Agua Fría Wastewater Treatment Plant, Sinaloa, Mexico

Agua Fría is a municipal wastewater treatment plant located in the town of Agua Fría, within the municipality of Sinaloa, Sinaloa, Mexico. The plant serves a small population of 365 residents, reflecting its role in a rural or small community setting. It is part of Mexico's national wastewater infrastructure, which is regulated under the Ley de Aguas Nacionales and managed by CONAGUA (Comisión Nacional del Agua). The plant provides secondary treatment, a standard level for small communities in Mexico, which typically involves biological processes to reduce organic matter and suspended solids. The designed capacity is 34.56 m³/day, matching the current discharge volume, indicating full utilization. Secondary treatment in such plants often uses activated sludge or lagoon systems, common in the region. The treated effluent is likely discharged into a local watercourse, contributing to the health of the surrounding watershed. The plant is located inland, over 50 km from the coast, reducing direct marine impact. Its operation supports the protection of local water resources and downstream ecosystems, including rivers that drain into the Gulf of California, an ecologically important area for fisheries and biodiversity.

The plant discharges into a local water body within the Sinaloa River basin, which flows into the Gulf of California. This region supports diverse aquatic life, including migratory fish and shrimp, and is important for local fisheries. Proper wastewater treatment helps prevent nutrient pollution and protects downstream estuarine habitats.