PARKER COLLECTION SYSTEM Wastewater Treatment Plant, Riverside, South Carolina

PARKER COLLECTION SYSTEM is a municipal wastewater treatment facility located in Riverside, Greenville County, South Carolina. The plant serves an estimated population of 57,000, placing it in the medium-to-large agglomeration category for US wastewater infrastructure. The plant employs advanced treatment processes, which exceed the secondary treatment standard required by the US Clean Water Act. Advanced treatment typically includes nutrient removal or other tertiary steps to reduce pollutants beyond conventional levels. As a facility of this scale, it operates under a National Pollutant Discharge Elimination System (NPDES) permit issued by the South Carolina Department of Health and Environmental Control, ensuring compliance with effluent limits. The treated effluent from the plant is discharged into the local watershed, which ultimately drains into the Saluda River and then into Lake Greenwood, part of the larger Santee River basin. This water body supports diverse aquatic life and provides recreational and drinking water resources for the region. The plant's advanced treatment helps protect downstream water quality in this ecologically sensitive area.

The plant discharges into the Saluda River watershed, which flows into Lake Greenwood and eventually the Santee River, a major river system in South Carolina that empties into the Atlantic Ocean. The downstream environment supports diverse fish populations and provides habitat for migratory birds. Advanced treatment at this plant helps reduce nutrient loading, which is critical for preventing algal blooms in Lake Greenwood and maintaining water quality for downstream communities and ecosystems.