time Completion Time Extension for Essential Service Water (ESW) System2007-10-31031 October 2007 One-Time Completion Time Extension for Essential Service Water (ESW) System Project stage: Request ML0800400232008-01-0808 January 2008 Forthcoming Meeting with Union Electric Company on the Callaway Plant Relief and Amendment Requests Dated August 3 and October 31, 2007. (Tac No. MD6792 and MD7252) Project stage: Meeting ML0802504052008-01-23023 January 2008 Licensee Handout for Meeting with Union Electric Company on the Callaway Plant Relief Request I3R-10 to Use Plastic Pipe in the Safety-Related Essential Service Water (ESW) System Project stage: Meeting ML0803802882008-02-0707 February 2008 Preliminary Request for Additional Information Project stage: RAI ML0803806472008-02-29029 February 2008 Summary of Meeting with Union Electric Company Callaway Plant, Unit 1, 8/30/2007 Relief Request and 10/31/2007 License Amendment Request Applications Related to Replacement of Essential Service Water Piping (Tac No. MD6792 and MD7252) Project stage: Meeting ULNRC-05434, CFR50.55a Request: Proposed Alternative to ASME Section X1 Requirements for Replacement of Class 3 Buried Piping2008-04-17017 April 2008 CFR50.55a Request: Proposed Alternative to ASME Section X1 Requirements for Replacement of Class 3 Buried Piping Project stage: Request ML0815800112008-06-10010 June 2008 Request for Additional Information, Relief Request No. 13R-10 and License Amendment Request to Revise TS 3.7.8, Essential Service Water System, and TS 3.8.1, AC Sources - Operating, for One-time CT Extension Underground Piping Project stage: RAI ML0817506442008-06-24024 June 2008 Forthcoming Meeting with Union Electric Company on the Callaway Plant to Discuss the Licensee'S Responses to NRC Request for Additional Information Relief and License Amendment Requests Project stage: RAI ULNRC-05517, CFR50.55a Request: Proposed Alternative to ASME Section XI Requirements for Replacement of Class 3 Buried Piping2008-07-10010 July 2008 CFR50.55a Request: Proposed Alternative to ASME Section XI Requirements for Replacement of Class 3 Buried Piping Project stage: Request ULNRC-05529, CFR50.55a Request: Proposed Alternative to ASME Section XI Requirements for Replacement of Class 3 Buried Piping2008-07-24024 July 2008 CFR50.55a Request: Proposed Alternative to ASME Section XI Requirements for Replacement of Class 3 Buried Piping Project stage: Request ML0826307992008-09-0505 September 2008 Calculation 2007-13241, Rev. 1, Minimum Wall Thickness for ESW Buried Hdpe Piping. Project stage: Other ML0826308002008-09-12012 September 2008 Calculation 2007-16760, Rev. 0, Buried Hdpe Piping Stress Analysis. Project stage: Other ULNRC-05542, Transmittal of Callaway, Unit 1, Additional Information Regarding 10CFR50.55a Request: Proposed Alternative to ASME Section XI Requirements for Replacement of Class 3 Buried Piping2008-09-15015 September 2008 Transmittal of Callaway, Unit 1, Additional Information Regarding 10CFR50.55a Request: Proposed Alternative to ASME Section XI Requirements for Replacement of Class 3 Buried Piping Project stage: Request ULNRC-05553, Follow-up Information Regarding 10CFR50.55a Request: Proposed Alternative to ASME Section XI Requirements for Replacement of Class 3 Buried Piping (TAC No. MD67920)2008-10-0909 October 2008 Follow-up Information Regarding 10CFR50.55a Request: Proposed Alternative to ASME Section XI Requirements for Replacement of Class 3 Buried Piping (TAC No. MD67920) Project stage: Request ML0826400072008-10-31031 October 2008 Relief Request I3R-10 for Use of Polyethylene Pipe in Lieu of Carbon Steel Pipe in Buried Essential Service Water Piping System Project stage: Acceptance Review ML0831002882008-11-0707 November 2008 Relief Request 13R-10 Approved on October 31, 2008, for Third 10-Year Inservice Inspection Interval for Use of Polyethylene Pipe in Lieu of Carbon Steel Pipe in Buried Essential Service Water Piping System Project stage: Acceptance Review ULNRC-05563, One-Time Completion Time Extension for Essential Service Water System2008-12-0101 December 2008 One-Time Completion Time Extension for Essential Service Water System Project stage: Other ML0834503272008-12-19019 December 2008 Summary of Meeting with Representatives of Union Electric Company, Licensee for Callaway Plant, Unit 1 Second Round of Requests for Information, Extension of Completion Time for Essential Service Water Systems (TAC Nos. MD6792 & MD7252) Project stage: Meeting ULNRC-06115, CFR 50.55a Request: Proposed Alternative to ASME Section XI Alternative Technical Requirements for Class 3 Buried Piping2014-06-10010 June 2014 CFR 50.55a Request: Proposed Alternative to ASME Section XI Alternative Technical Requirements for Class 3 Buried Piping Project stage: Request 2008-02-29
