J&T Cattle Company No. 1, also known as Lower Reservoir, is a privately owned water storage facility located in Stanislaus County, California. This Earth type dam was completed in 2013 and serves the primary purpose of water supply for irrigation and other agricultural needs in the area. With a dam height of 22 feet and a storage capacity of 131.8 acre-feet, this reservoir plays a crucial role in managing water resources in the region.

Managed by the California Department of Water Resources (DWR) under the Safety of Dams program, J&T Cattle Company No. 1 is subject to state regulations, inspections, and enforcement to ensure its safety and compliance with guidelines. The dam has a low hazard potential and is currently assessed to be in fair condition as of September 2017. Regular inspections are conducted, with the last inspection taking place in January 2020, to monitor the structural integrity and overall performance of the reservoir.

Situated along Peaslee Creek and under the jurisdiction of the San Francisco District of the US Army Corps of Engineers, J&T Cattle Company No. 1 contributes to the local water supply and supports agricultural activities in the area. With its modest surface area of 15.7 acres and a hydraulic height of 17.94 feet, this reservoir showcases the importance of efficient water management practices in sustaining the region's water resources and adapting to changing climate conditions.