Dow’s St. Charles Operations (SCO) consists of a 2,000-acre petrochemical manufacturing complex in Hahnville, just upriver from New Orleans, and a 40-acre site in Norco. SCO is owned by Union Carbide Corporation, a wholly-owned subsidiary of The Dow Chemical Company, and began operations in 1966.
We now have more than 900 employees and contract employees at SCO. The site has been an OSHA Star Site for over 20 years with an exemplary safety record and an employee injury rate that is one of the lowest in the country.
With an industrial park design, SCO has companies co-located on site. It offers numerous transportation options and a new state-of-the-art truck staging area. Electricity and steam are generated on site. There is available capacity of both. The site has three water treatment plants.
Products made at SCO end up in thousands of household, business and consumer products that improve everyday life, including plastics, insecticides, films and fabrics, antifreeze, jet fuel, brake fluid, paints and adhesives, textiles, lubricants, pharmaceuticals, medical supplies, personal care products, toothpaste, shampoos, soaps, cleaning agents, detergents, fabric softeners, animal feed supplements and more.
Fast Facts on St. Charles Operations
Meet Our Site Leader

Steve Milligan
SCO Site Leader
Steve Milligan is Site Leader for St. Charles Operations in Louisiana and Global Business Manufacturing Leader for Dow’s Ethylene Oxide and Ethylene Glycol (EOEG) business in the Basic Chemicals Division.
Steve joined Dow at the Plaquemine Louisiana site in 1983. He worked in a variety of M&E roles including EH&S Delivery Leader and Production leader primarily within Hydrocarbons and EOEG. In 1997, Steve relocated to Fort Saskatchewan, Alberta Canada to be the Production Leader of the EOEG facility. In 2001 he became the Production Leader of LHC-8 in Oyster Creek. Steve relocated to St. Charles Operations in Hahnville, Louisiana in 2004 and was named the Production Leader of the SCO-1 and SCO-2 Olefins plants. In 2006, Steve was named EOEG Global Technology Director with responsibility for Dow’s 6 EOEG facilities and JV plants including EQUATE, MEGlobal, and OPTIMAL. In 2009, Milligan accepted his current role.
Milligan graduated from the University of Alabama with a Bachelors degree in Chemical Engineering. He has three children and lives in Gonzales, Louisiana.




