CONWAY PLANT 601 (SMYRNA READY MIX CONCRETE) Stormwater Outfall, Conway, Arkansas

CONWAY PLANT 601 (SMYRNA READY MIX CONCRETE) is a stormwater outfall located at 350 South Amity Road in Conway, Faulkner County, Arkansas. This facility manages stormwater runoff from a ready-mix concrete operation, classified under NAICS 327320. As a stormwater outfall, it discharges collected stormwater into local waterways, subject to federal and state regulations. The facility operates under the US EPA National Pollutant Discharge Elimination System (NPDES) program, which governs stormwater discharges from industrial activities. In Arkansas, the Department of Energy and Environment administers the NPDES permit program. The site is classified as an industrial stormwater outfall, requiring compliance with effluent limitations and best management practices to control pollutants in runoff. Stormwater management at this facility is critical for protecting water quality in the Arkansas River basin. The concrete industry generates alkaline runoff and sediment, which must be controlled to prevent impairment of receiving waters. Proper operation of the outfall helps mitigate environmental impacts and supports community water resource goals.

The facility is located in Conway, Arkansas, within the Arkansas River watershed. The region experiences a humid subtropical climate with significant seasonal rainfall, increasing the potential for stormwater runoff. Industrial sites like concrete plants can contribute pollutants such as sediment, pH-altering substances, and heavy metals to local waterways. Regulatory oversight under the Clean Water Act and state NPDES permits aims to minimize these impacts and protect aquatic ecosystems.