E/C.12/2002/11 Page 5 11. The elements of the right to water must be adequate for human dignity, life and health, in accordance with articles 11, paragraph 1, and 12. The adequacy of water should not be interpreted narrowly, by mere reference to volumetric quantities and technologies. Water should be treated as a social and cultural good, and not primarily as an economic good. The manner of the realization of the right to water must also be sustainable, ensuring that the right can be realized for present and future generations.11 12. While the adequacy of water required for the right to water may vary according to different conditions, the following factors apply in all circumstances: (a) Availability. The water supply for each person must be sufficient and continuous for personal and domestic uses.12 These uses ordinarily include drinking, personal sanitation, washing of clothes, food preparation, personal and household hygiene.13 The quantity of water available for each person should correspond to World Health Organization (WHO) guidelines.14 Some individuals and groups may also require additional water due to health, climate, and work conditions; (b) Quality. The water required for each personal or domestic use must be safe, therefore free from micro-organisms, chemical substances and radiological hazards that constitute a threat to a person’s health.15 Furthermore, water should be of an acceptable colour, odour and taste for each personal or domestic use. 11 For a definition of sustainability, see the Report of the United Nations Conference on Environment and Development, Rio de Janeiro, 3-14 1992, Declaration on Environment and Development, principles 1, 8, 9, 10, 12 and 15; and Agenda 21, in particular principles 5.3, 7.27, 7.28, 7.35, 7.39, 7.41, 18.3, 18.8, 18.35, 18.40, 18.48, 18.50, 18.59 and 18.68. 12 “Continuous” means that the regularity of the water supply is sufficient for personal and domestic uses. 13 In this context, “drinking” means water for consumption through beverages and foodstuffs. “Personal sanitation” means disposal of human excreta. Water is necessary for personal sanitation where water-based means are adopted. “Food preparation” includes food hygiene and preparation of food stuffs, whether water is incorporated into, or comes into contact with, food. “Personal and household hygiene” means personal cleanliness and hygiene of the household environment. 14 See J. Bartram and G. Howard, “Domestic water quantity, service level and health: what should be the goal for water and health sectors”, WHO, 2002. See also P.H. Gleick, (1996) “Basic water requirements for human activities: meeting basic needs”, Water International, 21, pp. 83-92. 15 The Committee refers States parties to WHO, Guidelines for drinking-water quality, 2nd edition, vols. 1-3 (Geneva, 1993) that are “intended to be used as a basis for the development of national standards that, if properly implemented, will ensure the safety of drinking water supplies through the elimination of, or reduction to a