Overview
HOWELL 19 DIRT PIT is a stormwater outfall in Prattville, Alabama, serving an industrial catchment. It operates under US EPA NPDES MS4 regulations for stormwater discharge.
HOWELL 19 DIRT PIT is a stormwater outfall located in Prattville, Autauga County, Alabama, United States. The facility manages stormwater runoff from an industrial catchment area, with NAICS codes 212321 (Construction Sand and Gravel Mining) and 212399 (Other Nonmetallic Mineral Mining and Quarrying). As a stormwater outfall, it discharges collected runoff into local waterways, playing a key role in managing urban and industrial stormwater in the region. Operating under the US EPA National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) program, this outfall is subject to Phase II MS4 requirements for small municipalities. The facility's discharge is regulated to meet Clean Water Act standards, including controls for pollutants common in industrial runoff such as sediment, heavy metals, and hydrocarbons. Typical stormwater outfalls in Alabama are designed to handle peak flows from storm events, with sizing based on local rainfall intensity and catchment area. The environmental significance of HOWELL 19 DIRT PIT lies in its role in mitigating flooding and reducing pollutant loads to receiving waters. The outfall serves an area with mining and quarrying activities, which can generate high sediment loads. Proper operation helps protect downstream water quality in Autauga County's streams and rivers, supporting local ecosystems and community water resources.
Environmental context
The outfall discharges into a catchment that includes mining and quarrying operations, which can contribute sediment and other pollutants to stormwater runoff. Alabama's climate features frequent heavy rainfall events, increasing the risk of erosion and pollutant transport. The facility operates under NPDES MS4 permits, which require best management practices to control runoff quality and quantity, protecting impaired water bodies in the region.
Frequently asked questions
HOWELL 19 DIRT PIT is located on County Road 19, 2 miles south of Highway 82, in Prattville, Autauga County, Alabama, United States.
It is a stormwater outfall that collects and discharges stormwater runoff from an industrial catchment area, including mining and quarrying operations, into local waterways.
Stormwater outfalls in Alabama are regulated under the US EPA NPDES MS4 program, which requires permits for discharges from municipal separate storm sewer systems. Phase II rules apply to small municipalities, with requirements for pollution prevention and control.
Industrial stormwater runoff can contain sediment, heavy metals, hydrocarbons, and other pollutants from mining, quarrying, and construction activities. Best management practices are used to reduce these contaminants.
The Clean Water Act requires NPDES permits for point source discharges, including stormwater outfalls. These permits set limits on pollutant discharges and mandate monitoring and reporting to protect water quality.
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