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MONTHYEARML23341A1902023-12-0707 December 2023 Enclosujustification for Exemption Request from Specific Requirements in 2023 Security Rule ML23354A1132023-10-26026 October 2023 Off-Site Liaison Coordinator Checklist ML23354A1112023-10-26026 October 2023 Logistics Support Coordinator Checklist ML23354A1092023-10-26026 October 2023 Protective Measures Coordinator Checklist ML24002A8132023-07-25025 July 2023 EIP-ZZ-00240 Add E, Rev. 28, Health Physics Coordinator (Hpc) Checklist ML23164A0262023-05-18018 May 2023 Procedure Review Form - Emergency Coordinator (EC) Checklist ML23150A1872023-05-18018 May 2023 Submittal of EIP-ZZ-00240 Addendum H, Revision 008, Security Coordinator Checklist ML23150A1902023-05-18018 May 2023 Submittal of EIP-ZZ-00245 Addendum H, Revision 004, Security Coordinator Checklist for the Alternate Tsc/Osa Assembly Area ML22153A1922022-06-0202 June 2022 Enclosure 3 - List of Commitments ML22034A3972022-02-16016 February 2022 Enclosure 2 - IP 92707 CY2021 - IR 8 Baseline Inspection Completion ML22034A3952022-02-16016 February 2022 Enclosure 3 - IP 96001 CY2021 - IR 8 Baseline Inspection Completion ML22034A3992022-02-16016 February 2022 Enclosure 1 - IP 71130.03 Cy 2021 - IR 8 Baseline Inspection Completion ML21335A4612021-12-0101 December 2021 Enclosure 9: ARCON96-NAI Input Run Specifications ML21335A4632021-12-0101 December 2021 Enclosure 11: ARCON96-NAI Output Cumulative Frequency Distribution Results ML21335A4542021-12-0101 December 2021 Enclosure 2: Full Scope Implementation of Alternative Source Term - Evaluation of Proposed Changes ML21335A4622021-12-0101 December 2021 Enclosure 10: ARCON96-NAI Output Summary Logs ML21335A4642021-12-0101 December 2021 Enclosure 12: PAVAN-NAI Input Meteorological Data and Run Specifications for Reactor Building and Refueling Water Storage Tank Releases Evaluated at Exclusion Area Boundary and Low Population Zone Boundary ML21335A4652021-12-0101 December 2021 Enclosure 13: PAVAN-NAI Output for Reactor Building and Refueling Water Storage Tank Releases Evaluated at Exclusion Area Boundary and Low Population Zone Boundary ML21335A4662021-12-0101 December 2021 Enclosure 14: Summary of Differences Between ARCON96 and ARCON96-NAI and Between Pavan and PAVAN-NAI Codes ML21090A1892021-03-31031 March 2021 Enclosure 4 - Acronyms and Definitions ULNRC-06604, Enclosure - Callaway Energy Center Form OAR-1 Owner'S Activity Report2020-10-22022 October 2020 Enclosure - Callaway Energy Center Form OAR-1 Owner'S Activity Report ML20080H2382020-03-17017 March 2020 Enclosure - Nuclear Property Insurance NRC Property Rule 10 CFR 50.54(W) Reporting Requirements ML19325D6712019-11-21021 November 2019 Attachment 1 - Callaway Regulatory Commitment Update ML19225D3232019-08-12012 August 2019 Attachment 1 - List of Regulatory Commitments ML19024A4712019-01-23023 January 2019 Attachment 1 - NRC Audit Questions and Responses ML19024A4752019-01-23023 January 2019 Attachment 5 - List of Regulatory Commitments ML17097A5672017-04-0101 April 2017 joy-nv Callaway, Unit 1 - Enclosure 5 to ULNRC-06349 - Application for Approval of Decommissioning Cost Estimate for Callaway Energy Center and Funding Level of Nuclear Decommissioning Trust Fund ULNRC-06349, joy-nv Callaway, Unit 1 - Enclosure 5 to ULNRC-06349 - Application for Approval of Decommissioning Cost Estimate for Callaway Energy Center and Funding Level of Nuclear Decommissioning Trust Fund2017-04-0101 April 2017 joy-nv Callaway, Unit 1 - Enclosure 5 to ULNRC-06349 - Application for Approval of Decommissioning Cost Estimate for Callaway Energy Center and Funding Level of Nuclear Decommissioning Trust Fund ML17362A0642017-02-10010 February 2017 Enclosure 7: Ameren Corporation by - Laws Effective 02/10/2017 ULNRC-06400, Enclosure 