Kawakawa Bay Wastewater Treatment Plant

The Kawakawa Bay wastewater treatment plant and vacuum pump station replaced an aging sceptic tank system that caused considerable pollution to the Kawakawa bay shore front and groundwater. This was the first in New Zealand to use a vacuum waste water collection system. McMahon Involvement Complete electrical, control and instrumentation design Software management Installation supervision Site […]
Tamavua and Waila WTP Suva

Tamavua and Waila Water Treatment Plants Suva Fiji McMahon Involvement Project investigation, scoping and cost estimates Upgrade of the Tamavua and Waila water treatment plants and Waila pump station Electrical, Control and Instrumentation design Installation project management Installation inspections
Te Aroha Wastewater Treatment Plant

Electrical, instrumentation and control design for the upgrade of the Te Aroha Wastewater Treatment Plant McMahon Involvement Electrical, control and instrumentation design Control software and SCADA screens Equipment and installation specifications Installation supervision Site commissioning
Hamilton Water Treatment Plant

Electrical, instrumentation and control design for the upgrade of the Hamilton Water Treatment Plant. This included E,I and C works for the new granular activated carbon (GAC) and ultraviolet (UV) disinfection plants. McMahon Involvement LV and MV electrical design Instrumentation and control system design Electrical installation project management Installation supervision Commissioning
Tokaanu and Rangipo Power Stations

Tokaanu and Rangipo hydro power stations are part of the Tongariro Power Scheme in the central North Island of New Zealand. Both stations are owned and operated by Genesis Energy. McMahon Involvement McMahon were engaged to produce the conceptual and detailed hardware design for the control system upgrade of the Rangipo and Tokaanu power stations. […]
Rarotonga Power Station

Since 1998 McMahon Engineering Consultancy Ltd and now McMahon Ltd provide ongoing technical support to Te Aponga Uira.
Ardmore WTP Disinfection Plant

Electrical, instrumentation and control design for a new ‘greenfield’ CL2 gas dosing disinfection system at the Watercare Ardmore Water Treatment Plant. McMahon Involvement Hardware design (electrical, instrumentation and control) Installation project management Installation supervision Commissioning
Ardmore WTP DeltaV Rollout

The project was the replacement of the PLC control system for chemical and plant services at the Watercare Auckland Ardmore water treatment plant with a new Emerson DeltaV Distributed Control System (DCS) platform. McMahon Involvement Total hardware design Full drawing update Installation project management Installation supervision Commissioning