Departmental Representative to the Defense Nuclear Facilities Safety Board

Savannah River Site

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This page last updated Wednesday, November 20, 2024

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• Savannah River Site Contact for Board Issues
• EHSS-1.1 Site Contact
• SRS Website
• Related Recommendations:  2019-2, 2012-1, 2011-1, 2001-1, 96-1, 92-3, 92-1, 91-5, 91-2, 90-1

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• November 15, 2024, Board letter concerning the DOE development of Oder 421.1, Nuclear Safety Basis and establishing a 60-day reporting requirement, and before the new order is issued, for a report and briefing regarding DOE's path forward for issuing DOE Order 421.1.
• November 13, 2024, Board letter transmitting its report, "Reasons to Expand the Coverage of the Criticality Accident Alarm System (CAAS) at the Savannah River Plutonium Processing Facility (SRPPF)", as SRPPF project engages the DOE Criticality Safety Support Group to assess CAAS coverage.
• October 7, 2024, Department letter transmitting the Implementation Plan for Recommendation 2023-1, Onsite Transportation Safety
• August 22, 2024, Department letter stating that DOE is taking a 45-Day extension to complete the Implementation Plan for Recommendation 2023-1, Onsite Transportation Safety.
• August 13, 2024, Department letter providing the 2024 annual report regarding safety at Savannah River Site Building 235-F.
• July 17, 2024, Board letter providing its report entitled, Plutonium Storage Container Fire Testing, which outlines technical issues with the development and conduct of the tests. The Board encourages DOE to consider the limitations indicated by these issues when its contractors use the test results in safety analyses or develop future test protocols in this area.
• June 21, 2024, Department letter documenting completion of Milestone 5.4.3 of the DOE Implementation Plan for Recommendation 2020-1, Nuclear Safety Requirements.
• June 14, 2024, Board letter providing its assessment of the SRS Facility Representative program and establishing a 6-month reporting requirement for a report and briefing regarding progress toward resolving the identified shortcomings with DOE-SR's Facility Representative program.
• June 4, 2024, Board letter recognizing that DOE has named Mr. Jason Clough of the Office of Nuclear Energy, Idaho Operations Office (NE-ID), as the 2023 Facility Representative of the Year, and Mr. Nino Travljanin of Savannah River Operations Office (DOE-SR) as the 2023 Safety System Oversight Engineer of the Year.
• June 3, 2024, Board letter providing its review of maintenance practices for aboveground and underground electrical cable systems in the DOE defense nuclear complex for DOE's information and use.
• April 26, 2024, Report to Congress: Fiscal Year 2023 Department of Energy Activities Relating to the Defense Nuclear Facilities Safety Board
• April 24, 2024, Department letter transmitting Milestone 5.1.4, "Implement Best Practices and Process Enhancements Based on Results of Benchmarking Review," of the Department's Implementation Plan for Recommendation 2020-1, Nuclear Safety Requirements.
• March 26, 2024, Department letter in response to the Board's October 4, 2023, letter regarding ongoing safety improvements at the Savannah River Tritium Enterprise (SRTE).
• March 18, 2024, DNFSB 34th Annual Report to Congress for calendar year 2023
• January 30, 2024, Department letter transmitting the FY2023 Annual Nuclear Criticality Safety Metrics Report
• January 29, 2024, Department letter transmitting Deliverable 5.1.3 of the Implementation Plan for Recommendation 2020-1, Nuclear Safety Requirements
• January 17, 2024, Department letter responding to the Board letters dated August 3, 2023, and November 28, 2023, regarding concerns with facility worker safety at the Savannah River Plutonium Processing Facility (SRPPF) project.

