Overview
NORFOLK SOUTHERN NORRIS YARD is a stormwater outfall in Irondale, Alabama, USA. It manages runoff from a rail yard facility under NPDES MS4 permit requirements.
NORFOLK SOUTHERN NORRIS YARD is a stormwater outfall located at 1400 Norfolk Southern Drive in Irondale, Jefferson County, Alabama. This facility handles stormwater discharge from a rail yard and freight transportation operation, classified under NAICS codes 482111 (Line-Haul Railroads) and 488510 (Freight Transportation Arrangement). As a stormwater outfall, it is part of the broader network of regulated stormwater discharges in the United States. The facility operates under the National Pollutant Discharge Elimination System (NPDES) framework, which governs stormwater discharges from industrial activities. As a rail yard, it is subject to EPA's Multi-Sector General Permit (MSGP) for stormwater discharges associated with industrial activity. The outfall likely includes best management practices such as sediment basins, oil-water separators, or vegetative controls to treat runoff before discharge. Located in the Birmingham metropolitan area, this outfall contributes to managing stormwater quality in the Cahaba River watershed. Proper operation helps protect local water bodies from pollutants commonly associated with rail yards, including heavy metals, hydrocarbons, and sediment. The facility's compliance with NPDES permit conditions is essential for maintaining water quality in downstream receiving waters.
Environmental context
The outfall discharges into the Cahaba River watershed, which is known for high biodiversity and serves as a drinking water source for the region. Urban and industrial runoff from rail yards can introduce pollutants such as oil, grease, metals, and sediment. The facility's stormwater management practices are critical to minimizing impacts on this sensitive aquatic ecosystem.
Frequently asked questions
NORFOLK SOUTHERN NORRIS YARD is located at 1400 Norfolk Southern Drive in Irondale, Jefferson County, Alabama, United States.
It is a stormwater outfall that manages runoff from a rail yard facility, treating and discharging stormwater in compliance with NPDES regulations.
Rail yard stormwater often contains heavy metals, hydrocarbons (oil and grease), sediment, and other industrial pollutants that require treatment before discharge.
This outfall is regulated under the Clean Water Act through the NPDES Multi-Sector General Permit (MSGP) for industrial stormwater discharges, specifically for the rail transportation sector.
The facility implements best management practices such as sediment controls, oil-water separators, and regular monitoring to reduce pollutant loads before discharge into the Cahaba River watershed.
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