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Category:Letter type:ULNRC
MONTHYEARULNRC-06853, Submittal of 2023 Fitness for Duty Performance Data Per Per 10 CFR 26.7172024-01-29029 January 2024 Submittal of 2023 Fitness for Duty Performance Data Per Per 10 CFR 26.717 ULNRC-06847, Supplement to Relief Request from Requirements of ASME BPV Code, Section XI, Subsection Iwl Regarding Examination and Testing of the Unbonded Post-Tensioning System (Relief Request C3R-01)2023-12-21021 December 2023 Supplement to Relief Request from Requirements of ASME BPV Code, Section XI, Subsection Iwl Regarding Examination and Testing of the Unbonded Post-Tensioning System (Relief Request C3R-01) ULNRC-06849, License Renewal Resolution for Commitments 34 and 35 Perform Evaluation of Crack Initiation and Propagation in Steam Generator Divider Plate and Tube-To-Tubesheet Welds2023-12-20020 December 2023 License Renewal Resolution for Commitments 34 and 35 Perform Evaluation of Crack Initiation and Propagation in Steam Generator Divider Plate and Tube-To-Tubesheet Welds ULNRC-06844, Request for Exemption from Specific Requirements in 2023 Security Rule, Enhanced Weapons, Firearms Background Checks, and Security Event Notification2023-12-0707 December 2023 Request for Exemption from Specific Requirements in 2023 Security Rule, Enhanced Weapons, Firearms Background Checks, and Security Event Notification ULNRC-06827, Supplement to License Amendment Request Regarding Support System Requirements for Residual Heat Removal and Control Room Air Conditioning Systems Under Technical Specifications 3.4.8, 3.7.11, and 3.9.6 (LDCN 22-0029)2023-11-20020 November 2023 Supplement to License Amendment Request Regarding Support System Requirements for Residual Heat Removal and Control Room Air Conditioning Systems Under Technical Specifications 3.4.8, 3.7.11, and 3.9.6 (LDCN 22-0029) ULNRC-06824, Response to Request for Additional Information Regarding Operating Quality Assurance Manual (Oqam) Revision 36A2023-08-17017 August 2023 Response to Request for Additional Information Regarding Operating Quality Assurance Manual (Oqam) Revision 36A ULNRC-06830, Transmittal of Updated Technical Specification Markup and Clean Pages for License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak2023-08-15015 August 2023 Transmittal of Updated Technical Specification Markup and Clean Pages for License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak ULNRC-06223, Minor Correction to License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate Test Frequencies (LDCN 2020-0004)2023-07-25025 July 2023 Minor Correction to License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate Test Frequencies (LDCN 2020-0004) ULNRC-06799, Submittal of Licensee Event Report 2022-003-01, Class 1E Electrical Air Conditioning System Thermal Expansion Valve Failure Resulted in Condition Prohibited by Technical Specifications2023-07-13013 July 2023 Submittal of Licensee Event Report 2022-003-01, Class 1E Electrical Air Conditioning System Thermal Expansion Valve Failure Resulted in Condition Prohibited by Technical Specifications ULNRC-06821, Post-Audit Follow-Up Information in Support of Callaway'S License Amendment Request and Proposed Exemption to Allow Use of Framatome Gaia Fuel (LDCN 22-0002) (EPID L-2022-LLA-0150 and EPID L-2022-LLE-00301)2023-06-21021 June 2023 Post-Audit Follow-Up Information in Support of Callaway'S License Amendment Request and Proposed Exemption to Allow Use of Framatome Gaia Fuel (LDCN 22-0002) (EPID L-2022-LLA-0150 and EPID L-2022-LLE-00301) ULNRC-06822, Additional Information Regarding Request for NRC Approval of Operating Quality Assurance Manual (Oqam) Revision 36a2023-06-14014 June 2023 Additional Information Regarding Request for NRC Approval of Operating Quality Assurance Manual (Oqam) Revision 36a ULNRC-06815, Request for NRC Approval of Operating Quality Assurance Manual, Revision 36a2023-06-0505 June 2023 Request for NRC Approval of Operating Quality Assurance Manual, Revision 36a ULNRC-06818, Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate .2023-06-0505 June 2023 Response to Request for Additional Information Regarding License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate . ULNRC-06816, Withdrawal of Previously Submitted Enclosures Regarding License Amendment Request for Adoption of Alternative Source Term and Revision of Technical Specifications (LDCN 21-0015)2023-05-0909 May 2023 Withdrawal of Previously Submitted Enclosures Regarding License Amendment Request for Adoption of Alternative Source Term and Revision of Technical Specifications (LDCN 21-0015) ULNRC-06812, Submittal of 2022 Annual Radiological Environmental Operating Report2023-04-27027 April 2023 Submittal of 2022 Annual Radiological Environmental