Open invitation to tender, deadline 25.10.2012, for excavation, equipment and maintenance of shafts to access underground cavities mainly in districts of Cambrai, Lille and Valenciennes. Contract to commence 12/2012, duration 48 months. Contact Conseil General du Nord in Lille, bureau B368, tel +33 3597350-74, fax -59. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=300325-2012. 39/12.