Nov 20 2008 A gas buildup under the Pueblo Branch Inn was responsible for a Nov. 13 explosion that killed a woman and injured several other people, authorities announced this morning at a news conference in Pueblo.
Investigators from the Bureau of Alcohol, Tobacco and Explosives and the Pueblo Fire Department capped a weeklong investigation by determining that natural gas leaked from a feeder line under the street outside the restaurant, "took the path of least resistance" and ended up collecting in part of the basement, said fire department spokesman Woody Percival said.
The combustible gas/air mix could have been ignited by a compressor motor on a walk-in cooler, pilot lights on several gas-operated appliances or candles that were recently placed atop tables in the dining room - or any number of other ignition sources.
"There are so many (potential) ignition points that we may
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