M-I SWACO THEODORE FACILITY Stormwater Outfall, Theodore, Alabama

M-I SWACO THEODORE FACILITY is a stormwater outfall located at 7625 Dauphin Island Parkway in Theodore, Mobile County, Alabama. The facility is operational and serves an industrial catchment, likely associated with the oil and gas sector given its NAICS code 213112 (Support Activities for Oil and Gas Operations). As a stormwater outfall, it manages runoff from the site to comply with Clean Water Act regulations. The facility operates under the US EPA National Pollutant Discharge Elimination System (NPDES) permitting program. Stormwater discharges from industrial facilities are typically regulated under Multi-Sector General Permits (MSGP) or individual permits. The site's location in Mobile County places it within the jurisdiction of the Alabama Department of Environmental Management (ADEM), which implements the NPDES program in the state. This outfall contributes to managing stormwater runoff from an industrial facility in the Gulf Coast region, an area prone to heavy rainfall and hurricanes. Proper stormwater management is critical to prevent flooding and protect downstream water quality in Mobile Bay and the Gulf of Mexico. The facility's compliance with permit conditions helps mitigate risks associated with industrial pollutants in stormwater discharge.

The facility is located in Theodore, Alabama, within the Mobile Bay watershed, a large estuary that supports diverse aquatic life and commercial fisheries. The region experiences a subtropical climate with high annual rainfall, increasing the potential for stormwater runoff to carry pollutants from industrial sites into sensitive water bodies. Industrial stormwater discharges must be managed to prevent contamination of receiving waters, particularly given the proximity to ecologically important coastal habitats.