Overview
Los Arroyos wastewater treatment plant serves Hermosillo, Sonora, Mexico, with a population of approximately 52,000. It operates under Mexico's national water regulations, discharging into the local watershed.
Los Arroyos is a wastewater treatment plant located in Hermosillo, the capital city of Sonora, Mexico. It serves a population of about 52,171, placing it in the medium agglomeration category. The plant is situated inland, more than 50 km from the coast, and its operations are part of the municipal wastewater infrastructure for the city. As a Mexican wastewater facility, Los Arroyos is subject to the country's federal water laws, including the National Water Law (Ley de Aguas Nacionales) and regulations from the National Water Commission (CONAGUA). For a plant serving over 50,000 people, secondary treatment is typically required to meet discharge standards. Regulatory compliance ensures treated effluent meets quality criteria for its receiving environment. The plant discharges into the Sonora River basin, which flows through the arid Sonoran Desert. The river ultimately drains into the Gulf of California, an ecologically significant marine ecosystem. The region's dry climate means water resources are scarce, making effective wastewater treatment crucial for protecting downstream water quality and supporting local agriculture and biodiversity.
Environmental context
Los Arroyos plant discharges into the Sonora River basin, which flows through Hermosillo and eventually reaches the Gulf of California. This coastal marine environment supports diverse aquatic life, including fish and migratory birds. The arid Sonoran Desert climate makes water conservation and pollution control critical for maintaining the health of the river and downstream ecosystems.
Frequently asked questions
Los Arroyos is located in Hermosillo, Sonora, Mexico, at Retorno 104, Modelo, Hermosillo, Sonora, 83001.
The plant serves approximately 52,171 people in the Hermosillo area.
The plant discharges treated effluent into the Sonora River basin, which flows to the Gulf of California.
The plant operates under Mexico's National Water Law and is regulated by CONAGUA, which sets discharge standards for wastewater treatment plants.
In Mexico, plants serving over 50,000 people are typically required to provide secondary treatment to meet federal water quality standards.
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