E/C.12/2002/11 Page 13 (c) To ensure physical access to water facilities or services that provide sufficient, safe and regular water; that have a sufficient number of water outlets to avoid prohibitive waiting times; and that are at a reasonable distance from the household; (d) To ensure personal security is not threatened when having to physically access to water; (e) services; To ensure equitable distribution of all available water facilities and (f) To adopt and implement a national water strategy and plan of action addressing the whole population; the strategy and plan of action should be devised, and periodically reviewed, on the basis of a participatory and transparent process; it should include methods, such as right to water indicators and benchmarks, by which progress can be closely monitored; the process by which the strategy and plan of action are devised, as well as their content, shall give particular attention to all disadvantaged or marginalized groups; (g) To monitor the extent of the realization, or the non-realization, of the right to water; (h) To adopt relatively low-cost targeted water programmes to protect vulnerable and marginalized groups; (i) To take measures to prevent, treat and control diseases linked to water, in particular ensuring access to adequate sanitation; 38. For the avoidance of any doubt, the Committee wishes to emphasize that it is particularly incumbent on States parties, and other actors in a position to assist, to provide international assistance and cooperation, especially economic and technical which enables developing countries to fulfil their core obligations indicated in paragraph 37 above. IV. VIOLATIONS 39. When the normative content of the right to water (see Part II) is applied to the obligations of States parties (Part III), a process is set in motion, which facilitates identification of violations of the right to water. The following paragraphs provide illustrations of violations of the right to water. 40. To demonstrate compliance with their general and specific obligations, States parties must establish that they have taken the necessary and feasible steps towards the realization of the right to water. In accordance with international law, a failure to act in good faith to take such steps amounts to a violation of the right. It should be stressed that a State party cannot justify its non-compliance with the core obligations set out in paragraph 37 above, which are non-derogable. 41. In determining which actions or omissions amount to a violation of the right to water, it is important to distinguish the inability from the unwillingness of a State