• November 28, 2023, Board letter regarding concerns with facility worker safety at the Savannah River Plutonium Processing Facility (SRPPF) project and establishing a reporting requirement for DOE to provide a report and briefing by January 19, 2024, on DOE's response to the Board's letter dated August 3, 2023.
• October 11, 2023, Board letter providing its preliminary review of DOE's Benchmark Review Final Report for Aging Infrastructure Management.
• October 4, 2023, Board letter regarding safety at the Savannah River Tritium Enterprise (SRTE) and establishing a 6-month reporting requirement for a report and briefing on DOE's progress on safety improvements at SRTE. The Board also establishes an annual reporting requirement for a report and briefing on the progress of the facility and system upgrades, decisions made for proposed upgrades and analytical initiatives, and the impacts of safety risk reduction efforts.
• September 26, 2023, Department letter transmitting Deliverables 5.1.2, Perform Benchmark Review, of the Implementation Plan for Recommendation 2020-1, Nuclear Safety Requirements.
• September 25, 2023, Department letter responding to the Board letter of August 3, 2023, regarding the design of the Savannah River Plutonium Processing Facility (SRPPF).
• September 8, 2023, Board letter recognizing Mr. Thomas Temple of the Savannah River Operations Office as the recipient of the DOE 2022 Annual Safety System Oversight (SSO) Award.
• August 23, 2023, Department letter providing the 2023 annual report regarding safety at Savannah River Site Building 235-F.
• August 23, 2023, Department letter responding to the Board letter dated April 5, 2023, regarding the Documented Safety Analysis and Technical Safety Requirements for the Savannah River National Laboratory (SRNL).
• August 3, 2023, Board letter regarding the design of the Savannah River Plutonium Processing Facility (SRPPF) and establishing a 45-day reporting requirement for a report and briefing on DOE's position on the adequacy of the safety strategy for facility worker protection, focusing on impacts to long-lead procurements, such as glovebox systems.
• July 13, 2023, Board letter regarding the DOE Safety Software Central Registry as a follow up to the Board's letter dated August 24, 2022, and DOE's status briefing to the Board on June 8, 2023.
• April 26, 2023, Department letter responding to the Board letter of August 17, 2022, and providing DOE/NNSA's evaluation of safety oversight processes at defense nuclear facilities.
• April 5, 2023, Board letter providing its review of the Savannah River National Laboratory (SRNL) safety basis and establishing a 120-day reporting requirement for a briefing and report that describe the planned actions and timeline to address the improper designation of specific administrative controls and inappropriate classification of fire protection equipment or provide DOE leadership's position as to why additional corrective actions are not required.
• March 29, 2023, Board letter in advance of the Board's travel to SRS the week of May 8, 2023, and establishing a reporting requirement for DOE to provide a briefing while on-site to discuss ongoing safety concerns with adequate protection of the public and workforce, as well as effectiveness of federal oversight in addressing those concerns.
• March 15, 2023, Department letter responding to the Board letter dated July 26, 2022, and providing the assessment of the 296-H stack collapse analyses at Savannah River Tritium Enterprise.
• January 31, 2023, Department letter providing the FY 2022 Annual Metrics Report on Nuclear Criticality Safety Programs.

