Beulah Lagoon Wastewater Treatment Plant, Beulah, North Dakota

Beulah Lagoon is a wastewater treatment facility located in Beulah, Mercer County, North Dakota. The plant serves a population of approximately 3,121 residents and has a designed capacity of 1.00 million gallons per day. It operates as a lagoon system, a common treatment method for small communities in the region. As a facility in the United States, Beulah Lagoon operates under the Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for discharges into surface waters. For small agglomerations like Beulah, lagoon systems are typical and provide secondary treatment through natural biological processes. The designed capacity suggests it is sized for the current population. The treated effluent from Beulah Lagoon likely discharges into a local water body within the Missouri River basin. The Missouri River flows through North Dakota and ultimately drains into the Mississippi River and the Gulf of Mexico. The facility plays a role in protecting local water quality in the semi-arid Great Plains region.

Beulah Lagoon discharges into a receiving water body within the Missouri River watershed. The Missouri River flows eastward through North Dakota, eventually joining the Mississippi River and draining into the Gulf of Mexico. The local environment includes prairie landscapes and agricultural areas, where maintaining water quality is important for aquatic life and downstream uses. The facility helps prevent nutrient and pathogen pollution in this sensitive watershed.