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The waters in supply are of good organic quality and moderately hard
in character. They have no plumbo-solvent characteristics and the fluoride
content averages about one-sixth of a part per million. All houses are supplied
from mains and there are no standpipes for this purpose. In the
Croydon Undertaking's area, 674 samples of raw water and 1,279 samples
of water going into supply were tested bacteriologically. For results of
consumer samples of water sent by the Health Department to the Public
Health Laboratory Service see Appendix page 131.
SEWAGE DISPOSAL
I am indebted to the Borough Engineer, Mr. H.M. Collins, for the
following information:—
Beddington Sewage Treatment Works
The new sewage treatment works at Beddington was formally commissioned
by the Mayor on the 6th December, 1969 and the old works was
finally closed down on the 17th December. This has now brought to an end
the practice of irrigating partially treated sewage on land which has been
carried on at Beddington since 1860 but which has more recently, as a
result of overloading, been the cause of complaint.
The new works has been built over a period of five years at a cost of
£3,500,000 and serves a drainage area of 53 sq. miles, including Caterham
and Warlingham, parts of the London Borough of Sutton and part of Banstead
in addition to the major part of Croydon. The daily sewage flow is 18,150,000
Gallons in dry weather from a population of 365,000.