Richland Co Lower Richland Area Wastewater Treatment Plant, Columbia, South Carolina

Richland Co Lower Richland Area is a planned wastewater treatment facility located in Columbia, South Carolina, within Richland County. Designed to serve a small population of 157 residents, the plant is currently in the projected stage and will provide secondary treatment for municipal wastewater. As a secondary treatment plant, it will meet the US Clean Water Act's minimum requirement for publicly owned treatment works, which mandates removal of at least 85% of biochemical oxygen demand and suspended solids. Although specific capacity and discharge data are not yet available, the plant's scale aligns with small community systems common in the southeastern United States. The plant's discharge will ultimately enter the Congaree River watershed, which flows into the Santee River and then to the Atlantic Ocean. The Lower Richland area includes ecologically sensitive floodplains and wetlands that support diverse aquatic life, making proper treatment essential for protecting downstream water quality.

The plant will discharge into the Congaree River basin, part of the larger Santee River system that drains to the Atlantic Ocean. The Lower Richland area contains extensive floodplain forests and wetlands that provide critical habitat for fish, birds, and other wildlife. Secondary treatment helps reduce nutrient and pollutant loads to these sensitive ecosystems.