Where does my water come from?
Water for the National Park water supply is taken from the Mangahuia Stream, located in the Tongariro National Park off State Highway 47.
Is my water treated?
Where is my water stored?
Treated water is stored within the National Park reservoir (500m3), on State Highway 47 and pictured below.
Online monitoring through Supervisory Control and Data Acquisition (SCADA) provides information about the water treatment, such as chlorine and turbidity. This system checks that water parameters stay within set values for 24 hours every day and will alert the Plant Operator if anything changes.
Treated water is piped from the storage reservoir to National Park township. The National Park Water Supply reticulation network consists of 15km pipeline. Most pipes are 100mm or 150mm in diameter and are made of plastic (uPVC). The entire system is gravity fed.
Flow through the scheme is shown in the figure below.