Norco Manufacturing Complex & Associated Facilities - Major Refinery in Norco, Louisiana

The Norco Manufacturing Complex & Associated Facilities is a large-scale refinery located in Norco, St. Charles Parish, Louisiana, on the Mississippi River. As a key facility in the United States' Gulf Coast refining corridor, it plays a significant role in the nation's oil infrastructure, processing crude oil into gasoline, diesel, jet fuel, and petrochemical feedstocks. The facility operates under the regulatory framework of the U.S. Environmental Protection Agency (EPA), including the Clean Air Act (CAA) Refinery MACT standards and the Clean Water Act. Its operations are subject to stringent emissions controls and spill prevention measures. The complex's NAICS codes (324110, 325110, 424690) indicate involvement in petroleum refining, petrochemical manufacturing, and wholesale distribution, reflecting its integrated nature. Located in an industrial corridor along the Mississippi River, the facility is situated in a region with dense petrochemical infrastructure. Its proximity to water transport and pipelines enhances its logistical efficiency. The complex contributes to local employment and energy supply, while its environmental management is critical given the sensitive riverine and coastal ecosystems of Louisiana.

The facility is situated along the Mississippi River in Louisiana, a region with significant ecological value including wetlands and coastal habitats. The refining process involves high Nelson complexity index levels, indicating potential for emissions and waste. Spill risk is elevated due to riverine siting and handling of large crude volumes. The facility must comply with EPA regulations for air emissions and water discharges, and is subject to MARPOL Annex I for marine pollution prevention.