ML21208A212
| ML21208A212 | |
| Person / Time | |
|---|---|
| Issue date: | 07/14/2021 |
| From: | Thomas Aird NRC/RES/DRA |
| To: | |
| Aird, Thomas - 301 415 2442 | |
| Shared Package | |
| ML21208A206 | List: |
| References | |
| Download: ML21208A212 (3) | |
Text
1 Subsurface Soil Surveys -- Public Workshop Via MS Teams, July 14-15, 2021 DAY 1 AGENDA: WEDNESDAY, JULY 14, 2021 Time Topic Speaker 10:00 - 10:05 Welcome, Webinar Logistics Ken Hamburger, Trish Holahan, NRC 10:05 - 10:20 NRC Overview Presentation Tom Aird, NRC 10:20 - 11:20 Overview of Guidance on Surveys for Subsurface Radiological Contaminants + Q&A Carl Gogolak, SC&A, Inc.
11:20 - 12:00 NEI Presentation + Q&A Bruce Montgomery, Nuclear Energy Institute (NEI) 12:00 - 13:00 1-hour break Workshop Topic: Geospatial and Statistical Methods 13:00 - 13:30 EPRI Presentation: Experiences with Geospatial and Statistical Based Surveys of Subsurface Soil Richard Reid, Electric Power Research Institute (EPRI) 13:30 - 14:00 VSP Geospatial Statistical Methods to Support Decommissioning Debbie Fagan, Pacific Northwest National Laboratory (PNNL) 14:00 - 14:10 10-minute break 14:10 - 15:50 Open Discussion on the evaluation of sites with geospatial and statistical methods:
-Applicability of MARSSIM statistical tests and other methods
-Treatment of uncertainty and data sufficiency.
-Methods to determine the sample density, spatial distributions, depths, and volume to achieve a level of confidence and limit decision errors 15:50 - 16:00 Daily Wrap-up
2 DAY 2 AGENDA: THURSDAY, JULY 15, 2021 Time Topic Speaker 10:00 Day 2 Welcome NRC staff 10:00 - 10:30 Presentation: MARSSIM subsurface background Kathryn Snead, EPA Presentation: A Graded Approach to Subsurface Characterization and Remediation and Related Tools and Methods Matt Darois, RSCS 10:30 - 11:15 Discussion Topic: Subsurface DCGLs Short Presentations:
Development of Derived Concentration Guideline Levels (DCGLs or clean-up levels) for Subsurface Residual Radioactivity Cynthia Barr, NRC/NMSS Subsurface DCGL: Effects of Thickness, Area, and Cover Charley Yu, Argonne National Laboratory
--specific discussion on this topic--
11:15 - 12:30 Discussion Topic: Subsurface Hot Spots Short Presentations:
Elevated Areas or Hot Spots in the Subsurface Cynthia Barr, NRC/NMSS Subsurface Hot Spots Carl Gogolak, SC&A
--specific discussion on this topic--
12:30 - 13:30 1-hour Break 13:30 - 15:00 Discussion Topic:
Surveys of subsurface, including surveys of excavations, backfill materials, suspect areas, and hard-to-access areas Short Presentations:
Survey Issues with Excavations from Recent Decommissionings Bruce Watson, NRC/NMSS Low Level Radioactive Objects at a Former Department of Defense Facility Matthew Wright, California Department of Public Health Surveys of Survey Units with Low-Levels of Radioactivity Claude Wiblin, SC&A
--specific discussion on this topic--
15:00 - 15:15 15-minute Break 15:15 - 16:00 Discussion Topic: Surveys of subsurface, including surveys of excavations, backfill materials, suspect areas, and hard-to-access areas
3 Specific Discussion on subsurface survey topics including but not limited to:
-Dose calculations for backfill materials
-Applicability of Scenario B for subsurface residual radioactivity
-Methods to survey large subsurface soil excavations 16:00 Workshop Wrap-up NRC Staff