This volume of the Guidelines for Drinking-water Quality explains requirements to ensure drinking-water safety, including minimum procedures and specific guideline values, and how those requirements are intended to be used. The volume also describes the approaches used in deriving the guidelines, including guideline values. It also includes fact sheets on significant microbial and chemical hazards.
WHO (2006): Guidelines for Drinking-water Quality. FIRST ADDENDUM TO THIRD EDITION. Geneva: World Health Organization (WHO) URL [Accessed: 19.01.2011]