Chiapa Wastewater Treatment Plant, Colima, Mexico

Chiapa wastewater treatment plant is located in the town of Chiapa, within the municipality of Cuauhtémoc, Colima, Mexico. The facility serves a population of 581 and is part of the local municipal wastewater infrastructure. The plant provides secondary treatment, which is the standard level required under Mexican regulations (NOM-001-SEMARNAT-1996) for municipal wastewater before discharge. With a designed capacity of 345.60 m³/day and an actual discharge volume of 216.00 m³/day, the plant operates below its full capacity. The treated effluent is discharged into the local watershed, which ultimately drains into the Pacific Ocean via the Armería River basin. The plant plays a key role in protecting downstream water quality and aquatic ecosystems in the region.

The plant discharges into the Armería River basin, which flows through Colima state and empties into the Pacific Ocean. This watershed supports diverse aquatic life and is ecologically sensitive, particularly near the coastal lagoon systems. Proper treatment helps reduce nutrient and pathogen loads, safeguarding both freshwater and marine environments.