7: Ameren Corporation by - Laws Effective 02/10/20172017-02-10010 February 2017 Enclosure 7: Ameren Corporation by - Laws Effective 02/10/2017 ML17097A5662016-12-31031 December 2016 Enclosure 4 to ULNRC-06349 - Statement of Net Assets Available for Benefits ULNRC-06349, Callaway, Unit 1 - Enclosure 4 to ULNRC-06349 - Statement of Net Assets Available for Benefits2016-12-31031 December 2016 Callaway, Unit 1 - Enclosure 4 to ULNRC-06349 - Statement of Net Assets Available for Benefits ML16348A3762016-12-13013 December 2016 Enclosure 3 - 2016 Proxy Statement of Ameren Corporation ULNRC-06341, Callaway Plant Unit 1 - Enclosure 3 - 2016 Proxy Statement of Ameren Corporation2016-12-13013 December 2016 Callaway Plant Unit 1 - Enclosure 3 - 2016 Proxy Statement of Ameren Corporation ULNRC-06341, Callaway Plant Unit 1 - Enclosure 8 - 10-Q Filed Period 9/30/20162016-09-30030 September 2016 Callaway Plant Unit 1 - Enclosure 8 - 10-Q Filed Period 9/30/2016 ML16348A3822016-09-30030 September 2016 Enclosure 8 - 10-Q Filed Period 9/30/2016 ULNRC-06341, Callaway Plant Unit 1 - Enclosure 7 - 10-Q Filed Period 6/30/20162016-06-30030 June 2016 Callaway Plant Unit 1 - Enclosure 7 - 10-Q Filed Period 6/30/2016 ML16348A3812016-06-30030 June 2016 Enclosure 7 - 10-Q Filed Period 6/30/2016 ULNRC-06341, Callaway Plant Unit 1 - Enclosure 14 - Schedule 14C Information for Union Electric Company - March 20162016-03-31031 March 2016 Callaway Plant Unit 1 - Enclosure 14 - Schedule 14C Information for Union Electric Company - March 2016 ML16348A3802016-03-31031 March 2016 Enclosure 6 - 10-Q Filed Period 3/31/2016 ULNRC-06341, Callaway Plant Unit 1 - Enclosure 6 - 10-Q Filed Period 3/31/20162016-03-31031 March 2016 Callaway Plant Unit 1 - Enclosure 6 - 10-Q Filed Period 3/31/2016 ML16348A3882016-03-31031 March 2016 Enclosure 14 - Schedule 14C Information for Union Electric Company - March 2016 ULNRC-06349, Callaway, Unit 1 - Enclosure 6 to ULNRC-06349 - Non-Unanimous Stipulation and Agreement2016-03-30030 March 2016 Callaway, Unit 1 - Enclosure 6 to ULNRC-06349 - Non-Unanimous Stipulation and Agreement ML17097A5682016-03-30030 March 2016 Enclosure 6 to ULNRC-06349 - Non-Unanimous Stipulation and Agreement ML16348A3792015-12-31031 December 2015 Enclosure 5 - 10-K Filed Period 12/31/2015 ULNRC-06341, Callaway Plant Unit 1 - Enclosure 5 - 10-K Filed Period 12/31/20152015-12-31031 December 2015 Callaway Plant Unit 1 - Enclosure 5 - 10-K Filed Period 12/31/2015 ML16348A3852015-12-11011 December 2015 Enclosure 11 - Ameren Corporation By-Laws Effective 12/11/2015 ULNRC-06341, Callaway Plant Unit 1 - Enclosure 11 - Ameren Corporation By-Laws Effective 12/11/20152015-12-11011 December 2015 Callaway Plant Unit 1 - Enclosure 11 - Ameren Corporation By-Laws Effective 12/11/2015 ML16348A3912014-12-12012 December 2014 Enclosure 17 - By-Laws of Union Electric Company as Amended to 12/12/2014 ULNRC-06121, Enclosure 1, Amendment 36, LRA Changes2014-06-0505 June 2014 Enclosure 1, Amendment 36, LRA Changes 2023-07-25
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Enclosure 14 to ULNRC-06696 Page 1 of 3 Enclosure 14 to ULNRC-06696 Summary of Differences Between ARCON96 and ARCON96-NAI and Between PAVAN and PAVAN-NAI Codes (3 pages) 4 to ULNRC-06696 Page 2 of 3 Summary of Differences Between ARCON96 and ARCON96-NAI and Between PAVAN and PAVAN-NAI Codes The differences between the ARCON96 and ARCON96-NAI atmospheric dispersion codes may be summarized as follows:
- As described in NUREG/CR-6331 (PNNL-10521) Rev. 1 "Atmospheric Relative Concentrations in Building Wakes," the ARCON96 code was designed to run "from a Visual Basic shell under the DOS operating system." The Visual Basic runtime library that was used was needed for operation of ARCON96 was compatible with Windows 95, Windows 98, and Windows XP.
