Warriewood Odour Management Project

Design and construct Odour Control Facility

Warriewood STP is located in a valley close to a main arterial road (Pittwater Rd) at Warriewood. The STP produces a high quality effluent treated to “secondary” standard using a conventional biological (activated sludge) process. The effluent is disinfected using UV radiation and discharged by gravity through a cliff face ocean outfall. The plant was constructed in the 1970s and has been subject to various minor upgrades over the subsequent years. The STP has a history of odour complaints.

The aim of this project was to design and construct new odour mitigation works and improve the operation of the existing works such that surrounding developments would not be adversely impacted by odours from Warriewood STP. The Odour Management Project comprised plant wide collection and treatment of odorous discharges, including design, fabrication, delivery, installation and testing.

New switchroom, all power supply and reticulation system, control and instrumentation

David Power Pty Ltd was responsible for all electrical works for this Contract – the investigation, design, supply, installation, testing, commissioning of WAE drawings and training of operating and maintenance system staff. The electrical works included a new switchroom, HV transformer and switchgear, all power supply and reticulation system, control, instrumentation, PLC and SCADA hardware.  This project was delivered under budget and involved installation of new plant and modifications to existing infrastructure whilst the plant remained in operation at all times.