Mallaritos Wastewater Treatment Plant, Marcavelica, Piura, Peru

Mallaritos is a wastewater treatment plant located in the Garabato area of Marcavelica, in the Sullana province of Piura, Peru. It serves a population of approximately 52,414 people, placing it in the medium agglomeration category for the region. Peru's wastewater treatment sector is governed by the Ministry of Housing, Construction and Sanitation and the National Water Authority (ANA). Plants of this scale are typically expected to provide at least secondary treatment to meet effluent standards for discharge into surface waters. The regulatory framework emphasizes protection of water resources and public health, with oversight from the Superintendencia Nacional de Servicios de Saneamiento (SUNASS). The plant's treated effluent likely discharges into a local watercourse that drains into the Chira River basin, which flows westward to the Pacific Ocean. This watershed supports agricultural activities and provides water for communities in the Piura region. Proper treatment is essential to prevent contamination of downstream ecosystems and to safeguard water quality for irrigation and domestic use.

The plant is located inland, more than 50 km from the Pacific coast, in the Chira River basin. The Chira River flows through the Piura region and empties into the Pacific Ocean near the border with Ecuador. This watershed supports diverse aquatic life and is important for local agriculture and fisheries. Effective wastewater treatment helps protect the river's ecological health and the livelihoods of downstream communities.