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Ingestion Pathway Exercise Data Development: Maps to Samples – An Insider’s Look

DOE/NV/25946--917. Ingestion Pathway Exercise Data Development: Maps to Samples – An Insider’s Look. RaJah Mena FRMAC Assessment Scientist Presented to NREP Conference March 31, 2010.

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Ingestion Pathway Exercise Data Development: Maps to Samples – An Insider’s Look

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  1. DOE/NV/25946--917 Ingestion Pathway Exercise Data Development: Maps to Samples – An Insider’s Look RaJah MenaFRMAC Assessment Scientist Presented to NREP Conference March 31, 2010 This work was done by National Security Technologies, LLC, under Contract No. DE-AC52-06NA25946 with the U.S. Department of Energy

  2. Overview • DOE Involvement • Standard product set • Production • NARAC Model • Maps • Revisions • Sample Data • Path Forward

  3. DOE Involvement • DOE participates in 8-10 exercises per year • Standard level of participation • Planning conference calls and meetings • Outreach (1 assessment scientist) • Presentation • Tabletop exercise • IPX (1-2 assessment scientists) • Data products • Exercise play

  4. DOE Involvement • Non-standard participation • Technical outreach (1 monitoring supervisor) • Equipment training • FRMAC monitoring and sampling procedures • Drill (1 assessment scientist) • Provide guidance during drill • Inject map products • Cover Advance Party Meeting Checklist • AMS Flyover (fixed wing crew) • King Air B200 flown during exercise • Show and tell of aircraft • CMRT I Deployment (typically a reduced team) • Field team play • Real time data • Real time products

  5. Products • Standard Product Set • Maps • Flyover • Evacuation/Shelter-in-place • Relocation • Agriculture • Sample data • 10 locations • Soil, water, milk, veggies • Non-standard products • Data elements • Time jumps • Wind shifts • Monitoring points only • Public works • Defined relocation areas

  6. Flyover

  7. Evacuation/Shelter-in-place

  8. Relocation

  9. Agricultural Map

  10. Initiating Process • Data required from the state/utility planners • Meteorological data • Canned • Real • Winds • Static • Stability class • Wind changes? • Source Term details • Release rates in 15 minute increments • Typically 2 hour span • Mix of particulates, iodines, and nobles varies greatly • NUREG-1465 and NUREG-1228 • State specific limits, if applicable

  11. Iterations • Multiple NARAC runs not uncommon • Concerns • Evacuation ~ 3–5 miles • Relocation ~ 10 miles • Ingestion ≤ 50 miles • Evacuation often the driver • Avoidable dose concept • Plume passage or no plume passage?

  12. Example Exercise • Wind from 130° • Wind speed = 5 mph • Stability class E • Release 0915–1115 • NUREG-1465 used as template • Over 60 nuclides

  13. Key Source Term Items From First Run

  14. Agricultural Areas of Concern for I-131 I-131 Food Contamination Areas of Concern (Ingestion DRLs Corresponding to FDA DILS)

  15. Agricultural Areas of Concern for Cs-137 Cs-137 Food Contamination Areas of Concern (Ingestion DRLs Corresponding to FDA DILS)

  16. Evacuation/Shelter-in-Place Radiological Release Early Phase PAGs Evacuation/Sheltering based on TEDE 12-108 hr

  17. Refinement Process • Shortfalls • Evacuation/Shelter-in-Place falls short • Extensive iodine concentration • Caution on Cs-137 • State/Utility Options • Alter scenario to include filters and scrubbers • Change met • Increase nobles • Increase particulates • Include plume passage

  18. Changes Made to Source Term

  19. Final Evacuation/Shelter-in-Place Radiological Release Dose Including Plume Passage TEDE 0-96 Hrs

  20. Final Agricultural Areas of Concern for I-131 I-131 Food Contamination Areas of Concern (Ingestion DRLs Corresponding to FDA DILS)

  21. Final Agricultural Areas of Concern for Cs-137 Cs-137 Food Contamination Areas of Concern (Ingestion DRLs Corresponding to FDA DILS)

  22. Source Term Statistics • Average number of nuclides 21 • Wind speed varies 4–8 mph • Stability classes C–E • Average duration of release 2 hours • Wind shifts and precipitation rare

  23. Most Common Nuclides and Average Activity

  24. Sample Data • Sample locations chosen by state/utility planners • Specific data needed • Which guidance is going to be used • FRMAC standard: EPA 400-93, FDA – 98 • TurboFRMAC capable of yet unpublished EPA 400, FDA – 98 • EPA 400-92, FDA – 98 • Other • Media present at each location • Pass/fail requirements • Status of agricultural products (sheltered animals, covered crops, etc.)

  25. Sample Example

  26. Path Forward • New NARAC features • .kmz files • 3D • Changes to CMweb • More automated tools for map and data production

  27. Questions??? RaJah Mena 702-295-8641 MenaRM@nv.doe.gov

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