Tototlán Wastewater Treatment Plant, Tototlán, Jalisco, Mexico

The Tototlán wastewater treatment plant is located in the municipality of Tototlán, within the Región Ciénega of Jalisco, Mexico. It serves a population of approximately 11,865 residents, classifying it as a medium-sized agglomeration under Mexican wastewater regulations. The plant is situated inland, away from coastal areas, and its operations are part of the local municipal infrastructure. As a Mexican wastewater facility, the plant is subject to the national water quality standards (Normas Oficiales Mexicanas, NOMs) and the Ley de Aguas Nacionales. For a community of this size, secondary treatment is typically required to meet discharge standards. The regulatory framework ensures that effluent quality is monitored and controlled to protect public health and the environment. The treated wastewater from the plant is discharged into local water bodies that eventually drain into the Lerma-Chapala basin, one of Mexico's most important hydrological systems. This basin supports diverse aquatic life and provides water for agriculture and human consumption. The plant plays a crucial role in maintaining water quality in this region, helping to reduce pollution loads and protect downstream ecosystems.

The Tototlán plant discharges into the Lerma-Chapala basin, which feeds into Lake Chapala, Mexico's largest freshwater lake. This lake is ecologically significant, supporting a variety of fish and bird species and serving as a critical water source for the Guadalajara metropolitan area. The plant's operations help mitigate nutrient and pollutant inputs, preserving the lake's water quality and biodiversity.