IR 05000238/2019001
| ML19092A058 | |
| Person / Time | |
|---|---|
| Site: | NS Savannah |
| Issue date: | 03/28/2019 |
| From: | Racquel Powell Decommissioning Branch I |
| To: | Koehler E US Dept of Transportation, Maritime Admin |
| References | |
| IR 2019001 | |
| Download: ML19092A058 (9) | |
Text
rch 28, 2019
SUBJECT:
NRC INSPECTION REPORT NO. 05000238/2019001, U.S. DEPARTMENT OF TRANSPORTATION, N.S. SAVANNAH, BALTIMORE, MARYLAND
Dear Mr. Koehler:
On February 26, 2019, Katherine Warner of this office conducted a safety inspection at the Nuclear Ship (N.S.) Savannah berthed in Baltimore, Maryland. The safety inspection reviewed programs and activities associated with the N.S. Savannah while the vessel is conducting decommissioning activities. The enclosed inspection report documents the inspection results, which were discussed with you at the conclusion of the inspection on February 26, 2019. Based on the results of this inspection, no findings of safety significance were identified.
In accordance with 10 CFR Part 2.390 of the NRCs "Rules of Practice," a copy of this letter, its enclosure, and your response (if any) will be available electronically for public inspection in the NRC Public Document Room or from the Publicly Available Records component of the NRCs Agencywide document and management system (ADAMS). ADAMS is accessible from the NRC Web Site at https://www.nrc.gov/reading-rm/adams.html (the Public Electronic Reading Room). No response to this letter is required. If you have any questions, please contact Katherine Warner of my staff at Katherine.Warner@nrc.gov or (610) 337-5389.
Sincerely,
/RA/
Raymond J. Powell, Chief Decommissioning, ISFSI, and Reactor Health Physics Branch Division of Nuclear Materials Safety Docket No. 05000238 License No. NS-1 Enclosure:
Inspection Report No. 05000238/2019001 cc w/Enclosure: Art Paynter, QA Manager John Osborne, Licensing and Compliance Manager State of Maryland
EXECUTIVE SUMMARY
U.S. Department of Transportation
N.S. Savannah NRC Inspection Report No. 05000238/2019001 A routine announced safety inspection was conducted on February 26, 2019, by a Region I inspector at the Nuclear Ship (N.S.) Savannah, currently berthed at a marine terminal in Baltimore, Maryland. NRC oversight of the decommissioning project is managed by staff from the NRC's Reactor Decommissioning Branch, Division of Decommissioning, Uranium Recovery,
& Waste Programs (DUWP), Office of Nuclear Material Safety and Safeguards (NMSS) with inspection support from the NRC Region I office.
The N.S. Savannah is classified by the NRC as a research and test reactor. The program for overseeing the decommissioning of research and test reactors is described in Inspection Manual Chapter (IMC) 2545, Research and Test Reactor Inspection Program. The inspection included a review of the programs and activities associated with the N.S. Savannah while the vessel is conducting decommissioning activities. The inspection consisted of observations and tours by the inspectors, interviews with N.S. Savannah personnel, and a review of procedures and records. Based on the results of this inspection, no findings of safety significance were identified.
ii
REPORT DETAILS
1.0 Background The N.S. Savannah is the property of the U. S. Department of Transportation (DOT),
Maritime Administration (MARAD). The N.S. Savannah was designed, constructed, and operated as a joint research and development project of MARAD and the Atomic Energy Commission. The ship operated from 1961 until it was removed from service in 1970. In 1971, the ship was defueled and various dismantling activities were conducted through 1976 to remove much of the radioactive material from the ship and to isolate radiologically contaminated systems. These activities included removing ion exchange systems and resins and most of the water from the primary, secondary, and auxiliary systems. A Possession Only license was issued in May 1976. The N.S. Savannah is a registered National Historic Landmark. In May 2008, the ship was towed from Norfolk, Virginia to its present location in Baltimore, Maryland. The program for overseeing the decommissioning of research and test reactors is described in IMC 2545.
2.0 Research and Test Reactor Decommissioning
a. Inspection Scope
In an October 31, 2017 letter, MARAD representatives submitted a license amendment request to modify the license to remove the License Condition that prohibited dismantling and disposal of the facility without prior approval of the Commission. This was a hold-over from when the license was under an earlier regulatory framework and did not reflect the current language of Title 10 of the Code of Federal Regulations, Section 50.82. DUWP, NMSS staff approved this action via a letter and associated safety evaluation on April 23, 2018 (ML18081A134). The licensee is currently in the process of planning for decommissioning and are performing certain dismantlement activities under the 10 CFR 50.59 process.
The inspection consisted of observations and tours by the inspectors, interviews with N.S. Savannah personnel, and a review of procedures and records to evaluate the radiation protection and As Low As Reasonably Achievable (ALARA) programs. The inspectors also reviewed Radiation Work Permits (RWPs), radiation protection surveys, ALARA program documents, job hazard analysis, and work orders.
b. Observations and Findings
N.S. Savannah was allocated funds from congress for decommissioning starting fiscal year 2017. The licensee has developed a three phase plan for decommissioning.
