Jesús María Wastewater Treatment Plant, Sinaloa | Secondary Treatment for 1,825 Residents

The Jesús María wastewater treatment plant is located in Jesús María, a locality in the municipality of Culiacán, Sinaloa, Mexico. This facility serves a small population of 1,825 residents, reflecting its role in a rural or peri-urban setting. The plant is situated inland, away from coastal zones, and is part of the regional water management infrastructure in northwestern Mexico. The plant employs secondary treatment, which is the standard biological process for removing organic matter and suspended solids. Under Mexican regulations (NOM-001-SEMARNAT-1996 and subsequent updates), secondary treatment is required for discharges to water bodies to meet quality standards. The plant has a designed capacity of 691.20 units and currently treats 172.80 units, indicating spare capacity for future growth. The facility operates under the oversight of the National Water Commission (CONAGUA) and the state water authority. The treated effluent is discharged into the local watershed, which ultimately drains into the Pacific Ocean via the Culiacán River system. The region's water bodies support agricultural irrigation and aquatic ecosystems. Proper treatment helps protect downstream water quality and public health in the Culiacán Valley, an important agricultural area.

The plant discharges into the Culiacán River basin, which flows through Sinaloa and empties into the Pacific Ocean near the city of Culiacán. The river supports diverse aquatic life and is used for irrigation in the surrounding agricultural region. Downstream, the estuary and coastal waters are ecologically sensitive, hosting migratory birds and marine species. Secondary treatment reduces organic pollution, helping maintain water quality for both human use and ecosystem health.