• December 19, 2022, Board letter regarding recent NNSA responses to Board reporting requirements and noting concerns that the provided responses only partially address the safety concerns identified in the Board's correspondence.
• December 19, 2022, Department letter responding to the Board letter dated August 2, 2022, regarding the electrical systems supporting the Savannah River Tritium Enterprise (SRTE).
• November 10, 2022, Department letter requesting a 120-day extension to respond to the Board's letter of July 26, 2022, regarding the condition and structural adequacy of the Savannah River Tritrium Enterprise 296-H stack.
• November 2, 2022, Department letter responding to the Board letter of June 16, 2022, on the implementation of the USQ process following a PSHA update as detailed in DNFSB TECH-47, Seismic Hazard Assessments.
• October 28, 2022, Department extension letter to provide the response to the Board's letter of August 17, 2022, regarding DOE oversight effectiveness by March 2023.
• October 20, 2022, Board letter informing DOE of the delayed responses on open DNFSB reporting requirements.
• September 8, 2022, Department letter providing the annual report report regarding SRS Building 235-F safety.
• August 18, 2022, Board letter providing its assessment of the DOE Implementation Plan for Recommendation 2020-1, Nuclear Safety Requirements.
• August 17, 2022, Board letter providing the results of its review of DOE Oversight Effectiveness and establishing a 120-day reporting requirement for a report and briefing regarding DOE's plans to address the safety matters discussed in the Board staff report.
• August 11, 2022, Board letter concerning the January 2022 unplanned release from the Savannah River Site Tritium Facilities and establishing a 120-day reporting requirement for a briefing on NNSA's plans to protect workers from similar events.
• August 2, 2022, Board letter providing the results of its review of the electrical systems supporting the Savannah River Tritium Enterprise (SRTE) and establishing a 120-day reporting requirement for a report on SRTE's approach to system health monitoring for the safety significant glovebox oxygen monitors in its facilities.
• July 26, 2022, Board letter providing its safety review of the condition and structural adequacy of the 296-H stack, located within the Savannah River Tritium Enterprise at SRS, and establishing a 120-day reporting requirement for a report on NNSA's assessment of the 296-H stack collapse analyses and specific safety concerns.
• July 19, 2022, Board letter providing a summary of its review of the safety of operations and maintenance activities at SRS Salt Waste Processing Facility (SWPF) as the first year of operations neared completion.
• June 27, 2022, Department of Energy Implementation Plan (IP) for Recommendation 2020-1, Nuclear Safety Requirements
• June 22, 2022, Department letter acknowledging the Board's January 24, 2022, letter on the Conceptual Design (CD-1) for the Savannah River Plutonium Processing Facility (SRPPF) at SRS.
• June 16, 2022, Board letter establishing a 45-day reporting requirement for a written response on implementation of the unreviewed safety question (USQ) process following a probabilistic seismic hazard analysis (PSHA) update as detailed in the DNFSB Technical Report (TECH-47), Seismic Hazard Assessments.
• June 1, 2022, Supplementary Agreement for Memorandum of Understanding Between the U.S. Department of Energy and the Defense Nuclear Facilities Safety Board
• March 30, 2022, Department letter providing the FY 2021 Annual Nuclear Criticality Safety Program Metrics report.
• February 17, 2022, DOE-DNFSB Memorandum of Understanding
• January 24, 2022, Board letter providing the results of its review of the Conceptual Design (CD-1) for the Savannah River Plutonium Processing Facility (SRPPF) at SRS, for DOE's use and information
• January 6, 2022, Board letter revising the annual reporting requirement for DOE to annually provide a report and briefing for the Nuclear Criticality Safety Program.
• January 6, 2022, Board letter providing its report from the review of the Conceptual Design for the Surplus Plutonium Disposition Project at SRS, for DOE's use and information.

• December 14, 2021, Department letter responding to the Board letter and Technical Report (DNFSB-TECH-47), Seismic Hazard Assessment, dated June 10, 2021.
• December 2, 2021, Board letter establishing August 12, 2022, as the due date for the first of the annual reporting requirement deliverables pertaining to Savannah River Site Building 235-F Safety.
• November 8, 2021, Board letter requesting DOE to provide an updated date for delivering DOE's response to the Board's June 10, 2021, letter and Technical Report-47, Seismic Hazard Assessments.
• November 2, 2021, Board letter providing the results of its review of the Savannah River Site Building 235-F safety basis and establishing an annual reporting requirement for DOE to provide a report and briefing regarding Building 235-F safety.
• September 28, 2021, Department letter responding to the Board's August 11, 2021, letter and providing responses to the questions-for-the-record relating to the July 13, 2021, public meeting and hearing on safety of defense nuclear facilities at the Savannah River Site.
• September 8, 2021, Board letter transmitting its report regarding the safety basis of the SRS H-Canyon Exhaust Tunnel for DOE’s use and information.
• August 31, 2021, Department letter for a 45-day extension to provide the response to the Board’s letter dated June 10, 2021, and technical report DNFSB/TECH-47, Seismic Hazard Assessments.
• August 11, 2021, Board letter requesting DOE to provide responses for the questions-for-the-record, as well as any supplements or clarifications to the testimony, and any additional written testimony relating to the Board’s July 13, 2021, public meeting and hearing on safety of defense nuclear facilities at the Savannah River Site.
• July 29, 2021, Board letter congratulating Administrator Jill Hruby on her confirmation as the Administrator of NNSA and requesting a meeting opportunity to discuss the safety challenges and opportunities.
• July 26, 2021, Board letter establishing a 60-day reporting requirement for DOE to brief the Board to address concerns and planned implementation of the revised DOE Standard 5506, Preparation of Safety Basis Documents for Transuranic (TRU) Waste Facilities.
• June 15, 2021, Board letter providing the results of its review of the design and safety basis documents associated with the Critical Decision-1 milestone for the Tritium Finishing Facility at the Savannah River Site for DOE’s use and information.
• June 1, 2021, Board letter regarding its planned July 13, 2021, virtual public hearing and meeting regarding the status of the Savannah River Site (SRS) as well as the ongoing actions at the Savannah River Tritium Enterprise facilities and inviting DOE to confirm participants by June 11, 2021.
• March 23, 2021, Board letter providing a courtesy copy of the DNFSB Annual Report to Congress for Calendar Year 2020.
• February 25, 2021, Department letter responding to the Board letter dated December 23, 2020, regarding Savannah River Site Building 235-F ventilation systems.
• February 25, 2021, Board letter congratulating Secretary Granholm on her confirmation as the Secretary of Energy and requesting an opportunity to meet with the Secretary to discuss the memorandum of understanding between our two agencies as well as safety challenges and opportunities.

