Cerro Azul Wastewater Treatment Plant - Coastal Facility in Lima, Peru

Cerro Azul wastewater treatment plant is located in the coastal town of Cerro Azul, within the Cañete province of the Lima region in Peru. The plant serves a population of approximately 5,110 residents, providing secondary treatment for municipal wastewater. As a coastal facility, it plays a key role in managing local sanitation and protecting the marine environment. The plant operates with secondary treatment, which is the standard biological treatment process that removes organic matter and suspended solids. In Peru, wastewater treatment plants are regulated under national environmental standards, and facilities of this scale typically follow guidelines set by the Ministry of Housing, Construction and Sanitation. The plant's discharge volume of 587.52 cubic meters per day reflects its capacity to handle the community's wastewater. The treated effluent from Cerro Azul plant is discharged into the Pacific Ocean, as the facility is located within 10 kilometers of the coast. This coastal discharge requires careful management to minimize impacts on marine ecosystems, including local fisheries and biodiversity. The plant contributes to protecting the coastal waters of the Lima region, which support diverse aquatic life and are important for tourism and recreation.

The Cerro Azul plant discharges treated wastewater into the Pacific Ocean along the central coast of Peru. This coastal area is part of the Humboldt Current Large Marine Ecosystem, known for its high productivity and biodiversity, including important fisheries. The plant's secondary treatment helps reduce organic pollution and protect marine habitats, though coastal discharges require ongoing monitoring to safeguard water quality and ecosystem health.