Most of Chapman's water consumption comes from the main campus located in Orange. The combined buildings have demonstrated a decrease in use consistently over the past few years. Some significant drops can be seen in the chart below, which shows the water use during certain months in 2015 compared to the same time period last year in 2014. The numbers shown in this chart only take into consideration the water meters in buildings and not irrigation water meters.
The numbers from the following buildings on the main campus are added together to form the cumulative numbers shown in the chart: