Mandeville Boil-Water Notices Stay in Place



 Media Release

Following further tests at the weekend Waimakariri District Council staff have maintained the boil water notice for residents on the Mandeville water supply.

A boil drinking water notice was put into effect on Fri 24 August after testing showed the presence of e-coli. Precautionary measures were put in place including the boil water notice, increasing the chlorination level in the supply to improve disinfection, and a switch to the supply’s No. 1 well – a deeper, but lower yield well.

Additional testing of well No 2 last week for the presence of giardia and cryptosporidium showed it to be clear of those organisms. Further tests last week and over the weekend have revealed no e-coli presence in the water in the No. 1 well. Staff will monitor results over the coming days prior to deciding whether to lift the boil water notice.

Despite the water supply being disinfected by chlorination staff have kept the boil drinking water notice in place as a further safety precaution. Should there be any change to that, information on the Council website will be updated daily in the interim.

The boil water notice will stay in place until at least later this week. Notification of any lifting of the boil drinking water restriction will be made through radio stations Compass FM, MORE FM and Newstalk ZB, on the Council’s website (, through local papers and on the Council’s social network sites at and


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