The layout of a sanitary sewer system is as shown in Figure 5. 34. Data on area, length, and elevations are given in Table 5. 9. The current population density, 100 persons/ha, is expected to increase to 250 persons/ha by the conversation of the dwellings to apartments.

The peak rate of sewage flow is 1,600 Lpd/ person. Design the sewer system.

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A B D E C G F H FIGURE 5.34 Layout of the sanitary sewer system of Problem 2.