Overview
Puente Piedra wastewater treatment plant serves the San Martín de Porres district in Lima, Peru, with a population equivalent of 442,374. The plant is located within 50 km of the Pacific coast.
Puente Piedra is a wastewater treatment plant serving the San Martín de Porres district in the Lima metropolitan area, Peru. With a population served of 442,374, it is classified as a large agglomeration under Peruvian regulations, which align with international standards for urban wastewater treatment. As a large-scale plant, Puente Piedra is expected to provide at least secondary treatment to meet environmental standards. The plant has a designed capacity of 1. Indicating its infrastructure is sized for significant flow. The plant operates within Peru's national wastewater regulatory framework, which mandates treatment for large urban centers. The plant's discharge ultimately reaches the Pacific Ocean via the local drainage network. The Lima coastal area is ecologically sensitive, supporting marine biodiversity and fisheries. Proper treatment is critical to prevent nutrient loading and contamination of coastal waters, which are important for both local communities and regional marine ecosystems.
Environmental context
The plant is located in the Lima metropolitan area, within 50 km of the Pacific coast. Treated wastewater likely discharges into the Chillón River or directly into the Pacific Ocean via coastal outfalls. The receiving waters support diverse marine life and are important for local fisheries. The region's arid climate means limited dilution capacity in receiving waters, making effective treatment essential to protect coastal water quality and ecosystem health.
Frequently asked questions
Puente Piedra is located in the San Martín de Porres district, within the Lima metropolitan area, Peru. Its approximate coordinates are 11.953°S, 77.102°W.
The plant serves a population equivalent of 442,374, classifying it as a large agglomeration under Peruvian and international standards.
The plant likely discharges treated effluent into the Chillón River or directly into the Pacific Ocean via coastal outfalls, given its proximity to the coast (within 50 km).
The plant operates under Peru's national wastewater regulations, which set discharge standards for large urban agglomerations. These standards align with international best practices for secondary treatment and environmental protection.
For a plant of this scale in Peru, secondary treatment is typically required to reduce organic matter and suspended solids. Advanced treatment may be needed if discharge is to sensitive coastal waters.
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