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Quality Roading & Services (QRS) Wairoa
CATEGORY 2: Projects with a value between $1 million and $10 million
Keeping a beach community clean
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The Wairoa District Council had central government funds to provide a new community sewerage scheme. Quality Roading and Services (QRS) Wairoa was awarded some of the contracts. The Wairoa District Council looked at a range of design options for a new sewerage scheme for its Mahia Beach community and settled on a pressure sewer with on-site Septic Tank Effluent Pump (STEP) facility. A contract was tendered and awarded for detailed design, and subsequently the following six physical works contracts were tendered and awarded: Treatment Ponds Earthworks; Rising Main CATEGORY Construction; Pump Station Construction; 2 Community Reticulation; Private Property STEP Installation of 385 properties; and Irrigation System Design & Build. Quality Roading and Services (Wairoa) picked up both the Community Reticulation and Private Property STEP Installation contracts. The contract value was $2 million and the project started in February 2013 and was completed in June 2016 on budget.
The Reticulation Contract involved installing 10,000 metres of pressure pipe around Mahia, while the Private Property STEP Installation involved installing STEP systems in 385 Mahia private properties. The work also involved installing 5200 litre concrete tanks and fibre glass tanks, gravity drainage piping (cape plumbing), outlet pressure pipe, decommissioning of the existing septic tank and the power connection to the STEP pumps (town and country electrical).
“The project faced many challenges with planning from the commencement to the completion of each tank. We had 385 properties where the owners were required to register for the scheme at a significant cost to each property owner,” says QRS.
“Prior to letting the On Lot contract, council staff visited each property and completed an assessment of each sewerage system, followed by meetings with each owner to determine the best solution for their property.
“This included how the existing system would be decommissioned, where the new STEP tank would be positioned, if they had existing clay drainage pipes which had to be replaced with PVC, and how the power connection to the pump would be made.” l
