Mill Service No 6, located in Westmoreland, Pennsylvania, is a privately owned earth dam completed in 1986 with a primary purpose designated as 'Other'. The dam stands at a height of 80 feet and spans a length of 3170 feet, providing a storage capacity of 581 acre-feet. It is situated on the TR Swickley Creek under the jurisdiction of the Pennsylvania Department of Environmental Protection, ensuring state-regulated permitting, inspection, and enforcement.

With a hazard potential rated as 'High', Mill Service No 6 has been assessed to be in satisfactory condition as of the last inspection in December 2020. Its location in South Huntingdon Township contributes to its critical role in water resource management within the region, with a drainage area of 0.02 square miles and a normal storage capacity of 538 acre-feet. Despite lacking specific spillway information, the dam's presence on the Swickley Creek serves as a vital component in the area's water infrastructure.

Mill Service No 6's significance lies in its contribution to flood control, water storage, and overall environmental management in the region. As a privately owned structure, it plays a crucial role in maintaining the balance of water resources in Westmoreland County. Enthusiasts of water resource management and climate-related issues would find interest in the operational and regulatory aspects of this dam, highlighting the intersection of human-made structures with natural systems to ensure sustainable water management for the future.