Edison Wwt Lagoon Reservoir Report
Last Updated: December 5, 2025
Edison Wwt Lagoon, located in Morrow County, Ohio, is a key water resource managed by the local government for tailings purposes.
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Summary
This earth dam structure, constructed in 2000 by URS Greiner Woodward Clyde, stands at a height of 10 feet and has a storage capacity of 107.5 acre-feet, with a normal storage level of 71.6 acre-feet. The lagoon covers an area of 11.6 acres and is fed by an unnamed tributary to Whetstone Creek.
Managed by the Department of Natural Resources in Ohio, the Edison Wwt Lagoon is subject to state regulation, permitting, inspection, and enforcement to ensure its safe operation. The dam has been assessed to have a significant hazard potential, but its condition is rated as satisfactory, with the latest inspection done in October 2020. The local authorities follow a regular inspection frequency of 5 years to monitor the dam's integrity and safety measures.
For water resource and climate enthusiasts, the Edison Wwt Lagoon presents an intriguing case study in dam management and environmental stewardship. With its unique design, purpose, and state oversight, this structure serves as a focal point for understanding the intersection of water management, infrastructure development, and regulatory compliance in the context of sustainable resource utilization and climate resilience.
Year Completed |
2000 |
Dam Length |
3540 |
Dam Height |
10 |
River Or Stream |
UNNAMED TRIBUTARY TO WHETSTONE CREEK |
Primary Dam Type |
Earth |
Surface Area |
11.6 |
Drainage Area |
0.01 |
Nid Storage |
107.5 |
Hazard Potential |
Significant |
Nid Height |
10 |
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.
Edison Wwt Lagoon