Pond 22 Reservoir Report

Last Updated: December 11, 2025

Pond 22 in Ellsworth, Pennsylvania is a private water resource primarily used for tailings disposal.


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Summary

The dam structure is of earth type, with a height of 1 foot and a storage capacity of 1 acre-foot. Although the dam is not regulated by the state, it falls under the jurisdiction of the Mine Safety and Health Administration for inspection and enforcement. The last inspection date was in April 2021, with a hazard potential rated as high.

Located in Washington County, Pennsylvania, Pond 22 poses a significant risk due to its high hazard potential and lack of available condition assessment. While the dam is not state-regulated, it is important to note that it is designated for tailings disposal, highlighting the need for consistent monitoring and maintenance to prevent potential disasters. The dam's owner, a private entity, is responsible for ensuring the safety and integrity of the structure.

Given the critical nature of water resources and climate change impacts, enthusiasts in this field may find interest in exploring the complexities of Pond 22. This site serves as a reminder of the importance of effective dam management and the potential risks associated with private ownership of essential water infrastructure. As efforts continue to address climate challenges, understanding and addressing the vulnerabilities of such structures become increasingly crucial for sustainable water resource management.

Dam Length

1

Dam Height

1

Primary Dam Type

Earth

Nid Storage

1

Hazard Potential

High

Nid Height

1
       
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Dam Data Reference

Condition Assessment

Satisfactory
No existing or potential dam safety deficiencies are recognized. Acceptable performance is expected under all loading conditions (static, hydrologic, seismic) in accordance with the minimum applicable state or federal regulatory criteria or tolerable risk guidelines.
Fair
No existing dam safety deficiencies are recognized for normal operating conditions. Rare or extreme hydrologic and/or seismic events may result in a dam safety deficiency. Risk may be in the range to take further action. Note: Rare or extreme event is defined by the regulatory agency based on their minimum
Poor A dam safety deficiency is recognized for normal operating conditions which may realistically occur. Remedial action is necessary. POOR may also be used when uncertainties exist as to critical analysis parameters which identify a potential dam safety deficiency. Investigations and studies are necessary.
Unsatisfactory
A dam safety deficiency is recognized that requires immediate or emergency remedial action for problem resolution.
Not Rated
The dam has not been inspected, is not under state or federal jurisdiction, or has been inspected but, for whatever reason, has not been rated.
Not Available
Dams for which the condition assessment is restricted to approved government users.

Hazard Potential Classification

High
Dams assigned the high hazard potential classification are those where failure or mis-operation will probably cause loss of human life.
Significant
Dams assigned the significant hazard potential classification are those dams where failure or mis-operation results in no probable loss of human life but can cause economic loss, environment damage, disruption of lifeline facilities, or impact other concerns. Significant hazard potential classification dams are often located in predominantly rural or agricultural areas but could be in areas with population and significant infrastructure.
Low
Dams assigned the low hazard potential classification are those where failure or mis-operation results in no probable loss of human life and low economic and/or environmental losses. Losses are principally limited to the owner's property.
Undetermined
Dams for which a downstream hazard potential has not been designated or is not provided.
Not Available
Dams for which the downstream hazard potential is restricted to approved government users.