ETNA GREEN STP - Advanced Wastewater Treatment in Kosciusko County, Indiana

ETNA GREEN STP is a municipal wastewater treatment facility located in Kosciusko County, Indiana, United States. The plant serves a small population of 663 residents, providing essential sanitation services for the local community. Its advanced treatment level ensures high-quality effluent before discharge. The plant has a designed capacity of 264.98 thousand cubic meters per year and discharges a similar volume annually. As an advanced treatment facility, it likely incorporates nutrient removal or other tertiary processes to meet stringent water quality standards. Under the US Clean Water Act, such plants operate under National Pollutant Discharge Elimination System (NPDES) permits issued by the Indiana Department of Environmental Management, which set limits on pollutants to protect receiving waters. The treated effluent is discharged into local waterways that ultimately drain into the Mississippi River basin. The plant's inland location, far from coastal areas, reduces direct marine impact. Its advanced treatment helps protect downstream aquatic ecosystems and supports water quality in the region's rivers and lakes.

The plant discharges into local streams that are part of the Mississippi River watershed, which flows into the Gulf of Mexico. The region's aquatic habitats support diverse fish and invertebrate populations. Advanced treatment helps minimize nutrient loading, reducing the risk of eutrophication in downstream water bodies.