Find out how we provide Hutt City residents with safe and reliable water.
We buy treated water from Greater Wellington Regional Council (GWRC) and distribute it to you via our network of:
- 685 km of underground pipes
- 24 storage reservoirs
- 13 pumping stations.
Wellington Water supplies over 140 million litres (ML) of water per day (on average) to Upper Hutt, Lower Hutt, Porirua and Wellington.
The supply serves a resident population of about 400,000 which means we provide about 358 litres per resident each day, or 3-4 bathtubs each.
Not all of this water is used in homes. City council estimates show that households use a bit over 60% of our total supply. Other users include industry, businesses, schools, hospitals, the fire service and councils.We also make sure it meets the Ministry of Health’s drinking water standards.
|Area of Supply||Source of Water||Is Chlorine permanently added?||Is Fluoride added?||Current MOH NZDWS* Grading|
|Stokes Valley, Manor Park, Haywards||Kaitoke (Headwaters of Hutt River)||Yes||Yes||Aa|
|Wainuiomata||Wainuiomata (Headwaters of Wainuiomata and Orongorongo Rivers)||Yes||Yes||A1a|
|Hutt Valley (excluding Stokes Valley, Manor Park) and Eastbourne||Hutt Valley Artesian System Lower Hutt||Yes, at Waterloo treatment plant||Yes||Bb|
|Petone, Korokoro||Hutt Valley Artesian System Lower Hutt||Yes, at Waterloo treatment plant||No||Bb|
- A1a - Completely satisfactory, negligible level of risk, demonstrably high quality
- Aa - Completely Satisfactory, Extremely low level of risk
- Bb - Satisfactory, Very low level of risk
- Cc - Acceptable, Low level of risk
Our water supply standards and commitments
We aim to provide you a first-rate and uninterrupted water supply service, and to meet the following goals:
To maintain our commitment to water safety and to maintain a safe water supply that meets New Zealand Drinking Water Standards, the water supply needs to receive at least a Bb (satisfactory, very low level of risk) grading from the Ministry of Health.
In August 2017, in response to concerning levels of bacterial indicators in the aquifer, the GWRC approved the ongoing chlorination of Lower Hutt drinking water.
Wellington Water sought advice from independent experts on the results of investigations into the aquifer. They advised that relying on the aquifer’s natural filtration processes is unlikely to be sufficient to manage potential public health risk.
Ultra Violet (UV) treatment
As well as continuous chlorination, Ultra Violet (UV) units are used at Waterloo Water Treatment Plant. UV treatment provides another layer of protection against potentially harmful organisms in our water supply.
Most of Lower Hutt's drinking water supply has added fluoride, except for Petone and Korokoro which have a long history of unfluoridated water.
|Connection fees||2021/2022 Fees||2022/2023 Fees|
|Water connection fee||$100.00||$120.00|
|Fee for use of water by builders on unmetered industrial and commercial sites||$120.00||$120.00|
|Normal users||2021/2022 Charges||2022/2023 Charges|
|Up to 100,000 cubic metres||$2.60 per cubic metre||$2.68 per cubic metre|
|Over 100,000 cubic metres||$1.86 per cubic metre||$1.92 per cubic metre|
|Water supplied by hydrant||2021/2022 Charges||2022/2023 Charges|
|Per cubic metre||$2.60||$2.68|