• December 23, 2020, Board letter regarding DOE’s revised Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety, and establishing a 60-day reporting requirement for a notification of DOE’s intent to address the ventilation system items at Building 235-F. The Board also requests annual updates regarding deactivation progress in Building 235-F, the results of radiological surveys and inspections to verify that contamination in the facility is not spreading, status updates on establishing a final end state determination with regulatory authorities, and the updated schedules for activities required to achieve such a final end state.
• September 29, 2020, Board letter recognizing DOE’s approval of Critical Decision-4 and authorization to operate the Salt Waste Processing Facility (SWPF) at SRS, and noting that the Board currently has no unresolved safety issues from its review activities.
• August 7, 2020, Board letter transmitting its review of the Savannah River Site’s fire protection program for DOE’s use and information.
• June 30, 2020, Board letter recognizing Mr. William Satterfield of the EM Savannah River Operations Office on being honored as the recipient of the 2019 DOE Annual Safety System Oversight (SSO) Award.
• June 24, 2020, Board letter providing its evaluation of NNSA’s proposed and ongoing actions for improving safety at the Savannah River Site Tritium Facilities.
• June 22, 2020, Department letter notifying the Board that DOE has completed all actions in the revised Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• June 3, 2020, Department letter transmitting Revision 1 of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• May 21, 2020, Board letter requesting access to documents from the National Nuclear Security Administration Savannah River Field Office.
• March 17, 2020, Board letter providing the Secretary a courtesy copy of its Annual Report to Congress for calendar year 2019.
• January 15, 2020, Department letter transmitting the FY2019 Annual Criticality Safety Metrics Report.
• January 3, 2020, Department letter responding to the Board letter of December 5, 2019, in which the Board reaffirms Recommendation 2019-2, Safety of the Savannah River Site Tritium Facilities

• December 30, 2019, Department letter providing the DOE-SR H-Canyon Exhaust (HCAEX) Tunnel evaluation which addresses the ability of the HCAEX Tunnel to perform its function as a post-seismic safety class control structure.
• December 19, 2019, Department letter transmitting the Annual Report for Fiscal Year 2019, to also include deliverables 1-14, 3-3, and 3-4 of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• December 5, 2019, Board letter reaffirming Recommendation 2019-2, Safety of the Savannah River Site Tritium Facilities.
• October 10, 2019, Board letter responding to DOE’s rejection of Recommendation 2019-2, Safety of Savannah River Site Tritium Facilities, and establishing a reporting requirement for DOE to confirm a briefing on the basis for rejecting the Recommendation.
• September 10, 2019, Department letter responding to DNFSB Recommendation 2019-2, Safety of the Savannah River Site Tritium Facilities.
• August 5, 2019, Board letter granting the 45-day extension for DOE to provide the response for Recommendation 2019-2, Safety of the Savannah River Site Tritium Facilities.
• July 31, 2019, Department letter requesting a 45-day extension to provide the response for Recommendation 2019-2, Safety of the Savannah River Site Tritium Facilities.
• June 11, 2019, Board letter forwarding Recommendation 2019-2, Safety of the Savannah River Site Tritium Facilities.
• May 21, 2019, FY2018 Annual Report to Congress on DOE's activities relating to the Defense Nuclear Facilities Safety Board.
• April 1, 2019, DNFSB Twenty-Ninth Annual Report to Congress for Calendar Year 2018.
• January 25, 2019, Department letter transmitting the Fiscal Year 2018 Annual Criticality Safety Metrics Report.

