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

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 International Atomic Energy Agency

Participation in WG1 Breakout Sessions 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 IAEA Belgium 1 2 Canada 1

WG1 Participation in Plenary/Joint Sessions  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 IAEA 3

WG1 Presentations  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 IAEA 4

WG1 Presentations (ctd)  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 IAEA 5

Sites Selected for Case Studies Tessenderlo Phosphate Processing Site Zapadnoe Tailings Site Belgium Ukraine Former NORM Facility in São Paulo IAEA Brazil 6

Tessenderlo (TCH) Phosphate Processing Site, Belgium Sludge pond at the Kepkensberg site 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) Ra-226 contamination in the Winterbeek River TCH Phosphate Processing Facility IAEA 7

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 IAEA 8

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) IAEA 9

Zapadnoe Tailings Site, Ukraine Zapadnoe Tailings Site Location of Zapadnoe tailings Ukraine Pridneprovsky Uranium Legacy Site, Ukraine, where the Zapadnoe Tailings Site is located Distribution of Rn-222 flux (mBq/m 2 /s) from the surface of IAEA Zapadnoe tailings in September 2009 10

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 IAEA 11

Zapadnoe Tailings Site, Ukraine • 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) IAEA 12

Former Tin Processing Facility, Brazil Site layoput IAEA 13 Storage facility

Former Tin Processing Facility, Brazil  Data collection (15 Nov. 2017)  RESRAD Model setup (15 Dec. 2017)  NORMALYSA (TBD) IAEA 14

NORM Site, China  Addition to WG1 Case Studies still under Consideration  Decision expected by no later than May 2018 Coal mining and surrounding farmland IAEA Tailing and paddy field 15

MODARIA I WG1 Report  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 IAEA 16