Operating Report ULNRC-06806, Submittal of Radiological Emergency Response Plan, Revision 552023-04-12012 April 2023 Submittal of Radiological Emergency Response Plan, Revision 55 ULNRC-06807, Submittal of Single Positive Test Forms2023-04-0303 April 2023 Submittal of Single Positive Test Forms ULNRC-06798, Submittal of Status of Plant Decommissioning Funding and ISFSI Decommissioning Funding Plan2023-03-30030 March 2023 Submittal of Status of Plant Decommissioning Funding and ISFSI Decommissioning Funding Plan ULNRC-06801, CFR 50.46 Annual Report Regarding ECCS Evaluation Model Revisions2023-03-30030 March 2023 CFR 50.46 Annual Report Regarding ECCS Evaluation Model Revisions ULNRC-06804, Submittal of Nuclear Property Insurance Reporting2023-03-29029 March 2023 Submittal of Nuclear Property Insurance Reporting ULNRC-06751, Application to Revise Technical Specifications to Adopt TSTF-501-A, Rev. 1, Relocate Stored Oil & Lube Oil Volume Values to Licensee Control2023-03-29029 March 2023 Application to Revise Technical Specifications to Adopt TSTF-501-A, Rev. 1, Relocate Stored Oil & Lube Oil Volume Values to Licensee Control ULNRC-06803, Submittal of Response to Request for Additional Information Regarding Results of Steam Generator Tube In-Service Inspection2023-03-29029 March 2023 Submittal of Response to Request for Additional Information Regarding Results of Steam Generator Tube In-Service Inspection ULNRC-06805, Transmittal of Special Report 2023-02 Non-Functionality of Containment Hydrogen Analyzer Channel for Greater than 30 Days2023-03-21021 March 2023 Transmittal of Special Report 2023-02 Non-Functionality of Containment Hydrogen Analyzer Channel for Greater than 30 Days ULNRC-06802, Special Report 2023-01 (PAM Report); Non-Functionality of a Post-Accident Monitoring Instrument2023-03-0909 March 2023 Special Report 2023-01 (PAM Report); Non-Functionality of a Post-Accident Monitoring Instrument ULNRC-06795, Submittal of Fitness for Duty Reports for 2022, Including Single Positive Test Forms2023-01-24024 January 2023 Submittal of Fitness for Duty Reports for 2022, Including Single Positive Test Forms ULNRC-06794, Submittal of Fitness for Duty Program Data for 20222023-01-24024 January 2023 Submittal of Fitness for Duty Program Data for 2022 ULNRC-06787, Response to Request for Additional Information Regarding License Amendment Request for Adoption of Alternate Source Term and Revision of Technical Specifications (LDCN 21-0015)2022-12-0808 December 2022 Response to Request for Additional Information Regarding License Amendment Request for Adoption of Alternate Source Term and Revision of Technical Specifications (LDCN 21-0015) ULNRC-06781, License Amendment Request to Clarify Support System Requirements for the Residual Heat Removal System and Control Room Air Conditioning System Under Technical Specifications 3.4.8, 3.7.11, and 3.9.6 (LDCN 22-0029)2022-12-0101 December 2022 License Amendment Request to Clarify Support System Requirements for the Residual Heat Removal System and Control Room Air Conditioning System Under Technical Specifications 3.4.8, 3.7.11, and 3.9.6 (LDCN 22-0029) ULNRC-06780, Additional Supplement to License Amendment Request to Adopt TSTF-439 and TSTF-505, LDCN 20-0072022-11-30030 November 2022 Additional Supplement to License Amendment Request to Adopt TSTF-439 and TSTF-505, LDCN 20-007 ULNRC-06772, 10 CFR 50.59 and 10 CFR 72.48 Summary Report2022-11-23023 November 2022 10 CFR 50.59 and 10 CFR 72.48 Summary Report ULNRC-06777, Operating Quality Assurance Manual (Oqam) Revision 362022-11-16016 November 2022 Operating Quality Assurance Manual (Oqam) Revision 36 ULNRC-06779, ULNRC-06779: Contesting of Green NCV 05000483/2022010-03, Failure to Perform Required Inservice Testing of Residual Heat Removal Heat Exchanger Pneumatically (Air) Operated Outlet and Bypass Valves2022-11-14014 November 2022 ULNRC-06779: Contesting of Green NCV 05000483/2022010-03, Failure to Perform Required Inservice Testing of Residual Heat Removal Heat Exchanger Pneumatically (Air) Operated Outlet and Bypass Valves ULNRC-06765, License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate Testing Frequencies (LDCN 2020-0004)2022-11-0303 November 2022 License Amendment Request to Revise Technical Specification 5.5.16, Containment Leakage Rate Testing Program, for Permanent Extension of Type a and Type C Leak Rate Testing Frequencies (LDCN 2020-0004) ULNRC-06773, Results of Steam Generator Tube In-Service Inspection2022-11-0101 November 2022 Results of Steam Generator Tube In-Service Inspection ULNRC-06775, Submittal of Non-Functionality of Loose-Part Detection System Channel for Greater than 30 Days2022-10-27027 October 2022 Submittal of Non-Functionality of Loose-Part Detection System Channel for Greater than 30 Days