ML24081A088
| ML24081A088 | |
| Person / Time | |
|---|---|
| Issue date: | 03/12/2024 |
| From: | Cynthia Barr NRC/NMSS/DDUWP/RTAB |
| To: | |
| References | |
| Download: ML24081A088 (8) | |
Text
U.S. Nuclear Regulatory Commission RIC 2024 Hybrid 36thAnnual Regulatory Information Conference
ADAPTING TO A CHANGING LANDSCAPE MARCH 12-14, 2024 Bethesda North Marriott Hotel and Conference Center Rockville, Maryland
- nrcric2024 www.nrc.gov RIC 2024 Hybrid MARCH 12-14, 2024
U.S. Nuclear Regulatory Commission #nrcric2024 36thAnnual Regulatory Information Conference www.nrc.gov
Draft Interim Staff Guidance (ISG)
DUWP-ISG-02, Radiological Surveys and Dose Modeling of the Subsurface to Support License Termination Extends NUREG-1575, Multi- Agency Image Credit: E. Darois (ML22136A164)
Radiation Sur vey and Site Investigation, (MARSSIM) to the subsurface, addressing surveys of open excavations, reactor basement substructures, and materials planned for reuse, among other topics
Image Credit: DUWP-ISG -02, Figure 2.9
ADAPTING TO A CHANGING LANDSCAPE RIC 2024 Hybrid MARCH 12-14, 2024
U.S. Nuclear Regulatory Commission #nrcric2024 36thAnnual Regulatory Information Conference www.nrc.gov
DUWP-ISG-02Alternative Sampling and Survey Methods
Includes guidance on use of in situ gamma spectroscopy for radiological sur veys, including final status sur veys
Image Credit: DUWP-ISG-02, Figure 2.7.
ADAPTING TO A CHANGING LANDSCAPE RIC 2024 Hybrid MARCH 12-14, 2024
U.S. Nuclear Regulatory Commission #nrcric2024 36thAnnual Regulatory Information Conference www.nrc.gov
DUWP-ISG-02Dose Modeling for Existing Groundwater Contamination Addresses guidance gaps regarding adequacy of groundwater monitoring networks and assessment of risk from existing groundwater contamination
Image Credit: Fort Calhoun License Termination Plan, Figure 1-7
ADAPTING TO A CHANGING LANDSCAPE RIC 2024 Hybrid MARCH 12-14, 2024
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DUWP-ISG-02Dose Modeling for Unsubmerged and Submerged Sources Addresses guidance gaps for application of commonly used decommissioning dose modeling codes to develop cleanup levels for unsubmerged and submerged sources, including basement substructures
Image Credit: DUWP-ISG-02, Figure 3.5 (modified from RESRAD training slide)
ADAPTING TO A CHANGING LANDSCAPE RIC 2024 Hybrid MARCH 12-14, 2024
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DUWP-ISG-02Public Comments
Issued October 19, 2023, with a 60-day public comment period (88 FR 72112)
Comments were due December 18, 2023 12 comments were received, including the following:
- 1. Level of survey needed for reuse of offsite materials
- 2. Survey of low-risk or small excavations
- 3. Need for and nature of site-specific support for risk-Image Credit: DUWP-ISG-02, Figure 3.10 significant parameters
- 4. Adding realism to assessment of risk from existing groundwater contamination
ADAPTING TO A CHANGING LANDSCAPE RIC 2024 Hybrid MARCH 12-14, 2024
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DUWP-ISG-02Next Steps Publication of the final DUWP- ISG-02 is anticipated in late summer 2024; comment responses will accompany the final document The final DUWP- ISG-02 will be incorporated into the next revision of NUREG-1757, Volume 2 The NRC is separately updating NUREG/CR -7021 and Visual Sample Plan under contracts with ORNL and PNNL, respectively (see the draft ISG for more information on planned updates) Image Credit: DUWP-ISG-02, Figure B.1
You can find the draft ISG and other related reports on the NRC s What's New in Decommissioning website
ADAPTING TO A CHANGING LANDSCAPE RIC 2024 Hybrid MARCH 12-14, 2024
U.S. Nuclear Regulatory Commission #nrcric2024 36thAnnual Regulatory Information Conference www.nrc.gov
Contact Information
Cynthia Barr, NRC/NMSS Cynthia.Barr@nrc.gov
Randall Fedors, NRC/NMSS Randall.Fedors@nrc.gov
Special thanks to NMSS/DUWP management: Chris McKenney, Shaun Anderson, Bruce Watson, and Jane Marshall for their guidance and support
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