Los Cedros Wastewater Treatment Plant, Manzanillo, Colima, Mexico

Los Cedros is a municipal wastewater treatment plant located in the community of Los Cedros, within the municipality of Manzanillo, Colima, Mexico. The plant serves a population of approximately 1,095 people, making it a small-scale facility in the region. The plant provides secondary treatment, which is the standard level required for municipal wastewater in Mexico under the national water law (Ley de Aguas Nacionales). With a designed capacity of 233.28 thousand m³/year and an actual discharge volume of 103.68 thousand m³/year, the plant operates below its full capacity, indicating room for future growth or variable inflow. The treated effluent is discharged into the local environment, contributing to the protection of water resources in the Colima coastal region. The plant plays a role in safeguarding downstream water bodies, including rivers that flow into the Pacific Ocean, supporting both human use and aquatic ecosystems.

The plant is located inland in the state of Colima, within the Pacific coastal watershed. Treated wastewater likely drains into local streams that feed into the Armería River or other rivers flowing into the Pacific Ocean. This region supports diverse aquatic life and is important for local agriculture and fisheries. Proper treatment helps maintain water quality in the coastal zone.