ULNRC-06771, Correction to Application to Revise Technical Specifications to Adopt TSTF 577, Revised Frequencies for Steam Generator Tube Inspections (LDCN 21-0013)2022-10-25025 October 2022 Correction to Application to Revise Technical Specifications to Adopt TSTF 577, Revised Frequencies for Steam Generator Tube Inspections (LDCN 21-0013) ULNRC-06770, Cycle 25 Commitment Change Summary Report2022-10-19019 October 2022 Cycle 25 Commitment Change Summary Report ULNRC-06766, Correction of Text Contained in Enclosures Provided with Supplements to Request for License Amendment and Regulatory Exemptions for a Risk-Informed Approach to Address GSI-191 and Respond to GL 2004-02 (LDCN 19-0014)2022-09-0808 September 2022 Correction of Text Contained in Enclosures Provided with Supplements to Request for License Amendment and Regulatory Exemptions for a Risk-Informed Approach to Address GSI-191 and Respond to GL 2004-02 (LDCN 19-0014) ULNRC-06767, Presentation Information for Pre-Application Meeting Regarding New License Amendment Request for Use of Framatome Fuel Assemblies2022-09-0606 September 2022 Presentation Information for Pre-Application Meeting Regarding New License Amendment Request for Use of Framatome Fuel Assemblies ULNRC-06764, Revised Response to Request for Additional Information Regarding License Amendment Request for Adoption Off Alternate Source Term and Revision of Technical Specifications (LDCN 21-0015)2022-09-0101 September 2022 Revised Response to Request for Additional Information Regarding License Amendment Request for Adoption Off Alternate Source Term and Revision of Technical Specifications (LDCN 21-0015) ULNRC-06763, Supplement to Application to Revise Technical Specifications to Adopt TSTF 577, Revised Frequencies for Steam Generator Tube Inspection (LDCN 21-0013)2022-09-0101 September 2022 Supplement to Application to Revise Technical Specifications to Adopt TSTF 577, Revised Frequencies for Steam Generator Tube Inspection (LDCN 21-0013) ULNRC-06762, Submittal of Owner'S Activity Reports (OAR-1 Forms) for Cycle/Refuel 252022-08-25025 August 2022 Submittal of Owner'S Activity Reports (OAR-1 Forms) for Cycle/Refuel 25 ULNRC-06758, Union Electric Co. - Renewed Facility Operating License NPF-30, Withdrawal of License Amendment Request and Exemption Request Regarding Transition to Framatome Fuel (LDCN 22-0002)2022-08-0404 August 2022 Union Electric Co. - Renewed Facility Operating License NPF-30, Withdrawal of License Amendment Request and Exemption Request Regarding Transition to Framatome Fuel (LDCN 22-0002) ULNRC-06755, Response to Requests for Additional Information for Proposed Revision to Radiological Emergency Response Plan Regarding Response and Notification Goals2022-07-13013 July 2022 Response to Requests for Additional Information for Proposed Revision to Radiological Emergency Response Plan Regarding Response and Notification Goals ULNRC-06754, Response to Request for Additional Information Regarding Licensee Amendment Request for Adoption of Alternate Source Term and Revision of Technical Specifications2022-07-0505 July 2022 Response to Request for Additional Information Regarding Licensee Amendment Request for Adoption of Alternate Source Term and Revision of Technical Specifications ULNRC-06739, Post-Audit Supplement to License Amendment Request to Adopt TSTF-439 and TSTF-505 (LDCN 20-0007)2022-06-30030 June 2022 Post-Audit Supplement to License Amendment Request to Adopt TSTF-439 and TSTF-505 (LDCN 20-0007) ULNRC-06752, Evacuation Time Estimates Report2022-06-27027 June 2022 Evacuation Time Estimates Report ULNRC-06753, Presentation Information for Pre-Submittal Meeting Regarding Updated Spent Fuel Criticality Safety Analysis2022-06-23023 June 2022 Presentation Information for Pre-Submittal Meeting Regarding Updated Spent Fuel Criticality Safety Analysis ULNRC-06750, Submittal of Cycle 26 Core Operating Limits Report (COLR)2022-06-13013 June 2022 Submittal of Cycle 26 Core Operating Limits Report (COLR) ULNRC-06735, Response to Request for Additional Information Regarding Request for License Amendment and Regulatory Exemptions for Risk-Informed Approach to Address GSI-191 and Respond to Generic Letter 2004-02 (LDCN 19-0014).2022-05-27027 May 2022 Response to Request for Additional Information Regarding Request for License Amendment and Regulatory Exemptions for Risk-Informed Approach to Address GSI-191 and Respond to Generic Letter 2004-02 (LDCN 19-0014). 2024-01-29
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Text
AmerenUE P0 Box 620 Cal/away Plant Fulton, MO 65251 July 24, 2008 U.S. Nuclear Regulatory Commission Attn: Document Control Desk Mail Stop P1-137 Washington, DC 20555-0001 ULNRC-05529 g meen Ladies and Gentlemen:
DOCKET NUMBER 50-483 CALLAWAY PLANT UNIT 1 UNION ELECTRIC CO.
