LSB CHEMICAL LLC Stormwater Outfall, El Dorado, Arkansas | Industrial Stormwater Management

LSB CHEMICAL LLC is a stormwater outfall located at 4500 North West Avenue in El Dorado, Union County, Arkansas. The facility manages stormwater runoff from industrial operations classified under NAICS codes 237120 (oil and gas pipeline construction), 325188 (all other basic inorganic chemical manufacturing), and 325311 (nitrogenous fertilizer manufacturing). As an operational outfall, it discharges treated stormwater into local waterways, subject to Clean Water Act requirements. The facility operates under the US EPA's National Pollutant Discharge Elimination System (NPDES) permitting framework, which governs stormwater discharges from industrial activities. In Arkansas, the Department of Energy and Environment administers these permits, requiring compliance with effluent limits and best management practices to minimize pollutant runoff. The outfall likely serves a large industrial catchment, given the chemical manufacturing operations on site. Stormwater management at industrial facilities like LSB CHEMICAL LLC is critical for protecting water quality in the Ouachita River basin, which receives runoff from the El Dorado area. Proper treatment reduces the load of sediments, chemicals, and other pollutants that could impair aquatic ecosystems. The facility's compliance with its NPDES permit helps maintain the ecological health of downstream water bodies and supports community water resources.

The outfall discharges into the Ouachita River watershed, which supports diverse aquatic life and provides drinking water for downstream communities. Industrial stormwater runoff from chemical manufacturing can contain pollutants such as nitrogen compounds, heavy metals, and suspended solids. Effective management is essential to prevent impairment of water quality and to meet state water quality standards under the Clean Water Act.