Plains Lpg Dam, also known as Bumstead, is a privately owned structure located in Maricopa, Arizona, specifically in the city of Glendale. Built in 1977, this earth dam stands at a height of 23 feet and has a storage capacity of 297 acre-feet, with a normal storage level of 296 acre-feet. The dam serves a primary purpose of "Other," with its design consisting of stone core and an overall length of 2835 feet.

State regulated by the Arizona Department of Water Resources, Plains Lpg Dam has a high hazard potential and is classified as being in satisfactory condition as of its last assessment in November 2017. Despite the lack of a spillway, this dam has a surface area of 11 acres and is situated in an area with a high risk assessment rating of 2. While it has not undergone any modifications in recent years, regular inspections are conducted to ensure its structural integrity and adherence to safety standards.

The dam's location in a region with a high risk of inundation underscores the importance of effective risk management measures. With its proximity to urban areas and critical infrastructure, it is crucial for Plains Lpg Dam to have updated emergency action plans and adequate communication channels in place. As an integral part of water resource management in Arizona, it is imperative to monitor and address any potential risks associated with this essential infrastructure to safeguard both the environment and the surrounding communities.