The Christchurch City Council promised to upgrade 102 well heads within a year so it could stop chlorinating the city's water supply – but there are questions about whether any have yet been repaired to the standards required.
Councillors voted in January to chlorinate the city's water supply after experts warned of there was a low risk of contamination. The council authorised chlorination for up to 12 months while the work was done.
Councillors were told by council-owned company City Care, which examined the water supply in 2017, that 102 wells needed work to meet expert standards and provided timeframes for when it would be able to upgrade the 25 wells with the "highest potential risk". Read more