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ANS RESPONSE TO FUKUSHIMA LESSONS LEARNED Presented to: NESCC November 29, 2012 Washington D.C. Donald J. Spellman, Chair ANS Standards Board American.

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Presentation on theme: "ANS RESPONSE TO FUKUSHIMA LESSONS LEARNED Presented to: NESCC November 29, 2012 Washington D.C. Donald J. Spellman, Chair ANS Standards Board American."— Presentation transcript:

1 ANS RESPONSE TO FUKUSHIMA LESSONS LEARNED Presented to: NESCC November 29, 2012 Washington D.C. Donald J. Spellman, Chair ANS Standards Board American Nuclear Society

2 Standards Process for Tier 3 Issues Experience from PRA standards shows that achievement of consensus can be arduous and time-consuming when dealing with technology under development.  It can be done.  It saves NRC resources. PINS process analogous to ANPR relative to some Tier 3 issues. Standards process allows TUPA (Trial Use and Pilot Application). Standards process can be performance-based to deal with incomplete Fukushima or other information. Focus efforts where policy clarity obtains. AMERICAN NUCLEAR SOCIETY

3 SECY on Tier 3 Issues Characterization of Tier 3 issues  require further staff study to support a regulatory action,  shorter-term action that needs to be completed to inform the long-term action, and  availability of critical skill sets. Eleven Issues identified with program plans and staff assessments. Some not related to NTTF recommendations. Significant research needs identified in addition to Fukushima-related information. Policy issues clearly identified. Generally represents more information than is typically available at the start of standards projects. AMERICAN NUCLEAR SOCIETY

4 Potential Standards Approaches Work with NRC staff to make maximum use of program plans for each Tier 3 issue. Work with NEI and other SDOs to constitute one or more working groups. Negotiate balloting rules to fulfill balance-of-interest and due-process considerations. Create project plans to be consistent with research studies or information gathering. Address critical skills issue by exploiting broad volunteer base. Frame consensus issue in performance-based manner to enable experts to use qualitative and quantitative information to the maximum extent possible. Ensure that important boundary conditions are captured in “shall” statements. AMERICAN NUCLEAR SOCIETY

5 NRC NTTF TIER 3 RECOMMENDATIONS ANS STANDARDS COMMITTEE RESPONSES NTTF 2.2 /NTTF 2.1Ten-year confirmation of seismic and flooding hazards Update ANS-2.2, 2,26, 2.27, 2.29, 2.8 NTTF 3 (partial)Potential enhancements to mitigate seismically-induced fires and floods Update ANS-2.2, 2.26, 2.27, 2.29, 2.8 NTTF 5.2Reliable hardened vents for containment designs On hold for industry response to NEI NTTF 6Hydrogen control and mitigation inside containment or in other buildings Resurrect proposed standards project ANS-56.1 NTTF 9.1/9.2/10.0EP enhancements for prolonged SBO and multiunit events Update ANS-3.8 series on EP NTTF 9.3/10.0Emergency Response Data System (ERDS) capability Update ANS-3.8 series on EP NTTF 11EP topics for decision making, radiation monitoring, and public education Update ANS-3.8 series on EP and ANS-2.15

6 NRC NTTF TIER 3 RECOMMENDATIONS ANS STANDARDS COMMITTEE RESPONSES-continued NTTF 12.1/NTTF 1Reactor oversight process modifications to reflect the applications recommended defense- in-depth framework ANS Risk & Performance Based Principles Policy Committee NTTF 12.2/NTTF 8Staff training on sever accidents and resident inspectors training on severe accident management guidelines No action planned SEC , Encl. 2 Basis of emergency planning zone size No action planned SECY , Encl. 2 Pre-staging of potassium iodide beyond 10 miles No action planned SECY , Encl. 2 Transfer of spent fuel to dry cast storage Update ANS-57.2, 57.3, 8.17 SECY , Encl. 2 Reactor and containment instrumentation withstanding beyond design basis conditions ANS Risk & Performance Based Principles Policy Committee

7 NRC NTTF TIER 3 RECOMMENDATIONS ANS STANDARDS COMMITTEE RESPONSES-continued Standards Board Priority Task Group – Task Group formed at ANS meeting in June 2012 to develop a priority list of ANS standards that need upgrade, revisions, or new development to coordinate with other SDOs through the NESCC. Three ANS special committees formed at ANS Standards Board meeting November 13,  Risk & Performance Based Principles Policy Committee for implementation of BDB and DID criteria into ANS standards.  NRC/DOE Interface Management Standing Committee  Policy & Procedures Standing Committee AMERICAN NUCLEAR SOCIETY

8 NRC NTTF TIER 3 RECOMMENDATIONS ANS STANDARDS COMMITTEE RESPONSES-continued Recently Completed ANS standards actions: ANS-2.17Evaluation of Subsurface Radionuclide Transport at Commercial Nuclear Power Plants ANS-2.23Nuclear Plant Response to an Earthquake ANS-53.1Nuclear Safety Design Process for Modular Helium-Cooled Reactor Plants ANS-58.14Safety and Pressure Integrity Classification Criteria for Light Water Reactors Other pertinent ANS Standards under development or revision: ANS-2.8 Determine External Flood Hazards for Nuclear Facilities ANS Properties of Radiological Emergency Response Plans and Implementing Procedures and Maintaining Emergency Response Capability for Nuclear Facilities ANS-2.31Standard for Estimating Extreme Precipitation at Nuclear Facility Sites ANS-50.1Nuclear Safety Criteria for the Design of Light Water Reactor Plants ANS-29.XDevelopment of Defense in Depth Criteria for Nuclear Power Plants (proposed) ANS-29.XDevelopment of Defense in Depth Criteria for Nuclear Facilities other than Nuclear Power Plants (proposed) ANS-57.2 Design Requirements for Light Water Reactor Used Fuel Storage Facilities at Nuclear Power Plants AMERICAN NUCLEAR SOCIETY


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