Naz Lake, located in Napa, California, is a privately owned Earth-type dam that serves as a crucial water supply source for irrigation and domestic use in the area. Completed in 1955, this dam stands at a height of 29 feet and has a storage capacity of 150 acre-feet. It is regulated by the California Department of Water Resources and undergoes regular inspections to ensure its structural integrity and compliance with safety standards.

The significant hazard potential of Naz Lake highlights the importance of ongoing monitoring and maintenance to mitigate any risks associated with the dam. Despite this, the condition assessment in 2017 deemed the structure to be satisfactory, providing a sense of assurance to the community relying on its vital water storage capabilities. With a drainage area of 0.16 square miles and a maximum discharge capacity, Naz Lake plays a critical role in managing water resources and supporting agricultural activities in the region.

Overall, Naz Lake stands as a testament to the importance of sustainable water resource management and climate resilience. Its presence not only ensures access to essential water supplies but also underscores the need for effective regulatory oversight and emergency preparedness to safeguard against potential hazards and ensure the continued reliability of this essential infrastructure.