Overview
MONTEVALLO ROAD ARC AL108 is a stormwater outfall in Birmingham, Alabama, USA. It operates under the US EPA NPDES MS4 permit framework for managing urban runoff.
MONTEVALLO ROAD ARC AL108 is a stormwater outfall located at 2110 Montevallo Road in Birmingham, Jefferson County, Alabama, United States. As a stormwater outfall, it serves as a discharge point for stormwater runoff from the surrounding urban catchment, which includes residential, commercial, and transportation land uses typical of the Birmingham metropolitan area. The facility operates under the regulatory framework of the US Clean Water Act, specifically the National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) permits. Birmingham is part of a Phase I MS4 area due to its population size, requiring the city to implement stormwater management programs to reduce pollutant discharges to the maximum extent practicable. The outfall likely conveys runoff from streets, parking lots, and other impervious surfaces, with potential pollutants including sediment, nutrients, heavy metals, and hydrocarbons. This outfall discharges into local receiving waters that are part of the Black Warrior River watershed. Stormwater management in this region is critical due to the area's history of industrial activity and the ecological importance of downstream water bodies. The facility contributes to the city's compliance with water quality standards and total maximum daily loads (TMDLs) for impaired waters in the region.
Environmental context
Birmingham's stormwater outfalls like MONTEVALLO ROAD ARC AL108 discharge into the Black Warrior River watershed, which has faced water quality challenges from urban runoff and historical industrial pollution. The area's clay soils and hilly terrain increase runoff velocity and erosion potential. The outfall's catchment includes mixed urban land uses, contributing typical stormwater pollutants such as sediment, nutrients, and metals. Regulatory oversight under the NPDES MS4 program requires Birmingham to implement best management practices (BMPs) to control these discharges and protect downstream aquatic ecosystems.
Frequently asked questions
MONTEVALLO ROAD ARC AL108 is located at 2110 Montevallo Road in Birmingham, Jefferson County, Alabama, United States.
It is a stormwater outfall that discharges urban runoff from the surrounding catchment into local waterways, operating under the NPDES MS4 permit program.
Stormwater outfalls in Birmingham are regulated under the US Clean Water Act through NPDES MS4 permits, which require the city to implement stormwater management programs to reduce pollutant discharges.
Common pollutants include sediment, nutrients (nitrogen and phosphorus), heavy metals, hydrocarbons, bacteria, and trash from urban runoff.
Stormwater management through BMPs such as detention basins, green infrastructure, and street sweeping helps reduce pollutant loads to rivers and streams, protecting aquatic life and drinking water sources.
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