As a subconsultant, SI Engineering, PC (SIE) provided electrical inspection services on this project, which involved upgrading the existing facility to reduce the amount of nitrogen discharged by the plant by early 50%. The $237 million project included the installation of Biological Nutrient Removal technology, which required significant upgrades to the plant’s electrical substation, generators, aeration and sludge pumping systems. This included the installation of sluice gates, mixers, diffusers, froth hoods, and surface wasting pump stations, as well as the stabilization of the aeration tanks’ four (4) batteries. In the plant’s air process system, two (2) new blowers were installed and the remaining four (4) were rehabilitated.
SIE was responsible for inspection of the installation of electrical conduits and cable trays, oversight of the contractor’s laying power and control cables, and inspection of the construction of generator facilities. SIE also inspected the installation of various amperage transformers. SIE staff attended on-site meetings to resolve conflicts, developed field modifications of the plans to avoid project delays, and assisted in the evaluation and pricing of change orders.
Tasks performed include the preparation and maintenance of daily civil inspection reports that indicated the contractor’s work activities and progress of the contract. SIE also tracked change orders, crew size and composition, weather, equipment utilization, and all other information relevant to the execution of the work. SIE inspection staff were responsible for maintaining payment records, including verification of submittals and partial payment requests, maintaining as-built drawings of the work, and indicating deviations from the contract or shop drawings.
