NATCO-CONWAY Stormwater Outfall, Conway, Arkansas | United States

NATCO-CONWAY is a stormwater outfall located at 2635 Blaney Hill Rd in Conway, Arkansas, within Faulkner County. As a stormwater outfall, it discharges collected stormwater runoff from the surrounding urban and suburban catchment into local waterways. The facility is operational and falls under the regulatory framework of the US Clean Water Act, specifically the NPDES MS4 permit program, which governs stormwater discharges from municipal separate storm sewer systems. In Arkansas, stormwater management is overseen by the Arkansas Department of Energy and Environment - Division of Environmental Quality (DEQ), which implements the EPA's Phase II MS4 program for small municipalities like Conway. The outfall likely serves a drainage area that includes residential, commercial, and transportation land uses typical of a growing city in the southeastern United States. Stormwater outfalls in this region often manage runoff from frequent rainfall events, with peak flows influenced by seasonal thunderstorms. The environmental significance of NATCO-CONWAY lies in its role in conveying stormwater to receiving waters, which may include streams or rivers in the Arkansas River basin. Proper operation helps reduce localized flooding and erosion, while also controlling the discharge of pollutants such as sediment, nutrients, and urban contaminants. The facility's compliance with NPDES permit conditions is critical for protecting water quality in downstream water bodies.

Conway, Arkansas, experiences a humid subtropical climate with significant seasonal rainfall, leading to substantial stormwater runoff. The outfall discharges into local waterways that are part of the Arkansas River watershed, which supports diverse aquatic habitats. Urban runoff from Conway's growing population can carry pollutants like sediment, fertilizers, and hydrocarbons, making stormwater management essential for maintaining water quality in receiving streams. Regulatory oversight under the EPA's NPDES MS4 program requires the city to implement best management practices (BMPs) to reduce pollutant loads.