FACILITY OPERATING LICENSE NPF-30 10CFR50.55a REQUEST: PROPOSED ALTERNATIVE TO ASME SECTION XI REQUIREMENTS FOR REPLACEMENT OF CLASS 3 BURIED PIPING - (TAC NUMBER MD6792)
References:
- 1. ULNRC-05434 dated August 30, 2007
- 2. ULNRC-05490 dated April 17, 2008
- 3. ULNRC-05517 dated July 10, 2008 In Reference 1 cited above, Union Electric Company (AmerenUE) submitted Relief Request 13R- 10 regarding paragraph IWA-422 1(b) of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code,Section XI. The relief request, which is still under review by the NRC staff, was requested to support the planned replacement of buried steel piping in Callaway's essential service water (ESW) system with high-density polyethylene (HDPE) piping.
In References 2 and 3, AmerenUE responded to various questions and requests for additional information received from various NRC Branch reviewers. More recently, during a teleconference between AmerenUE and the NRC held on July 17, 2008, the NRC reviewers requested additional clarifying information. In responding to these requests, AmerenUE has revised a few pages of Enclosure 5 that was transmitted to the NRC as part of the letter submitted on July 10, 2008 (Reference 3). In the July 10, 2008 letter, Enclosure 5 provided the NRC with an updated and final version of the relief request document itself, 10CFR50.55a Request Number I3R-10, that had been provided in the initial relief request letter submitted to the NRC on August 30, 2007 (Reference 1). As agreed upon in the July 17, 2008 teleconference (and in lieu a subsidiary of Ameren Corporation
ULNRC-05529 July 24, 2008 Page 2 of resubmitting Enclosure 5 in its entirety), only the revised pages are hereby provided as Attachment 1 to this letter. Note that the revisions on each page have been highlighted.
Subsequent to the teleconference held on July 17, 2008, AmerenUE received an e-mail dated July 21, 2008 from the NRC requesting an additional clarifying information item. The response to this e-mail is also attached to this current letter as .
There are no additional commitments made within this submittal.
If you have any questions on this letter or its attachments, please contact Mr. Scott Maglio at (573) 676-8719.
Very truly yours, Luke H. Graessle Manager, Regulatory Affairs DJW/TBE/nls Attachments: 1 - Revised Pages of Enclosure 5 to letter ULNRC-05517 dated July 10, 2008 2 - Improved Hydraulic Performance Attributed to Use of HDPE Piping
ULNRC-05529 July 24, 2008 Page 3 cc: U.S. Nuclear Regulatory Commission (Original and 1 copy)
Attn: Document Control Desk Mail Stop P1-137 Washington, DC 20555-0001 Mr. Elmo E. Collins, Jr.
Regional Administrator U.S. Nuclear Regulatory Commission Region IV 611 Ryan Plaza Drive, Suite 400 Arlington, TX 76011-4005 Senior Resident Inspector Callaway Resident Office U.S. Nuclear Regulatory Commission 8201 NRC Road Steedman, MO 65077 Mr. Mohan C. Thadani (2 copies)
Licensing Project Manager, Callaway Plant Office of Nuclear Reactor Regulation U. S. Nuclear Regulatory Commission Mail Stop O-8G14 Washington, DC 20555-2738
ULNRC-05529 July 24, 2008 Page 4 Index and send hardcopy to QA File A160.0761 Hardcopy:
Certrec Corporation 4200 South Hulen, Suite 630 Fort Worth, TX 76109 (Certrec receives ALL attachments as long as they are non-safeguards and may be publicly disclosed.)
