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