France – Architectural services for building extensions – Marché de maîtrise d'oeuvre pour l'extension de l'usine de dépollution des eaux usées de SILOE (actuellement 234 000 EH) sur la commune d'Annecy

This contract concerns the design and supervision of the works to be carried out as part of the extension of the SILOE UDEP: - to address the challenges related to protecting the receiving environment in a context of decreasing low flow, - taking into account future treatment capacity needs (by 2035 and planning for the 2050 deadline) - by analyzing new discharge standards in consultation with State services and in application of the DERU II - by proposing an overall vision of the solution by 2050 (AVP level) The extension of the SILOE UDEP S2 is the first phase of a larger project by 2050 (S3). This first phase involves creating a new pollution control unit (S2) on plots adjacent to the existing UDEP (S1) to enable, on the scale of the existing UDEP and this extension, to treat the effluents received by 2035/2050. The second phase of works (outside the scope of the present design contract) will involve the rehabilitation of the existing UDEP (S1) and the creation of new structures on S2 and on other adjacent plots to treat all the effluents received by 2050. This extension includes: - The construction of the S2 treatment infrastructure works (phase 1); - The construction of a New Operating Building (NBE); - The integration of constraints for S2 in relation to the SILOE S3 extension (phase 2). The design team must plan the location for certain devices that will only be installed in phase 2, integrate the load of phase 2 from phase 1 for certain works, design a station with a hydraulic profile capable of accepting new treatment steps, etc. This program requires an overall vision, both to organize the phasing of the treatment infrastructures and to coordinate the construction of the new operating building (NBE) with the implementation of the treatment infrastructures. The design contract includes basic missions (EP, AVP, PRO, AMT, VISA, DET/OPC, AOR) and additional missions listed in the DCE.