Overview by 28e67f4eea39e297

VIEWS: 26 PAGES: 1

									                                      Overview of the NRC’s Consolidated NMSS Decommissioning Guidance
                                             Duane W. Schmidt, Kristina L. Banovac, Thomas L. Fredrichs, James C. Shepherd, and Theodore B. Smith: U.S. Nuclear Regulatory Commission, Decommissioning Branch


 Summary:
 Summary:
 ••Goals: consolidate, update, risk-inform, and performance-                                              Disposition of               EPA/NRC                Decommissioning          Procedures for              Dose                   Dose Modeling         Alternative             Final Status
   Goals: consolidate, update, risk-inform, and performance-                                              Solid Materials:             Memorandum of                                   Drawing on FA               Assessment             for Partial Site      Exposure                Surveys:
   base the decommissioning guidance.                                                                                                                         Lessons Learned:
   base the decommissioning guidance.                                                                     • Vol. 1, Section            Understanding:                                  Instruments:                for Buried             Releases:             Scenarios:              • Simplified
                                                                                                                                                              • Vol. 2, App. O
 ••Product is 3-volume NUREG-1757.
   Product is 3-volume NUREG-1757.                                                                          15.11                      • Vol. 1, App. H                                • Vol. 3, Ch. 6             Material:              • Vol. 2, App. K, L   • Vol. 2, App. M          FSS method
                                                                                                                                                              • Qs and As
 ••Each volume was published as draft for public comment.
   Each volume was published as draft for public comment.              What's New                         • Existing guidance          • NRC to consult       • Lessons learned          and 7                     • Vol. 2, App. J       • At final license    • For lands,              (Vol. 2,
 ••NUREG-1757 provides guidance on acceptable methods
   NUREG-1757 provides guidance on acceptable methods                                                       has been                     with EPA when          from DP and LTP        • Guidance to               • Provides a             termination, to       residential             App. B)
   and approaches, for use by licensees, NRC staff, and
   and approaches, for use by licensees, NRC staff, and                  in the                             consolidated                 specified levels       reviews                  NRC staff on                simple                 comply with LTR       farmer                • Guidance
   others.                                                                                                                               of radioactivity                                placing money               scenario,              dose criteria,        scenario is             also
   others.                                                             Guidance?                          • NRC staff
                                                                                                            decisions are                are exceeded
                                                                                                                                                              • Lessons learned
                                                                                                                                                                from inspections         in trust                    involving              licensee must         default                 provided for
                                                                                                            case-by-case               • Does not               and confirmatory       • Guidance to                 excavation of          account for dose    • More realistic          double
                                                                                                                                         change LTR             surveys                  NRC staff on                buried material        from previously       scenarios may           sampling
                                                                                                                                         compliance                                      approving                   (to build a            released areas        be developed            (Vol. 2,
       NUREG-1757, Consolidated NMSS                                                                                                     criteria                                        disbursements               basement) and                                on site-specific        App. C)
         Decommissioning Guidance                                                                                                                                                                                    spreading                                    basis
                                                                                                                                                                                                                     material
• Final Volumes published September 2003
                                                                                                                                                                                                                     around new
• http://www.nrc.gov/reading-rm/doc-collections/nuregs/staff/sr1757
                                                                                                                                                                                                                     house

 Volume 1, Decommissioning Process
  Volume 1, Decommissioning Process
 for Materials Licensees
  for Materials Licensees
 ••Applies to fuel cycle, fuel storage, and materials licensees.
   Applies to fuel cycle, fuel storage, and materials licensees.                                                                                                  Decommissioning Activities:
 ••Guidance for decommissioning plans (DPs) and related                Licensed                                                                                                                                          Demonstrate Compliance with LTR:
   Guidance for decommissioning plans (DPs) and related                               License                Facility               Cease                         • Site characterization                                • Dose modeling and DCGLs                                      Terminate
   compliance documents, including aspects of site description and
    compliance documents, including aspects of site description and
   current radiological conditions, decommissioning activities,
    current radiological conditions, decommissioning activities,
                                                                        Facility     Application            Operations            Operations                      • Development of DP                                    • Final Status Surveys                                          License
                                                                                                                                                                  • NRC staff evaluations
   management, quality assurance, and changes to approved DPs.
    management, quality assurance, and changes to approved DPs.
 ••Guidance to NRC staff on processing DPs and license
                                                                       Life Cycle                                                                                 • Site remediation
                                                                                                                                                                                                                         • NRC in-process or confirmatory surveys
   Guidance to NRC staff on processing DPs and license
   amendments.
    amendments.


