Chet Harritt, also known as Jennings Lake, is a public utility water supply dam located in Lakeside, California. Built in 1962, this earth-type dam stands at a height of 200 feet and has a storage capacity of 9790 acre-feet. The primary purpose of Chet Harritt is to provide water for irrigation, recreation, and general water supply in the region.

Managed by the California Department of Water Resources (DWR) and regulated by the Safety of Dams agency, Chet Harritt plays a crucial role in water resource management in San Diego County. The dam spans 1117 feet in length and impounds water from the Quail Can Creek, with a drainage area of 1.8 square miles. Despite being classified as a high hazard potential structure, Chet Harritt is deemed to be in satisfactory condition based on its latest assessment in 2017.

With its scenic location and vital role in water supply, Chet Harritt is a significant asset in the region's infrastructure. As a key component in the local water management system, the dam continues to be a focal point for water resource and climate enthusiasts interested in understanding the intersection of water supply, recreation, and environmental conservation in Southern California.