Ejido El Alamo Wastewater Treatment Plant, Culiacán, Sinaloa

Ejido El Alamo is a wastewater treatment facility located in the Ejido el Álamo area of Culiacán, Sinaloa, Mexico. The plant serves a small population of 654 residents, providing secondary treatment to municipal wastewater in this agricultural region of northwestern Mexico. The plant operates with a design capacity of 77.76 units and currently treats an average discharge volume of 69.12 units, indicating a utilization rate of approximately 89%. Under Mexico's national water regulations (Ley de Aguas Nacionales), secondary treatment is the standard requirement for municipal wastewater, ensuring removal of organic matter and suspended solids before discharge. The treated effluent from Ejido El Alamo is discharged into local water bodies that ultimately drain into the Pacific Ocean via the Sinaloa River system. The plant's location within 50 km of the coast means its discharge contributes to the health of downstream aquatic ecosystems, including coastal lagoons and estuaries that support diverse marine life.

The plant discharges into the Sinaloa River basin, which flows westward through the state of Sinaloa and empties into the Gulf of California (Sea of Cortez). This coastal region supports important fisheries and mangrove ecosystems. The secondary treatment process helps protect downstream water quality, reducing nutrient loading that could otherwise contribute to eutrophication in the sensitive coastal waters.