V Carranza Santa Rita Wastewater Treatment Plant, Venustiano Carranza, Colima

V Carranza Santa Rita is a municipal wastewater treatment plant located in Venustiano Carranza (Cualata), within the municipality of Manzanillo, Colima, Mexico. The plant serves a small community of 1,369 residents, providing secondary treatment to manage local domestic wastewater. As a coastal facility within 10 km of the Pacific Ocean, it plays a key role in protecting nearby marine and coastal ecosystems. The plant operates under Mexico's national water regulations, which require secondary treatment for discharges into coastal waters. With a designed capacity of 518.40 cubic meters per day and a current discharge volume of 129.60 cubic meters per day, the facility operates well below its capacity, indicating room for future growth. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids before discharge. The treated effluent is released into local drainage that flows to the Pacific Ocean, contributing to the health of coastal waters in the Manzanillo region. This area supports diverse marine life and is important for local fisheries and tourism. Proper treatment helps minimize nutrient loading and protects water quality in the sensitive coastal environment.

The plant discharges into local waterways that drain into the Pacific Ocean near Manzanillo, Colima. This coastal region supports diverse marine ecosystems, including mangrove lagoons and estuaries that serve as nurseries for fish and crustaceans. The area is also important for migratory birds and local fisheries. Secondary treatment reduces organic pollutants and suspended solids, helping to maintain water quality in the nearshore environment and prevent eutrophication.