Overview
El Huajote wastewater treatment plant serves 1,643 people in Sinaloa, Mexico, with secondary treatment. It discharges 155.52 m³/day and is located within 10 km of the Pacific coast.
El Huajote is a municipal wastewater treatment plant located in the town of El Huajote, within the municipality of Concordia, Sinaloa, Mexico. The plant serves a population of approximately 1,643 residents, placing it in the small-agglomeration category for Mexican wastewater infrastructure. The facility provides secondary treatment, which is the minimum standard required under Mexican regulations (NOM-001-SEMARNAT-1996) for discharge into coastal waters. The plant has a designed capacity of 164.16 m³/day and currently treats 155.52 m³/day, operating near its design capacity. As a coastal plant, it must meet stringent limits for biochemical oxygen demand and total suspended solids to protect marine ecosystems. The treated effluent is discharged into the Pacific Ocean via local drainage, likely through the Presidio River basin or nearby arroyos. The coastal waters off Sinaloa support diverse marine life, including important fisheries and migratory species. The plant's secondary treatment helps reduce nutrient loading and organic pollution in this sensitive coastal environment.
Environmental context
The plant discharges into the Pacific Ocean near the coast of Sinaloa, within the Gulf of California ecoregion. This area supports mangroves, estuaries, and important fisheries such as shrimp and sardine. The receiving waters are part of a dynamic coastal system influenced by seasonal rainfall and agricultural runoff. Secondary treatment reduces organic matter and pathogens, helping to maintain water quality for aquatic life and local communities.
Frequently asked questions
El Huajote WWTP is located in the town of El Huajote, within the municipality of Concordia, Sinaloa, Mexico. The full address is El Ranchito, El Huajote, Concordia, Sinaloa.
The plant serves approximately 1,643 people, classifying it as a small agglomeration under Mexican wastewater regulations.
The plant discharges treated effluent into the Pacific Ocean via local drainage systems. It is located within 10 km of the coast, so the discharge directly affects coastal marine waters.
El Huajote provides secondary treatment, which is the standard required by Mexican regulations (NOM-001-SEMARNAT-1996) for discharges into coastal waters. This typically involves biological processes to reduce organic matter and suspended solids.
The plant operates under Mexican federal regulations, primarily NOM-001-SEMARNAT-1996, which sets maximum permissible limits for pollutants in wastewater discharges. As a coastal plant, it must comply with strict limits to protect marine ecosystems.
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