NPDC engaged Max Tarr to initially undertake a condition assessment of an older Rotoshear Milliscreen at their Waitara Wastewater Pump Station that had been out of service for a few years. We completed the inspection and provided a condition assessment and recommendations for bringing the screen back into service. Included in our recommendations were some improvements to be made to their 2 other newer Contrashear Milliscreens to get the incoming flows balanced and allow for easier maintenance on the sparge spray system. NPDC then engaged us to undertake our recommended works which included the improvements to the Contrashear Milliscreen.
The work comprises the following components: