Postponed from 19.05.2015 to 12.06.2015 the deadline of the open invitation to tender for the construction of the future tailrace tunnel (1,120 m-long and 5 m-diameter) for the WWTP at Seine Aval, suburbs of Paris. Contract duration seven months from award. Contact Siaap, Paris, tel +33 144754426, fax +33 144754415, e-mail marchesiaap@siaap.fr. For more, visit http://marchespublics.siaap.fr/demat. Visit http://ted.europa.eu/udl?request=Seek-Deliver&language=en&docid=146608-2015. 18/15.