THOMPSON FABRICATING, LLC Stormwater Outfall, Tarrant, Alabama | Industrial Stormwater Management

THOMPSON FABRICATING, LLC is a stormwater outfall located at 1411 Commerce Place in Tarrant, Jefferson County, Alabama. The facility manages stormwater discharges from industrial activities associated with NAICS codes 332322 (Sheet Metal Work Manufacturing) and 332323 (Ornamental and Architectural Metal Work Manufacturing). As a stormwater outfall, it is subject to the National Pollutant Discharge Elimination System (NPDES) permitting program under the Clean Water Act. In the United States, industrial stormwater discharges are regulated through NPDES permits, which require facilities to implement Stormwater Pollution Prevention Plans (SWPPPs) and monitor effluent quality. The facility's location in an urban-industrial area of Jefferson County means its discharge may flow into local water bodies that are part of the Black Warrior River watershed. Compliance with permit conditions is essential to prevent pollutants from entering receiving waters. The environmental significance of this outfall lies in its role in managing runoff from metal fabrication operations, which can contain heavy metals, oils, and sediments. Proper stormwater management helps protect downstream water quality and aquatic habitats. The facility's operational status indicates active compliance with regulatory requirements to minimize environmental impact.

The outfall is located in Tarrant, Alabama, within the Black Warrior River watershed. The region experiences a humid subtropical climate with significant rainfall, increasing the potential for stormwater runoff to carry pollutants from industrial areas into local streams and rivers. Discharges from metal fabrication facilities may contain heavy metals, oils, and suspended solids, which can impair water quality if not properly managed. Regulatory oversight under the Clean Water Act aims to mitigate these impacts through NPDES permits and best management practices.