A/HRC/42/47/Add.4 polluted, meaning water from it could not be consumed even after conventional treatment (A/HRC/33/49/Add.1, para 50). 43. PLANAPS outlines the health impacts of insufficiently treated water that suffers contamination from, inter alia, agriculture, industry and wastewater. Specifically, PLANAPS mentions that, “the greater part of [surface waters]” are too contaminated to be considered a treatable source of drinking water. 10 PLANAPS details a baseline study on human health covering a number of health indicators including handwashing with soap, inadequate sanitation and unsafe water sources. It notes that “[t]he results obtained confirm that there is still a long way to go in terms of drinking water and sanitation in El Salvador.”11 In the light of the above, PLANAPS recommends that monitoring of ground water sources, consisting of periodic sampling, should be carried out, especially in those places that are preselected as possible sources of drinking water. PLANAPS’ strategy to monitor and improve the quality of water sources for human consumption and sanitation includes the program for the implementation of monitoring plans and monitoring of the water quality of the sources; the establishment of protection perimeters of water sources for population use; and the program for the implementation of monitoring plans of domestic wastewater. 44. The Government explained in its reply to the follow-up questionnaire that ANDA is in charge of providing water treatment services and conducting a strict quality control in water sources and in distribution systems it manages. Laboratories conducting quality controls are certified by various national and international standards. Furthermore, the Government recognised that intermittent water supply is one of the main problems for ANDA and rural systems throughout the country, due to obsolete water systems and their high leakage levels, as well as the decrease in the quantity of water at sources. The Government also referenced that the Technical Regulatory Agency (Organismo Salvadoreño de Reglamentación Técnica) is responsible for issuing regulations on water and sanitation that must be complied with by system operators. Such compliance is monitored by MINSAL's Environmental Health Directorate. The Government indicated that MARN has implemented a water quality control system for surface water bodies through a water quality index which qualifies water quality as excellent, good, moderate, or bad. The information obtained is used to define the most suitable type of treatment to purify surface water and to determine the possible uses of water. 45. The Special Rapporteur notes that PLANAPS includes measures to ensure the reduction of environmental pollution by taking efforts such as analysing water quality, limiting socio-economic activities impacting water, and monitoring discharges of domestic wastewater. He also noted the efforts from MARN to implement a water quality control system for surface water in order to define the most suitable type of treatment to purify surface water and to determine the possible uses of water as well as the recovery programme for urban rivers. He is, however, concerned that the Government did not critically and specifically target and address the pollution of water by pesticides and that such measures will not be able to overcome existing pollution from water sources and irregularities in water supplies which deeply affect drinking water quality and availability. Taking into account the negative impacts that water sources suffered from agricultural activities, it is necessary to specifically target such risks within its policies and adopt both preventive and reparative measures to address contamination by pollutants. LIMITED PROGRESS: The Special Rapporteur reiterates his recommendation and calls on the Government to conduct a critical assessment of the impact of environmental and agrochemical pollutants, and of interruptions in water supply, on the quality of water for human consumption and of the risks to health. 10 Government of El Salvador, “Plan Nacional de Agua Potable y Saneamiento, Resume Ejecutivo Septiembre 2017”, September 2017, at pg. 19. 11 12 Ibid..