The Whanganui District Council is encouraging customers and ratepayers to take part in the first comprehensive national water survey.
The survey is being run by not-for-profit Water New Zealand and aims to gauge attitudes and concerns about water issues including sustainability and quality, and how to manage ageing infrastructure and increasing urbanisation.
Whanganui's water supply has a Ministry of Health grading of 'Aa', which means it is "completely satisfactory" in terms of treatment and distribution.
Council's Senior Engineering Officer Dave Rudolph said the council had maintained an Aa grading since 2011.
Mr Rudolph said people could be confident in the quality of drinking water and the low risk of contamination and risk to supply.
The common concerns raised about water in Whanganui include chlorination (smell and taste), hard water and low pressure.
"Whanganui water concerns tend to focus on water quality and it would be helpful to find out what other matters are important to water supply users," Mr Rudolph said.
Whanganui's city water supply comes from four bores - three at Kai Iwi (hard water) and one at Aramoho/Brunswick, which has soft water.
Hard water has a high mineral content which can cause calcium build-up.
"Survey results will give us a comprehensive snapshot of where possible water quality issues exist. Customer engagement will give a better understanding of any future needs and help us to improve services to our customers."
Water New Zealand Chief Executive John Pfahlert said survey results would be available on a region by region basis with analysis designed to help inform councils on the delivery of services to best meet customer needs.
The survey is available at www.nzwatersurvey.co.nz and will run for about six weeks.
You can also enter a draw to win $2000.
The findings are expected to be presented at the Water New Zealand Conference in September 2017.