La Cruz Wastewater Treatment Plant, La Cruz, Chihuahua, Mexico

La Cruz wastewater treatment plant is located in the town of La Cruz, in the state of Chihuahua, Mexico. The facility serves a population of approximately 2,738 people, making it a small-scale municipal treatment plant in a semi-arid region of northern Mexico. The plant provides secondary treatment, which is the standard level required for municipal wastewater in Mexico under the national water law (Ley de Aguas Nacionales) and NOM-001-SEMARNAT-1996. The plant has a designed capacity of 397.44 m³/day and currently treats 259.20 m³/day, indicating it operates below its full capacity. The treated effluent is discharged into the local environment, likely into an arroyo or river that drains into the Rio Conchos basin, which flows into the Rio Grande (Rio Bravo) and ultimately to the Gulf of Mexico. The plant plays a key role in protecting water quality in this arid region where water resources are scarce and ecologically sensitive.

The plant discharges into the Rio Conchos watershed, a tributary of the Rio Grande (Rio Bravo), which flows to the Gulf of Mexico. This region is semi-arid, and the river supports agricultural irrigation and riparian habitats. Downstream, the Rio Grande is a critical water source for both Mexico and the United States, and its ecological health is important for migratory birds and aquatic species.