• December 21, 2018, Department letter transmitting the Annual Report for Fiscal Year 2018, to also include deliverables 1-7, 1-8, 1-9, 1-11, 1-13, 3-3, and 3-4 of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• December 7, 2018, Board letter establishing a reporting requirement for a briefing and a copy of DOE’s evaluation of whether or not the SRS H-Canyon Exhaust (HCAEX) Tunnel is necessary as a post-seismic safety class control.
• September 7, 2018, Board letter providing the results of its review of the SRS H-Canyon Facility Justification for Continued Operation (JCO) and its identification of several issues with the implementation of compensatory measure in the JCO, for DOE’s information and use.
• September 3, 2018, FY2017 Annual Report to Congress on DOE's activities relating to the Defense Nuclear Facilities Safety Board.
• August 20, 2018, Department letter responding to the May 17, 2018, Board letter regarding the path forward to ensure the continued structural integrity of the H-Canyon Exhaust Tunnel at the Savannah River Site.
• August 14, 2018, Board letter providing its evaluation of DOE’s progress on Recommendation 2012-1, Savannah River Site Building 235-F Safety, and providing its advice to DOE for the remaining Implementation Plan deliverables for DOE’s information and use.
• August 14, 2018, Board letter encouraging DOE to evaluate and disseminate a DOE Operating Experience document for information contained in DOE’s April 4, 2018, response letter to the Board concerning SRS Conduct of Operations safety management program.
• June 27, 2018, Board letter recognizing and congratulating Mr. Tom Kohler of the DOE Savannah River Operations Office on being named the 2017 DOE Facility Representative of the Year.
• June 4, 2018, Board letter describing its current concerns regarding the Savannah River Site revised tritium facilities safety basis and analyses, and noting that the Board will review DOE's approved revision to the safety documentation and provide independent analysis and advice regarding any additional items of concern.
• June 4, 2018, Board letter congratulating Ms. Anne Marie White on her confirmation as Assistant Secretary of Energy for Environmental Management and providing a brief summary of some of the Board’s current nuclear safety oversight activities at the Office of Environmental Management’s Defense Nuclear Facilities.
• May 17, 2018, Board letter establishing a 90-day reporting requirement for a written response and briefing on the path forward to ensure the continued structural integrity of the H-Canyon Exhaust Tunnel at the Savannah River Site (SRS) or any alternatives being evaluated to replace the exhaust tunnel.
• April 27, 2018, Board letter noting that the Board had decided to not issue a final recommendation concerning atmospheric dispersion modeling at the Savannah River Site, and enclosing the Board's proposed final recommendation, the notational votes, and vote comments for DOE’s information.
• April 24, 2018, Board letter regarding the fire detection and response time at the Solid Waste Management Facility (SWMF) at Savannah River Site for DOE’s information and use.
• April 4, 2018, Department letter in response to the Board letter dated January 4, 2018, regarding Conduct of Operations Safety Management Program at the Savannah River Site.
• March 23, 2018, DNFSB Twenty-Eighth Annual Report to Congress for Calendar Year 2017.
• January 24, 2018, Department letter transmitting the Fiscal Year 2017 Annual Metrics Report on the Nuclear Criticality Safety Criteria.
• January 19, 2018, DOE Briefings to DNFSB: Plutonium Pit Production Analysis of Alternatives (AoA) Results & Next Steps.
• January 4, 2018, Board letter establishing a 90-day reporting requirement for a report and briefing related to Conduct of Operations Safety Management Program at the Savannah River Site.

• December 15, 2017, Department letter transmitting the Annual Report for Fiscal Year 2017, to also include deliverables 1-13, 3-3, and 3-4 of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• September 13, 2017, Board letter regarding the designation of specific administrative controls (SACs) at the Savannah River Site (SRS) for DOE’s use as appropriate.
• May 1, 2017, FY2016 Annual Report to Congress on DOE's activities relating to the Defense Nuclear Facilities Safety Board.
• April 27, 2017, DNFSB Twenty-Seventh Annual Report to Congress for Calendar Year 2016.
• February 1, 2017, Department letter transmitting the Fiscal Year 2016 Annual Metrics report on the Nuclear Criticality Safety Criteria.

