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Revised System 2a

Fort Ord A-Aquifer MODFLOW/MT3DMS Simulations. Revised System 2a. 1. Model Setup. Model layers 2 layers within upper sand 1 layer for silt/clay Porosity Sand layers: 0.25 Silt/clay: 0.35 MT3DMS Parameters Advection Dispersion Longitudinal: 0.001

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Revised System 2a

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  1. Fort Ord A-Aquifer MODFLOW/MT3DMS Simulations Revised System 2a Prelim Results - System 2A - For Discussion Only 1

  2. Model Setup • Model layers • 2 layers within upper sand • 1 layer for silt/clay • Porosity • Sand layers: 0.25 • Silt/clay: 0.35 • MT3DMS Parameters • Advection • Dispersion • Longitudinal: 0.001 • Ratio of transverse to longitudinal: 0.2 • Ratio of Vertical to longitudinal: 0.1 • Source/Sinks • Sodium lactate applied via injection wells Prelim Results - System 2A - For Discussion Only 2

  3. System 2APrevious Model Schedule Prelim Results - System 2A - For Discussion Only 3

  4. Injection & Extraction Rates Prelim Results - System 2A - For Discussion Only 4

  5. Changes since December 2009Model Runs Injection well rates adjusted Extraction well rates adjusted Layer elevations and K values updated Injection and Extraction Wells indicated by red symbols Prelim Results - System 2A - For Discussion Only 5

  6. Updated K Zones based on new slug test data 10 3 3 0.75 to 9 2 to 9.5 6 Updated K values (ft/day) shown in yellow Prelim Results - System 2A - For Discussion Only 6

  7. System 2ARevised Schedule Prelim Results - System 2A - For Discussion Only 7

  8. 11 days Prelim Results - System 2A - For Discussion Only 8

  9. 28 days Prelim Results - System 2A - For Discussion Only 9

  10. 60 days Last day of substrate injection Prelim Results - System 2A - For Discussion Only 10

  11. 70 days10 Days of Recirculation Prelim Results - System 2A - For Discussion Only 11

  12. 88 days3 days post recirculation Prelim Results - System 2A - For Discussion Only 12

  13. 110 days25 days post recirculation Prelim Results - System 2A - For Discussion Only 13

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