Underground Mine Water Management Storage Impound. Reservoir Report
Last Updated: December 5, 2025
Located in Harrisburg, Illinois, the Underground Mine Water Management Storage Impoundment is a privately owned facility regulated by the Illinois Department of Natural Resources.
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Summary
Primarily used for water supply, this Earth dam structure stands at a height of 15 feet with a storage capacity of 62 acre-feet. While the dam has a low hazard potential, its condition assessment is currently not available, and the last inspection was conducted in January 2004.
Managed by the Mine Safety and Health Administration, this impoundment serves as a vital resource for water management in the region. Despite its modest size, the facility plays a crucial role in ensuring adequate water supply for local communities. With state-mandated inspections and enforcement in place, the Underground Mine Water Management Storage Impoundment adheres to regulatory standards to maintain its operational integrity and safety.
As an essential water infrastructure asset in Saline County, Illinois, this storage impoundment exemplifies the intersection of underground mining activities and water resource management. With a focus on water supply and safety, the facility contributes to the sustainable development and resilience of the local area. Moving forward, continued monitoring and adherence to regulatory requirements will be key to ensuring the effective management of this vital resource for years to come.
Dam Height |
15 |
Primary Dam Type |
Earth |
Nid Storage |
62 |
Hazard Potential |
Low |
Nid Height |
15 |
Seasonal Comparison
Weather Forecast
Nearby Streamflow Levels
Dam Data Reference
Condition Assessment
SatisfactoryNo 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
HighDams 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.
Underground Mine Water Management Storage Impound.