| The line-of-duty report from the Texas State Fire Marshal's 
				Office examined the deaths of a dozen first responders and 
				concluded the West volunteer fire department attacked a fire at 
				the plant "that was significantly beyond the extinguishment 
				stage" using small hose lines and a limited water supply.
 The primary focus should have been evacuation not engaging the 
				fire, the agency said.
 
 The April 17, 2013, incident at West Fertilizer Co., which had 
				operated for more than 50 years in a residential part of town, 
				killed three residents in addition to the firefighters and 
				caused damage estimated at $100 million.
 
 The cause of the fire remains unknown but the source of the 
				explosion it sparked was ammonium nitrate stored in a wooden 
				container at the plant, investigators said. The ammonium nitrate 
				detonated with the force of approximately 15,000 to 20,000 
				pounds (6,800 to 9,000 kg) of TNT, according to federal 
				officials.
 
 "The fire department did not approach this fire as a commercial 
				structure with hazardous materials, but rather initiated 
				residential structural firefighting practices, with which they 
				were familiar," the report said.
 
 The fire marshal's office said it is not placing blame on the 
				first responders, but recommended that Texas require more 
				extensive training and planning by agencies at all levels in 
				response to incidents like the explosion.
 
 (Editing by Edith Honan and Simon Cameron-Moore)
 
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