Your answer is correct. Our wastewater is made up of a combination of water, which is derived from households, commercial facilities or as precipitation from surface areas. In addition, the undesirable infiltration of extraneous water into the channel also plays an important role in the composition of the wastewater.

Your answer is partially correct. Our wastewater is made up of a combination of water, which is derived from households, commercial facilities or as precipitation from surface areas. In addition, the undesirable infiltration of extraneous water into the channel also plays an important role in the composition of the wastewater.

Unfortunately, your answer is not correct. Our wastewater is made up of a combination of water, which is derived from households, commercial facilities or as precipitation from surface areas. In addition, the undesirable infiltration of extraneous water into the channel also plays an important role in the composition of the wastewater.

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