In 2000 Vincent Cannistraro, a former senior U.S. intelligence official, stated that the Soviet KGB had ordered the East German Stasi to sabotage the chemical factory.
Med največjimi onasnaževalci vode so dinitro- orto- kresol, organofosfatne kemikalije propetamfos, paration, disulfoton, tiometon, etrimphos in fenitrotion, kot tudi organoklorove metoksuron.