Watercare is increasing the price of water and wastewater in Auckland by 2.5 per cent.
The company announced the hike today, just days after Auckland Council voted for a rates increase.
It estimates the average household's combined water and wastewater charges will increase by about $1.75 a month from July1.
Watercare chief financial officer Brian Monk said the adjustment was necessary "due to the increased costs of service delivery and the need to invest in infrastructure to cater for Auckland's growing population".
"We are planning to spend $4.7 billion over the next 10 years on new water and wastewater infrastructure," he said.
Water prices will increase from $1.375 to $1.409 (including GST) per 1000 litres for all customers.
Watercare does not receive any funding from property rates paid to the Auckland Council, Mr Monk said.
"All the money we receive from customers goes into operating, maintaining and expanding our infrastructure. We do not receive any additional funding from Auckland Council or the government."