Cachoana Wastewater Treatment Plant, Sinaloa, Mexico

Cachoana wastewater treatment plant is located in the town of Cachoana, within the municipality of Ahome, Sinaloa, Mexico. It serves a small population of 548 residents, reflecting its role in a rural or peri-urban setting. The plant is situated along Carretera México 15 near Higueras de Zaragoza. The plant provides secondary treatment, a standard level for municipal wastewater in Mexico under the official Mexican standards (NOM-001-SEMARNAT). It has a designed capacity of 69.12 m³/day and currently discharges 51.84 m³/day, indicating it operates below its full capacity. As a small facility, it contributes to local sanitation and water quality management. The treated effluent is likely discharged into a local watercourse that drains into the Pacific Ocean, given the region's coastal geography. The plant helps protect downstream water bodies and ecosystems from untreated sewage, supporting public health and environmental sustainability in the Ahome area.

The plant's discharge likely enters a local arroyo or drainage channel that flows into the Gulf of California (Sea of Cortez), a biologically rich marine environment. The region supports diverse aquatic life, including fisheries and migratory species. Proper treatment reduces nutrient and pathogen loads, helping maintain water quality in this ecologically sensitive coastal zone.