Microbiology
of
Drinking
Water
Drinking
water
is
obtained
either
from
surface
sources
such
as
rivers,
lakes
or
from
underground.
Such
natural
waters
are
likely
to
be
polluted.
Although
water
purification
systems
envisage
protection
from
pollution,
sometimes,
the
water
supply
can
become
a
potential
carrier
of
pathogenic
organisms
and
endanger
public
health.
A
number
of
diseases
such
as
cholera,
typhoid,
viral
hepatitis
etc.,
are
known
to
be
water
borne.





