Zero Mountain, Inc. Fort Smith Stormwater Outfall | Fort Smith, Arkansas

Zero Mountain, Inc. Fort Smith is a stormwater outfall located at 8425 Highway 45 South in Fort Smith, Arkansas, within Sebastian County. The facility is operational and classified under NAICS code 493120 for refrigerated warehousing and storage, indicating an industrial catchment area. As a stormwater outfall, it discharges stormwater runoff from the site into local waterways, subject to the US EPA's National Pollutant Discharge Elimination System (NPDES) permitting framework. In the United States, stormwater outfalls are regulated under the Clean Water Act, with Phase I and Phase II MS4 permits governing discharges from municipal separate storm sewer systems. Industrial facilities like Zero Mountain must comply with stormwater pollution prevention plans (SWPPPs) to minimize pollutant runoff. The facility's location in Fort Smith places it within the Arkansas River basin, where stormwater management is critical for water quality. The environmental significance of this outfall lies in its potential to affect receiving waters in the Arkansas River watershed. Proper management of stormwater from industrial sites helps prevent contamination from sediments, chemicals, and other pollutants. Zero Mountain's compliance with NPDES requirements supports local water quality goals and reduces the risk of impairment to downstream water bodies.

The facility is located in Fort Smith, Arkansas, within the Arkansas River watershed. Stormwater runoff from industrial sites like Zero Mountain can carry pollutants such as sediments, heavy metals, and chemicals into local streams and rivers. The region's climate, with seasonal rainfall, increases the potential for runoff events. Effective stormwater management is essential to protect water quality in the Arkansas River and its tributaries, which support aquatic ecosystems and downstream uses.