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The Sacramento Regional Groundwater Model

The Sacramento Regional Groundwater Model. Derrick Whitehead Roseville City - Roseville, CA Norm Jones Aquaveo - Provo, UT Michelle Smilowitz Heatwave Data - Miami , FLA. Project Setting. Roseville. Objectives. Local-scale issues Aquifer storage and recovery Migration of contaminants

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The Sacramento Regional Groundwater Model

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  1. The Sacramento Regional Groundwater Model Derrick WhiteheadRoseville City - Roseville, CA Norm JonesAquaveo - Provo, UT Michelle SmilowitzHeatwaveData - Miami, FLA

  2. Project Setting Roseville

  3. Objectives • Local-scale issues • Aquifer storage and recovery • Migration of contaminants • Regional-scale issues • Long-term demand • Water conservation strategies • Banking and exchange

  4. Tools MODFLOW

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

  6. Hydrogeologic Characterization

  7. 3D Cross Sections

  8. GeoVolumes

  9. Model Grid Layering

  10. Ancestral Streams

  11. Stresses Rivers, Streams, Canals Supply Wells

  12. Gridded Surface Subsurface Hydrologic Analysis (GSSHA) • US Army Corps of Engineers • Simulates • 2D overland flow • 1D streamflow • 1D infiltration • Evapotranspiration • Deep percolation 1 2 Ungaged Watersheds 3 4 5 6 7

  13. GSSHA Results 1 2 3 4 5 6 7

  14. Water Demand Model • GIS workflow • Shape files • Tables • Time series • Geoprocessing tools • Outputs • Summary tables • Pumping files • Recharge files • Lateral inflow files

  15. Land Use Patterns Master Land Use File Farm Data Change from Non-urban to Urban

  16. Water Unit Demand Factors Agricultural Demand Factors (DWR) • Model Output for Representative Water Years Urban Demand Factors • Normalization Factor based on Water Year Index Monthly Conversion Factors Water Year Index • 2002 ITRC Crop Evapotranspiration Rates for Eto Zone 14 • ITRC Report 02-001, funded by CALFED and Agricultural Research Initiative of California State Univ.

  17. Steady State Calibration

  18. Predictive Model • October 2006 through September 2050 • Monthly time steps • Two versions • With conservation measures • Without conservation measures The Water Conservation Act introduced by Senator Steinberg sets a goal of reducing per capita urban water use by 20% by December 31, 2020, with an intermediate goal of reducing per capita water use by at least 10% by December 31, 2015.

  19. Aquifer Storage and Recovery

  20. Current and Future ASR Wells

  21. Local-Scale Model

  22. Local-Scale Model

  23. Sample Results

  24. Thank You Derrick Whitehead dwhitehead@roseville.ca.us

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