'On July 11, 1998, at 4:40 p.m.,E.I. du Pont de Nemours & Company, Toledo, Ohio had a 1,690 pound release of xylene. Xylene is a hazardous substance under the Comprehensive Environmental Response, Compensation and Liability Act with a reportable quantity of 100 pounds. This 16 times the RQ. The person in charge of the facility called the National Response Center on July 12, 1998, at 1:43 a.m. or nine hours and three minutes after the incident.'