The problem with waste water with the history along with the growth of the community. That is, when the population is scattered and not anything too much. Later, when the community population growth. The problem with the sewage, followed by the shadows. This is because water is the product of a person's daily life and the water even more, there are multiple and the substance of the new modern products adulterated with water, which will make things more difficult in the future, respectively.
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