TM2 Summary WG1: Assessment and Decision Making for NORM and - - PowerPoint PPT Presentation

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TM2 Summary WG1: Assessment and Decision Making for NORM and - - PowerPoint PPT Presentation

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TM2 Summary WG1: Assessment and Decision Making for NORM and Nuclear Legacy Sites Ming Zhu, Ph.D., PE, PMP U.S. Department of Energy, Office of Environmental Management Presented to MODARIA II Second Technical Meeting 3 November 2017 IAEA

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International Atomic Energy Agency

TM2 Summary WG1: Assessment and Decision Making for NORM and Nuclear Legacy Sites

Ming Zhu, Ph.D., PE, PMP

U.S. Department of Energy, Office of Environmental Management Presented to MODARIA II Second Technical Meeting 3 November 2017

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Participation in WG1 Breakout Sessions

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30-Oct-17 31-Oct-17 1-Nov-17 2-Nov-17 Total 22 28 18 23 In Person IAEA 1 1 1 Belgium 2 2 2 2 Brazil 1 1 1 1 Bulgaria 1 1 Canada 2 1 China 3 3 1 2 Demark 1 1 Gabon 1 1 1 1 Ghana 1 1 1 Japan 1 1 Madagesc 1 1 1 1 Russia 1 1 1 1 Singapore 1 Slovenia 2 2 2 UK 1 2 1 2 Ukraine 1 1 1 1 USA 6 6 5 7 Via WebEx 2 Belgium 1 Canada 1

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WG1 Participation in Plenary/Joint Sessions

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Plenary presentation by Eduardo Figeira da Silva (Brazil) on Uranium mining and legacy waste sites in Brazil; potential addition to the case studies, 31 Oct. 2017 Joint Session with WG3 and WG5 to discuss biota modeling for Case Studies, 31 Oct. 2017 RESRAD-Offsite Training by Charley Yu (USA), 1 Nov. 2017 Demonstration by Paul and Kelly Black (USA) of use of Guided Interactive Statistical Decision Tools (GiSdT) for stakeholder-engaged structured decision-making at this Meeting, on Thursday, 3 Nov. 2017

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WG1 Presentations

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Ming Zhu (USA), Recap from MODARIA II WG1 IM1, 30 Oct. 2017 Hongtu Sun (China), NORM site in Yunan, China; potential addition to the case studies, 30 Oct. 2017 Adrian Punt (UK), Application of PC-CREAM for modelling uranium discharges to a small water course, 30 Oct. 2017 David Copplestone (UK), Integration/harmonization with ICRP Task Group 105, 30 Oct. 2017 Stephane Pepin (Belgium), Input Dataset for the Tesserderlo Test Case, 30 Oct. 2017 Daria Koliabina (Ukraine), Input Dataset for the Zapadnoe Test Case, 30 Oct. 2017

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WG1 Presentations (ctd)

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Jeff Whicker (USA), Modelling of Resuspension: Prediction and Validation of Radioactive Dust Emissions from Contaminated Areas, 31 Oct. 2017 Ming Zhu (USA), Update from P&RA CoP Technical Exchange Meeting, 1 Nov. 2017 Tamara Yankovich (IAEA), Update on MODARIA I WG1 Report, 1 Nov. 2017 Haruko Wainwright (USA), Modeling Support for Monitoring Strategies; In Situ Sensors and Climatic Controls, 2 Nov. 2017 Nasser Shubayr (USA), Study of Chemical and Radiation Risk Assessment Methods for the US EPA and the EA of the UK, 2

  • Nov. 2017
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Sites Selected for Case Studies

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Tessenderlo Phosphate Processing Site Belgium Zapadnoe Tailings Site Ukraine Former NORM Facility in São Paulo Brazil

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Tessenderlo (TCH) Phosphate Processing Site, Belgium

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Site locations: The facilities (orange); sludge basin (dark blue); waste water buffer basin (light blue); landfill (green); out of operation (dashed); discharge points to the rivers (yellow)

Sludge pond at the Kepkensberg site Ra-226 contamination in the Winterbeek River

TCH Phosphate Processing Facility

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Tessenderlo Site Case Study

 Problem definition, Scenario description, and Input dataset (25 Oct. 2017)

  • Scenario 1. Residual contamination in the flood zone of the Winterbeek River
  • Scenario 2. Impact of the Kepkensberg disposal facility: a. “Normal” Evolution;
  • b. Intrusion

