IR 05000245/2022001
| ML23006A035 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 01/09/2023 |
| From: | Anthony Dimitriadis Decommissioning, ISFSI, and Reactor Health Physics Branch |
| To: | Stoddard D Dominion Energy |
| References | |
| IR 2022001 | |
| Download: ML23006A035 (1) | |
Text
January 9, 2023
SUBJECT:
MILLSTONE POWER STATION, UNIT 1 - SAFSTOR INSPECTION REPORT 05000245/2022001
Dear Daniel Stoddard:
On December 21, 2022, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection under Inspection Manual Chapter 2561, Decommissioning Power Reactor Inspection Program, at the Millstone Power Station, Unit 1 (MS-1). An on-site inspection was performed December 5, 2022, and additional activities (in office reviews) were conducted remotely during the inspection period. The inspection examined activities conducted under your license as they relate to safety and compliance with the Commissions rules and regulations and the conditions of your license. The inspection consisted of plant walk-downs by the inspector, interviews with site personnel, and a review of procedures and records. The results of the inspection were discussed with Guy Blackburn, Plant Manager, and other members of the Millstone Power Station staff on December 21, 2022, and are described in the enclosed report.
No violations of safety significance were identified.
In accordance with Title 10 of the Code of Federal Regulations (10 CFR) 2.390 of the NRCs Rules of Practice, a copy of this letter, its enclosure(s), and your response (if any) will be made available electronically for public inspection in the NRC Public Document Room or from the NRC Agencywide Document and Management System (ADAMS), accessible from the NRC website at http://www.nrc.gov/reading-rm/adams.html. To the extent possible, your response should not include any personal privacy, proprietary, or safeguards information so that it can be made available to the Public without redaction.
Current NRC regulations and guidance are included on the NRCs website at www.nrc.gov; select Radioactive Waste; Decommissioning of Nuclear Facilities; then Regulations, Guidance and Communications. The current Enforcement Policy is included on the NRCs website at www.nrc.gov; select About NRC, Organizations & Functions; Office of Enforcement; Enforcement documents; then Enforcement Policy (Under Related Information). You may also obtain these documents by contacting the Government Printing Office (GPO) toll-free at 1-866-512-1800. The GPO is open from 8:00 a.m. to 5:30 p.m. EST, Monday through Friday (except Federal holidays). No reply to this letter is required. Please contact Orysia Masnyk Bailey of my staff at 864-427-1032 if you have any questions regarding this matter.
Sincerely, Digitally signed by Anthony M. Anthony M. Dimitriadis Date: 2023.01.09 Dimitriadis 16:10:10 -05'00'
Anthony Dimitriadis, Chief Decommissioning, ISFSI, and Reactor Health Physics Branch Division of Radiological Safety and Security Docket No: 05000245 License No: DPR-21 Enclosure: Inspection Report No. 05000245/2022001 w/ Attachment cc w/encl: Distribution via ListServ
EXECUTIVE SUMMARY
Dominion Energy, Inc.
Millstone Power Station, Unit 1 NRC Inspection Report No.
05000245/2022125 An announced SAFSTOR safety inspection was completed on December 21, 2022, at the permanently shut down Millstone Power Station, Unit 1 (MS-1). An on-site inspection was performed on December 5, 2022. The inspection included a review of activities related to the safe storage of radioactive material, including site operations, engineering, maintenance, plant support activities, management oversight, site radiological programs, and corrective action program (CAP) implementation. The inspection consisted of observations by the inspector, interviews with site personnel, a review of procedures and records, and plant walk-downs.
At the time of the inspection, no ongoing decommissioning activities were being conducted at MS-1. The U.S. Nuclear Regulatory Commissions (NRCs) program for overseeing the safe storage (SAFSTOR) of a shutdown nuclear power reactor is described in Inspection Manual Chapter (IMC) 2561, Decommissioning Power Reactor Inspection Program.
Based on the results of this inspection, no violations of safety significance were identified.
