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

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

Tools MODFLOW

Model Domain

Hydrogeologic Characterization

3D Cross Sections

GeoVolumes

Model Grid Layering

Ancestral Streams

Stresses Rivers, Streams, CanalsSupply Wells

US Army Corps of Engineers Simulates – 2D overland flow – 1D streamflow – 1D infiltration – Evapotranspiration – Deep percolation Gridded Surface Subsurface Hydrologic Analysis (GSSHA)

GSSHA Results

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

Land Use Patterns

Water Unit Demand Factors

Steady State Calibration

October 2006 through September 2050 Monthly time steps Two versions – With conservation measures – Without conservation measures Predictive Model 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.

Aquifer Storage and Recovery

Current and Future ASR Wells

Local-Scale Model

Sample Results

Thank You Derrick Whitehead