This is to certify that the contract for the following improvement:
Exterior (Airside) Storm Sewer for the Aero Structure Facility and Flight Test Hanger - Installation of sediment control fencing, the supply and installation of storm sewer pipes and manholes, a connection into an existing GTAA's 1650mm storm sewer, the removal and disposal of surplus sewer trench excavated material and restoration works.
To the above premises was substantially performed on: