Link to the website of the Decision Center for a Desert City Decision Center for a Desert City's WaterSim Model
WaterSim arrow showing page's location in website WaterSim Scenario Builder

Change the inputs for the two scenarios, then scroll down the page to see and compare the effects on water use projections.

WaterSim Inputs
Scenario 1 Scenario 2
Colorado River

Salt and Verde Rivers

Water demand based on population and agricultural use

Water shortage policy


WaterSim Outputs
Scenario 1 Scenario 2
Legend for the Maricopa County Water Sources graph

This graph depicts the amount of water available from various sources based on the simulation.
   
Legend for the Maricopa County Water Uses graph

This graph depicts the amount of water calculated to be demanded by various uses, subject to the availability of water from the sources.
   
Legend for the Change in Groundwater Supply graph

This graph depicts the calculated accumulated change in groundwater since the starting year of the model simulation due to recharging and pumping.
   
Legend for the Gallons per Capita per Day graph

This graph depicts the calculated commercial and residential water usage in gallons per person per day after taking into account water supply, water demand, and water policy.