7 June 2024
OIA IRO-668
Adam Irish
[FYI request #26368 email]
Tēnā koe Adam
Official information request regarding expenditure on pipes
Thank you for your request transferred from the Wellington City Council on 15 April 2024
asking for the fol owing:
1. How much money has been spent on Wel ington water pipes in each year over the last
5 years.
2. Additionally I request if their has been any upgrades or increase in storage capacity
over the last 5 years that could have affected water pressure. What has been the
average water pressure across the water network each year for the last 5 years.
I apologise for the time it has taken to respond to your request.
Your request is responded to in accordance with the Local Government Official Information
and Meetings Act (LGOIMA) 1987 and is enclosed.
You have the right to seek an investigation and review by the Ombudsman of this decision.
Information about how to make a complaint is available at
www.ombudsman.parliament.nz
or freephone 0800 802 602.
If you wish to discuss this decision with us, please feel free to email us at
[email address]
Nāku noa, nā,
Susannah Cul en
Group Manager
Network Development and Delivery
Appendix
1. How much money has been spent on Wel ington water pipes in each year over the last 5
years.
The folowing table details the total expenditure; Capital and Operational (maintenance,
repairs, renewals and upgrades) for drinking water pipes owned by Wel ington City
Council that are in the Wellington Water pipe network1:
2020
2021
2022
2023
2024 2
Total spend $000:
25,014 15,944 18,856 22,491 18,607
Please note the fol owing:
1 Wel ington Water pipes are classified as the drinking water, stormwater and wastewater
pipes owned by Wel ington City Council, Porirua City Council, Upper Hutt City Council, Hutt
City Council, South Wairarapa District Council but not the bulk water network owned by
Greater Wel ington Regional Council.
2 The financial year is 1 July – 30 June and this information is reported as at end of March
2024
2. Additionally I request if their has been any upgrades or increase in storage capacity over
the last 5 years that could have affected water pressure. What has been the average
water pressure across the water network each year for the last 5 years.
New storage reservoirs constructed in the last five years have not increased system
pressure, as they have been constructed to match the geographical elevation of existing
reservoirs.
Wellington Water has an ongoing program of pressure management improvements to
reduce areas of high pressure to within the target level of service (25 – 90m pressure). The
average supply pressure in the Wel ington City Council water supply network is around
65m.