Crothersville WWTP - Municipal Wastewater Treatment in Crothersville, Indiana

Crothersville WWTP is a municipal wastewater treatment facility located on South Bethany Road in Crothersville, Jackson County, Indiana. Serving a population of about 1,687 people, the plant is part of the town's essential infrastructure for managing domestic wastewater. As a small-scale facility in the United States, Crothersville WWTP is subject to the National Pollutant Discharge Elimination System (NPDES) permit program under the Clean Water Act. This regulatory framework requires treatment to meet water quality standards, typically involving secondary treatment for municipal plants of this size. The plant's design and operation align with state and federal guidelines to protect public health and the environment. The treated effluent from Crothersville WWTP is discharged into a local waterway that flows into the Muscatatuck River, a tributary of the East Fork White River, which ultimately drains into the Mississippi River and the Gulf of Mexico. The plant plays a key role in preserving water quality in the Muscatatuck River watershed, supporting aquatic life and downstream ecosystems.

The plant discharges into a tributary of the Muscatatuck River, part of the East Fork White River basin. This watershed supports diverse aquatic habitats and is important for regional biodiversity. Downstream, the waters flow into the Mississippi River system, eventually reaching the Gulf of Mexico, where nutrient management is critical to prevent hypoxic zones.