Treated Water Pond, located in Fallowfield Township, Pennsylvania, is a privately owned water resource regulated by the Pennsylvania Department of Environmental Protection. This earth dam structure, completed in 1966, serves a primary purpose of "Other" and has a storage capacity of 877 acre-feet. With a dam height of 58.8 feet and a length of 3400 feet, the pond covers a surface area of 25 acres and drains an area of 0.06 square miles.

The dam's hazard potential is rated as "High", but its condition assessment is deemed "Satisfactory". It is regularly inspected by the Mine Safety and Health Administration, with the last inspection taking place in April 2020. Despite being non-federally owned, Treated Water Pond falls under state jurisdiction and is subject to permitting, inspection, and enforcement by the Pennsylvania Department of Environmental Protection. Its location near Sawmill Creek in Washington County, Pennsylvania highlights its importance in managing water resources in the region.

For water resource and climate enthusiasts, Treated Water Pond represents a significant infrastructure that plays a crucial role in water management and regulation. Its storage capacity, structural characteristics, and regulatory oversight make it a key component in ensuring water quality and safety in the area. As climate change continues to impact water resources, understanding and monitoring structures like Treated Water Pond are essential for sustainable water management practices in the region.