Electronic distribution for the following can be made via Responses and Reports ULNRC Distribution:
A. C. Heflin F. M. Diya T. E. Herrmann S. M. Maglio T. B. Elwood L. H. Graessle S. L. Gallagher L. M. Belsky (NSRB)
R. D. Myatt w/o C. R. Kiefer w/o M. D. Brandes w/o J. E. O'Sullivan w/o G. G. Yates w/o D. J. Walker w/o Mr. Ron Reynolds, Director (SEMA)
Mr. Edward Gray, Senior REP Planner (SEMA)
Mr. John Campbell, REP Planner (SEMA)
Ms. Diane M. Hooper (WCNOC)
Mr. Dennis Buschbaum (TXU)
Mr. Scott Bauer (Palo Verde)
Mr. Stan Ketelsen (PG&E)
Mr. Scott Head (STP)
Mr. John O'Neill (Pillsbury Winthrop Shaw Pittman LLP)
Mr. Floyd Gilzow (DNR) to ULNRC-05529 ATTACHMENT 1 REVISED PAGES OF ENCLOSURE 5 TO LETTER ULNRC-05517 DATED JULY 10, 2008
P = internal gage pressure coincident with given service level or loading, psi PD= internal design gage pressure at the specified design temperature. psi lb/ft2 PE = vertical soil pressure loads due to weight cover of earth, Phydro = external hydrostatic pressure, equal to earth plus groundwater pressure plus surcharge load, psi 2 PL = vertical soil pressure due to surcharge loads, lb/ft R = buoyancy reduction factor S = allowable stress, psi, Table 3021-1 TD= Design Temperature, deg F t = nominal pipe wall thickness, in tdesign = minimum required wall thickness, in t fab min = minimum thickness in accordance with ASTM F-714 tmin = pressure design thickness, in W, = weight of contents (equals 0 when empty), lb/ft Wp = weight of pipe per unit length, lb/ft (exclude weight of contained liquid to represent the worst case of an empty pipe)
Ww = weight of water displaced by pipe, per unit length, lb/ft c = coefficient of thermal expansion, 1/°F CSW= circumferential compressive stress in the sidewalls, psi AP = differential pressure due to negative internal pressure, psi ATeq = equivalent temperature rise, deg.F Esoil = maximum soil strain due to seismic wave passage Q = ring deflection
= maximum allowable change in diameter as a per cent of the original diameter, commonly called the change in ring diameter, 3 Table 3031-1 Psaturated = density of saturated soil, lb/ft 3
Pdry = density of dry soil, lb/ft v = Poisson ratio (0.35 for short duration loads (5 min. or less) to 0.45 for long duration loads(greater than 5 min.))
-3012 Design Life (a) The Design Specification shall specify the design life of the system, not to exceed 50 years.
(b) The duration of load shall be specified for each load case, and the HDPE pipe physical and mechanical properties shall be based on the duration of load.
-3016 Design and Service Loading Design loads shall be as defined in ASME Section III, ND-3112.1 through ND-3112.3, except the design factor shall be 0.50. Miner's Rule in accordance with ISO 13760 shall be used to account for operation for 30 days at post-accident conditions and normal operating conditions for the balance of the 40 year design life. Loads applied to buried HDPE pipe shall be defined in the Design Specification, and shall include, as a minimum, the following:
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FaE = axial force range due to the combined effects of seismic wave passage, seismic soil movement, and building seismic anchor motion effects, lb A = cross-section area of pipe at the pipe section where the force is calculated, in ME = resultant moment range due to the combined effects of seismic wave passage, seismic soil movement, and building seismic anchor motion effects, in-lb Z = section modulus of pipe cross section at the pipe section where the moment is calculated, in' S = allowable stress, psi, Table 3021-1 Seismic wave passage, seismic soil movement, and building seismic anchor motions shall be combined by square root sum of the squares or by algebraic sum.
Supplement 3 provides a non-mandatory method for the analysis of seismic wave passage, seismic soil movement, and building seismic anchor motion effects,
-3060 Design for Future Internal Access Removable spools will be installed that would provide future access to the ID surfaces in each replacement line should suitable remote examination equipment be developed.
-4000 FABRICATION AND INSTALLATION
-4100 GENERAL REQUIREMENTS
-4110 Scope This Article provides the requirements for the installation of PE piping and fittings. Methods of installation shall be by thermal fusion and flanged fittings. Use of threaded or adhesive joints with HDPE material is not permitted. All metallic interface components will be installed following the requirements of ASME Section III, Subsection ND.
