Santa Teresita Wastewater Treatment Plant, Sinaloa, Mexico

Santa Teresita is a municipal wastewater treatment plant located in the town of Santa Teresita, within the municipality of Sinaloa, Sinaloa, Mexico. The plant serves a population of 913 and operates with secondary treatment, which is appropriate for small communities under Mexican water quality regulations (NOM-001-SEMARNAT). The plant has a designed capacity of 95.04 m³/day and currently treats an average discharge volume of 86.40 m³/day, indicating it operates below its design capacity. As a secondary treatment facility, it removes organic matter and suspended solids, meeting standard effluent requirements for inland discharge. The treated effluent is likely discharged into a local watercourse that drains into the Pacific Ocean via the Sinaloa River system. The region's semi-arid climate and agricultural activity make proper wastewater treatment essential for protecting downstream water quality and supporting local ecosystems.

The plant's treated effluent flows into the Sinaloa River basin, which ultimately drains into the Pacific Ocean near the Gulf of California. This coastal region supports diverse aquatic life and important fisheries. Secondary treatment helps reduce nutrient loading and organic pollution, protecting downstream water bodies from eutrophication and maintaining ecological balance in the watershed.