Gunpowder Creek WWTP - Hudson, North Carolina Wastewater Treatment Plant

Gunpowder Creek WWTP is a municipal wastewater treatment facility located at 2 Freshfield Drive in Hudson, Caldwell County, North Carolina. The plant serves a population of about 11,681 people, placing it in the small-to-medium agglomeration category for US inland communities. As a US facility, the plant operates under the National Pollutant Discharge Elimination System (NPDES) permit program established by the Clean Water Act. For communities of this scale in North Carolina, secondary treatment is typically required, with additional nutrient removal standards applicable to facilities discharging to nutrient-sensitive watersheds in the state. The plant's treated effluent discharges into the local watershed, which drains into the Catawba River basin. This river system flows through the Piedmont region of North Carolina and South Carolina, ultimately reaching the Atlantic Ocean via the Santee River system. The receiving waters support diverse aquatic life and are used for recreation and drinking water supply downstream.

The plant discharges into the Catawba River basin, a major waterway in the Piedmont region that flows through North Carolina into South Carolina. The Catawba River supports a variety of fish species and provides drinking water for multiple communities. Downstream, the river feeds Lake Wateree and eventually joins the Santee River, which empties into the Atlantic Ocean. The watershed is ecologically sensitive due to nutrient loading concerns from agricultural and urban runoff, making effective wastewater treatment important for maintaining water quality.