C.A. Langford Company, Inc. -- Chert Pit Stormwater Outfall, Guntersville, Alabama

C.A. Langford Company, Inc. -- Chert Pit is a stormwater outfall located on Collins Road in Guntersville, Marshall County, Alabama. This facility manages stormwater runoff from an industrial chert mining operation, classified under NAICS 212321 (Construction Sand and Gravel Mining). As a stormwater outfall, it discharges collected runoff into local waterways, operating under the regulatory framework of the US Clean Water Act and Alabama's NPDES MS4 permit program. The facility's primary technical metric is discharge volume, though specific flow rates are not detailed in available records. In the United States, stormwater outfalls at industrial sites like mines are typically permitted under EPA's Multi-Sector General Permit (MSGP) for industrial activities, requiring monitoring of pollutants such as total suspended solids and pH. The chert pit operation likely implements best management practices (BMPs) like sediment basins or erosion controls to mitigate runoff impacts. This outfall contributes to stormwater management in the Guntersville area, which drains into the Tennessee River watershed. Proper operation helps protect local water quality from sediment and potential contaminants associated with mining. The facility's compliance with NPDES requirements is essential for minimizing environmental impact and supporting community water resources.

The facility discharges into the Tennessee River basin, a major waterway in the southeastern US. The surrounding Marshall County area features karst topography, which can increase groundwater vulnerability to surface runoff contaminants. Industrial mining operations like chert pits generate sediment-laden runoff that may contain elevated total suspended solids and trace metals. Under the Clean Water Act, such outfalls must comply with effluent limits to protect aquatic life and downstream uses.