Martin Marietta Magnesia Specialties, Inc. / Greenpoint AG Holdings DBA Fort Lou Harbour, Lenoir City, Tennessee

Martin Marietta Magnesia Specialties, Inc. / Greenpoint AG Holdings DBA Fort Lou is a harbour facility located at 5480 Industrial Park Drive in Lenoir City, Tennessee, United States. The plant operates within the marine utilities sector, handling cargo and vessel services in the region. The facility operates under U.S. regulatory frameworks including the EPA Vessel General Permit (VGP) and NPDES permits for shoreside operations. As a harbour, it manages stormwater runoff and oil-water separation to comply with environmental standards. The site's NAICS code 488320 indicates support activities for water transportation. Located in Loudon County near the Tennessee River, the facility plays a role in regional logistics and industrial supply chains. Its operational status supports local commerce and transportation needs, contributing to the economic activity of Lenoir City and the broader Tennessee Valley area.

The facility is situated in an inland riverine environment, with proximity to the Tennessee River and its associated ecosystems. Operations involve cargo handling and vessel services, which require careful management of stormwater runoff and potential oil-water discharges. The site's location in a temperate climate with seasonal precipitation patterns necessitates robust stormwater management practices to protect local water quality.