San Martin Jajalpa I Wastewater Treatment Plant, Ocoyoacac, Estado de Mexico

San Martin Jajalpa I is a wastewater treatment plant located in Ocoyoacac, Estado de Mexico, Mexico. It serves a population of 2,738 and provides secondary treatment, a standard level for communities of this size in the region. The plant has a designed capacity of 259.20 m3/day and currently discharges a corresponding volume of treated wastewater. The plant operates under Mexico's federal water management framework, which mandates treatment standards for municipal wastewater. For secondary treatment, biological processes remove organic matter and suspended solids, ensuring the effluent meets quality criteria before discharge. The plant's capacity utilization aligns with its design, indicating consistent operation. The treated effluent is discharged into local water bodies that eventually drain into the Lerma River basin, a major hydrological system in central Mexico. This basin supports agriculture, industry, and ecosystems, making proper treatment essential for protecting downstream water quality and public health.

The plant discharges into the Lerma River basin, which flows into Lake Chapala, Mexico's largest freshwater lake. This watershed supports diverse aquatic life and provides water for irrigation and human consumption. Secondary treatment helps reduce nutrient and organic loads, mitigating eutrophication risks in downstream water bodies.