NZ 'rolling dice' with untreated water - Canadian expert

A visiting Canadian water scientist says he is at a loss to understand why all drinking water in New Zealand is not treated to avoid the risk of illness. Dr Steve Hrudey from the University of Alberta attended the Water New Zealand Conference in Hamilton. He studied an outbreak of E coli in the water supply in Walkerton, Ontario in 2000 when seven people died, and the campylobacterosis outbreak in Havelock North in August last year which affected many people. See the RNZ story here.