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{{#Wiki_filter:Regulatory Infrastructure Public Meeting on Blending of Low-Level Radioactive Waste Patrice M. Bubar, Deputy Director Environmental and Performance Assessment Directorate Division of Waste Management and Environmental Protection January 2010
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Purpose
* Identify and describe regulations and guidance related to blending
* Provide a baseline
 
NRC Regulations in 10 CFR
* NRC regulations do not define the terms blend, mix, dilute
* 10 CFR Part 20, Appendix G
* 10 CFR Part 61
 
Waste Classification Table 10 CFR 61.55 Radionuclide                                          Concentration, Ci/m3 Col. 1 (Class        Col. 2 (Class            Col. 3 A limit)              B limit)                (Class C limit)
Total of all radionuclides with < 5                    700                  n/a                      n/a yr half-life H-3                                                  40                    n/a                      n/a Co-60                                                700                  n/a                      n/a Ni-63                                                3.5                  70                      700 Ni-63 in activated metal                              35                    700                      7000 Sr-90                                                0.04                  150                      7000 Cs-137                                                1                    44                      4600 If concentration does not exceed column 1, waste is Class A. If concentration is > col. 1 and < col. 2, waste is Class B. If concentration is > col. 2 and < col. 3, waste is Class C. If > col. 3, waste is not acceptable for near-surface disposal
 
Blending Guidance
* 1995 Concentration Averaging Branch Technical Position
* 10 CFR 61.55(a)(8) - waste concentration may be averaged
* Mixing (blending) of homogeneous waste addressed (one of 8 categories in BTP)
* Factor of 10 rule
* Operational efficiency or occupational dose reduction considerations
* Other factors
 
Other
* 1981 Volume Reduction Policy Statement
* Risk-informed, performance-based regulation
* Disposal vs storage
 
Summary
* Regulations do not prohibit or explicitly address blending of LLW
* Waste classification is related to disposal
* Blending addressed in guidance
* Other factors}}

Latest revision as of 01:59, 18 November 2024

Public Meeting on the Blending of Radioactive Low-level Waste - Regulatory Infrastructure Presentation
ML22129A111
Person / Time
Issue date: 01/31/2010
From: Bubar P
NRC/NMSS/DDUWP/LLWPB
To:
Heath M
Shared Package
ML22124A176 List:
References
NRC-2009-0520
Download: ML22129A111 (7)
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