Genoa Ug Sewage Disposal Lgn Cells 1,2,3&4

Genoa Ug Sewage Disposal Lgn Cells 1,2,3&4 is an earth dam located in Ottawa County, Ohio, built in 1963. It carries a Significant hazard potential classification and has a satisfactory condition assessment.

About Genoa Ug Sewage Disposal Lgn Cells 1,2,3&4

The primary purpose of Genoa Ug Sewage Disposal Lgn Cells 1,2,3&4 is tailings. Tailings dams contain waste material from mining operations — typically a slurry of finely ground rock left over after valuable minerals have been extracted. These structures require ongoing monitoring because tailings can contain heavy metals and other contaminants. The dam is owned by Village Of Genoa (local government). It impounds the Offstream near Genoa.

The dam stands 10 feet tall and stretches 4,629 feet across, creates a reservoir covering 24 acres, has a maximum storage capacity of 236 acre-feet, and collects water from a drainage area of 0 square miles. Completed in 1963, the structure is well into its service life at over 50 years old.

This dam has a significant hazard potential classification, meaning that a failure could cause significant economic damage — flooding roads, bridges, or property downstream — but is not expected to result in loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. The most recent inspection on record was 10/10/2024.

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Significant HazardSatisfactory ConditionEmergency Action Plan: No

Location

StateOhio
CountyOttawa
Nearest CityGenoa
River/StreamOffstream
Coordinates41.51028, -83.34139

Physical Characteristics

Dam TypeEarth
NID Height10 ft
Dam Height10 ft
Dam Length4,629 ft
Year Completed1963 (63 years old)

Storage & Hydraulics

NID Storage236 acre-ft
Max Storage236 acre-ft
Normal Storage173 acre-ft
Surface Area24 acres
Drainage Area0 sq mi
Max Discharge50 cfs

Ownership & Safety

PurposeTailings
OwnerVillage of Genoa
Owner TypeLocal Government
Hazard ClassificationSignificant
Condition AssessmentSatisfactory
Last Inspection10/10/2024
Emergency Action PlanNo

Identifiers

NID IDOH02960
Federal IDOH02960
More InfoState Dam Safety Program

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