Finnon Lake, located in El Dorado County, California, is a significant water resource for the region, serving as a vital water supply source. The dam at Finnon Lake, completed in 2012, stands at a height of 46 feet and has a storage capacity of 400 acre-feet. With a surface area of 35 acres and a drainage area of 0.27 square miles, Finnon Lake plays a crucial role in providing water for both recreational activities and domestic use.

Managed by a public utility, the dam at Finnon Lake is regulated by the Department of Water Resources (DWR) under the Safety of Dams program. The dam has been assessed as being in satisfactory condition, with a significant hazard potential. Regular inspections are conducted to ensure its structural integrity and safety. The surrounding area, including the Jay Bird Creek and the city of Coloma, benefits from the water supplied by Finnon Lake, contributing to the overall water resource management in the region.

Visitors to Finnon Lake can enjoy a range of recreational activities in addition to appreciating its role as a vital water supply source. The lake's serene surroundings and ample water storage capacity make it a valuable asset for both water resource and climate enthusiasts. With its strategic location and essential functions, Finnon Lake stands as a testament to the importance of sustainable water management practices in ensuring the well-being of communities and ecosystems in the area.