Gravel Mountain Quarry Stormwater Outfall, Bismarck, Arkansas | United States

Gravel Mountain Quarry is a stormwater outfall located at 2633 HWY 347 in Bismarck, Arkansas, within Hot Spring County. The facility is operational and manages stormwater runoff from quarry activities, classified under NAICS codes 212311, 212312, and 212319 for dimension stone and crushed stone mining. As a stormwater outfall, it plays a key role in controlling discharge from industrial sites in the region. The facility operates under the regulatory framework of the US Clean Water Act, specifically the National Pollutant Discharge Elimination System (NPDES) for stormwater discharges associated with industrial activity. In Arkansas, the Department of Energy and Environment - Division of Environmental Quality oversees permitting and compliance. The quarry's stormwater management likely includes best management practices such as sediment basins and erosion controls to mitigate runoff impacts. Environmental significance lies in its location within the Ouachita Mountains ecoregion, where stormwater runoff can affect local waterways. Proper management is critical to prevent sediment and pollutant loading into receiving streams. The facility's compliance with NPDES permits ensures protection of water quality in the surrounding watershed.

The quarry is situated in the Ouachita Mountains, a region characterized by steep slopes and high erosion potential. Stormwater runoff from mining operations can carry sediment and pollutants into nearby streams, potentially impacting aquatic habitats. Regulatory oversight under the Clean Water Act requires implementation of stormwater pollution prevention plans to minimize these risks.