OUACHITA RAILROAD, INC Stormwater Outfall, El Dorado, Arkansas | US Stormwater Facility

OUACHITA RAILROAD, INC is a stormwater outfall located at 730 S Washington, El Dorado, Arkansas, within Union County. The facility is operational and serves as a point of discharge for stormwater runoff from railroad transportation and support activities, classified under NAICS codes 482112 and 488210. As a stormwater outfall, it is part of the broader municipal separate storm sewer system (MS4) framework regulated under the Clean Water Act. The facility operates under the US EPA NPDES MS4 permit program, which requires stormwater discharges to be managed to protect water quality. While specific discharge volumes are not detailed, the outfall likely handles runoff from industrial and transportation-related impervious surfaces typical of railroad yards. Regulatory compliance involves implementing best management practices (BMPs) to control pollutants such as sediment, oil, and grease. Located in El Dorado, a city in southern Arkansas, the outfall discharges into local waterways that may drain to the Ouachita River basin. Effective stormwater management at this facility helps mitigate flooding risks and reduces pollutant loads to receiving waters, supporting regional water quality goals and community resilience.

The facility is situated in Union County, Arkansas, within the Ouachita River basin, a region characterized by forested watersheds and agricultural land use. Stormwater runoff from railroad operations can carry pollutants like heavy metals, hydrocarbons, and sediment, which may impact local streams and rivers. Regulatory oversight under the EPA NPDES MS4 program requires the facility to implement stormwater pollution prevention plans (SWPPPs) to minimize environmental harm. The outfall's discharge may affect water quality in downstream water bodies, making proper management essential for protecting aquatic ecosystems and drinking water sources.