Overview
MAZDA TOYOTA MANUFACTURING USA INC. operates a stormwater outfall in Madison, Alabama, managing runoff from automotive manufacturing facilities under US EPA NPDES MS4 regulations.
MAZDA TOYOTA MANUFACTURING USA INC. operates a stormwater outfall located at 9000 GREENBRIER PKWY NW in Madison, Limestone County, Alabama. This facility manages stormwater runoff from automotive manufacturing operations, classified under NAICS codes 336110 and 336111. As a stormwater outfall in the United States, it is subject to the Clean Water Act and NPDES MS4 permit requirements, which regulate discharges to ensure water quality standards are met. The facility operates within Alabama's regulatory framework, where industrial stormwater permits are enforced by the Alabama Department of Environmental Management (ADEM). The outfall likely serves a large industrial catchment area, given the scale of the automotive manufacturing plant. Typical stormwater management practices include sedimentation basins, oil-water separators, and erosion control measures to mitigate pollutants such as sediment, heavy metals, and hydrocarbons. Environmental significance lies in the facility's role in preventing untreated runoff from entering nearby water bodies. The outfall discharges into the Tennessee River watershed, which supports regional water supply and aquatic habitats. Compliance with NPDES permit limits is critical to protect downstream water quality and ecosystem health.
Environmental context
The facility is located in the Tennessee River watershed, a major water resource in the southeastern United States. Stormwater runoff from industrial sites like this can carry pollutants such as sediment, oil, grease, and heavy metals, which may impair water quality if not properly managed. The region experiences a humid subtropical climate with frequent rainfall, increasing the potential for runoff events. Regulatory oversight under the Clean Water Act and NPDES MS4 permits ensures that discharges are monitored and treated to minimize environmental impact.
Frequently asked questions
The facility is located at 9000 GREENBRIER PKWY NW, Madison, Alabama 35756, in Limestone County.
It manages stormwater runoff from the automotive manufacturing plant, discharging treated water under an NPDES permit to protect local water quality.
The facility operates under the US Clean Water Act and NPDES MS4 permit program, enforced by the Alabama Department of Environmental Management (ADEM).
Common pollutants include sediment, oil and grease, heavy metals, and chemicals from manufacturing processes, which are controlled through best management practices.
Proper management prevents untreated runoff from entering waterways, reducing pollution and protecting aquatic habitats in the Tennessee River watershed.
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