However, it is not compatible with Windows 7 or subsequent versions of the Windows operating system. The ARCON96-NAI code was recompiled by Numerical Applications, Incorporated (NAI, now Zachry Nuclear) to remove dependence on the unsupported Visual Basic runtime.
- A minor output processing error (in which part of the input echo could be overwritten) in ARCON96 was corrected in ARCON96-NAI.
The differences between the PAVAN and PAVAN-NAI atmospheric dispersion codes may be summarized as follows:
- As described in NUREG/CR-2858 (PNL-4413) "PAVAN: An Atmospheric-Dispersion Program for Evaluating Design-Basis Accidental Releases of Radioactive Materials from Nuclear Power Stations," the PAVAN code was "compatible with a CDC 7600 computer system under the NOS 1.0 operating system." The PAVAN-NAI code was recompiled by NAI to allow operation under the Windows 7 operating system.
- Additional functionality was added to the PAVAN-NAI code to optionally allow the meteorological data input to be provided as hourly data in the ARCON96 input format in lieu of the joint frequency distribution (JFD) tables that PAVAN had originally been designed to use.
This option was not used for the calculations of relative concentrations at the Exclusion Area Boundary (EAB) and Low Population Zone (LPZ) boundary that were performed in support of the subject license amendment request for implementation of alternative source terms in accordance with 10 CFR 50.67.
- PAVAN-NAI was also modified to process more than two receptor locations within a single run.
Likewise, a bug related to using variable boundary distances for each wind direction was corrected.
The process used for verification and validation of the PAVAN-NAI and ARCON96-NAI codes may be summarized as follows:
- The original Oak Ridge National Laboratory Radiation Safety Information Computational Center (RSICC)-delivered versions of PAVAN and ARCON96 were installed according to the included directions. The codes were then dedicated under the Zachry Nuclear QA Program by running the RSICC supplied verification cases.
4 to ULNRC-06696 Page 3 of 3
- PAVAN-NAI and ARCON96-NAI were developed from the original, verified RSICC-delivered versions to incorporate updated output details, cumulative minor fixes, expanded input capability, and recompilation to allow stand-alone implementation (no Visual Basic user interface) for Windows 7.
- A test suite containing the ORNL supplied test cases, as well as a sufficient number of NAI-developed example cases to demonstrate the new or significantly modified features of the NAI installation of the code were utilized for the new code verification and validation. For ORNL supplied and NAI test cases, the acceptance criteria were that the numerical results (the actual X/Qs generated) should not vary by more than a few digits in the last reported X/Q result decimal place. This reflects the nature of modern 64 bit PC processors, and newer compilers which may result in slight computational differences.
- For new edits, and revised edit formats, the acceptance criteria were that the headings should generally match the existing style of the current outputs of the code.
- For the implementation of the new ARCON96 formatted card image input capability for PAVAN-NAI, the acceptance criteria were that the originally formatted (JFD) input process would continue to work without changes, and the new ARCON96 input process should yield equivalent results (should not vary by more than a few digits in the last reported X/Q result decimal place) to a JFD input case for the same met data time period.
- All test cases passed the defined verification criteria and were documented in an NAI software dedication package in accordance with the NAI QA program.