The fertilizer plant which exploded, killing at least 14 and partially razing a small Texas town, failed to alert the DHS it was storing 1,350 times the amount of ammonium nitrate allowable without mandatory safety checks, Reuters reports...
Fertilizer plants and depots must report to the DHS when they hold 400 pounds or more of ammonium nitrate due to its widespread use in the manufacture of bombs.
However, at the time of the blast, at least 540,000 pounds (270 tons) of ammonium nitrate was in a storage building, according to recent filings with both the Texas Department of State Health Services and the Environmental Protection Agency (EPA) which were not passed on to the DHS. The plant was also holding anhydrous ammonia and several other agriculture chemicals.
Pentagon explosives experts say that a blast entailing 270 tons of ammonium nitrate would dwarf virtually any non-nuclear weapons in the US arsenal.