Isabel Lake No. 2 is a private water resource located in Sunol, California, primarily used for irrigation, recreation, and water supply. This earth dam stands at 18 feet in height with a hydraulic height of 13.7 feet, containing a storage capacity of 95 acre-feet. The dam, situated on Tr Isabel Creek, serves as a crucial component of the local water infrastructure, providing essential water resources for the surrounding area.

Managed by the California Department of Water Resources (DWR) under the Safety of Dams program, Isabel Lake No. 2 is regulated, permitted, inspected, and enforced by state agencies to ensure its safety and functionality. Despite its low hazard potential, the dam's condition assessment in September 2017 deemed it satisfactory, with a last inspection conducted in November 2020. This water supply structure plays a vital role in water management and conservation efforts within Santa Clara County, reflecting a commitment to sustainable resource utilization and environmental stewardship.

In the face of climate change impacts and increasing water scarcity concerns, the maintenance and proper functioning of dams like Isabel Lake No. 2 are essential for ensuring water security and resilience in the region. As a key player in the local water supply system, this dam underscores the importance of effective dam management practices and regulatory oversight to safeguard water resources for current and future generations. Its role in supporting irrigation, recreation, and water supply highlights the interconnectedness of water infrastructure with community well-being and underscores the need for continued investment in water resource management and climate adaptation strategies.