On June 14, 2024, the Texas Commission on Environmental Quality (TCEQ) proposed a modified draft wastewater permit for ONEOK’s Mont Belvieu NGL Fractionation Plant in Chambers County, Texas. The draft permit would authorize increases in daily average and daily maximum wastewater flows at several discharge points that empty into ditches and streams that eventually flow into Cedar Bayou.  

The facility converts natural gas liquids into ethane, propane, natural gasoline, and other hydrocarbons and has a 225,000-barrel-per-day processing capacity. TCEQ is currently accepting public comments on the draft permit until at least July 14, 2024. Please see the public notice for more information.