• December 21, 2016, Department letter transmitting the Annual Report for Fiscal Year 2016, to also include deliverables 1-12, 3-3, and 3-4 of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• September 16, 2016, Board letter documenting concerns with the nuclear criticality safety program at Savannah River Site (SRS) and transmitting the DNFSB Staff Issue Report for DOE’s consideration.
• September 5, 2016, FY2015 Annual Report to Congress on DOE's activities relating to the Defense Nuclear Facilities Safety Board.
• June 20, 2016, Board letter recognizing and congratulating Mr. James Guerry, DOE Savannah River Field Office, on being honored as the recipient of the 2015 DOE Annual Safety System Oversight Award.
• April 19, 2016, Department letter transmitting the Fiscal Year 2015 annual metrics table on the nuclear criticality safety criteria.
• March 30, 2016, DNFSB Twenty-Sixth Annual Report to Congress for Calendar Year 2015.
• January 28, 2016, Department letter transmitting deliverable for Action 1-3 (Restore cell infrastructure in Plutonium fuel Form cells 6 through 9) of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• January 15, 2016, Department letter responding to the Board letter of November 10, 2015, and documenting the anticipated scope and schedule for Building 235-F risk reduction activities in fiscal years 2016 and 2017, to support the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• January 7, 2016, Board letter transmitting the review of the safety basis for the Tritium Extraction Facility at the Savannah River Site for NNSA’s information and use as the facility safety basis is updated.

• December 22, 2015, Board letter transmitting the report entitled, Emergency Preparedness and Response at the Savannah River Site, for DOE/NNSA use in implementing actions in response to Recommendation 2014-1.
• December 22, 2015, Department letter transmitting the Annual Report for Fiscal Year 2015, to also include deliverables 1-10, 3-3, and 3-4 of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• December 16, 2015, Board letter transmitting the report on H-Canyon Seismic Performance and Condition for DOE’s information and use as DOE addresses concerns with the structural integrity of the H-Canyon Exhaust Tunnel at the Savannah River Site.
• December 16, 2015, Department letter responding to the Board letter of August 3, 2015, regarding the analyses, controls, and path forward related to postulated flammability hazards at the Defense Waste Processing Facility (DWPF) at SRS.
• November 10, 2015, Board letter establishing a 60-day reporting requirement for a report documenting the scope and schedule for Building 235-F decontamination activities in fiscal years 2016 and 2017, to support the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• October 20, 2015, Board letter communicating areas for improving the safety basis at the Savannah River Site L-Area storage basin.
• August 3, 2015, Board letter establishing a 90-day reporting requirement for a report that addresses the safety basis issues at the Defense Waste Processing Facility (DWPF) at SRS, specifically: DOE's analysis of interactions between non-safety and safety components in the melter off-gas system; the adequacy of compensatory measures for the retained hydrogen PISA; and the path forward for resolving the melter feed rate, retained hydrogen and antifoam flammability PISAs.
• July 29, 2015, Department letter providing an update on the progress of activities to meet deliverables 1-3 and 1-4 of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• July 21, 2015, Department letter transmitting the Office of Environmental Management's deliverable for Action 2-13 (site-specific safety culture sustainment tools) of the Implementation Plan for Recommendation 2011-1, Safety Culture at the Waste Treatment and Immobilization Plant.
• July 6, 2015, FY2014 Annual Report to Congress on DOE's activities relating to the Defense Nuclear Facilities Safety Board.
• June 22, 2015, Board Project Letter documenting the results of the Board's staff review of the Documented Safety Analysis for Critical Decision 4 for the SRS K-Area Complex Purification Area Vault Project.
• June 12, 2015, Department letter transmitting the FY2014 Annual Report on Nuclear Criticality Safety.
• May 13, 2015, Board Project Letter for Critical Decision 4 (approve start of operations or project completion) for the Waste Solidification Building at the Savannah River Site
• March 11, 2015, DNFSB Twenty-Fifth Annual Report to Congress for Calendar Year 2014.
• March 9, 2015, Board letter in response to the DOE letter of November 28, 2014, regarding the revised schedule and deliverable dates for commitments in the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• February 2, 2015, Department letter notifying the Board of the completion of Action 2c-3 (Fire Detection and Alarm System installation and acceptance test completion) of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.

