1.   A survey will be carried out of sewage disposal systems and it is highly likely that major expenditure will be necessary.

2.   But sewage systems are not the only non-potable water systems cross-connected to the potable water supply.

3.   Even waste water from water changes is not allowed to go into our sewage system during this period.

4.   In many regions, industry is permitted to connect up to the domestic sewage system to discharge its toxic waste.

5.   Nearly half its people live without public services such as a sewage treatment system.

6.   The sewage system used in the autonomous house comprises two toilets and a composting tank.

7.   There is a sewage system, hand-dug, which replaced the open trenches that ran through the camp until recently.

8.   Voice over Urbanisation has also put pressure on the sewage system.