For village houses built after 1984, the STS's should
have been designed to receive both sullage (i.e. wastewater
from a bath, shower, sink or basin) and toilet waste.
However, for older village houses, most of the STS's had
been designed to receive only toilet waste. For some old
village houses, no STS had been provided at all. Sullage
from these older village houses is commonly discharged
via surface channels to the nearby streams. Disposal of
sullage into surface channels can only be tolerated if
this does not result in pollution. Where necessary, the
EPD may require the responsible householder to install
proper facilities (e.g. a new STS) or extend the existing
STS for the disposal of both toilet waste and sullage.
|