Waimea Dam Project

The Waimea Dam is in the Tasman District approximately 40 km south of Nelson. McMahon Ltd was engaged to carry out the electrical design for the dam control, monitoring, and services, based on a stand-alone extra-low voltage (ELV) direct current power system. McMahon Ltd’s involvement with the Waimea Dam project demonstrates our capability in designing […]
Lower Huia PS Electrical Upgrade

Lower Huia Pump Station with four pumps operating, is capable of supplying 60 million litres per day (MLD) to Huia Water Treatment Plant (WTP). Huia WTP can provide up to 126 MLD or 24% of the average Auckland daily demand and is considered a critical water supply. Watercare identified risk in the power supply to […]
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
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
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