Lee Davis Chert Pit Stormwater Outfall, Valley Head, Alabama

LEE DAVIS CHERT PIT is a stormwater outfall located on Lyons Road, 0.75 miles northwest of US Highway 11 in Valley Head, DeKalb County, Alabama. This facility manages stormwater runoff from industrial mining activities, including NAICS codes 212321 (Construction Sand and Gravel Mining), 212323 (Sand and Gravel Mining), 212325 (Clay and Ceramic and Refractory Minerals Mining), 212390 (Other Nonmetallic Mineral Mining and Quarrying), and 212399 (All Other Nonmetallic Mineral Mining). As a stormwater outfall, it is subject to the National Pollutant Discharge Elimination System (NPDES) permitting framework under the Clean Water Act, specifically for industrial stormwater discharges. In the United States, stormwater outfalls at industrial sites must comply with EPA's Multi-Sector General Permit (MSGP) or individual permits, which require implementation of stormwater pollution prevention plans (SWPPPs) and monitoring of discharge quality. The facility's location in a rural area of Alabama suggests potential discharge to nearby water bodies, which may be subject to state water quality standards. The mining operations likely generate sediment and other pollutants that must be controlled through best management practices (BMPs). The environmental significance of this outfall lies in its role in managing runoff from mineral extraction activities, which can impact local streams and groundwater. Proper operation helps prevent erosion, sedimentation, and contamination of receiving waters, supporting the ecological health of the surrounding region. The facility contributes to the broader stormwater management infrastructure in DeKalb County, aligning with MS4 permit requirements for municipal separate storm sewer systems.

The facility is situated in a rural area of DeKalb County, Alabama, near the Appalachian foothills. Local water bodies may include tributaries of the Tennessee River system. Mining operations can increase sediment loads and introduce pollutants such as metals and hydrocarbons to stormwater runoff. The region's climate, with frequent rainfall, necessitates effective stormwater management to prevent erosion and protect aquatic habitats. Regulatory oversight under the Clean Water Act ensures that discharges meet water quality standards to safeguard downstream ecosystems.