IR 05000219/2021002

NRC Inspection Report No. 05000219/2021002 and Independent Spent Fuel Storage Installation Report 07200015/2021002

ML21208A139
Person / Time
Site:	Oyster Creek
Issue date:	07/27/2021
From:	Anthony Dimitriadis Decommissioning Branch I
To:	Cowan P Holtec Decommissioning International
References
IR 2021002
Download: ML21208A139 (11)

Text

July 27, 2021

SUBJECT:

HOLTEC DECOMMISSIONING INTERNATIONAL, LLC, OYSTER CREEK NUCLEAR GENERATING STATION - NRC INSPECTION REPORT NO.

05000219/2021002 AND INDEPENDENT SPENT FUEL STORAGE INSTALLATION REPORT 07200015/2021002

Dear Ms. Cowan:

On June 30, 2021, the U.S. Nuclear Regulatory Commission (NRC) completed an inspection under Inspection Manual Chapter 2561, Decommissioning Power Reactor Inspection Program, at the permanently shut down Oyster Creek Nuclear Generating Station (Oyster Creek). On-site inspections were performed on May 17-19, 2021 and June 23, 2021. On-site independent spent fuel storage installation inspections were performed April 20-21, 2021. Additional inspection activities (in office reviews) were conducted remotely as a consequence of the COVID-19 public health emergency (PHE) 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 inspectors, interviews with site personnel, and a review of procedures and records. The results of this inspection were discussed with Ms. Andrea Sterdis, Holtec Decommissioning International, LLC (HDI) Vice President Regulatory and Environmental Affairs, and other members of the Oyster Creek staff on July 12, 2021, and are described in the enclosed report. No findings of safety significance were identified.

In accordance with 10 Code of Federal Regulations (CFR) 2.390 of the NRC's "Rules of Practice," a copy of this letter and its enclosure, and your response (if any) will be made available electronically for public inspection in the NRC Public Document Room or from the NRC document 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 NRC's 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 NRC's 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 Elizabeth Andrews at 610-337-5117 if you have any questions regarding this matter.

Sincerely, Digitally signed by Anthony Anthony M.

M. Dimitriadis Date: 2021.07.27 Dimitriadis 13:58:51 -04'00'

Anthony Dimitriadis, Chief Decommissioning, ISFSI, and Reactor Health Physics Branch Division of Radiological Safety and Security Docket No: 05000219 and 072000015 License No: DPR-16 Enclosure: Inspection Report 05000219/2021002 and 07200015/2021002 w/Attachment cc w/encl: Distribution via ListServ

EXECUTIVE SUMMARY

Holtec Decommissioning International, LLC

Oyster Creek Nuclear Generating Station NRC Inspection Report Nos. 05000219/2021002 and 07200015/2021002 An announced decommissioning inspection was completed at Oyster Creek Nuclear Generating Station (Oyster Creek) on June 30, 2021. Additional inspection activities were conducted remotely during the inspection period as a consequence of the COVID-19 PHE. The inspection included a review of decommissioning performance and status reviews at permanently shutdown reactors; radioactive waste treatment and effluent and environmental monitoring; and inspection of remedial and final surveys. The inspection consisted of observations by the inspectors, interviews with site personnel, a review of procedures and records, and plant walk-downs. The U.S. Nuclear Regulatory Commissions (NRC's) program for overseeing the safe operation of a shut-down nuclear power reactor is described in Inspection Manual Chapter (IMC) 2561, Decommissioning Power Reactor Inspection Program."

Additionally, the inspection period included a review and observation of the independent spent fuel storage installation (ISFSI) dry cask activities. The NRCs program for overseeing the spent operation of dry storage of spent fuel at an ISFSI is described in IMC 2690, Inspection Program for Dry Storage of Spent Reactor Fuel at Independent Spent Fuel Storage Installations and for 10 Code of Federal Regulations (CFR) Part 71 Transportation Packagings.

Based on the results of this inspection, no findings of safety significance were identified.

ii

REPORT DETAILS

1.0 Background On September 25, 2018, Oyster Creek certified the permanent removal of fuel from the reactor vessel [Agencywide Document Access and Management System (ADAMS)

Accession No. ML18268A258]. This met the requirements of 10 CFR 50.82(a)(1)(i) and 50.82(a)(1)(ii). On October 1, 2018, the NRC notified Oyster Creek that the Operating Reactor Assessment Program had ceased and that implementation of the Decommissioning Power Reactor Inspection Program would begin on October 1, 2018 (ADAMS Accession No. ML18274A221). On July 1, 2019, an amended license was issued transferring the license from Exelon Generation Co., LLC to Holtec Decommissioning International, LLC (ADAMS Accession No. ML19164A157). Oyster Creek is currently in the Actively Decommissioning, Fuel in the Spent Fuel Pool phase of decommissioning as described in IMC 2561.

2.0 Active Decommissioning Performance and Status Review 2.1 Inspection Procedures 71801, 84750, 83801

a. Inspection Scope

In-office reviews of information supplied by Oyster Creek were performed during the inspection period. The inspectors performed on-site inspections on May 17-19, 2021 and June 23, 2021. The inspection consisted of observations by the inspectors, interviews with site personnel, a review of procedures and records, and plant walk-downs.

