A/HRC/42/47/Add.2 (b) Prioritize targeted monitoring of hazardous substances, such as pesticides in water sources. 79. Concerning affordability, the Government should: (a) Incorporate the Special Rapporteur’s guidelines for restructuring water and sanitation tariffs (paras. 65–66 above); (b) Monitor the reasons for disconnecting water services and the subsequent measures taken; (c) Set up legal mechanisms to prohibit the practice of disconnecting water due to an inability to pay. 80. Concerning access to water and sanitation for specific groups, the Government should: (a) Ensure that Orang Asli access continuous and sustainable water and sanitation services by improving the capacity of the Department of Orang Asli Development, among other measures; (b) Establish a harmonized approach to the rural water supply with a coordination mechanism to guarantee harmonization throughout all areas; (c) Carry out human rights impact assessments at each stage of a megaproject, with the meaningful participation of those affected in a transparent manner, facilitating easy access to information; (d) Commence a baseline survey in order to improve the availability of data on undocumented and statelessness persons in East Malaysia; (e) Create a coordination body at the federal level to assess the best legal, political and budgetary strategies to provide access to adequate public water and sanitation services, including in alternative education centres, for those who are undocumented, stateless or otherwise in an irregular situation; (f) Monitor how gender inequalities in access to toilets, including among gender non-conforming persons, manifest in spheres beyond the home. 18