The state of California is implementing water restrictions so that the Central Valley Aquifer does not dry up over time. Which of the following is the MOST likely cause for the aquifers’ decrease in water level?

Excessive pumping or extraction of water from the aquifer for agricultural, industrial, or residential uses is the most likely cause for the decrease in water level in the Central Valley Aquifer. This constant extraction of water without proper replenishment is leading to the aquifer drying up over time.