Overview
Santo Domingo Tonalá wastewater treatment plant in Oaxaca, Mexico, provides secondary treatment for a small community of 2,738 people, discharging 259.20 units of treated effluent.
The Santo Domingo Tonalá wastewater treatment plant serves the community of Santo Domingo Tonalá in the state of Oaxaca, Mexico. It is a secondary treatment facility designed for a capacity of 432.00 units, currently treating a discharge volume of 259.20 units, serving a population of 2,738. As a secondary treatment plant, it meets the standard level required for municipal wastewater in Mexico under the national water law (Ley de Aguas Nacionales) and NOM-001-SEMARNAT-1996, which sets discharge limits for pollutants. The plant's design capacity and current flow indicate it operates below full capacity, allowing for future growth. The treated effluent is discharged into local water bodies, contributing to the protection of the region's hydrology. Oaxaca's watersheds drain into the Pacific Ocean, and proper treatment helps preserve downstream ecosystems and water quality for communities and agriculture.
Environmental context
The plant discharges into a local watercourse that is part of the broader drainage system in Oaxaca, ultimately flowing toward the Pacific Ocean. The region's watersheds support diverse aquatic life and are important for local agriculture and drinking water supplies. Proper wastewater treatment reduces nutrient and pathogen loads, protecting downstream ecosystems and human health.
Frequently asked questions
The plant is located in Santo Domingo Tonalá, in the state of Oaxaca, Mexico.
The plant serves a population of 2,738 people.
The plant provides secondary treatment, which typically involves biological processes to reduce organic matter and suspended solids before discharge.
In Mexico, wastewater treatment is regulated under the Ley de Aguas Nacionales and NOM-001-SEMARNAT-1996, which set maximum permissible limits for pollutants in discharges to national waters.
For small communities like Santo Domingo Tonalá, secondary treatment is standard and sufficient to meet national discharge standards, protecting local water bodies and public health.
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