Cienega de Ceniceros Wastewater Treatment Plant, Ceniceros de Abajo, Chihuahua

Cienega de Ceniceros is a municipal wastewater treatment plant located in Ceniceros de Abajo, a locality in the municipality of Matamoros, Chihuahua, Mexico. The plant serves a small population of 294 residents, reflecting its role in a rural or semi-urban setting. The plant provides secondary treatment, which is the standard biological treatment process for removing organic matter and suspended solids. With a designed capacity of 86.40 cubic meters per day and an actual discharge volume of 69.12 cubic meters per day, it operates at about 80% capacity. In Mexico, wastewater treatment plants are regulated under the National Water Law (Ley de Aguas Nacionales) and NOM-001-SEMARNAT-1996, which sets discharge limits for pollutants. The treated effluent is likely discharged into a local watercourse that drains into the Rio Conchos basin, a major tributary of the Rio Grande (Rio Bravo). This watershed supports agricultural activities and provides water for communities downstream. Proper treatment helps protect water quality in this arid region where water resources are scarce.

The plant discharges into the Rio Conchos basin, which flows into the Rio Grande (Rio Bravo) and ultimately reaches the Gulf of Mexico. This watershed is ecologically important for sustaining agriculture and wildlife in the Chihuahuan Desert. Secondary treatment reduces organic load and suspended solids, helping to maintain water quality in a region where water scarcity and pollution are significant concerns.