The news comes as the owners of Kilroot announced plans to install clean-up equipment at the plant near Carrickfergus at a cost of Â£35 million.
Citizens in Carrickfergus blame Kilroot for what happened at the plant.
( z1 blame :ARG0 ( z2 citizen :location ( z3 city :name ( z4 name :op "Carrickfergus" ) ) ) :ARG1 ( z5 person :name ( z6 name :op "Kilroot" ) ) :ARG2 ( z7 event :location ( z8 plant ) ) )