CAC represents four French communes: Villers-Saint-Paul, Nogent-sur-Oise, Montataire and Creil. With 73,000 inhabitants, it is the second-largest agglomeration in Picardy.

CAC has been in charge of running the public drinking water and sanitation service since 1965. It owns these utilities, and has delegated operations to a single contractor up to July 2017.

On June 25, 2015, the local council discussed the delegation of drinking water and sanitation services, and decided to update the existing contracts.

CAC hired a consortium of project management assistants to implement this decision and help with procedures for selecting the future contractors.

– Financial expertise: Stratorial Finances

– Technical expertise: setec hydratec

– Legal expertise: R. Gianina


- Assist CAC up to the expiration of the existing contracts

- Facilitate the handover to the new delegations for drinking water, sanitation and rain water services

- Audit the legal, technical and financial aspects of the water and sanitation contracts for 2015, 2016 and Q1 2017

- Ensure a smooth handover to a biogas company for sewage management


Creil, Nogent-sur-Oise, Montataire and Villers-Saint-Paul conurbation community (North of Fance)

Key figures

-   29,577 residents
-   885,388m³ water consumed in 2014
-  253 km drinking water network
-  173 km waste water network
-  153 km storm water network
-  3 665 storm drains
-  53 sewage pumping stations
-  8 stormwater pumping stations
-  8 storm water ponds
-  2 water treatment plants (14,500 and 110,000 PE)

Period of services

February 2016 – July 2017

Key challenges