The work under this Contract includes but is not limited to the rehabilitation of gravity sewer and stormwater mains by the installation of lining systems to restore structural integrity, prevent infiltration and exfiltration, eliminate root ingress and/or restore the hydraulic capacity of the mains.
The gravity sewer mains to be rehabilitated will be from a nominal diameter of 150mm up to a maximum of 600mm. The stormwater mains to be rehabilitated will be from a nominal diameter of 750mm up to a maximum of 1050mm.

The scope of works includes but is not limited to:

• The design, supply and installation of structural lining systems for the full length between maintenance holes
• Lining systems used to locally patch an isolated defect
• Junction sealing
• Associated civil works
• Management of flows within the mains
• Consultation with nominated parties, property owners or residents
• Work as Constructed information including CCTV
• Restoration of disturbed surfaces
• Testing and inspection works.

All work is to be undertaken with as little disruption as possible to the operation of the Principals sewer and stormwater systems and customers.