through a 6-inch sewer lateral that had been bored through to install the gas line. 1976 On September 10, sewer work and heavy equipment caused soil subsidence on a 6-inch cast iron gas pipe in Blue Island, Illinois, resulting in the pipe breaking in 4 places. Gas then migrated into a building, that later exploded, killing 1 person, and, injuring 10 others. 1976 On November 28, an 8-inch Sunoco pipeline began leaking in Toledo, Ohio, spilling about 1,000 barrels of gasoline, forcing a major road closure. There were no injuries. 1976 An explosion and fire at a gas pipeline compressor station in Orange Grove, Texas killed one plant worker, and injured another on December 6. References Lists of pipeline accidents in the United States