At the beginning of September, DWH received official certification of the energy management system. Following the start-up of the system on 1st July 2013, DWH then spent the next few months creating the necessary conditions for successful certification.
At the end of April 2014, the auditors of “TÜV SÜD” visited DWH, at Trier and Horath, to check progress on the energy management system. ISO 50001 certification was awarded following this audit.
Drilling work on the second tube of the Saverne TGV rail tunnel was completed on 25 February 2013.
Three Sotralentz Group subsidiaries worked on the project, through the manufacturing of the tunnel-boring machine’s shield on the premises of Sotralentz Métal Industries, the manufacturing of 700 tonnes of reinforcement cages (segmental linings) at Sotralentz Construction and the supply of Actibloc wastewater treatment plants for three construction site facility centres, including the one at Ernolsheim-Lès-Saverne, at which an Actibloc 100 PE (population equivalent) system made up of two double-skin tanks (i.e. a settling tank and a clarification tank), each with a volume of 35 cubic metres, were used.