Batallon Wastewater Treatment Plant, Ciudad Constitución, Baja California Sur

Batallon is a wastewater treatment plant located in Ciudad Constitución, in the municipality of Comondú, Baja California Sur, Mexico. The plant serves a population of approximately 24,318 residents, placing it in the medium agglomeration category for Mexican wastewater infrastructure. As a Mexican facility, Batallon operates under national water quality standards (NOM-001-SEMARNAT-1996 and subsequent updates) which set discharge limits for pollutants. Plants of this scale typically employ secondary treatment to meet regulatory requirements for municipal wastewater. The plant's treated effluent is discharged into the local environment, likely into an arroyo or dry riverbed that flows intermittently. The region is arid, and water resources are scarce, making wastewater treatment crucial for protecting groundwater and the nearby Pacific coastal zone. The plant helps prevent contamination of the surrounding ecosystem and supports public health in the community.

Batallon plant discharges into the arid watershed of Baja California Sur, where surface water is intermittent and groundwater is the primary resource. The region drains toward the Pacific Ocean, approximately 50 km west of Ciudad Constitución. The coastal environment supports diverse marine life, including important fisheries and migratory species. Proper treatment is essential to prevent nutrient and pathogen pollution that could impact coastal water quality and local ecosystems.