The evidence for the need, safety and benefit of chlorination of public drinking water is compelling provided accepted World Health Organisation guidelines are followed.
The ill effects from drinking infected drinking water are often unrecognised and cause disability for long periods of time. On this point alone, chlorination is cost-effective.
In my view, much of the ill-informed concerns would have been averted if the normal legislative process had been followed and Parliament given the opportunity to debate the pros and cons on behalf of the community.
Invercargill, New Zealand