MOTT LAGOON Wastewater Treatment Plant, Mott, North Dakota

MOTT LAGOON is a wastewater treatment facility located in Mott, Hettinger County, North Dakota, United States. It serves a small community of 721 residents, providing secondary treatment to meet state and federal water quality standards. The plant operates with a designed capacity of 378.54 cubic meters per day and a similar discharge volume, indicating full utilization. As a secondary treatment facility, it employs biological processes to reduce organic matter and suspended solids before discharge. Under the US Clean Water Act, such plants must comply with National Pollutant Discharge Elimination System (NPDES) permits, which set effluent limits to protect receiving waters. The treated effluent is discharged into local drainage systems that flow into the Heart River, a tributary of the Missouri River. The Missouri River ultimately drains into the Mississippi River and the Gulf of Mexico. This plant plays a role in protecting the water quality of the Heart River and downstream ecosystems, supporting aquatic life and recreational uses.

The plant discharges into local waterways that drain into the Heart River, a tributary of the Missouri River. The Missouri River flows into the Mississippi River and eventually the Gulf of Mexico. This watershed supports diverse aquatic species and is important for regional agriculture and recreation. The plant's secondary treatment helps reduce nutrient and pollutant loads, protecting downstream water quality.