These include two years for DECON planning and engineering, four years for industrial dismantlement activities, and one year for license termination. It should be noted that these phases will overlap as work progresses. Currently, the licensee has begun Phase 1 and are working towards eliminating all current radiologically controlled areas (RCAs)outside the reactor compartment and cold chemistry laboratory. These RCAs include the hot chemistry laboratory, the port and starboard buffer seal charging pump rooms, the port and starboard stabilizer rooms, the A deck health physics laboratory and the B-1 stateroom. Additionally, Phase 1 activities include removing insulation on the primary coolant system and reactor plant auxiliary systems and dismantling reactor plant auxiliary systems. At the time of the inspection, the asbestos removal in the containment vessel had been completed and draining and dismantlement work had begun in the auxiliary RCAs. The inspector observed some work in the starboard charging pump room and noted that radiation protection coverage was provided in accordance with the licensees procedures.
Based on the areas of the ship accessed, there have been no issues identified with the material condition of any of the ships boundaries that contain radioactive materials. All radioactive material is currently being stored on the ship so there has been no release of radioactive material as effluents or as radioactive material. The inspector confirmed that the waste generated from recent dismantlement activities is currently being stored on the ship and the area is posted appropriately.
An RWP system is used to access the controlled areas on the ship. Each RWP provided a description of the measures required for access to and egress from the controlled areas and described protective clothing, radiation dosimeter requirements for access, and post-egress personal monitoring. The inspectors accessed a controlled area, observed work in radiological controlled areas, and received an appropriate RWP briefing from the Radiation Safety Officer. The inspector discussed the monitoring by radiation control technicians of workers upon exit. All radiation survey equipment examined was within current calibration intervals. The inspectors noted that all reported occupational doses from the asbestos abatement project were minimal.
Although the N.S. Savannah is not open for general public visitation, the vessel is often available for public visitation for special open house events or in response to specific requests from organizations. Prior to boarding the vessel, visitors are provided with a briefing that covers safety and general information about the ship. During public access events or tours, routine work is suspended and access to certain areas is restricted by ropes or physical barriers per N.S. Savannah procedures. N.S. Savannah Technical Staff representatives are positioned in strategic areas to direct visitors.
c. Conclusions
Based on the results of this inspection, no findings of safety significance were identified.
3.0
Exit Meeting Summary
On February 26, 2019, the inspectors presented the inspection results to Erhard Koehler, Senior Technical Advisor, N.S. Savannah. The inspectors confirmed that proprietary information was not provided or examined during the inspection.
SUPPLEMENTAL INFORMATION
PARTIAL LIST OF PERSONS CONTACTED
Licensee and contractors
- E. Koehler, Senior Technical Advisor, MARAD
- D. Lindenmuth, Senior RP Tech, RSCS
- J. Osborne, Licensing and Compliance Manager, Savannah Technical Staff
- A. Paynter, Quality Assurance Manager, Savannah Technical Staff
- D. Wallace, Radiation Safety Officer, RSCS
PARTIAL LIST OF DOCUMENTS REVIEWED
CFR 50.59 Screening Form, 2018-028, Remove contaminated components in Starboard
Buffer Seal Charge Pump Room, and remove interference as needed, December 12,
2018
- N.S. Savannah Annual Report 2018, STS-204, Rev.0, February 27, 2019
- N.S. Savannah Radiological Survey 2019-005, D Deck Cargo Hold 4 LLRW
- N.S. Savannah Radiological Survey 2019-007, Containment Vessel All Levels
N.S. Savannah Radiation Work Permits for 2019 (RWPs19-019 and 19-020)
Post Shutdown Decommissioning Activities Report, Revision 1
QSA-2018-002, 2017 Annual Radiation Protection Program Assessment, Revision 0
STS-004-001, License and Technical Specifications Through Amendment 16
STS-004-002, Radiation Protection Plan, Revision 1
STS-005-004, Administrative Dose Limits, Revision 1
STS-008-002, Job Hazard Analysis for WO# 2018-282, November 19, 2018
STS-008-002, Job Hazard Analysis for WO# 2018-380, November 29, 2018
WO-2018-282, Remove Contaminated Piping and Components in the Port and Starboard
Charging Pump (Buffer Seal Pumps) Rooms, Excludes the Removal of the Pump, Motor,
and Gear Reducers, Revision 4
WO-2018-380, Tagging and Draining Contaminated Systems Supporting Charge System Piping
Removal, Revision 4
ITEMS OPEN, CLOSED, AND DISCUSSED
None
LIST OF ACRONYMS USED
ADAMS Agencywide Document and Management System
ALARA As Low As Reasonably Achievable
CFR Code of Federal Regulations
DOT U. S. Department of Transportation
DUWP Division of Decommissioning, Uranium Recovery, & Waste Programs
IMC Inspection Manual Chapter
MARAD U. S. Maritime Administration
NMSS Office of Nuclear Material Safety and Safeguards
NRC Nuclear Regulatory Commission
N.S. Nuclear Ship
RCA Radiologically Controlled Areas
RWP Radiation Work Permit
A-2