Hymera WWTP - Advanced Wastewater Treatment in Sullivan County, Indiana

Hymera WWTP is a municipal wastewater treatment facility located in Sullivan County, Indiana, United States. It serves a small population of approximately 900 residents, reflecting its role in a rural community. The plant is situated inland, away from coastal areas, and operates under the regulatory framework of the US Clean Water Act. The facility employs advanced treatment processes, ensuring a high level of pollutant removal before discharge. With a designed capacity of 946.35 cubic meters per day and a similar discharge volume, the plant operates at full capacity. As a small-scale facility, it is subject to EPA NPDES permitting requirements, which set effluent limits to protect receiving waters. The treated wastewater is discharged into local waterways that ultimately drain into the Wabash River basin, a major tributary of the Ohio River. This contributes to the overall health of the Mississippi River watershed. The plant's advanced treatment helps maintain water quality in the region, supporting aquatic life and downstream ecosystems.

The plant discharges into local streams that flow into the Wabash River, a key tributary of the Ohio River, which eventually reaches the Mississippi River and the Gulf of Mexico. The Wabash River basin supports diverse aquatic habitats and is important for migratory fish species. Advanced treatment at Hymera WWTP helps reduce nutrient loading and protects downstream water quality in this ecologically significant watershed.