New Orleans W Bank STP - Major Wastewater Treatment Plant in New Orleans, Louisiana

The New Orleans W Bank STP is a major wastewater treatment facility serving the west bank of New Orleans, Louisiana. With a population served of around 185,672, it is classified as a large agglomeration under US regulatory standards. The plant is situated in the Mid-City area of New Orleans, within Orleans Parish. As a US facility of this scale, the plant operates under the Clean Water Act and is required to have an EPA NPDES permit issued by the Louisiana Department of Environmental Quality. Plants of this size typically employ secondary or advanced treatment to meet effluent standards. The designed capacity is reported as 1.00 (likely in million gallons per day), indicating a substantial infrastructure footprint. The plant discharges treated wastewater into the Mississippi River system, which flows into the Gulf of Mexico. This discharge is subject to strict nutrient and pollutant limits to protect downstream aquatic ecosystems. The Mississippi River basin is one of the largest in North America, supporting diverse wildlife and commercial fisheries. The plant's location within 50 km of the coast means its effluent ultimately reaches coastal waters, where nutrient loading can contribute to hypoxic zones.

The plant discharges into the Mississippi River, which drains into the Gulf of Mexico. The Mississippi River basin supports a vast array of aquatic life and is a critical migratory corridor for birds and fish. Downstream, the Gulf of Mexico is ecologically sensitive, with seasonal hypoxic zones influenced by nutrient inputs from the river. The plant's discharge must comply with limits to minimize impacts on this important coastal ecosystem.