 Review geochemical conditions for parameter selection (15 Jan. 2018)  RESRAD and NORMALYSA models for all scenarios: Runs complete; investigating

differences

 Improved model-model comparison

Task 1: Model set up and initial runs for Scenario 2.a (15 Jan. 2018)

  • GOLDSIM; DCC Calculator

Task 2: Model-model comparison (TBD before IM2)

 Model-data comparison (TBD at IM2)  Radionuclide transport in the Winterbeek River

Task 1: Model set up, input parameters, initial runs (15 Jan. 2018)

  • PC CREAM adaptation and application; Comparison to NORMALYSA

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Tessenderlo Site Case Study

Biosphere exposure assessment for Winterbeek

Task 1: Model set up, input parameters, initial runs

  • BIOSPHERE (15 Feb. 2018)
  • GOLDSIM (15 Feb. 2018)

 NORMALYSA  RESRAD

  • Evaluate possibility for demonstrating the use of GiSdT for

different risk drivers (Cd, radionuclides, etc) (15 Feb. 2018)

  • Evaluate datasets for potential biota doses assessment (15 Dec.

2017)

  • Evaluation of Cd vs. radionuclides for decision making (15 Dec.

2017)

  • Monitoring strategy to help define end state (15 Feb. 2018)

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Zapadnoe Tailings Site, Ukraine

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Location of Zapadnoe tailings Distribution of Rn-222 flux (mBq/m2/s) from the surface of Zapadnoe tailings in September 2009

Zapadnoe Tailings Site Ukraine

Pridneprovsky Uranium Legacy Site, Ukraine, where the Zapadnoe Tailings Site is located

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Zapadnoe Tailings Site Case Study

Problem description, Scenario description, and Input dataset(s) (30 Oct. 2017)

Scenario 1: Worker Exposure

Scenario 2: Radionuclide Transport in GW to the Konoplyanka River

Scenario 3: Transport to the Konoplyanka and Dniper Rivers

Review geochemical conditions for parameter selection (15 Jan. 2018)11

Additional transport modelling to compare to the MODARIA & NORMALYSA calculations for same initial conditions Task 1: Model set up & initial runs for Scenario 2

NORMALYSA (Scenarios 1 & 2 Complete; Scenario 3, 15 Nov. 2017)

  • RESRAD (15 March 2018)
  • GOLDSIM (15 March 2018)
  • DCC Calculator (15 March 2018)
  • Considerations of other risks induced by remediation (worker exposure, transportation, etc) (input to chapter 2)

(15 April 2018)

  • Radionuclide transport in the Konoplyanka River

Task 1: Model set up and initial runs (15 Jan. 2018)

  • PC CREAM adpation and application; Comparison to NORMALYSA

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  • Biosphere exposure assessment for Konoplyanka River

Task 1: Model set up & initial model runs NORMALYSA (30 Dec. 2017)

  • BIOSPHERE (TBD)
  • GOLDSIM (30 April 2018)

Framework for stakeholder engagement - Leveraging

CIDER Task 1: General framework presentation (2 Nov. 2017)

  • Evaluate datasets for potential biota doses assessment (30
  • Nov. 2017)
  • Monitoring strategy to help define end state (15 Feb. 2018)

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Zapadnoe Tailings Site, Ukraine

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Former Tin Processing Facility, Brazil

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Site layoput Storage facility

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Former Tin Processing Facility, Brazil

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Data collection (15 Nov. 2017) RESRAD Model setup (15 Dec. 2017) NORMALYSA (TBD)

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NORM Site, China

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Addition to WG1 Case Studies still under Consideration Decision expected by no later than May 2018

Coal mining and surrounding farmland Tailing and paddy field

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MODARIA I WG1 Report

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Proposal under consideration to split the draft MODARIA

I WG1 Report into 2 parts

Part 1 on Decision-Aiding Theory and Framework to be

completed as MODARIA I publication

Part 2 on examples of decision-aiding analyses to be

integrated into MODARIA II WG1 Report

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MODARIA II WG1 Interim Report TOC

