3.6 Water source and qualityBy Asian standards, MWSS water is considered of relatively good quality (ADB 1993). It is potable, whereas tap water in Bangkok, Jakarta, and other parts of Asia cannot be directly used for drinking. Table 8 reports households' perceptions about the quality of water from the various sources. Except for the problem in turbidity, the sample households generally found their water to be of good taste, odorless, and clear. Since vended water is mostly MWSS water, there are no major differences in the perceptions for those measures between the two groups. In terms of turbidity, however, nearly all households using vended water complained about the presence of particles in the water. Indeed, both MWSS and groundwater extracted by private waterworks and individual tubewells are all characterized by turbidity problems as 80% to 85% of households observed particles in their water. The main difference in quality of water is in terms of taste between MWSS on the one hand, and private water works and individual tubewells on the other hand. Because individual tubewells are shallower than deep tubewells used by private waterworks, the taste of water from the former is generally even poorer.
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