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20
SECTION C.
SANITARY AND ENVIRONMENTAL
CIRCUMSTANCES.
Water Supply.
I am indebted to the Director of Water Examination
Metropolitan Water Board for the following statement and also
for the details of analysis of water supplies, which are set out
in Appendix VI.
"The supply to the district of Chislehurst and Sidcup has
been adequate at all times in 1951 and is derived from the following
seven wells: Orpington, North Orpington, Shortlands.
Eynsford, Bexley, Wilmington and Darenth, together with
Thames-derived filtered water via Shortlands pumping station.
Bacteriological analyses of samples of water at the various
stages of purification of these sources of supply are made at least
five times a week and consistently satisfactory results have been
obtained. Chemical analyses of the samples are also made at
frequent intervals.
All supplies are treated with chlorine on the works, but any
excess remaining after a period of contact is removed completely
or reduced to an amount that will not be perceptible to consumers.
Tanks have been installed at North Orpington,
Orpington, Bexley and Wilmington to ensure an adequate period
of contact of chlorine with the water; tanks at other well
stations are planned or are in the course of construction.
All new and repaired mains are disinfected with chlorine
before being restored to supply and samples of water from them
are analysed to establish that it is up to the normal standard of
quality expected in the distribution system. None of the supplies
is plumbo-solvent.
We have no information with regard to the proportion of
the total number of dwelling houses and population in Chislehurst
and Sidcup which are supplied from each of the abovementioned
sources. All the houses are supplied directly and not
by means of stand-pipes."
The following information has been supplied by the Clerk
to the Metropolitan Water Board:—
"No new source of public water supply has been instituted
in the Council's area during 1951.
There have been no extensions of trunk mains.
Various lengths of service mains have been laid within the
Council's Urban District.
The water supply has been satisfactory as regards quantity."