Big Buffalo Sanford WWTP - Sanford, North Carolina Wastewater Treatment

Big Buffalo Sanford WWTP is a municipal wastewater treatment facility located in Sanford, Lee County, North Carolina. The plant serves a population of approximately 42,000 residents, placing it in the medium-agglomeration category for US wastewater infrastructure. As a US-based facility, the plant operates under the Clean Water Act and is regulated through the National Pollutant Discharge Elimination System (NPDES) permit program. For plants serving populations of this scale, secondary treatment is typically required, with additional nutrient removal standards applicable in sensitive watersheds such as the Cape Fear River basin. The plant discharges treated effluent into local waterways that ultimately drain into the Cape Fear River, which flows southeast through North Carolina to the Atlantic Ocean. The Cape Fear River basin supports diverse aquatic life and provides drinking water for downstream communities, making treatment quality important for regional water quality.

The plant's discharge enters the Cape Fear River basin, a major watershed in North Carolina that drains to the Atlantic Ocean near Wilmington. The river supports diverse fish populations and is a critical drinking water source for downstream communities. Nutrient loading from wastewater can contribute to algal blooms in the river and estuary, so effective treatment is essential for maintaining ecological balance.