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The Sacramento regional model

The Sacramento regional model. Model Overview and Potential Applications Norm Jones Michelle Smilowitz. Company Background. Software development Training Consulting. Arc Hydro. www.aquaveo.com. Groundwater. Project Objectives. Regional groundwater model ASR design and optimization

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The Sacramento regional model

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  1. The Sacramento regional model Model Overview and Potential Applications Norm Jones Michelle Smilowitz

  2. Company Background • Software development • Training • Consulting Arc Hydro www.aquaveo.com Groundwater

  3. Project Objectives • Regional groundwater model • ASR design and optimization • Flexible and cost-effective • Incorporate the latest data • Accurate representation of regional hydrogeology

  4. 8 10 7 5 3 6 11 9 4 1 2 1 Code Selection MODFLOW • Confined/unconfined aquifers • Interbeds • Faults and barriers • Confining units • Rivers • Drains and springs • Streams • Reservoirs • Recharge • Evapotranspiration • Wells

  5. Model Domain Bear River Sierra Nevada Feather River Sacramento River Mokelumne River

  6. Conceptual Model - Hydrogeology

  7. GeoSections

  8. Wedge Model - Outcropping

  9. Ancestral Streams

  10. Ancestral Streams

  11. Ancestral Streams

  12. Riverbank Model Layer 1 • Consists of sands, silts, and clays from floodplain and alluvial deposits • Superjacent ancestral stream channels cut across this formation creating lateral channels of gravels and unconsolidated sediments

  13. Turlock Lake Laguna Formation Model Layers 3,4 and 5 • Predominantly consists of sands, silts, and clays • Superjacent ancestral stream channels cut across this formation, creating lateral channels of gravels and unconsolidated sediments

  14. Mehrten Formation Model Layers 6,7 and 8 • Composed of two dominant units: • Black andesitic sands “salt and pepper sand” and blue and brown clays • Hard gray and black tuff-breccias “lava”

  15. Valley Springs Formation Model Layer 9 • Consists of rhyolite ash, quartz sand , and ashy clay

  16. Ione Formation Model Layer 10 • Consists of sandstone, silts, and clays

  17. Rivers, Streams, and Canals

  18. Water Demand/Recharge CalculationsAutomated GIS Workflow GSSHA simulations Recharge coeff. for each STLU for each water year Master Land Use Files Water Unit Demand Factors Water Year Total Recharge GSSHA Simulation Recharge Coeffs Calculate Change in Land Use Calculate Recharge Model Total Applied Water and Precip Calculate Water Demand Calculate Total Applied Water Recharge to MODFLOW Total Flow from Ungaged Watersheds Water Budgeting and Accounting Calculate Demand Summary Lateral Inflow to MODLFLOW Distribute Demand

  19. Steady State Calibrated Heads

  20. Roseville Pilot Test Calibration

  21. Mokelumne River

  22. Model Applications • Contaminant transport analysis • Design of remediation systems • ASR design and optimization • Probabilistic modeling and risk analysis • Water banking and exchange • Surface water/ground water interaction

  23. ASR Simulation

  24. Summary • Realistic and accurate model of regional hydrogeology • Incorporates the latest field investigations • Based on MODFLOW suite of codes • Rapid response as questions and opportunities arise • Effective communication of results • Low-cost development and maintenance

  25. Contacts Derrick Whitehead Norm Jones (916) 774-5770 dwhitehead@roseville.ca.us (801) 422-7569 njones@aquaveo.com Cathy Lee Michelle Smilowitz (916) 746-1703 clee@roseville.ca.us (305) 899-5798 msmilowitz@aquaveo.com Royd Nelson (801) 302-1400 royd@aquaveo.com

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