PISEK LAGOON Wastewater Treatment Plant, Pisek, North Dakota

PISEK LAGOON is a municipal wastewater treatment facility located in Pisek, Walsh County, North Dakota. Serving a small population of 106 residents, the plant provides secondary treatment for the community's wastewater. The plant has a designed capacity of 113.56 megaliters and discharges approximately 37.85 megaliters annually. The plant employs secondary treatment, which is the standard level required by the US Clean Water Act for municipal wastewater facilities. Under the National Pollutant Discharge Elimination System (NPDES), plants of this scale must meet effluent limits for biochemical oxygen demand and total suspended solids. The treatment process likely involves biological treatment followed by sedimentation. The treated effluent is discharged into local waterways that drain into the Red River Basin, ultimately flowing north into Lake Winnipeg in Canada. The plant plays a crucial role in protecting downstream water quality in this agriculturally intensive region of the Red River Valley.

The plant discharges into the Red River Basin, which flows northward through North Dakota and Manitoba into Lake Winnipeg. The Red River Valley is characterized by flat, fertile farmland and is prone to seasonal flooding. The watershed supports diverse aquatic life and is an important migratory corridor for waterfowl. Protecting water quality is critical to prevent nutrient loading and algal blooms in downstream Lake Winnipeg.