La Guasima Wastewater Treatment Plant, La Guásima, Nayarit, Mexico

La Guasima wastewater treatment plant is located in the town of La Guásima, within the municipality of Acaponeta, Nayarit, Mexico. The plant serves a population of approximately 1,643 people, making it a small-scale facility focused on local wastewater management in a rural or semi-urban setting. The plant provides secondary treatment, which is the standard biological treatment required under Mexican regulations (NOM-001-SEMARNAT-1996) for municipal wastewater. With a designed capacity of 241.92 cubic meters per day and a current discharge volume of 155.52 cubic meters per day, the facility operates below its full capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into the local watershed, which ultimately drains into the Pacific Ocean via the Acaponeta River system. The plant plays a key role in protecting downstream water quality and aquatic ecosystems in the region, particularly in an area where agriculture and fishing are important economic activities.

The plant discharges into the Acaponeta River basin, which flows westward through Nayarit and empties into the Pacific Ocean near the Marismas Nacionales, a large coastal wetland system. This region supports diverse aquatic life and migratory birds, making proper wastewater treatment essential to prevent nutrient pollution and protect downstream habitats.