Overview
MWB DIRT PIT is a stormwater outfall in Marion, Alabama, USA, serving industrial and construction activities. It operates under the US EPA NPDES MS4 permit framework.
MWB DIRT PIT is a stormwater outfall located at the intersection of Highway 5 and Highway 183 in Marion, Perry County, Alabama, United States. This facility manages stormwater runoff from industrial activities, as indicated by its NAICS codes covering mining and construction sectors. As a stormwater outfall, it discharges collected runoff into local waterways, playing a key role in managing urban and industrial stormwater. The facility operates under the regulatory framework of the US Clean Water Act, specifically the National Pollutant Discharge Elimination System (NPDES) program. Stormwater outfalls like MWB DIRT PIT are typically covered under Multi-Sector General Permits (MSGP) for industrial activities or Municipal Separate Storm Sewer System (MS4) permits for urban areas. Given its location in a small city and industrial context, it likely falls under Phase II MS4 requirements or an industrial stormwater permit. Environmental significance includes potential impacts on receiving waters in the Black Warrior River watershed. Proper management of stormwater from industrial sites is critical to prevent pollutants such as sediment, heavy metals, and hydrocarbons from degrading water quality. The facility's operational status indicates ongoing compliance with permit conditions to protect local aquatic ecosystems.
Environmental context
The facility is located in Perry County, Alabama, within the Black Warrior River watershed, which drains into the Mobile Bay estuary. Stormwater runoff from industrial and construction activities can carry sediment, nutrients, and pollutants that may impair water quality. The region's climate, with frequent heavy rainfall, increases the risk of runoff events. Regulatory oversight under the Clean Water Act aims to minimize these impacts through best management practices and monitoring.
Frequently asked questions
MWB DIRT PIT is located at the intersection of Highway 5 and Highway 183 in Marion, Perry County, Alabama, United States.
MWB DIRT PIT is a stormwater outfall that discharges collected stormwater runoff from industrial and construction activities into local waterways, helping to manage stormwater in compliance with environmental regulations.
Stormwater outfalls in the US are regulated under the Clean Water Act through the National Pollutant Discharge Elimination System (NPDES). Industrial facilities require Multi-Sector General Permits (MSGP), while urban areas are covered under Municipal Separate Storm Sewer System (MS4) permits, with Phase I for large municipalities and Phase II for smaller ones.
Common pollutants include sediment, heavy metals, oil and grease, nutrients, and chemicals from industrial processes. These can harm aquatic life and water quality if not properly managed.
Stormwater management uses best management practices (BMPs) like retention basins, sediment controls, and treatment systems to reduce pollutant loads before discharge, protecting water quality in rivers, lakes, and estuaries.
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