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.


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Burwood wastewater pipe replacement has begun

Work to replace ageing wastewater pipes along Mairehau Road is now underway.

3 Feb 2026

Trial aims to improve stormwater quality

A one-year trial to help stop zinc runoff getting into waterways is underway as part of Christchurch City Council’s commitment to improve urban stormwater quality.

23 Jan 2026

Smart meters project underway

Christchurch City Council has started installing smart water meters in parts of Christchurch and Banks Peninsula, prioritising areas where no water meters are currently in place.

22 Jan 2026

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