Centerton Asphalt Plant Stormwater Outfall, Centerton, Arkansas | United States

Centerton Asphalt Plant is a stormwater outfall facility located at 2211 W. Centerton in Centerton, Arkansas, within Benton County. The facility operates in the United States under the jurisdiction of the EPA's National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) program, which regulates stormwater discharges from industrial sites like asphalt plants. As an industrial stormwater outfall, the facility handles runoff from asphalt production activities, classified under NAICS code 324121. The site is subject to stormwater pollution prevention plans (SWPPPs) and may require monitoring for pollutants such as total suspended solids, oil and grease, and heavy metals. The regulatory framework includes both Phase I and Phase II MS4 permits, depending on the municipality's size. The facility's environmental significance lies in its role in managing stormwater runoff from an industrial catchment, which can impact local water quality. Proper operation helps prevent discharge of pollutants into nearby water bodies, supporting compliance with the Clean Water Act and protecting aquatic ecosystems in the region.

The facility is located in Benton County, Arkansas, an area with a mix of urban and industrial development. Stormwater runoff from asphalt plants can contain pollutants like sediment, hydrocarbons, and heavy metals, which may affect local streams and groundwater. The region's climate, with periodic heavy rainfall, increases the risk of runoff events. Regulatory oversight under the EPA's NPDES MS4 program aims to minimize these impacts through best management practices and monitoring.