-4120 Examinations
[Deleted]
-4130 REPAIR OF MATERIAL HDPE material originally accepted on delivery in which defects exceeding the limits of -2300 are known or discovered during the process of fabrication or installation is unacceptable. The HDPE material may be used provided the defective area can be physically removed from the material or repaired in accordance with -2300.
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AmerenUE shall maintain records of qualified fusing procedures and the fusion machine operators qualified by them, showing the date and results of tests and the identification mark assigned to each fusing operator. These records shall be reviewed, verified, and signed by an authorized individual and they shall be accessible to the Authorized Nuclear Inspector.
-4323 Fusing Prior to Qualification Fusing Procedure Specification (FPS) shall be qualified as required by Supplement 9 prior to their use. Only fusing operators who are qualified in accordance with -4320 and Supplement 9 shall be used.
-4324 Transferring Qualifications The FPS qualifications and performance qualification tests for fusion machine operators shall not be transferred to another organization.
-4330 Requirements for Fusing Procedure Qualification Tests
-4331 Conformance to Supplement 9 Requirements All fusing procedure qualification tests shall be in accordance with the requirements of Supplement 9 as supplemented or modified by the requirements of this document.
-4332 Preparations of Test Coupons and Specimens Removal of test coupons from the fusion test coupons and the dimensions of specimens made from them shall conform to the requirements of Supplement 9.
-4340 Performance Demonstration
-4341 AmerenUE will produce six (6) fusion joint test coupons of 36NPS DR 9.5 and six (6) fusion joint test specimens of 4NPS DR 9 material on each model of fusion machine carriage expected to be used in production for the respective size of piping as a performance demonstration. Three (3) of these fusions on each machine will target minimum temperature and interfacial pressure using maximum heater removal times, and three (3) will target maximum temperature and interfacial pressure using minimal heater removal times - considering production limits, machine capabilities and the limits of the AmerenUE Fusion Procedure Specification.
-4342 A minimum of four (4) specimens will be cut from each fusion joint coupon approximately 90 degrees apart and tensile-tested to verify that the fusion joint is stronger than the pipe. Testing will be performed by commercial plastics industry suppliers without a 10 CFR 50 Appendix B quality program, but all testing will be overseen by AmerenUE representatives, and the test records will be retained in permanent Callaway records.
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-4343 High speed impact tensile testing for the 4NPS and 36 NPS specimens will be performed in accordance with QF-131. If this testing is determined to be inconclusive for the 36NPS specimens due to fast tensile machine capability and the need to test segmented specimens, tensile testing for the 36 NPS specimens will be performed with full-section specimens consistent with ASTM Specification D638, "Standard Test Method for tensile Properties of Plastic."
-4400 RULES GOVERNING MAKING FUSED JOINTS
-4410 General requirements
-4411 Identification, Storage, and Handling of HDPE Materials AmerenUE is responsible for control of the HDPE materials that are used in the fabrication and installation of components (-4120). Suitable identification, storage, and handling of HDPE material shall be maintained.
-4412 Cleanliness and Protection of Surfaces to Be Fused The surfaces of the heater used for fusing shall be free of scale, rust, oil, grease, and other deleterious material. The work shall be protected from deleterious contamination and from rain, snow, and wind during fusing operations. Fusing shall not be performed on wet surfaces.
Fusing will not be performed below 50 deg F. Any fusing performed below ambient temperature of 50'F will require an environmental enclosure to be placed over the work area to control temperature.
-4420 Rules For Making Fused Joints
-4421 Fused Joint Fit-up Requirements (a) Components of different outside diameters shall not be fused together.
(b) The alignment of components for open butt fusion joints will be held in position by the fusing machine, allowable surface mismatch shall be less than 10% of the minimum wall thickness of the components being fused, and the remaining joint thickness shall not be less than the required as-fabricated minimum wall thickness per ASTM F714 - unless evaluated and determined to be acceptable considering the remaining wall thickness c) To fuse components with differing DR's, the component with the smaller DR shall be countered-bored and tapered to meet the wall thickness of the component with the larger DR and shall comply with Figure -4421.3-1 18
dimensions and relative locations, simulating flaws expected to occur in unacceptable joints.
(c) Personnel performing TOFD examinations will be qualified in accordance with SNT-TC-1A (Level II, minimum) or equivalent, as determined by AmerenUE.
(d) Acceptance criteria will be evaluated and refined by AmerenUE, and will be based on industry standards (e.g. B31 piping codes). The current acceptance criteria require that any unbonded area in the joint, found as a result of the TOFD, is cause for rejection.
(e) All TOFD joint examination records shall be retained as permanent records.
-5300 ACCEPTANCE STANDARDS
-5310 General Requirements Unacceptable joints shall be removed. Repair of unacceptable joints is not permitted.