 Volume 2, Characterization, Survey,
 Volume 2, Characterization, Survey,
 and Determination of Radiological Criteria
 and Determination of Radiological Criteria
 ••Fuel cycle, fuel storage, materials, and reactor licensees.
    Fuel cycle, fuel storage, materials, and reactor licensees.                      Certification        Recordkeeping:        Decommissioning             Decommissioning Process              NEPA                        Flexibility in                         Insignificant Radionuclides
 ••Guidance for technical aspects of DPs (for materials licensees),
    Guidance for technical aspects of DPs (for materials licensees),                 of financial         • Vol. 3, Ch. 3       Timeliness for              for Seven                            Compliance:                 Demonstrating                          and Pathways:
   License Termination Plans (LTPs) (for reactor licensees) and
    License Termination Plans (LTPs) (for reactor licensees) and                     assurance:           • Requirements for    Onsite Burials:             Decommissioning Groups:              • Vol. 1, Sect.             Compliance:                            • Vol. 2, Sect. 3.3
   related documents, for demonstrating compliance with the
    related documents, for demonstrating compliance with the                         • Vol. 3, App. A       recordkeeping       • Vol. 3, Sect. 2.4         • Vol. 1, Ch. 8–14                     15.7                      • Vol. 2, Ch. 2                        • Revised guidance on when
   License Termination Rule (LTR), especially final status surveys
    License Termination Rule (LTR), especially final status surveys                  • Licensees            during licensed     • Onsite burial             • Intended for NRC staff use         • Summarizes                • Emphasis added to                      detailed consideration not
   (FSS), dose assessments, and ALARA demonstrations.
    (FSS), dose assessments, and ALARA demonstrations.                                 required under       operations, for       areas that are            • Describe licensing actions           latest                      flexibility:                           needed
                                                                                       Parts 30, 40,        decommissioning       unused for 24               to complete                          guidance for                   • methodology vs. details             • sum for all radionuclides
                                                                                       70, and 72 to        plans, records        months must                 decommissioning and                  EAs, based                     • characterization data for             and pathways less than
 Volume 3, Financial Assurance,
 Volume 3, Financial Assurance,                                         What Else      provide              disposition           comply with                 license termination                  on NUREG-                        FSS                                   10% of dose criterion
 Recordkeeping, and Timeliness                                                         financial                                  Timeliness Rule                                                  1748                           • null hypothesis for FSS
 Recordkeeping, and Timeliness
 ••Fuel cycle, fuel storage, and materials licensees.
                                                                           Is          assurance                                • Licensees may                                                                                   • compliance using
                                                                                                                                                                                                                                                                        • must account for dose
    Fuel cycle, fuel storage, and materials licensees.
 ••Guidance on compliance with the “Timeliness in Decommissioning
    Guidance on compliance with the “Timeliness in Decommissioning     Important?      must submit
                                                                                       certification of
                                                                                                                                  need to assess
                                                                                                                                  potential dose to
                                                                                                                                                                                                                                    DCGLs and FSS or
                                                                                                                                                                                                                                    using dose assessment
   of Materials Facilities” (Timeliness Rule).
    of Materials Facilities” (Timeliness Rule).                                                                                                              Characterization of Ground and Surface Waters:                                                     Reviews of FSSRs:
 ••Guidance on financial assurance, including decommissioning                          financial                                  determine if area                                                                               • screening or site-
    Guidance on financial assurance, including decommissioning                         assurance                                                             • Vol. 2, Appendix F                                                   specific                    • Vol. 2, Sect. 4.5.3
   funding plans and financial instruments.                                                                                       is suitable for
    funding plans and financial instruments.                                                                                                                 • Guidance has been consolidated and updated                         • sum of fractions or dose    • Expanded guidance for NRC
 ••Guidance on recordkeeping plans and requirements.                                                                              release under the
    Guidance on recordkeeping plans and requirements.                                                                             LTR                                                                                               assessment for mixtures       staff reviews of FSSRs

								
To top