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When only one set of sewers are used to carry both sanitary sewage and storm water, it is called as __________ system.

When only one set of sewers are used to carry both sanitary sewage and storm water, it is called as __________ system. Correct Answer Combined

In separate systems, two sets of sewers are used to carry sanitary sewage and storm/ surface water separately. In the combined system, a single sewer with a larger size is used to carry both sanitary sewage and surface water together.

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