We are temporarily treating Christchurch's drinking water with chlorine while we upgrade our water supply network. Temporary chlorination provides an extra level of protection against waterborne illnesses.
Sign up to receive water supply updates
Where we have chlorinated
Tap water in Christchurch city is still safe to drink. The quality of the groundwater remains excellent, and we test it daily to ensure it is free of bacterial contaminants.
At some pump stations, we maintain a low level of residual chlorination in agreement with the Ministry of Health, while we work to improve the water supply network. A few below-ground wells remain, and that risk is mitigated through a higher level of chlorine at the pump station supplied by those wells – but we minimise their use as much as possible.
If we detect issues anywhere in the network, we may temporarily increase chlorine levels as an extra safety barrier to protect public health.
For more information
You can email specific questions to firstname.lastname@example.org or call 03 941 8999 or 0800 800 169.