REPORT DETAILS
1.0 Background MS-1 went into commercial operation on December 28, 1970, and permanently ceased operation on July 17, 1998. Subsequently, the fuel was permanently removed from the reactor vessel and is currently stored in the spent fuel pool. MS-1 is in safe storage (SAFSTOR), and Dominion Energy, Inc. (Dominion) plans to actively decommission MS- 1 in parallel with the decommissioning of the operational units after they have been permanently shut down. Operations and radiation protection and chemistry personnel from Millstone Power Station Unit 2 (MS-2) provide routine support functions to MS-1.
The NRC's program for overseeing the safe storage of a shutdown nuclear power reactor is described in IMC 2561.
2.0 SAFSTOR Performance and Status Review
a. Inspection Scope
(Inspection Procedures 37801, 40801, 60801, 64704, 71801, 83750, 84750, 86750)
A routine announced safety inspection was conducted on December 5, 2022, at Unit 1. The inspection consisted of observations by the inspector, interviews with site personnel, a review of procedures and records, and plant walk-downs. The inspector reviewed the SAFSTOR program as outlined in the defueled safety analysis report and technical specifications and assessed the adequacy of management oversight of SAFSTOR responsibilities for the MS-1 facility.
Specifically, the inspector reviewed the decommissioning management and staff organization and Dominions implementation of SAFSTOR activities related to safe storage of radioactive material. The inspector also conducted a walk-down to assess the material condition of the MS-1 facility including the reactor building, fuel handling floor, and turbine building and discussed any design changes or modifications since the previous inspection.
The inspector reviewed MS-1s program for the safe wet storage of spent fuel.
The inspector performed a walk-down of the spent fuel pool and associated support systems to assess material condition, configuration control, and system operation.
Additionally, the inspector reviewed the associated water chemistry analytical data and examined the controls and indications relevant to MS-1 that are available to operators in the MS-2 control room.
The inspector reviewed activities, components, and documentation associated with the following SAFSTOR programs: occupational exposure, fire protection, radioactive effluent control, site radiological environmental monitoring program (REMP), maintenance and surveillance and decommissioning organization and staffing. The inspector reviewed radiological surveys, the annual REMP report, the annual effluent release report, and MS-1 firefighting strategies and procedures.
The inspector reviewed Dominion fleet audit reports and CAP documents associated with MS-1 to determine if issues were being appropriately identified, assessed, and reviewed, and that corrective actions had been appropriately implemented.
b. Observations and Findings
The inspector verified that the SAFSTOR program was being effectively implemented.
The inspector verified that the maintenance and surveillance program for systems and components had been conducted in accordance with the technical specification requirements and established procedures. The inspector also confirmed that no dismantlement or decommissioning activities were performed since the previous inspection. The inspector determined that MS-1 was safely storing spent fuel in wet storage.
The inspector noted that there were no temporary or permanent modifications to the site since the last SAFSTOR inspection performed in calendar year 2021. The inspector reviewed information relevant to the status of the decommissioning trust fund and its expenditures, as provided by Dominion during the inspection period, with no concerns identified.
As previously indicated, MS-2 operations staff support operations at MS-1. The inspector reviewed MS-1s firefighting strategies and noted that the fire brigade staffed from MS-2 and MS-3s operations would respond in the event of a fire at MS-1.
Fire drills are routinely performed at MS-1 and staff are familiarized with MS-1 during training. The inspector noted that MS-2 health physics support work operations at MS-1 by performing surveys, providing radiation protection coverage for any emerging work, and providing radiation protection briefings as necessary.
The annual radiological effluent and the annual REMP reports demonstrated that all calculated doses were below regulatory dose criteria of 10 CFR 50, Appendix I, Numerical Guides for Design Objectives and Limiting Conditions for Operation to Meet the Criterion As Low as is Reasonably Achievable for Radioactive Material in Light- Water-Cooled Nuclear Power Reactor Effluents. The inspector noted that MS-1 had one shipment of Class A dry active waste for offsite disposal since the last inspection. Additionally, the inspector discussed shipping requirements and processes with site staff to gain an understanding of the sites experience and expertise on shipping radwaste.
