Lake Paupackan, located in Wayne County, Pennsylvania, is a private reservoir used primarily for recreation. The dam that creates the lake is an earth structure with a height of 11 feet and a length of 390 feet, completed in 1914. With a normal storage capacity of 765 acre-feet and a surface area of 239 acres, the lake is situated in the Paupack Township and is regulated by the Pennsylvania Department of Environmental Protection.

Despite its age, Lake Paupackan has undergone structural modifications in 2006 and hydraulic modifications in 2013 to ensure its safety and functionality. The dam is inspected regularly, with the last inspection conducted in June 2020, resulting in a satisfactory condition assessment. However, due to its high hazard potential, it is crucial for emergency action plans to be in place to mitigate any risks associated with the dam.

Enthusiasts of water resources and climate will find Lake Paupackan to be an intriguing example of a privately owned reservoir in Pennsylvania that serves both recreational and regulatory purposes. Its historical significance, coupled with ongoing maintenance and safety measures, make it a noteworthy site for those interested in the intersection of water management, infrastructure, and environmental protection.