Hatfield Ferry Sedimentation Pond, located in Monongahela Township, Pennsylvania, is a privately-owned structure regulated by the Pennsylvania Department of Environmental Protection. This sedimentation pond plays a crucial role in managing sediment runoff and water quality in the TR Little Whiteley Creek, with a storage capacity of 15.5 acre-feet and a normal storage level of 1.15 acre-feet. The dam, primarily constructed for sediment control, stands at a height of 25 feet and has a length of 110 feet, covering a surface area of 0.43 acres.

Despite its satisfactory condition assessment, the Hatfield Ferry Sedimentation Pond poses a significant hazard potential, necessitating biennial inspections to ensure its structural integrity and safety. The dam, categorized as an earth dam with buttress core types, has not undergone any modifications since its construction. While the last inspection took place in December 2017, the structure remains under the jurisdiction of the Pennsylvania authorities for permitting, inspection, and enforcement, highlighting its vital role in water resource management within the Greene County region.

This sedimentation pond serves as a vital infrastructure for sediment control and water quality management in the area, contributing to the protection of the TR Little Whiteley Creek watershed. With its strategic location and purpose, the Hatfield Ferry Sedimentation Pond represents a significant asset in the ongoing efforts to mitigate sediment runoff and preserve the ecological balance of the region. As climate and water resource enthusiasts, understanding the role and significance of such structures is essential for promoting sustainable water management practices and safeguarding the environment for future generations.