La Mora Wastewater Treatment Plant, Sonora, Mexico

La Mora is a wastewater treatment plant located in the small community of La Mora, within the municipality of Banámichi, Sonora, Mexico. The plant serves a population of 511 residents, reflecting its role in a rural setting. It operates under Mexico's national water regulations, which require secondary treatment for municipal wastewater to protect public health and the environment. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. It has a designed capacity of 44.93 m³/day and currently discharges 48.38 m³/day, indicating operation near or slightly above its design capacity. As a small facility, it is subject to oversight by Mexico's National Water Commission (CONAGUA), which issues discharge permits and enforces water quality standards. The treated effluent is discharged into the local watershed, which ultimately drains into the Sonora River basin. This river system flows through the arid Sonoran landscape and supports limited aquatic life and agricultural activities. Proper treatment is essential to prevent contamination of groundwater and surface water in this water-scarce region.

The plant discharges into the Sonora River basin, a semi-arid watershed in northwestern Mexico. The river flows southward through Sonora state, eventually reaching the Gulf of California. The region's aquatic ecosystems are adapted to seasonal flows and support species such as the Sonora chub and various migratory birds. Effective wastewater treatment is critical to maintain water quality for downstream agricultural use and to protect the fragile desert riparian habitat.