Overview
Nogales De Anza secondary treatment plant serves 8,817 people in Heroica Nogales, Sonora, Mexico. It discharges 834.62 thousand cubic meters annually into the local watershed.
Nogales De Anza is a municipal wastewater treatment plant located in Heroica Nogales, Sonora, Mexico, serving a population of approximately 8,817 residents. The plant provides secondary treatment, which is the standard biological process for removing organic matter and suspended solids from domestic wastewater. With a designed capacity of 1,296.00 thousand cubic meters per year and an annual discharge volume of 834.62 thousand cubic meters, the plant operates below its design capacity. As a Mexican facility, it falls under the national water quality regulations administered by CONAGUA (Comisión Nacional del Agua), which sets discharge standards for municipal wastewater. The treated effluent is released into the local drainage system, which ultimately flows into the Santa Cruz River watershed. This river is a tributary of the Gila River, part of the Colorado River basin, and supports riparian habitats in the arid Sonoran Desert region. The plant's operation helps protect downstream water quality and ecological health.
Environmental context
The plant discharges into the Santa Cruz River watershed, which flows north into Arizona and eventually joins the Gila River, a major tributary of the Colorado River. This arid region relies on limited water resources, and the treated effluent contributes to base flow in the river, supporting riparian vegetation and wildlife. Downstream, the Colorado River delta and the Gulf of California are ecologically sensitive areas that benefit from reduced pollutant loads.
Frequently asked questions
The plant is located at Avenida Plutarco Elías Calles in Heroica Nogales, Sonora, Mexico, near the US-Mexico border.
The plant serves approximately 8,817 residents of Heroica Nogales.
The treated effluent is discharged into the local drainage system, which flows into the Santa Cruz River watershed, a tributary of the Gila River and part of the Colorado River basin.
The plant provides secondary treatment, which uses biological processes to remove organic matter and suspended solids, meeting standard municipal wastewater treatment requirements.
The plant operates under Mexico's national water quality standards enforced by CONAGUA, which set discharge limits for BOD, TSS, and other parameters to protect receiving water bodies.
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