Gnaw Bone RSD Wastewater Treatment Plant, Indiana

Gnaw Bone RSD is a municipal wastewater treatment facility located in Gnaw Bone, Brown County, Indiana, United States. The plant serves a small community of 41 residents, reflecting its role in rural wastewater management. The plant provides secondary treatment, a standard biological process that removes organic matter and suspended solids. With a designed capacity of 94.64 cubic meters per day, it operates at full capacity based on reported discharge volume. As a US facility, it falls under the Clean Water Act's National Pollutant Discharge Elimination System (NPDES) permitting program, which regulates discharges to surface waters. The treated effluent is discharged into local waterways within the Ohio River basin. The plant's operations help protect downstream water quality in the region, supporting aquatic life and recreational uses in the broader Mississippi River watershed.

The plant discharges into small streams that flow into the Ohio River basin, ultimately reaching the Mississippi River and the Gulf of Mexico. The local watershed supports diverse aquatic habitats and is part of a larger ecological network. Protecting water quality in this rural area helps maintain the health of downstream ecosystems, including fish populations and migratory bird corridors.