Findings or issues identified from audits, plant equipment operator rounds, and staff observations were entered into the CAP. Site staff effectively addressed identified issues, implemented corrective actions, and tracked them to closure.
Condition reports and corrective actions appeared to be prioritized and evaluated commensurate with their safety significance.
c. Conclusions
No violations of safety significance were identified.
3.0
Exit Meeting Summary
On December 21, 2022, the inspector presented the inspection results to Guy Blackburn, Plant Manager, and other members of the Millstone Power Station staff who acknowledged the inspection results. No proprietary information was retained by the inspector or documented in this report.
SUPPLEMENTAL INFORMATION
PARTIAL LIST OF PERSONS CONTACTED
Millstone Power Station Personnel
- G. Blackburn, Plant Manager
- C. Chatman, Manager Operations
- C. Alford, Chemistry Supervisor
- D. Beachy, Supervisor Licensing
- C. Dix, Radiation Material Control Supervisor
- J. Go, Superintendent, Operations Support
- J. Patel, Licensing Engineer
- D. Provencher, Unit 2 Chemistry Supervisor
- M. Wynn, Superintendent Technical Services
ITEMS OPEN, CLOSED, AND DISCUSSED
None
LIST OF DOCUMENTS REVIEWED
Audits
21-02, Fire Protection QA Program and Implementation, dated April 20, 2021
Condition Reports
1140652 1154983 1187637
1144006 1161367 1190648
1146276 1162389 1192795
1147564 1182733 1193098
Miscellaneous
22 SFP Chemistry Samples and Analysis
22 Unit 1 Radiological Surveys
21 Annual Radioactive Effluent Release Report
21 Annual Radiological Environmental Operating Report
21 Waste Shipment Records
DOM-QA-1, Nuclear Facility Quality Assurance Program Description, Rev. 33
ETE-MP-2021-1035, Millstone Power Station Fire Protection Program Manual, Rev. 0
Millstone Power Station Unit 1 Decommissioning Funding Status Report, March 2022
Millstone Power Station Unit 1 Defueled Safety Analysis Report, Rev. 17
Millstone Power Station Unit 1 Defueled Technical Requirements Manual Millstone
Power Station Unit 1 Defueled Technical Specifications
21 Physical Inventory of Unit 1 Fuel
Year -B4C Blackness Testing
Millstone Unit 1, Fire Hazards Analysis, Rev. 6
MPI-22-01026, Unit 1 SFPI Rad Monitor Detector Replacement
Procedures
CM-AA-FPA-101, Control of Combustible and Flammable Materials, Rev. 15
CM-AA-FPA-102, Fire Protection and Fire Safe Shutdown Review and Preparation Process
and Design Change Process, Rev. 11
CM-AA-FPA-100, Fire Protection/Appendix R (Fire Safe Shutdown) Program, Rev. 19
C-EN 1041, Condition Monitoring of Structures, Rev. 14
ER-AA-MRI-10, Maintenance Rule Program, Rev. 8
ER-AA-MRI-100, Implementing Maintenance Rule, Rev. 15
ETE-MP-2021-1035, Fire Protection Program Manual
MP-22-REC-BAP01, Radiological Effluent Monitoring and Offsite Dose Calculation
Manual, Rev. 31
PI-AA-200, Corrective Action, Rev. 39
SP 2669B, Unit 1 Operator Logs and Inspections, Rev.1
Radiation Work Permit
20001 -1220008
20032
20033
20066
Work Orders
203342528
203302852
53102445515
LIST OF ACRONYMS USED
CAP Corrective Action Program
Dominion Dominion Energy, Inc.
IMC Inspection Manual Chapter
MS-1 Millstone Power Station Unit 1
MS-2 Millstone Power Station Unit 2
NRC U.S. Nuclear Regulatory Commission
REMP Radiological Environmental Monitoring Program
SAFSTOR Safe Storage
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