Cambridge and Waterloo WWTP Operational Biosolids Storage

The Cambridge and Waterloo Wastewater Treatment Plants Operational Biosolids Storage Project involved the construction of two new biosolids storage facilities, each located within fully operational wastewater treatment plants.

The work was carried out concurrently at both sites and required detailed planning and coordination to maintain full operation of existing plant systems throughout construction. At each facility, NAC constructed two large biosolids storage tanks, a new control building, and completed process, distribution, and communications tie-ins to the existing plant infrastructure. Mechanical scopes included: the installation of new piping within the control building, yard piping to connect to existing biosolids facilities, pre-purchased jet mixing systems within the new tanks and a new sludge transfer pump system. Modifications to existing effluent and potable water services were completed to provide connections for the new buildings.

The new control buildings housed a basement-level pump room for process equipment, with all electrical, instrumentation, and control systems installations self-performed by NAC’s in-house trades.

NAC demonstrated our ability to deliver complex, multi-discipline upgrades under live plant conditions. This project is another example of NAC’s strength in delivering reliable, high-quality infrastructure in the water and wastewater sector.