IR 05000245/2014010
| ML14328A190 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 11/24/2014 |
| From: | Marc Ferdas Division of Nuclear Materials Safety I |
| To: | Heacock D Dominion Resources |
| References | |
| IR 2014010 | |
| Download: ML14328A190 (10) | |
Text
November 24, 2014
SUBJECT:
REISSUANCE OF DOMINION NUCLEAR CONNECTICUT, INC., MILLSTONE POWER STATION UNIT 1 - NRC INSPECTION REPORT NO.
Dear Mr. Heacock:
On June 2 - 5, 2014, the U.S. Nuclear Regulatory Commission (NRC) conducted an inspection at the Millstone Power Station Unit 1 (MS-1). In-office reviews of information supplied by Dominion Nuclear Connecticut, Inc. (Dominion) occurred between June 16 and October 27, 2014. 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 observations by the inspector, interviews with personnel, and a review of procedures and records. The results of the inspection were discussed with Lori Armstrong, Director, Nuclear Safety and Licensing, and other members of the MS-1 staff on October 29, 2014, via telephone at the conclusion of the inspection and are described in the enclosed report. No findings of safety significance were identified.
This inspection report is being reissued to correct the page numbers of the report that was issued on November 13, 2014. A corrected copy is enclosed. We apologize for any inconvenience.
Current NRC regulations and guidance are included on the NRC's website at www.nrc.gov; select Nuclear Materials; Med, Ind, & Academic Uses; 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). Please contact Laurie Kauffman (610-337-5323) if you have any questions regarding this matter.
Sincerely,
/RA MRoberts f/
Marc S. Ferdas, Chief Decommissioning and Technical Support Branch Division of Nuclear Materials Safety
Enclosure: Inspection Report No. 05000245/2014010
cc:
Distribution via ListServ
EXECUTIVE SUMMARY
Dominion Nuclear Connecticut, Inc.
Millstone Power Station Unit 1 NRC Inspection Report No. 05000245/2014010
An announced inspection was conducted at MS-1 on June 2 - 5, 2014. In-office reviews of information supplied by Dominion occurred between June 16 and October 27, 2014. The inspection included a review of operations and management oversight, maintenance, spent fuel safety, corrective action program (CAP) implementation, fire protection, and plant support activities while in safe storage (SAFSTOR) status. The inspection consisted of observations by the inspector, interviews with Dominion personnel, and a review of procedures and records.
The 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." There are currently no ongoing decommissioning activities being conducted at MS-1. Based on the results of this inspection, no findings of safety significance were identified.
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REPORT DETAILS
1.0 Background
MS-1 is located in the town of Waterford, Connecticut. MS-1 was a single cycle, boiling water reactor with a thermal output of 2011 megawatts and a net electrical output of 652.1 megawatts. The plant went into commercial operation on December 28, 1970 and permanently ceased operations on July 17, 1998. Subsequently, the fuel was permanently removed from the reactor vessel and is currently stored in the spent fuel pool (SFP). MS-1 is in SAFSTOR and Dominion plans to actively decommission MS-1 in parallel with the decommissioning of the operational units after they have been permanently shut down.
The NRC's program for overseeing the safe operation of a shut-down nuclear power reactor is described in IMC 2561.
2.0 Safe Storage (SAFSTOR) Performance and Status Review
a. Inspection Scope
(Inspection Procedures (IPs) 36801, 37801, 40801, 60801, 62801, 64704, 71801, 83750, 84750, 86750)
An announced inspection was conducted on June 2 - 5, 2014. In-office reviews of information supplied by Dominion occurred between June 16 and October 27, 2014.
The inspection consisted of observations by the inspector, interviews with Dominion personnel, and a review of procedures and records.
The inspector reviewed the SAFSTOR program as outlined in the Defueled Safety Analysis Report (DSAR), Technical Specifications (TS), and Technical Requirements Manual (TRM) 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 discussed any design changes or modifications since the previous inspection and reviewed the material condition of MS-1 facilities during plant tours of the reactor building, the fuel handling floor, and the radioactive waste building.
The inspector reviewed the quarterly surveys of the standby shutdown heat exchanger room. The inspector reviewed the maintenance and surveillance tests for the SFP cooling pumps and motors, decay heat removal pumps, fans, and motors, ventilation fans and motors, and emergency diesel generator. The inspector also verified that work was being performed within the established frequencies and that the equipment was being properly maintained.
The inspector and Office of Nuclear Reactor Regulation (NRR) personnel performed in-office reviews of Dominions final Boron Areal Density Gauge for Evaluating Racks (BADGER) test reports. The reports included in-situ measurements, conducted between July 30 and August 2, 2013, of neutron absorber material, in selected SFP racks.
Dominion performs the in-situ measurement tests on a 5-year frequency.
G:\\DNMS\\WordDocs\\Current\\Insp Letter\\LDPR-21.2014010_MS1.docx The inspector reviewed activities and documentation associated with the following SAFSTOR programs: occupational exposure, fire protection, radioactive effluent control, and site radiological environmental monitoring program (REMP). The inspector reviewed radioactive gaseous and liquid effluent release permits, the groundwater monitoring program, the annual REMP report, and the annual effluent report, which included a summary of the radioactive waste management and transportation programs.