-5320 VisualExamination Acceptance Criteria of external surfaces
-5321 Thermal fusion butt joints shall meet the following:
(a) Joints shall exhibit proper fusion bead configuration, see Supplement 5.
(b) There shall be no evidence of cracks or incomplete fusion.
Except for mitered joints, joints shall not be visually angled or off-set. The ovality offset shall be less than 10% of the minimum wall thickness of the fused components provided the remaining joint thickness is not be less than the required as-fabricated minimum wall thickness per ASTM F714 - unless evaluated and determined to be acceptable considering the remaining wall thickness.
(c) The cleavage between fusion beads shall not extend to or below the outside diameter pipe surface (see Figure -5321-1).
(d) For mitered joints, the beads may flare out instead of roll back to the pipe surface, and/or may exhibit multiple beads or heavy beads with no cleavage. In either case, there must be evidence of melt flow around the complete interior and exterior circumference of the joint. Refer to Supplement 5.
23
((b)
Pipe (Cross Section Woew) HPEPipe (Cross Section View)
Visually Acceptable - Uniform Bead around pipe Visually Acceptable - Non-uniform Bead around pipe (c) (d) Cleavage tip shall 11o meet or extend t -DPE Pipe (Cross Section Wow) HOPE Pipe (Cross Section View)
Visually Acceptable - Non4m[foml Bead around pipe Visually Unacceptable - Now-uniform/Ualform Bead Localize diameter mismaltct less than 10% ol the wall around pipe - V-Groove too deep at pipe-tangent FIGURE -5321-1 (e) Review the data acquisition record for the joint and compare it to the Fusion Procedure Specification (FPS) to ensure the proper parameters and procedures were followed in making the fused joint, see paragraph -5330.
-5330 Process Verification The data acquisition record for each joint shall be reviewed and compared to the Fusion Procedure Specification (FPS) to ensure the proper parameters and procedures were followed in making the fused joint.
-5500 QUALIFICATION OF NONDESTRUCTIVE EXAMINATION PERSONNEL
-5510 General Requirements
[Deleted]
-5520 Personnel Qualification Requirements (a) Personnel performing visual examinations required by -5200 (a) and (b) shall be qualified and certified as a VT-I in accordance with IWA-2000 and shall receive the required training and evaluation in paragraph -5100(b) & (c).
24 to ULNRC-05529 Page 1 of 2 ATTACHMENT 2 Improved Hydraulic Performance Attributed to Use of HDPE Piping NRC Request for Additional Clarifying Information:
In the public meeting conducted at the NRC offices on July 1, 2008, there was discussion about the improved hydraulic performance that would be effected for the ESW system by the HDPE piping. Provide a summary/explanation of that improved hydraulic performance.
AmerenUE Response:
The following information is extracted from publicly available documentation (Plastics Pipe Institute - PPI- http://plasticpipe.org). The information supports the improved hydraulic performance of HDPE pipe.
- 1) From the PPI Handbook for HDPE piping: "Hydraulically Efficient - For water applications, HDPE pipe's Hazen Williams C factor is 150 and does not change over time. The C factor for other typical pipe materials such as PVC or ductile iron systems declines dramatically over time due to corrosion and tuberculation or biological build-up. Without corrosion, tuberculation, or biological growth HDPE pipe maintains its smooth interior wall and its flow capabilities indefinitely to insure hydraulic efficiency over the intended design life."
- 2) From PPI Technical Report TR-14, "Water Flow Characteristics Of Thermoplastic Pipe":
- a. "During the past 30 years, the use of thermoplastic piping in water and sewer systems has increased significantly. There are many reasons for this wide acceptance, but one of the primary characteristics which makes thermoplastic piping attractive to designers is the low resistance to flow that this piping offers."
- b. "...a Hazen-Williams Flow Factor of 150 is recommended for thermoplastic pipes. This value is based upon laboratory tests and field experience. Test results have yielded higher values in the range of 155 to 165, but the use of a value of 150 is conservative in nature and, therefore, aids in providing a further factor of safety to the design."
to ULNRC-05529 Page 2 of 2
- c. "Contrary to the experience with some other piping products, no allowance for corrosion and, therefore, subsequent lowering of flow capacity, has to be included in the Tables that are used in this report. Field experience in North America and Europe over the past 30 years indicates that the flow characteristics in older thermoplastic lines are essentially unchanged over time.
The use of a higher Hazen-Williams coefficient of 150 for HDPE, versus the Hazen Williams coefficient of 100 for new steel piping (older piping with corrosion typically has a lower Hazen Williams coefficient of 80-90), and the lack of corrosion for the HDPE reveals the decreased resistance to flow afforded by the HDPE material.