The Taumarunui Water Supply system provides potable water to approximately 2,911 properties within the Taumarunui community.
Where does my water come from?
Is my water treated?
- Finer Filtration
Water is passed through layers of sand and gravel to further remove impurities. Small water molecules pass through the holes between sand and gravel pieces and clean water is collected in a drain at the bottom. Unwanted solids get stuck in the holes, and are thus retained in the sand and gravel medium. This medium is washed from time to time to remove the unwanted solids.
- Ultra Violet (UV) irradiation
An upgrade completed in 2016 saw the addition of ultra violet irradiation to the scheme.
Water is further treated by exposure to ultra violet light. This kills any bacteria and viruses remaining in the water supply by destroying their genetic core (DNA). Is is also effective against many protozoa.
- Chlorination & pH Correction
The water is dosed with low levels of chlorine to kill off contaminants (bugs) in the reservoirs and pipes. pH correction is required to ensure effective disinfection with chlorine.
Where is my water stored?
Online monitoring through Supervisory Control and Data Acquisition (SCADA) provides information about the water treatment. This system checks that water parameters stay within set values for 24 hours every day and will alert the Plant Operator if it changes.