Tanner Quarry Stormwater Outfall, Tanner, Alabama | United States

Tanner Quarry is a stormwater outfall facility located at 9271 US Hwy 31 in Tanner, Limestone County, Alabama, United States. The facility is operational and serves as a point of discharge for stormwater runoff from quarry activities, classified under NAICS code 212312 (Crushed and Broken Limestone Mining and Quarrying). As a stormwater outfall, it is part of the broader network of facilities managing runoff in industrial settings. The facility operates under the regulatory framework of the US Clean Water Act and the National Pollutant Discharge Elimination System (NPDES), which requires permits for stormwater discharges from industrial activities. In Alabama, the Alabama Department of Environmental Management (ADEM) administers the NPDES program. The quarry likely holds a Multi-Sector General Permit (MSGP) for stormwater discharges, which mandates best management practices (BMPs) and monitoring to minimize pollutant runoff. Tanner Quarry's stormwater management is significant for protecting local water quality in the Tennessee River watershed. Proper handling of runoff from quarry operations helps prevent sedimentation and potential contamination of nearby streams and groundwater. The facility's compliance with NPDES requirements supports environmental stewardship in the region.

Tanner Quarry is located in Limestone County, Alabama, within the Tennessee River basin. The area experiences a humid subtropical climate with significant rainfall, making stormwater management critical to prevent erosion and sedimentation. The quarry's stormwater discharges must be managed to protect downstream water bodies, which support aquatic habitats and local water supplies. Regulatory oversight under the Clean Water Act ensures that industrial stormwater runoff is treated or controlled to minimize environmental impact.