PROJECT: On 6 March 2023, a link to the New Lynn Pump Station isolation valve was severed causing the valve to close while the main was at full flow. The transient pressure generated blew out gaskets in flanges and uprooted the pipe support column in the line downstream from pump #1. MTL ROLE: MTL was [...]
PROJECT: Provide commissioning management services for the Waikato 50 Water Treatment Plant Project. MTL ROLE: MTL were engaged by Watercare Services Ltd, to provide commissioning management services for this fast track project, involving multiple process areas, contractors, suppliers and designers. Within the fast-track nature of this project, this was a challenging role, coordinating these different [...]
PROJECT: Waikato 50 Raw Water Intake Floating Pump Station from concept to reality. MTL ROLE: MTL were engaged by Watercare Services Ltd, to provide the design, construction monitoring and commissioning of the raw water intake floating pumping station of the Tuakau Waikato 50 Water Treatment Plant. This fast-track project was part of the River to [...]
PROJECT: Te Kauwhata WWTP Upgrade Phase I & II. MTL ROLE: MTL were engaged by Lutra to provide the mechanical design of the Te Kauwhata WWTP upgrade, delivering New Zealand’s first Nitrogen removal membrane aerated biofilm reactor (MABR) plant. The program of works has been fast-tracked and is part of a three phase process to [...]
PROJECT: Replacement - End of Life Surge Vessel at Te Kauwhata Pump Station. MTL ROLE: MTL managed the replacement of a 5.5m3 surge vessel protecting the Te Kauwhata 450kW pumping station and 1.8km AC water main to the header tank. The station provides up to 22,900m3 per day of untreated water to the surrounding farming [...]
PROJECT: 500m3 Sludge Tank Upgrade. MTL ROLE: Two 250 cubic metre capacity tanks were required as part of the sludge handling upgrade works at Watercare Services Ltd, Ardmore Water Treatment Plant. MTL undertook investigations to establish the most suitable concept design, prepared and completed the detailed design of the stainless steel tanks. Elevated structural steel [...]
PROJECT: Two 150m3 Sludge Thickener Balance Tanks. MTL ROLE: Watercare required two new in ground sludge balance tanks to be constructed at their Ardmore Water Treatment Plant. The site for the tanks, located on steeply sloping and poor ground, posed significant design challenges. MTL undertook the detailed design of the reinforced concrete water retaining structures [...]
PROJECT: Mobile CO2 Dosing Skids for potable water pH control. MTL ROLE: Watercare identified the need for two mobile CO2 Dosing units for temporary deployment to ensure potable water pH compliance with NZDWS as new concrete lined steel watermains are entered into service. MTL provided ‘fast-track’ process and mechanical design, project management and commissioning services [...]
PROJECT: 260 MLD A Block Filtered Water UV Disinfection for Ardmore Water Treatment Plant. MTL ROLE: MTL led the design of a 260 MLD UV Disinfection system retrofit of the A Block filtered water stream (~70% of maximum plant production) Three new 33% duty Wedeco K Series K143 reactors are located inside the existing Chemical [...]
PROJECT: 8 MLD Treated Water Pump Station. MTL ROLE: The Warkworth Wells Water Treatment Plant is designed for future growth with initial production of 3 MLD with staged increases to 8 MLD average daily flow (ADF). MTL undertook the treated water pump station and network tie in design to accommodate the initial capacity while providing [...]
