visuel générique projet

Joint operations of the EVRY and EXONA WWTPs : 340,000 P.E.

Missions

Project management for the award of a service contract to operate a wastewater treatment plant including the Evry (91) and EXONA (91) WWTPs. Shared wastewater treatment plant at Evry (250,000 p.e.) – activated sludge and membranes, methanisation + EXONA (96,000 p.e.) – MBBR and biofilters, methanisation, composting: 340,000 p.e. in total, including a shared wastewater treatment plant and biomethane injection.

o Drafting of the tender documents, analysing bids and finalising the contract,
o Contradictory inventories of all equipment (operating condition, obsolescence, costing of renewals, etc.) and of the GC at the Evry, EXONA and Le CoudrayMontceaux WWTPs,
o Project management for SPL Confluence’s takeover of the concession contract for the operation of the EVRY and EXONA and Le Coudray-Montceaux WWTPs,
o Operational monitoring,
o Framework agreement in progress: capacity study,
purification strategy, etc.

By decision of the SIARCE trade union committee dated the 12th of December 2019 and of the CA GPS community council dated the 17th of December 2019, these two public establishments agreed to create a Public Local Company (SPL).

This company was registered with the ÉVRY Trade and Companies Registry on the 22nd of April 2021. The purpose of the SPL is to manage and operate the wastewater treatment plants on the EXONA ÉVRY site in a coordinated and mutualised manner, and to design, build and operate a
technical and commercial facility to recover energy from the by-products of wastewater treatment on the site.

Several projects have been carried out for SPL Confluence since 2021:

o AMO GPS/SIARCE, report on the choice of wastewater treatment management method,
o Project management for the implementation of the contractualisation with SPL Confluence as a concession operator,
o Project management assignment for SPL Confluence to take over the concession contract for the operation of the EVRY, EXONA
and Coudray-Montceaux WWTPs by SPL Confluence,
o AMO SPL Confluence for the implementation of the operation of wastewater treatment plants under a Service provision contract.

Joint inventory:

During the audit, we carried out a complete inventory and and diagnosis of the equipment at the 3 WWTPs the MOA, the incoming operator and the outgoing operator.

Tasks performed:

o Manual and supervised visual inspection of each piece of equipment
o Rating of each piece of equipment according to an
obsolescence scale
o Costing of all obsolete equipment,
out of order or faulty

Key figures

Coût du Projet : 111 375 €

Also discover in "Water & Wastewater"

Establishing the urban rainwater management master plan for the Thonon Agglomeration

Sanitation Master Plan and wastewater treatment zones EU and EP

Grand Paris South Agglomeration Community Drinking Water Supply Master Plan