Overview
Tonalá wastewater treatment plant serves approximately 45,090 people in Tonalá, Chiapas, Mexico. The facility is located within 50 km of the coast, discharging into the local watershed.
The Tonalá wastewater treatment plant is a municipal facility serving the city of Tonalá in the state of Chiapas, Mexico. With a population served of around 45,090, it is a medium-sized agglomeration under Mexican water management frameworks. The plant is situated near the Pacific coast, within 50 km of the shoreline, and its operations are subject to national regulations under the Ley de Aguas Nacionales and NOM-001-SEMARNAT standards for wastewater discharge. As a plant of this scale in Mexico, it is expected to provide at least secondary treatment to meet the required effluent quality standards. The regulatory framework mandates that municipal wastewater be treated to protect receiving water bodies and public health. Typical plants in this region employ biological treatment systems such as activated sludge or lagoons. The treated effluent likely discharges into a local river or stream that flows toward the Pacific Ocean, contributing to the coastal watershed of the Gulf of Tehuantepec. This area supports diverse aquatic ecosystems and is important for local fisheries and agriculture. Proper treatment is essential to prevent nutrient loading and contamination of coastal waters, which can affect marine life and human activities along the coast.
Environmental context
The plant's discharge enters the local drainage network that ultimately reaches the Pacific Ocean via the Gulf of Tehuantepec. This coastal region is ecologically sensitive, supporting mangrove forests, estuaries, and marine habitats that are vital for fish and bird populations. The watershed experiences seasonal rainfall patterns typical of tropical climates, and the receiving waters are used for fishing and recreation. Effective wastewater treatment helps maintain water quality and protect these downstream ecosystems from pollution.
Frequently asked questions
The plant is located in Tonalá, Chiapas, Mexico, at Avenida Joaquín Miguel Gutiérrez, Tonalá, Chiapas, 30500.
The plant serves approximately 45,090 people in the city of Tonalá and surrounding areas.
The treated effluent is discharged into a local river or stream that flows toward the Pacific Ocean, entering the Gulf of Tehuantepec.
The plant operates under Mexico's Ley de Aguas Nacionales and NOM-001-SEMARNAT, which set effluent quality standards for municipal wastewater to protect water bodies.
For a medium-sized agglomeration in Mexico, secondary treatment is typically required to meet national discharge standards, often using biological processes like activated sludge.
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