• December 31, 2014, Department letter transmitting the Annual Report for Fiscal Year 2014, to also include deliverables 1-6, 3-3, and 3-4 of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• December 10, 2014, National Nuclear Security Administration memorandum approving the site performance culture sustainment plans per Action 2-13 of the Implementation Plan for Recommendation 2011-1, Safety Culture at the Waste Treatment and Immobilization Plant.
• November 28, 2014, Department letter providing a summary of schedule changes for the remaining actions and deliverables in the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• November 13, 2014, Department letter transmitting the Office of Environmental Management’s deliverable for Action 2-12 of the Implementation Plan for Recommendation 2011-1, Safety Culture at the Waste Treatment and Immobilization Plant.
• October 3, 2014, Department letter transmitting deliverables from the National Nuclear Security Administration for Action 2-10 and 2-12 of the Implementation Plan for Recommendation 2011-1, Safety Culture at the Waste Treatment and Immobilization Plant.
• September 25, 2014, Department letter informing the Board that DOE Savannah River and its contractor successfully completed the dissolution of the Sodium Reactor Experiment used nuclear fuel at the L-Area Disassembly Basin at the Savannah River Site.
• September 19, 2014, Board letter transmitting the September 2014 Periodic Report to Congress on the status of significant unresolved issues with DOE’s design and construction projects.
• September 16, 2014, Department letter responding to the Board letter of August 7, 2014, concerning the current safety challenges at the National Nuclear Security Administration's defense nuclear facilities.
• August 7, 2014, Board letter providing a summary of the current challenges NNSA faces in the area of safety at NNSA’s defense nuclear facilities.
• July 9, 2014, Department letter transmitting the FY2013 Annual Report on Nuclear Criticality Safety.
• June 6, 2014, FY2013 Annual Report to Congress on DOE's activities relating to the Defense Nuclear Facilities Safety Board.
• May 20, 2014, Board letter recognizing Mr. Robert D. Yates of the Savannah River Operations Office as the 2013 Department of Energy Facility Representative of the Year.
• May 16, 2014, Board letter concerning the shortcomings in the safe performance of work across the Savannah River Site and establishing a 60-day reporting requirement for a briefing to (1) identify the actions taken by DOE and its contractors to improve performance, and (2) identify how DOE and the contractors' assurance programs will evaluate the effectiveness of these actions.
• March 6, 2014, DNFSB Twenty-Fourth Annual Report to Congress for Calendar Year 2013.

• September 6, 2013, FY2012 Annual Report to Congress on DOE's activities relating to the Defense Nuclear Facilities Safety Board.
• September 3, 2013, Board letter acknowledging and congratulating Mr. John Barnes of the Savannah River Operations Office on being awarded the 2012 DOE Facility Representative of the Year.
• August 29, 2013, Department letter transmitting deliverable 3-4 of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety. This letter also transmits revised dates for some deliverables under the Implementation Plan.
• May 30, 2013, Department letter transmitting deliverable consistent with commitment 1.1 (Complete project deactivation planning for Plutonium Fuel Form Cells 1-9) of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• April 16, 2013, Board letter stating that the Board reserves acceptance of DOE's Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety, until receipt and review of the Building 235-F project Deactivation Plan.
• April 3, 2013, Department letter transmitting deliverable 3-3 (Updated Building 235-F Drill Plan) of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• April 1, 2013, Department letter transmitting deliverable 2c-2 (Building 235-F fire detection and alarm systems (FDAS) enhancement study) of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• March 27, 2013, Board letter transmitting its Twenty-Third Annual Report to Congress for Calendar Year 2012.
• March 25, 2013, Department letter transmitting the DOE Annual Report on Nuclear Criticality Safety for Fiscal Year 2012.
• March 22, 2013, Department letter transmitting deliverable 2B-1 (Documented review of the Building 235-F electrical components, plan for de-energization, and process for control of the resultant configuration) of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• March 3, 2013, Department letter transmitting deliverable 2A-2 (Evaluate fixed combustibles and define the fixed combustible removal, encapsulation, or isolation scope) of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• February 28, 2013, Department letter transmitting deliverable 3-2 (Documented review of the existing protective action plans and procedures to ensure that all F-Area tenants are protected from the hazards associated with a radiological release from Building 235-F) of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• February 13, 2013, Department letter transmitting deliverable 2a-1 (Transient Combustible Control Program Description for Building 235-F) of the Department of Energy's Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• February 11, 2013, Department letter transmitting the report "Independent Oversight Assessment of Nuclear Safety Culture at the Salt Waste Processing Facility Project", in completing Action 2-6 in the Department of Energy's Implementation Plan for Recommendation 2011-1, Safety Culture at the Waste Treatment and Immobilization Plant.
• January 31, 2013, Department letter transmitting deliverable 3-1 (Emergency Preparedness drill schedule for Calendar Year 2013) of the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• January 3, 2013, Board letter forwarding Technical Report DNFSB/TECH-38, Storage Conditions of Reactive Metal Fuel in L-Basin at the Savannah River Site.

