Sunset South Basin, located in San Francisco, California, is a crucial water supply infrastructure owned by the local government. This offstream dam, completed in 1960, stands at a height of 34 feet and has a storage capacity of 268 acre-feet. The dam serves the primary purpose of water supply, ensuring a reliable source of water for the surrounding area.

Managed by the California Department of Water Resources (DWR) under the Safety of Dams program, Sunset South Basin is subject to regular inspections and state regulations to maintain its structural integrity and operational safety. With a high hazard potential, the dam has been assessed as satisfactory in condition as of September 2017. In case of emergencies, preparedness measures are in place, although specific details regarding emergency action plans and risk assessments are not provided in the available data.

Despite its relatively small surface area of 12 acres, Sunset South Basin plays a significant role in water resource management in the region. With Nancy Pelosi representing the district, this dam signifies the ongoing efforts to sustainably manage water resources and mitigate risks associated with infrastructure in the face of changing climate patterns.