Campbellsville STP - Municipal Wastewater Treatment in Campbellsville, Kentucky

Campbellsville STP is a municipal wastewater treatment plant located on Animal Shelter Road in Campbellsville, Taylor County, Kentucky. The facility serves a population of about 15,550, placing it in the small-to-medium agglomeration category for U.S. plants. As part of Kentucky's wastewater infrastructure, it plays a key role in managing local sewage and protecting public health. Under the U.S. Clean Water Act, plants of this scale are typically required to provide secondary treatment through the National Pollutant Discharge Elimination System (NPDES) permit program. The regulatory framework ensures that effluent meets federal standards for biological oxygen demand and suspended solids before discharge. The plant discharges treated wastewater into a local waterway that ultimately drains into the Green River basin, a tributary of the Ohio River. The Ohio River flows into the Mississippi River, which empties into the Gulf of Mexico. This downstream connection highlights the plant's role in maintaining water quality across a large watershed that supports diverse aquatic life and regional ecosystems.

The plant's treated effluent enters a local stream within the Green River watershed, which flows into the Ohio River and then the Mississippi River before reaching the Gulf of Mexico. This extensive drainage system supports a variety of fish and wildlife, including several species of freshwater mussels and migratory birds. The Green River basin is ecologically significant, with areas of high biodiversity and sensitive aquatic habitats that depend on consistent water quality.