Overview
SIBLEY - HAMILTON DIRT PIT is a stormwater outfall in Grand Bay, Alabama, United States. It operates under the US EPA NPDES MS4 permit framework for stormwater discharges.
SIBLEY - HAMILTON DIRT PIT is a stormwater outfall located in Grand Bay, Mobile County, Alabama, United States. The facility is operational and serves as a point of discharge for stormwater runoff in the area. As a stormwater outfall, it is part of the broader infrastructure managed under the National Pollutant Discharge Elimination System (NPDES) Municipal Separate Storm Sewer System (MS4) permits, which regulate stormwater discharges in urbanized areas. The facility is situated in a region with a mix of urban and industrial land uses, typical of the Gulf Coast area. The NAICS code 212321 indicates a connection to construction sand and gravel mining, suggesting the outfall may handle runoff from industrial or mining activities. Stormwater outfalls like this one are critical for managing runoff volume and quality, preventing flooding, and protecting downstream water bodies from pollutants. Environmental significance includes the potential discharge to nearby water bodies, which may be impaired by sediment, nutrients, or other pollutants common in stormwater runoff. The facility's location in Mobile County, near the Gulf of Mexico, underscores the importance of proper stormwater management to protect coastal ecosystems and comply with the Clean Water Act. Regulatory oversight ensures that discharges meet water quality standards and best management practices are implemented.
Environmental context
The stormwater outfall is located in Grand Bay, Alabama, within the Mobile Bay watershed, which drains into the Gulf of Mexico. The region experiences a subtropical climate with high rainfall, leading to significant stormwater runoff. Urban and industrial activities in the catchment area can contribute pollutants such as sediment, heavy metals, and nutrients to local waterways. Proper management of this outfall is essential to prevent degradation of aquatic habitats and to comply with the Clean Water Act's goals for fishable and swimmable waters.
Frequently asked questions
SIBLEY - HAMILTON DIRT PIT is located on Old Pascagoula Road in Grand Bay, Mobile County, Alabama, United States.
It is a stormwater outfall, which is a point of discharge for stormwater runoff from urban and industrial areas.
The outfall operates under the US EPA NPDES MS4 permit program, which regulates stormwater discharges from municipal separate storm sewer systems to protect water quality.
Stormwater outfalls in Alabama help manage runoff that can carry pollutants to rivers and coastal waters, including the Gulf of Mexico, impacting aquatic ecosystems and public health.
The Clean Water Act requires permits for stormwater discharges to ensure they do not violate water quality standards, promoting the use of best management practices to reduce pollution.
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