Client: Water Corporation

Year: 2004

Description:
The Mundaring Chlorination Facility is located at Mundaring Weir, approximately 35km east of Perth.

Leicon Notley was commissioned to relocate selected areas of the existing plant, and design, manufacture, supply, construct, install, test and commission a temporary chlorine storage facility to connect to the existing chlorine gas dosing infrastructure.

Particular features included the 350m long chlorine gas vacuum transport lines and the installation of the associated duct system into the difficult granite terrain at the dam.

Client: Robe River/ Rio Tinto

Year: 1990

Description:

Leicon Notley was awarded two separate contracts for the dewatering borefields at Mesa J. Both contracts comprised the design and installation of 33 kV power reticulation with a transformer, earthing and LV supply for each bore as well as the radio telemetry-controlled bore pump control system and all of the valving and interconnecting PE pipelines and discharge lines.

The first contract was for the permanent dewatering around the proposed pit, and the second was for the dewatering of the pit itself during establishment. There were a total of 16 substations and pump installations.

Client: Water Corporation

Year: 2008

Description:

This project was added to the Automation and Centralisation Alliance’s scope of work due to it’s critical and urgent nature. The $8 million 10-Mile Brook Dam Treatment Facility at Margaret River required the installation of ultrafiltration equipment on the existing pumpback station to the town water supply. The plant was required to treat 4ML of raw water from the Margaret River per day, and then to discharge the treated water to the 10-Mile Brook Dam.

Overall, the project comprised:

• upgrade of the existing pumpback station
• modification and install of UF pant building, including all associated civil works
• installation of the membrane filtration plant, including associated HV and UV electrical and control equipment, balancing storage, pumps, pipelines, chemical treatment facilities and wastewater disposal facilities.
• upgrading of the existing UV installation to provide duty/ standby capacity
• SCADA and security upgrades as required.

Leicon Notley was subsequently asked to increase the plant capacity by 25%; this was designed, constructed and commissioned in 7 weeks.

Client: Minproc Engineers

Year: 1992 and 1995

Description:
Leicon Notley undertook the piping packages for gold mine treatment plants in Ghana at Iduapriem and Sansu. Iduapriem was a conventional CIP plant carried out in the Ghanian Jungle.

The Sansu plant was unique by virtue of its size and the major stainless steel piping component, necessitated by the acidic BIOX microbiological treatment process adopted for this historically major mine. The challenges of the extremely tight time frames and the very special logistics of working in such a remote and underdeveloped environment were successfully met.

Client: Veolia

Year: 2003-04

Description:

Working for Veolia Water, Leicon Notley was subcontracted to fabricate the six reverse osmosis skids. The scope of the project included:

• fabrication and surface treatment of structural skid frame for the RO modules
• fabrication of all high pressure stainless steel pipework
• fabrication of all ABS pipework for the units
• shop assembly of all completed components
• pressure test of the completed skid units

All work was completed at Leicon Notley’s Balcatta workshop before being delivered to the Kwinana site.

Client: Minproc Engineers

Year: 1991

Description:

This major upgrade required the massive fabrication and installation of an almost total replacement of the rubber lined piping (to typically 500NB). This was Leicon Notley’s first major ‘brownfields’ job and one that demanded precise fabrication and installation of the rubber-lined piping.

Client: Water Corporation

Year: 2002

Description:

Originally two separate tenders, both were successfully won to design, supply, fabricate, and install and commission of fabricated Sodium Hypochlorite dosing plants in the metropolitan area, and to provide the associated site services.

Works consisted of detailed design, supply, fabrication, installation, construction, testing and and commissioning of seven prefabricated Sodium Hypochlorite dosing systems with ancillary inlet and outlet chlorine analyser facilities and 4 stand-alone outlet analyser facilities.

The process buildings were manufactured in Leicon Notley’s Balcatta premises and then transported to site. The second contract provided all of the associated works necessary to incorporate the dosing system within the water system.

Client: The Water Corporation of Western Australia

Years: 2005 – 2011

Description:
The Automation and Centralisation Alliance (A+C) was established in 2005 between the Water Corporation of Western Australia, GHD and Leicon Notley. The express purpose of the Alliance is to Automate and Centralise (A+C) a range of Perth and surrounding areas ground water treatment plants and borefields, to enable the various locations to be operated from a central operations and control function.

The project included all brownfields work required to upgrade and facilitate the automation of the existing infrastructure. This incorporated significant new PLC/ SCADA design, configuration and implementation, security works, electrical and mechanical engineering upgrades, installation of new or upgraded automated analysers, dosing and sample systems. One hundred and twenty-five bores were updated, including the headworks, electrical, instrumentation, radio communication and telemetry systems.

A special, fundamental imperative was the successful interfacing with stakeholders, especially Operations and Maintenance. Leicon Notley acted as the implementation manager and provided the Alliance management, as well as construction and commissioning and handover manager. The original scope was doubled due to the success of the Alliance.

Client: Water Corporation

Year: 2003

Description:
The project involved the upgrading of the Denmark Water Treatment Plant in the south of Western Australia to a capacity of 180 m3/h.  This Contract covered all civil, mechanical, electrical, instrumentation and control works associated with the upgrade.

As the only source of water to the town, the plant continued to provide potable water throughout the construction period via the successful implementation of a five stage progressive upgrade and changeover process.

Client: Placerdome

Year: 1988

Description:
Granny Smith Gold Mine Pipelines & Water Supply. With 34km of PE pipelines (typically, the then very large diameter of 450OD). Granny Smith was one of the major PE pipeline jobs to that date. The work was extended to include the fit-out and electrical system for the associated borefield.