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1 INTRODUCTION (Ming) 1.1 Purpose and Scope of the Report 1.2 Organization of the Report 2 RISK-INFORMED DECSION ANALYSIS FOR NORM AND LEGACY WASTE SITES 2.1 Current Practices of Risk Assessment And Decision Making For Environmental Remediation 2.1.1 LANL MDA B Remediation and Land Conveyance (Amanda, Jeff , 30 Dec. 2017) 2.2 Lessons Learned from Decision Making Process Related to Remediation and Closure of Uranium Mine at Žirovski vrh, Slovenia (Branko, Borut, Paul) (30 Dec. 2017) 2.3 General (Framework, objectives, uncertainties, sensitivity, flow diagram, monitoring, etc) (Simon, Alan, Paul, Amanda, Branko) (30 Dec. 2017) 2.4 Examples of Risk-Informed Decision Analyses 2.4.1 Beaverlodge Uranium Mill and Tailings Site Closure (Stacey, 30 Dec. 2017) 2.4.2 An Approach for Risk-Informed Decision Making with Stakeholder Engagement (Paul, Simon, Branko) (30 Dec. 2017) 3 Considerations for Radiological Impact Assessments and Decision Making for Legacy and NORM Sites 3.1 Modelling for Intended Use (screening – remediation/optimization ; elements

  • n Conservatism-Realism / Simplification-Complexity)

Diederik, Ming, Nasser, Amanda, Eduardo, Charley (Late Nov. 2017 Webinar to discuss contents & date) 3.2 The Kd Approach and Alternative Methods for Radiological Impact Assessments (as an example for sensitivity/uncertainty, check MODARIA I, Hanuko, Diederik, Eduardo, Talal) considering also TF, BCF (D 28 Feb. 2018) 3.3 Definition of End State (Hanuko, Stacey) (Contact Josh for LM statistics; sustainability) (15 Dec. 2017) (Potential overlap with Beaverlodge?) 4 TEST CASE 1: TESSENDERLO PHOSPHATE PROCESSING PLANT SITE, BELGIUM 4.1 Scenario Development and Justification (Stéphane) (Draft complete 31 Oct 2017) 4.1.1 Residual Contamination in Flood Zone of Stream 4.1.2 Waste Disposal at Kepkensberg 4.1.3 Radionuclide Transport in the Winterbeek River 4.2 Model Development and Analysis 4.2.1 PC CREAM 4.2.2 BIOSPHERE 4.2.3 NORMALYSA 4.2.4 RESRAD 4.2.5 GOLDSIM 4.3 Interpretation of Assessment Results 4.4 Decision Making 4.5 Demonstration of GiSDT? 5 TEST CASE 2: ZAPADNOE TAILINGS SITE, UKRAINE 5.1 Scenario Development and Justification (Daria) (Draft complete 31 Oct 2017) 5.1.1 Worker Exposure 5.1.2 Radionuclide Transport in GW to the Konoplyanka River 5.1.3 Transport to the Konoplyanka and Dniper Rivers 5.2 Model Development and Analysis 5.2.1 PC CREAM 5.2.2 NORMALYSA 5.2.3 RESRAD 5.2.4 GOLDSIM 5.3 Interpretation of Assessment Results 5.4 Decision Making 6 Summary APPENDIX A: SITE DESCRITION, SCENARIO DESCRIPTION, AND INPUT DATASET OF THE TESSENDERLO PHOSPHATE PROCESSING PLANT SITE CASE STUDY APPENDIX B: SITE DESCRITION, SCENARIO DESCRIPTION, AND INPUT DATASET OF THE ZAPADNOE TAILINGS SITE CASE STUDY

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PLANNED NEAR-TERM ACTIONS

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Distribution of Rn-222 flux (mBq/m2/s) from the surface of Zapadnoe tailings in September 2009

NRPA Lillehammer presentation on end-state (Adrian Punt):

  • Nov. 2017

WG1 WebEx Meeting to discuss status & update plans: Late

  • Nov. 2017

CIDER Technical Meeting: Feb. 2018 (Paul Black) Draft Sections of WG1 Interim Report for internal review:

March 2018

WM2018 Symposium in Phoenix: March 2018 (WG1

Overview by Ming Zhu & Tamara Yankovich; Panel and oral presentations on various topics by Ming Zhu, Tamara Yankovich, Paul Black, Amanda Anderson, Haruko Wainwright, and Stuart Walker)

RESRAD Training course at ANL: April 2018 (Charley Yu)

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Next Meeting

JSI, Ljubljana, Slovenia, 21-25 May 2018 (with Field Trip to )

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Thank you for your participation!