MPT OF 69TH STREET LLC AIRCRAFT HANGAR Stormwater Outfall, Birmingham, Alabama

MPT OF 69TH STREET LLC AIRCRAFT HANGAR is a stormwater outfall located at 5009 69th Street North in Birmingham, Jefferson County, Alabama. This facility manages stormwater runoff from an aircraft hangar and associated industrial activities, classified under NAICS codes 236210 (Industrial Building Construction), 237990 (Other Heavy and Civil Engineering Construction), and 488119 (Other Airport Operations). As a stormwater outfall, it discharges collected runoff into local waterways, operating under the regulatory framework of the US Clean Water Act and EPA's NPDES MS4 permit program. The facility's catchment area is primarily industrial, including aircraft hangar operations and construction activities. Stormwater outfalls in such settings typically manage runoff from impervious surfaces like roofs, parking lots, and tarmacs, which may contain pollutants such as oils, heavy metals, and sediments. The facility's discharge point is subject to local MS4 permit requirements, which mandate stormwater pollution prevention plans (SWPPPs) and best management practices (BMPs) to control runoff quality. Birmingham's stormwater system is managed under the Jefferson County MS4 permit, addressing urban runoff from the greater metropolitan area. This outfall contributes to the broader stormwater management infrastructure in Birmingham, helping to mitigate flooding and protect water quality in receiving waters such as Village Creek or the Black Warrior River basin. Proper operation of this outfall is essential for compliance with NPDES permit conditions and for minimizing environmental impacts from industrial stormwater discharges. The facility's location in an industrial zone underscores the importance of monitoring and treatment to prevent contamination of local water bodies.

Birmingham, Alabama, experiences a humid subtropical climate with frequent thunderstorms and an average annual rainfall of about 55 inches, leading to significant stormwater runoff. The facility's industrial catchment, including aircraft hangar operations, poses risks of pollutant discharge such as hydrocarbons, heavy metals, and sediment. Local waterways like Village Creek are part of the Black Warrior River basin, which has segments listed as impaired under the Clean Water Act. Effective stormwater management at this outfall is critical to prevent further degradation and to support the health of aquatic ecosystems in the region.