• December 5, 2012, Deparment letter transmitting the Implementation Plan for Board Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• October 19, 2012, Department letter requesting a 45-day extension to submit the Implementation Plan for Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• August 10, 2012, Department letter responding to the Board letter of March 27, 2012, regarding the A- and K- Area Fire Protection Water Supply at the Savannah River Site (SRS).
• June 25, 2012, Board letter enclosing a copy of the Board’s Report to Congress on the Status of Significant Unresolved Issues with the Department of Energy's Design and Construction Projects.
• June 8, 2012, FY2011 Annual Report to Congress on DOE's activities relating to the Defense Nuclear Facilities Safety Board.
• May 30, 2012, Department letter responding to the Board letter of March 27, 2012, regarding the A- and K-Area Fire Protection Water Supplies at the Savannah River Site.
• May 9, 2012, Board letter forwarding Recommendation 2012-1, Savannah River Site Building 235-F Safety.
• April 13, 2012, Board letter enclosing the Staff Issue Report regarding the activity-level work planning processes and procedures used by Savannah River Nuclear Solutions at the Savannah River Site.
• March 27, 2012, Board letter establishing a 60-day reporting requirement regarding the safety significant classification of fire protection water supplies at the Savannah River Site A- and K-Areas.
• February 28, 2012, Department letter transmitting the Annual Report on Nuclear Criticality Safety for Fiscal Year 2011.
• February 17, 2012, DNFSB Twenty-Second Annual Report to Congress for Calendar Year 2011.

• December 7, 2011, Board letter closing Recommendation 2001-1, High-Level Waste Management at the Savannah River Site, noting that DOE has made satisfactory progress toward meeting the intent of the Recommendation and that open commitments can be adequately tracked using the Board's normal oversight processes.
• November 14, 2011, Department letter responding to the Board letter of August 19, 2011, regarding safety basis development issues at the Savannah River Site Tritium Facilities.
• November 8, 2011, Department letter reporting completion of commitment 3.13.2, and providing the annual Implementation Plan update for Recommendation 2001-1, High Level Waste Management at the Savannah River Site
• August 29, 2011, FY2010 Annual Report to Congress on DOE's activities relating to the Defense Nuclear Facilities Safety Board.
• August 19, 2011, Board letter establishing a 90-day reporting requirement for the revised safety basis at the Savannah River Site tritium facilities.
• June 15, 2011, Board letter forwarding a copy of the Report to Congress on the Status of Significant Unresolved Issues with the Department of Energy's Design and Construction Projects (dated June 15, 2011).
• May 6, 2011, Department letter as follow-up to the November 23, 2010, letter regarding the inclusion of facility defense-in-depth controls within documented safety analyses at the Savannah River Site.
• May 2, 2011, Department letter updating activities with regard to Quality Assurance activities including Suspect Counterfeit Items and flow-down of requirements to contractors and sub-contractors.
• April 22, 2011, Department letter responding to the February 28, 2011, Board letter regarding the lack of viable disposition paths for fissile materials and other excess nuclear materials in light of the recent suspension of dissolver operations at the H-Canyon facility at SRS.
• March 15, 2011, Department letter transmitting the DOE Annual Report on Nuclear Criticality Safety for calendar year 2010.
• February 28, 2011, Board letter expressing concern about the lack of viable disposition paths for fissile materials and other excess nuclear materials in light of the recent suspension of dissolver operations at the H-Canyon facility at SRS.
• February 8, 2011, DNFSB Twenty-First Annual Report to Congress for Calendar Year 2010.
• January 28, 2011, Board letter accepting Revision 6 of the IP for Recommendation 2001-1, High-Level Waste Management at the Savannah River Site.

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