The inspector reviewed CAP condition reports associated with MS-1 to determine if issues were being properly identified, evaluated, and prioritized.
b. Observations and Findings
The inspector noted that there were no personnel changes within the Dominion organization related to the SAFSTOR activities and confirmed that the staff was adequately implementing SAFSTOR activities. The inspector verified that the maintenance and surveillance program for systems and components had been conducted in accordance with the TS and TRM requirements and established procedures. The inspector noted that no significant water intrusion was evident and the material condition of components had remained unchanged in the reactor building, the fuel handling floor, and the radioactive waste building since the previous inspection. The inspector also confirmed that no dismantlement or decommissioning activities were performed since the previous inspection.
In June 2011, Dominion contracted a vendor to conduct BADGER testing on certain spent fuel racks in the SFP. The NRC inspector noted that the final test results were not available for review during a July 2011 NRC inspection. In August 2011, Dominion generated a CAP Condition Report (CR) 436420 to report that the test results from June 2011 were inconclusive and that additional in-situ measurements of the neutron absorber material would be required to assess the condition of the spent fuel racks. On July 30 - August 2, 2013, Dominion conducted another BADGER test, and the NRC inspector and NRR personnel observed portions of the test.
During this inspection, the inspector and NRR personnel reviewed the final BADGER test reports. The NRR personnel noted that Dominion determined that some degradation of neutron absorber material had occurred, however the SFP racks were capable of performing their design function. Specifically, the Boron-10 areal density remained greater than 0.048 gm/cm2. Dominion plans to conduct the next BADGER test within the next 5 years (third quarter of 2018) to further evaluate the rate of degradation of the SFP racks.
The annual radiological effluent and the annual REMP reports demonstrated that all calculated doses were below regulatory dose criteria of 10 Code of Federal Regulations (CFR) 50, Appendix I. The inspector noted that Dominion did not have any radioactive waste to be shipped for offsite disposal since the last inspection.
The inspector determined that issues entered into the CAP were prioritized and evaluated, commensurate with their safety significance. Corrective actions were implemented to address identified issues and were being tracked to closure.
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c. Conclusions
Based on the results of this inspection, no findings of safety significance were identified.
3.0
Exit Meeting Summary
On October 29, 2014, the inspector presented the inspection results to Ms. Lori Armstrong, Director, Nuclear Safety and Licensing, and other members of Dominions staff. The inspector confirmed that any copies of proprietary information that were used during this inspection were destroyed.
PARTIAL LIST OF PERSONS CONTACTED
Licensee
L. Armstrong Director, Nuclear Safety and Licensing W. Bartron
Supervisor, Nuclear Licensing W. Craft
Nuclear Licensing - Innsbrook J. Drzewianowski Radiation Protection Technician A. Elms
Organizational Effectiveness Manager C. Gannon
Health Physicist, Radiation Protection J. Guerci
Manager, Nuclear Core Design - Innsbrook R. Hall
Innsbrook Nuclear Fuels Engineering Consultant J. Laine
Acting Director NS&L E. Palmieri
Nuclear Maintenance Supervisor MS-1 L. Salyards
Lead Licensing Engineer T. Schleicher Supervisor, Nuclear Core Design G. Sturgeon
Operations Nuclear Specialist MS-1 P. Tulba
Radioactive Material Control Supervisor S. Turowski
HP Technical Services Supervisor
ITEMS OPEN, CLOSED, AND DISCUSSED
None
LIST OF
DOCUMENTS REVIEWED
Defueled Safety Analysis Report
Millstone Power Station Unit 1 Permanently Defueled Technical Specifications (TS)
2013 Radioactive Effluent Release Report and Off-Site Dose Calculation Manual (REMODCM)
2013 Annual Radiological Environmental Operating Report
Audit 11-09: Technical Specifications, Licensing Conditions and Chemistry
Audit 13-04: Fire Protection QA Program & MPS Refueling
Audit 12-06: Radiological Protection/Process Control Program/Chemistry
ONP 540 F, Loss of Normal Power
OP 312 I, Waste Water Evaporator System
OP 312 K, Waste Water Processing System
OP 328 A, Refueling Platform
OP 328 C, Main Hoist Operations
OP 360, Programmable Logic Controller
MS-1 Radiation Surveys conducted between June 2013 and June 2014
MS-1 Radiation Exposure (ALARA) Reports for 2013, and most current through July 2014
MS-1 Surveillance Form for Operator Logs and Inspections (Unit 1 rounds)
MP-PROC-ENG-SP 1054A, Spent Fuel Rack Surveillance Program - Boron Carbide Plate
MP-PROC-ENG-SP 1054A 001, Spent Fuel Rack Surveillance Program - Boron Carbide Plate
RP-AA-220, Radiological Survey Scheduling
SP 852, Spent Fuel Pool Chemistry Control
SP-608AA, Backup Diesel Generator Loaded Run
MEMO-NCD-20130049-0-A, Evaluation of 2013 BADGER MP1 Spent Fuel Pool B4C Panel
Measurements, dated January 15, 2014
NET-300041-01, BADGER Test Campaign at Millstone Unit 1, January 9, 2014
LIST OF ACRONYMS USED
Boron Areal Density Gauge for Evaluating Racks
Corrective Action Program
Dominion
Dominion Nuclear Connecticut, Inc.
Defueled Safety Analysis Report
IMC
Inspection Manual Chapter
IP
Inspection Procedure
MS-1
Millstone Power Station Unit 1
NRC
U.S. Nuclear Regulatory Commission
Office of Nuclear Reactor Regulation
Radiological Environmental Monitoring Program
SAFSTOR
Safe Storage
Spent Fuel Pool
Technical Requirements Manual
TS
Technical Specification