[2][3] During winters with normal rainfall, the lake used to be filled by diversion from San Francisquito Creek to a three-meter depth along with artificial water level maintenance, allowing recreational use by students.

[7] As the lake is no longer permanently filled, it serves as a drainage basin and contains vernal pools throughout the winter and spring months.

[citation needed] The lake provides a site for recreation, and functions as a holding basin for flood control.

[2] Adjacent to the lake is a 0.9-mile (1.4 km) perimeter trail, which is open for jogging or walking.

[9] Many dormitory residences, row houses, and several fraternities are located near the lake, including the Lagunita residences, Roble Hall, Enchanted Broccoli Forest (EBF), Narnia, Kappa Alpha Order, and Jerry.