The following is a list of pipeline accidents in the United States in 1975. It is one of several lists of U.S. pipeline accidents. See also: list of natural gas and oil production accidents in the United States. Incidents This is not a complete list of all pipeline accidents. For natural gas alone, the Pipeline and Hazardous Materials Safety Administration (PHMSA), a United States Department of Transportation agency, has collected data on more than 3,200 accidents deemed serious or significant since 1987. A "significant incident" results in any of the following consequences: Fatality or injury requiring in-patient hospitalization. $50,000 or more in total costs, measured in 1984 dollars. Liquid releases of five or more barrels (42 US gal/barrel). Releases resulting in an unintentional fire or explosion. PHMSA and the National Transportation Safety Board (NTSB) post-incident data and results of investigations into accidents involving pipelines that carry a variety of products, including natural gas, oil, diesel fuel, gasoline, kerosene, jet fuel, carbon dioxide, and other substances. Occasionally pipelines are re-purposed to carry different products. The following incidents occurred during 1975: 1975 A Mid-Valley Pipeline crude oil pipeline at Lima, Ohio, ruptured after a valve was accidentally closed against a pumping pipeline, on January 17. The spraying crude oil ignited, killing a Terminal Operator. 1975 On January 23, a propane chiller at a MAPCO facility exploded violently during maintenance work on it, near Iowa City, Iowa. 2 workers were killed and 3 others injured by the failure. 1975 A gas transmission pipeline exploded and gas burned in Mediapolis, Iowa on January 27. There were no injuries reported. 1975 In March, a leak was discovered in a 14-inch petroleum products pipeline in Mecklenburg County, North Carolina. Plantation Pipeline began efforts to recover the spilled petroleum. From that time through June 1983, approximately 2,022 barrels of spilled petroleum products were recovered from standpipes at the leak site. Remediation efforts stopped in October 1984. Later tests raised questions on the possibility of not all of the spill products were recovered. 1975 A 12-inch crude oil pipeline ruptured near Harwood, Missouri, on March 26. Heavy rain slowed the cleanup. 1975 A natural gas liquids (NGL) pipeline ruptured due to previous mechanical damage, at Devers, Texas. The escaping vapor cloud drifted across US Highway 90, where a passing automobile ignited the vapor. 4 people were killed in a following vapor cloud fire. The pipeline had been damaged