Record Display for the EPA National Library Catalog


Main Title Letter from Phillips Petroleum Co. to USEPA Regarding Information on the Accidental Release of Gas, Primarily Isobutane that Occurred August 13, 1978 at the East Chicago Terminal.
CORP Author Phillips Petroleum Co., Bartlesville, OK.;Environmental Protection Agency, Washington, DC. Office of Toxic Substances.
Publisher 13 Sep 1978
Year Published 1978
Report Number 8EHQ-0978-0240;
Stock Number OTS-0200566
Additional Subjects Gases ; Accidents ; Hazardous materials ; Toxicty ; Butanes ; Pipelines ; Tanks ; Fires ; Air quality ; USEPA ; Environmental effects ; Evacuation ; Risk assessment ; Accidental release ; Isobutane ; Phillips Petroleum Company
Library Call Number Additional Info Location Last
NTIS  OTS-0200566 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 9p
On August 13, 1978, at 5:30 a.m., there was an accidental release of gas, primarily isobutene, at the East Chicago Terminal. The release occurred as a tank battery was being filled via pipeline. A liquid level gauge malfunctioned, and the tanks were filled liquid full. This caused a relief valve to activate, releasing the gas to the atmosphere. A line to another tank battery was opened, the pressure was equalized and the relief valve closed. The gas released was composed of approximately 70& isobutene (CAS Registry Number 75-28-5) and approximately 30% isopentane (CAS Registry Number 78-78-4). Each component was considered 95% pure. The maximum estimate of the amount released is 250 barrels. Local police and fire officials were notified, and residents in the area of the release were evacuated. Three houses in the area were destroyed and twelve others were slightly damaged by fire, but the exact cause (or causes) has (have) not been determined.