PENNY SIMMONDS (National—Invercargill): Thank you, Mr Chair. I am interested also in taking the questioning of my ACT colleague Mark Cameron a little further. When the Minister replied that the fluoridation was only for reticulated supplies and not private supplies, and indeed the Water Services Act has the "last person standing" clause in it that requires that if a water supply is going to be abandoned by private suppliers, then, in fact, the local authority does have to take up the provision of that supply. So it may well be that the rural water supplies that my colleague was referring to might fall within this, having been taken over by a local authority.