Overview
La Grange WWTP is a secondary treatment facility serving 931 residents in La Grange, Missouri. It discharges treated wastewater into the local watershed, ultimately contributing to the Mississippi River basin.
La Grange WWTP is a municipal wastewater treatment plant located in La Grange, Lewis County, Missouri. It serves a small community of 931 people, providing secondary treatment to meet state and federal water quality standards. The plant operates under the regulatory framework of the U.S. Clean Water Act, which requires NPDES permits for discharges to surface waters. The plant has a designed capacity of 1,135.62 cubic meters per day and currently treats an average daily flow of 378.54 cubic meters, indicating ample capacity for future growth. As a secondary treatment facility, it utilizes biological processes to reduce organic matter and suspended solids before discharge. The plant's performance is monitored to ensure compliance with permit limits. The treated effluent is discharged to a local waterway that flows into the Mississippi River basin. This region supports diverse aquatic life and is an important migratory corridor for birds. The plant plays a key role in protecting downstream water quality and the ecological health of the Mississippi River system.
Environmental context
The plant discharges into a tributary of the Mississippi River, which flows south to the Gulf of Mexico. The Mississippi River basin is one of the largest in North America, supporting a wide range of aquatic species and providing habitat for migratory waterfowl. The plant's secondary treatment helps reduce nutrient loading, which is critical for preventing hypoxia in the Gulf of Mexico.
Frequently asked questions
La Grange WWTP is located on South Main Street in La Grange, Lewis County, Missouri, United States.
The plant serves a population of 931 residents in the La Grange area.
La Grange WWTP provides secondary treatment, which uses biological processes to remove organic matter and suspended solids from wastewater.
The plant operates under the U.S. Clean Water Act, which requires NPDES permits for discharges to surface waters. Secondary treatment is the minimum standard for municipal plants.
For small communities, secondary treatment is standard, often using lagoons or activated sludge. Plants must comply with state and federal effluent limits to protect receiving waters.
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