Lagunita, also known as Lake Lagunita, is a privately owned reservoir located in Palo Alto, California. Managed by the state regulatory agency DWR for the safety of dams, this earth dam structure serves primarily as a water supply source for irrigation, recreation, and other purposes. With a height of 16 feet and a storage capacity of 280 acre-feet, Lagunita was completed in 1900 and covers a surface area of 37 acres within a drainage area of 0.86 square miles.

Despite its small size, Lagunita has a significant impact on the local water supply and recreation opportunities in the area. The dam's high hazard potential is mitigated by regular inspections, with the last assessment conducted in January 2021, revealing a satisfactory condition. Emergency action plans are in place, and the dam meets safety guidelines, ensuring that the surrounding community remains protected in the event of any unforeseen incidents. The reservoir's proximity to an unnamed tributary to the San Francisco Bay adds to its ecological importance and showcases the interconnectedness of water resources in the region.

Lagunita's historical significance, coupled with its ongoing role in water management and recreational activities, makes it a valuable asset in the Santa Clara County landscape. As climate change continues to impact water resources, the careful regulation and maintenance of structures like Lagunita are crucial for ensuring a sustainable and resilient water supply for both current and future generations. Enthusiasts of water resources and climate action can appreciate Lagunita's unique blend of functionality, safety, and environmental stewardship in the face of evolving challenges.