Shell is performing environmental investigations and remedial efforts for a benzene release area and other petroleum hydrocarbons discovered during investigations of that release at and near the ConocoPhillips Wood River Refinery in Roxana. These efforts are being overseen by the Illinois Environmental Protection Agency.
June 21, 2011 Availability Session Presentation Slides
April 23, 2013 Availability Session Presentations
For additional information, including Shell's technical documents concerning their remedial efforts, please see Shell Oil Products' Roxana, Illinois Environmental Investigation Information website.