Horace Lagoon Wastewater Treatment Plant, Horace, North Dakota

Horace Lagoon is a wastewater treatment facility located in Horace, North Dakota, United States. The plant serves the local community with a population of approximately 2,430, operating as a secondary treatment facility under the regulatory framework of the US Clean Water Act. The plant has a designed capacity of 946.35 cubic meters per day and discharges an average volume of 757.08 cubic meters per day. As a secondary treatment plant, it provides biological treatment to reduce organic matter and suspended solids, meeting the national standards for municipal wastewater treatment. The treated effluent is discharged into local waterways that ultimately drain into the Red River of the North, which flows northward into Lake Winnipeg in Canada. The plant plays a key role in protecting the water quality of the Red River Basin, supporting aquatic life and downstream ecosystems.

The plant discharges into the Red River of the North basin, which flows through North Dakota and Minnesota into Manitoba, Canada, eventually reaching Lake Winnipeg. The watershed supports diverse aquatic habitats and is important for migratory birds. The plant's secondary treatment helps reduce nutrient loading and protect downstream water quality.