Skip to main content
  1. Home
  2. ...
  4. Water supply
  6. Quality and monitoring

Water supply quality and monitoring

Quality, monitoring and analysis of Christchurch water.

Water quality and monitoring

A typical average chemical (naturally occurring) analysis of Christchurch water.

Water chlorination

Water chlorination is the process of adding chlorine to the water supply to keep it safe from harmful bacteria. Sodium Hypochlorite is used in Christchurch.

Meter readings

The meters are read for the purpose of water conservation to determine if there is excessive water usage and identify if there are any leaks.

Related news

Little River boil water notice lifted

The boil water notice affecting Little River’s water supply zone has been lifted.

20 Feb 2026

Boil water notice lifted

The boil water notice affecting Christchurch’s Rawhiti water supply zone has been lifted.

16 Feb 2026

Prepare for heavy rain overnight Monday

Residents are encouraged to prepare for rain predicted to impact Christchurch and Banks Peninsula from later today, with the heaviest period expected overnight from Monday to Tuesday.

16 Feb 2026

Takiuru ki ā mātou ratonga
Log in to our services

Back