▁Material s ▁Saf ety ▁Administration ▁( PH MS A ), ▁a ▁United ▁States ▁Department ▁of ▁Transport ation ▁ag ency , ▁has ▁collected ▁data ▁on ▁more ▁than ▁ 3 , 2 0 0 ▁acc idents ▁de emed ▁serious ▁or ▁significant ▁since ▁ 1 9 8 7 . ▁ ▁A ▁" sign ific ant ▁incident " ▁results ▁in ▁any ▁of ▁the ▁following ▁consequences : ▁ ▁fatal ity ▁or ▁injury ▁requiring ▁in - pat ient ▁hospital ization ▁ ▁$ 5 0 , 0 0 0 ▁or ▁more ▁in ▁total ▁costs , ▁measured ▁in ▁ 1 9 8 4 ▁dollars ▁ ▁liquid ▁releases ▁of ▁five ▁or ▁more ▁bar rel s ▁( 4 2 ▁US ▁gal / bar rel ) ▁ ▁releases ▁resulting ▁in ▁an ▁un intent ional ▁fire ▁or ▁explos ion ▁ ▁P H MS A ▁and ▁the ▁National ▁Transport ation ▁Saf ety ▁Board ▁( NT SB ) ▁post ▁incident ▁data ▁and ▁results ▁of ▁investig ations ▁into ▁acc idents ▁involving ▁pip elines ▁that ▁carry ▁a ▁variety ▁of ▁products , ▁including ▁natural ▁gas , ▁oil , ▁dies el ▁fuel , ▁gas oline , ▁k eros ene , ▁jet ▁fuel , ▁carbon ▁dio x ide , ▁and ▁other ▁subst ances . ▁Occ asion ally ▁pip elines ▁are ▁rep ur posed ▁to ▁carry ▁different ▁products . ▁▁ ▁On ▁January ▁ 4 , ▁ 2 0 0 9 , ▁a ▁ 6 . 6 2 5 - inch ▁storage ▁well ▁line ▁operated ▁by ▁Columbia ▁Gas ▁Trans mission ▁Company ▁in ▁El k ▁View ▁( near ▁Char l eston ), ▁K ana wh