The public drinking water supply is the cornerstone of our public health. The health benefits of a wholesome supply of tap water are demonstrable from the promoting proper hydration to addressing the challenges increasingly being caused by obesity in the developing world. The role of water suppliers in public health protection should not be understated. Part of this is by meeting standards set by legislation and regulation but it is also important to maintain consumer confidence in the water that they are provided with. Whilst water suppliers can provide drinking water meeting the highest water quality standards the benefits to public health are only realised if water is consumed by consumers. By striving to improve on existing performance whilst adapting to future challenges the water industry will be able to maintain the confidence of consumers.