Fountain Lake, located in Maricopa, Arizona, is a man-made reservoir on the Verde River, managed by the local government of Fountain Hills. Built in 1970, this Earth-type dam stands at a height of 31 feet and has a storage capacity of 500 acre-feet, with a normal storage level of 310 acre-feet. The lake covers an area of 32 acres and serves primarily for recreation.

Despite its relatively small size, Fountain Lake poses a high hazard potential due to its location and design, yet it has been assessed as satisfactory in condition as of February 2018. The spillway, with a width of 200 feet, is uncontrolled, allowing for a maximum discharge of 2500 cubic feet per second. The dam has a moderate risk rating, indicating the importance of ongoing risk management measures to ensure the safety and integrity of the structure.

Water resource and climate enthusiasts will find Fountain Lake to be a valuable asset for both recreational purposes and as a water management structure in the arid landscape of Arizona. With its regulated state jurisdiction and routine inspections, the reservoir provides a glimpse into the careful balance between water utilization and conservation in the region.