Brentwood Park, located in Mono Vista, California, is a privately owned dam that serves as a crucial water supply source in the area. Completed in 1964, this earth dam stands at a height of 58 feet and has a hydraulic height of 54.2 feet, with a storage capacity of 80 acre-feet. The dam sits on Tr Sullivan Creek and covers a surface area of 6 acres, with a drainage area of 0.5 square miles.

Managed by the California Department of Water Resources (DWR) under the Safety of Dams program, Brentwood Park is subject to state regulation, permitting, inspection, and enforcement. The dam is primarily used for water supply but also offers recreational opportunities in the surrounding area. Despite being classified as having a high hazard potential, the dam's condition assessment is rated as satisfactory as of September 2017.

With its strategic location and vital role in water supply, Brentwood Park is a key asset to the community and contributes to the region's water resource management and climate resilience efforts. Regular inspections and adherence to safety regulations ensure that the dam continues to serve its purpose effectively while providing recreational benefits to the local area. As a privately owned structure, its maintenance and operation are critical in ensuring the safety and sustainability of the water supply system it supports.