Mar 03, 2005. /Lesprom Network/. A dam burst occured on Arkhangelsky pulp and paper enterprise (Russian). Partially the sewage water containing ashes flowed into the North Dvina river. According to Arkhangelsky environment and labor protection director Valeri Ananyin, the cause of the incident is under investigation. The rebuilding of the dam will start after the commission finishes the examination of the object.