SANTEE WWTP, Calhoun County, South Carolina - Wastewater Treatment Plant

SANTEE WWTP is a municipal wastewater treatment facility located in Calhoun County, South Carolina, United States. The plant serves a population of approximately 6,730 residents, classifying it as a small to medium agglomeration under US regulatory frameworks. As a US facility, SANTEE WWTP operates under the National Pollutant Discharge Elimination System (NPDES) permit program, established by the Clean Water Act. For plants of this scale, secondary treatment is typically required, and permits set specific effluent limits to protect water quality. Regulatory compliance ensures appropriate treatment for the population served. The plant discharges treated wastewater to local receiving waters, which ultimately drain into the Santee River basin and then to the Atlantic Ocean. The Santee River system supports diverse aquatic life and provides important habitat for fish and wildlife. The plant's location inland, over 50 km from the coast, reduces direct marine impact, but its discharge contributes to the overall health of the watershed.

The SANTEE WWTP discharges into local waterways that are part of the Santee River basin, one of the largest river systems on the East Coast of the United States. The Santee River flows into Lake Marion and then to the Atlantic Ocean via the Santee Delta. This watershed supports diverse aquatic ecosystems, including important fish spawning grounds and migratory bird habitats. The plant's effluent must meet NPDES permit limits to protect these downstream environments.