Overview
Atongo wastewater treatment plant in Cadereyta Jiménez, Nuevo León, Mexico, provides secondary treatment for a small population of 913. It discharges 86.40 cubic meters of treated wastewater daily.
The Atongo wastewater treatment plant serves the community of Atongo de Abajo in Cadereyta Jiménez, Nuevo León, Mexico. It is a small-scale facility designed to handle the wastewater needs of approximately 913 residents, reflecting its role in local sanitation infrastructure. The plant employs secondary treatment, a standard biological process that reduces organic matter and suspended solids. With a designed capacity of 1,296.00 cubic meters per day, it operates well below its potential, treating 86.40 cubic meters daily. As a Mexican facility, it falls under national water quality regulations (NOM-001-SEMARNAT-1996) that set discharge limits for pollutants. The treated effluent is discharged into local water bodies that eventually drain into the Gulf of Mexico via the San Juan River and the Rio Grande basin. This inland location, over 10 km from the coast, reduces direct marine impact but still influences downstream aquatic ecosystems in the region.
Environmental context
The plant's discharge enters the local watershed, which flows through the San Juan River and into the Rio Grande (Rio Bravo) before reaching the Gulf of Mexico. This river system supports diverse aquatic life and is an important water source for agriculture and communities in northeastern Mexico. The secondary treatment helps protect these downstream environments from excessive nutrient loading and organic pollution.
Frequently asked questions
The Atongo plant is located on Calle Morelos in the Atongo de Abajo area of Cadereyta Jiménez, Nuevo León, Mexico.
The plant serves a small population of 913 residents in the Atongo de Abajo community.
The plant uses secondary treatment, a biological process that removes organic matter and suspended solids before discharging the treated water.
The plant's discharge flows into the San Juan River and eventually the Rio Grande (Rio Bravo), which drains into the Gulf of Mexico.
The plant operates under Mexican standard NOM-001-SEMARNAT-1996, which sets maximum permissible limits for pollutants in wastewater discharges into national waters.
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