Duranguito Wastewater Treatment Plant, Sinaloa, Mexico

Duranguito is a wastewater treatment plant located in the town of Duranguito, within the municipality of San Ignacio, Sinaloa, Mexico. The plant serves a small population of 114 people, reflecting its role in a rural or peri-urban community. It operates with secondary treatment, which is a standard biological process that removes organic matter and suspended solids. The plant's designed capacity is 302.40 m³/day, with an actual discharge volume of 224.64 m³/day, indicating it is operating below its full capacity. Under Mexican regulations (NOM-001-SEMARNAT-1996 and subsequent updates), secondary treatment is required for discharges to national waters, and the plant's performance aligns with these standards. For small communities, such treatment levels are typical and adequate for protecting local water quality. The plant is located within 10 km of the coast, meaning its treated effluent likely discharges into a river or stream that flows into the Pacific Ocean. This proximity to marine waters underscores the importance of effective treatment to prevent nutrient loading and protect coastal ecosystems. The plant contributes to safeguarding the health of downstream water bodies and the marine environment.

The plant's treated effluent likely enters a local watercourse that drains into the Pacific Ocean near the coast of Sinaloa. This coastal region supports diverse marine life, including fisheries and mangrove ecosystems. Effective secondary treatment helps reduce organic pollution and nutrient inputs, which is critical for preventing eutrophication and maintaining water quality in nearshore habitats.