Overview
Pirámides wastewater treatment plant in San Francisco, Querétaro, Mexico, serves 7,822 people with secondary treatment and a designed capacity of 1,555.20 volume units.
Pirámides is a wastewater treatment plant located in San Francisco, within the municipality of Corregidora, Querétaro, Mexico. The plant serves a population of approximately 7,822 people, placing it in the small-to-medium agglomeration category. It operates with secondary treatment, which is the standard level required for municipal wastewater under Mexican regulations (NOM-001-SEMARNAT). The plant has a designed capacity of 1,555.20 volume units and a reported discharge volume of 740.45 volume units, indicating it is operating below its full capacity. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids. It is expected to comply with federal discharge standards. The treated effluent is discharged into the local watershed, which ultimately drains into the Lerma-Santiago-Pacifico basin, one of Mexico's major hydrological systems. This basin supports diverse aquatic life and provides water for agricultural and urban uses downstream. The plant plays a key role in protecting water quality in the region, particularly as Querétaro experiences rapid urban growth.
Environmental context
The plant discharges into the Lerma-Santiago-Pacifico basin, which flows through central Mexico before reaching the Pacific Ocean. This watershed supports important ecosystems, including wetlands and riparian habitats that provide migratory corridors for birds and sustain native fish species. The region's semi-arid climate makes water quality management critical for both ecological health and human use.
Frequently asked questions
Pirámides is located in San Francisco, within the municipality of Corregidora, Querétaro, Mexico. The full address is Calle San Felipe Nery, Velasur, Vistalago, San Francisco, Corregidora, Querétaro, 76922.
The plant serves a population of 7,822 people, classifying it as a small-to-medium agglomeration under Mexican wastewater regulations.
The treated effluent is discharged into the local watershed, which is part of the Lerma-Santiago-Pacifico basin. The plant uses secondary treatment to reduce pollutants before discharge.
The plant helps protect water quality in the Lerma-Santiago-Pacifico basin, a major hydrological system that flows through central Mexico and supports downstream ecosystems and water users.
The plant operates under Mexican standard NOM-001-SEMARNAT, which sets discharge limits for municipal wastewater. Secondary treatment is the minimum requirement for plants of this scale, ensuring compliance with federal water quality standards.
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