Mar Negro Wastewater Treatment Plant | Aguascalientes, Mexico

Mar Negro is a wastewater treatment plant located in the town of Mar Negro, within the municipality of Rincón de Romos, Aguascalientes, Mexico. It serves a small population of 730 residents, reflecting its role in a rural or semi-urban community. The plant is part of Mexico's national wastewater infrastructure, which is regulated by the National Water Commission (CONAGUA) under the Federal Water Rights Law. The plant provides secondary treatment, which typically involves biological processes to reduce organic matter and suspended solids. It has a designed capacity of 155.52 cubic meters per day and currently treats an average of 69.12 cubic meters daily, indicating a capacity utilization of about 44%. This suggests the plant has room for future growth or seasonal variations in flow. The treated effluent is discharged into a local water body, likely an arroyo or stream that drains into the Rio San Pedro or the Rio Aguascalientes basin. This region is part of the endorheic basin of the Lerma-Santiago-Pacific hydrological system, which ultimately flows into the Pacific Ocean. The plant's operation helps protect local water quality and supports the ecological health of downstream aquatic habitats.

The plant discharges into a local watercourse that feeds into the Rio San Pedro, part of the Lerma-Santiago-Pacific basin. This watershed supports agricultural irrigation and provides habitat for native fish and bird species. The region's semi-arid climate makes water quality management critical for sustaining both human use and ecosystem health.