Slurry Pond #2 Reservoir Report

Last Updated: December 5, 2025

Slurry Pond #2, located in Dias, Pennsylvania, is a privately owned earth dam used for tailings storage.


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Summary

Standing at a height of 40 feet and spanning 2500 feet in length, this pond has a storage capacity of 110 acre-feet. Despite not being regulated by the state, the Mine Safety and Health Administration oversees its operations and inspections, highlighting its significant hazard potential.

While the exact year of completion and current condition assessment are not available, the dam's hazard potential is considered significant. With no emergency action plan in place and limited risk assessment measures, there is a need for increased monitoring and management to ensure the safety of the surrounding area. The dam's location in Indiana County, Pennsylvania, underscores the importance of proactive measures to mitigate any potential risks associated with its operation.

As water resource and climate enthusiasts, it is crucial to stay informed about the status of structures like Slurry Pond #2. Given its significant hazard potential and lack of state regulation, there is a need for increased attention to ensure the safety and integrity of the dam. Ongoing monitoring, risk assessment, and emergency preparedness are essential to prevent any potential disasters and protect the surrounding community and environment from the impacts of a dam failure.

Dam Length

2500

Dam Height

40

Primary Dam Type

Earth

Nid Storage

110

Hazard Potential

Significant

Nid Height

40
       
Seasonal Comparison

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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.