Macoupin Energy Refuse Disposal Area 6 Reservoir Report
Last Updated: December 22, 2025
Located in Macoupin, Illinois, the Macoupin Energy Refuse Disposal Area 6 is a privately owned facility that plays a crucial role in managing tailings.
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Summary
This Earth dam, completed in 1991, stands at a height of 117 feet and stretches over 13,800 feet in length. With a storage capacity of 9,050 acre-feet, it serves as a key resource for the surrounding area, with a surface area of 135.9 acres and a drainage area of 0.24 square miles.
Managed by the Mine Safety and Health Administration, this high-hazard potential site is subject to regular state inspections and enforcement measures to ensure its safety and integrity. While its condition assessment is not available, the facility's risk assessment indicates a moderate level of risk. The dam's spillway type is uncontrolled, with a width of 2 feet, and its outlet gates are also uncontrolled. Despite its potential risks, the Macoupin Energy Refuse Disposal Area 6 remains a critical component of the region's water resource and climate management infrastructure.
Year Completed |
1991 |
Dam Length |
13800 |
Dam Height |
117 |
River Or Stream |
TRIB SPANISH NEEDLE CREEK-OFFS |
Primary Dam Type |
Earth |
Surface Area |
135.9 |
Drainage Area |
0.24 |
Nid Storage |
9050 |
Outlet Gates |
Uncontrolled |
Hazard Potential |
High |
Foundations |
Unlisted/Unknown |
Nid Height |
117 |
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.
Macoupin Energy Refuse Disposal Area 6