The inspectors reviewed the status of activities related to the site decommissioning to determine if activities were in accordance with licensed requirements. The inspectors observed a sample of ongoing decommissioning activities and reviewed work packages associated with the demolition of main fuel oil tank, Boiler House #1, Boiler House #2 and the augmented offgas building. The inspectors reviewed the decommissioning schedule to determine if the schedule was consistent with the post shutdown decommissioning activities report (PSDAR).

The inspectors reviewed activities and documentation associated with radioactive effluent control and site radiological environmental monitoring program to evaluate the effectiveness of site radiological programs. The inspectors reviewed radioactive gaseous and liquid effluent release permits, the 2020 Annual Radioactive Effluent Release report, and the 2020 Annual Radiological Environmental Operating Report. The inspectors toured the meteorological tower and select environmental monitoring and sample stations to determine if they were adequately maintained.

The inspectors reviewed the latest revision of the Oyster Creek Historical Site Assessment to determine if the current and historical radiological conditions at Oyster Creek were accurately represented. The inspectors conducted site walk-downs to confirm conclusions made throughout the document.

b. Observations and Findings

The inspectors noted the next main decommissioning activities include building demolition and reactor segmentation, which were in progress at the time of the exit meeting of this inspection period. The inspectors determined the activities were performed safely and in accordance with work plans. The inspectors verified the activities and schedule were consistent with the September 18, 2018, notification by HDI revising the PSDAR for Oyster Creek.

The inspectors verified that effluent releases to the environment had been properly controlled, monitored, and quantified as required by NRC regulations. The inspectors verified that calculated doses reported in the Annual Radioactive Effluent Release Report and Annual Radiological Environmental Operating Report were below regulatory dose criteria of 10 CFR 50, Appendix I, Numerical Guides for Design Objectives and Limiting Conditions for Operations to Meet the Criterion As Low as is Reasonably Achievable for Radioactive Material in Light-Water-Cooled Nuclear Power Reactor Effluents. The inspectors also determined that the selected environmental monitoring and sample stations were adequately maintained.

The inspectors verified that the latest revision of the Oyster Creek Historical Site Assessment adequately defined the current and historical radiological conditions of the site.

c. Conclusions

Based on the results of this inspection, no findings of safety significance were identified.

2.2 Inspection Procedure 60855, Operation on an ISFSI

a. Inspection Scope

The inspectors conducted direct observations and performed independent evaluations to determine if the licensee was operating the ISFSI in conformance with the commitments and requirements. The inspectors reviewed changes to the program and procedures since the last inspection, evaluated the effectiveness of the licensees plans for controlling radiological activities, reviewed selected records, and observed selected licensee activities for loading fuel. The inspectors evaluated the effectiveness of the licensees management oversight and quality assurance assessments of ISFSI activities.

b. Observations and Findings

On April 20-21, 2021, the inspectors observed and evaluated Oyster Creeks ISFSI activities associated with Casks 22 and 23 of the 33-cask campaign. The inspectors verified compliance with the Certificate of Compliance, Technical Specifications, and station procedures.

The inspectors observed multi-purpose canister (MPC) movement activities including:

(1) lifting of loaded HI-STORM out of Cask Transfer Pit (CTP) and

(2) placement of HI-STORM on ISFSI pad using air-caster system. The inspectors also observed the re-build of the Removable Valve Operating Assemblies prior to use on the next MPC.

During performance of these activities, the inspectors verified that procedure use, communication, and coordination of ISFSI activities met established regulatory requirements and Holtec approved procedures. The inspectors also observed a Safety Review Committee meeting and pre-job briefings to assess the licensees ability to identify critical steps of the evolution, potential failure scenarios, and human performance tools to prevent errors.

c. Conclusions

Based on the results of this inspection, no findings of safety significance were identified.

3.0 Exit Meeting On July 12, 2021, the inspectors presented the inspection results to Ms. Andrea Sterdis, HDI Vice President Regulatory and Environmental Affairs, and other members of the Oyster Creek staff who acknowledged the inspection results. No proprietary information was retained by the inspectors or documented in this report.

ATTACHMENT:

SUPPLEMENTAL INFORMATION

KEY POINTS OF CONTACT

Oyster Creek Personnel

P. Cowan, HDI Senior Vice President and Chief Operating Officer

A. Sterdis, HDI Vice President Regulatory and Environmental Affairs

J. Dostal, HDI Oyster Creek Site Vice President

L. Berlinski, Oversight Assessor

R. Fitts, Emergency Preparedness/Corrective Action Process Manager

J. Frank, Site DC Regulatory Assurance Lead

M. Hassler, Project Manager

S. Johnson, Site Regulatory Assurance and Operations Lead

K. Leonard, Principal Project Manager

J. McCarthy, Radiation Protection Decommissioning Specialist

E. OBrien, Senior Environmental Compliance Specialist

J. Sisak, Site DO Work Management Lead

H. Tritt, Site DC Engineering Lead

K. Whippie, Chemistry Supervisor

K. Wolf, Manager Radiation Protection and Chemistry

ITEMS OPENED, CLOSED, AND DISCUSSED

None