Gallia Co Tara Subdivision Wastewater Treatment Plant, Mount Zion Subdivision, Ohio

Gallia Co Tara Subdivision is a wastewater treatment facility located in Mount Zion Subdivision, within Green Township, Gallia County, Ohio. The plant serves a small population of 250 residents, reflecting its role in a rural residential community. As a secondary treatment plant, it provides biological treatment to reduce organic matter and suspended solids before discharge. The plant operates under the U.S. Clean Water Act, which requires National Pollutant Discharge Elimination System (NPDES) permits for all discharges. For small secondary plants like this, typical permit limits include biochemical oxygen demand (BOD), total suspended solids (TSS), and pH. The facility's designed capacity of 189.27 cubic meters per day and current discharge volume of 75.71 cubic meters per day indicate it is operating well below capacity. The treated effluent is discharged into local waterways that drain into the Ohio River basin. The Ohio River is a major tributary of the Mississippi River, ultimately flowing into the Gulf of Mexico. The plant's location in a rural, inland setting means its discharge contributes to the health of small streams and creeks that support local aquatic life and downstream ecosystems.

The plant discharges into small streams within the Ohio River watershed, which flows into the Mississippi River and eventually the Gulf of Mexico. These headwater streams are ecologically sensitive, supporting diverse aquatic macroinvertebrates and fish species. The rural setting means the plant's discharge is a key factor in maintaining water quality for downstream communities and habitats.