Overview
HIGHWAY 158 PIT is a stormwater outfall in Eight Mile, Alabama, serving the Mobile County area. It operates under US EPA NPDES MS4 regulations for stormwater discharge management.
HIGHWAY 158 PIT is a stormwater outfall located in Eight Mile, Alabama, within Mobile County. This facility manages stormwater runoff from the surrounding area, including nearby industrial activities associated with NAICS codes 212321 (Construction Sand and Gravel Mining) and 212399 (Other Nonmetallic Mineral Mining). As a stormwater outfall, it plays a key role in conveying runoff to receiving waters while complying with federal and state regulations. The facility operates under the US EPA National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) permit framework. In Alabama, the Alabama Department of Environmental Management (ADEM) administers the NPDES program, requiring permits for stormwater discharges from municipal and industrial sources. The outfall likely serves an urban or industrial catchment, with discharge points subject to monitoring and best management practices to control pollutants. Stormwater outfalls like HIGHWAY 158 PIT are critical infrastructure for managing runoff volume and quality, reducing flood risks, and protecting downstream water bodies. In the Mobile County area, stormwater management helps preserve local waterways and ecosystems. The facility's operational status indicates ongoing maintenance and regulatory compliance, supporting community resilience and environmental stewardship.
Environmental context
The facility discharges stormwater in a region characterized by a humid subtropical climate with high annual rainfall, increasing runoff volumes. The outfall's catchment includes industrial mining operations, which can contribute sediment and other pollutants to stormwater. Discharges may affect local water bodies, including those draining to Mobile Bay, an ecologically important estuary. Regulatory oversight under the Clean Water Act requires controls to minimize impacts on water quality and aquatic habitats.
Frequently asked questions
HIGHWAY 158 PIT is located on the north side of Highway 158, 0.75 miles west of Dogwood, in Eight Mile, Mobile County, Alabama, United States.
HIGHWAY 158 PIT is a stormwater outfall that collects and discharges stormwater runoff from its catchment area, which includes industrial mining operations, to receiving waters. It operates under NPDES MS4 permit requirements to manage runoff quality and quantity.
The facility operates under the US EPA NPDES MS4 program, which regulates stormwater discharges from municipal separate storm sewer systems. In Alabama, the Alabama Department of Environmental Management (ADEM) administers these permits, requiring compliance with water quality standards and implementation of best management practices.
The catchment area includes activities classified under NAICS codes 212321 (Construction Sand and Gravel Mining) and 212399 (Other Nonmetallic Mineral Mining), which can contribute sediment and other pollutants to stormwater runoff.
Effective stormwater management reduces flooding, controls erosion, and filters pollutants before discharge, protecting local waterways and the Mobile Bay estuary. It supports compliance with the Clean Water Act and preserves aquatic habitats.
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