Las Trojes Blancas Wastewater Treatment Plant, Ocampo, Guanajuato

Las Trojes Blancas is a wastewater treatment plant located in Ocampo, Guanajuato, Mexico, serving a population of approximately 1,360 residents. The facility operates secondary treatment, which is appropriate for a small community and helps reduce organic pollutants before discharge. The plant has a designed capacity of 128.74 cubic meters per day, matching its current discharge volume. Under Mexican regulations (NOM-001-SEMARNAT), secondary treatment is the standard for municipal wastewater to meet water quality criteria for receiving bodies. For a plant of this scale, compliance with national discharge standards ensures protection of local water resources. The plant's operational context aligns with Mexico's efforts to expand sanitation coverage in rural and semi-urban areas. The treated effluent is discharged into local watercourses that drain into the Lerma River basin, which flows into Lake Chapala, Mexico's largest freshwater lake. This watershed supports agricultural irrigation and diverse aquatic life. Proper treatment at Las Trojes Blancas helps maintain water quality in this ecologically significant basin.

The plant discharges into the Lerma River basin, which flows into Lake Chapala, the largest freshwater lake in Mexico. This watershed supports agriculture, fisheries, and biodiversity, including endemic fish species. Secondary treatment reduces organic load and suspended solids, protecting downstream water quality and aquatic habitats in this semi-arid region.