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Sewage Disposal The Council have no sewage disposal responsibilities.
WATER SUPPLIES
Contributed by Dr.E.Windle Taylor, C.B.E., M.A., M.D., D.P.H., F.C.Path.
Director of Water Examination, Metropolitan Water Board.
1. (a) The supply was satisfactory both as to (i) quality, and (i i) quantity throughout I 971.
(b) All new and repaired mains are disinfected with chlorine; after a predetermined period of
contact the pipes are flushed out and refilled; samples of water are then collected from
these treated mains; and the mains are returned to service only after the analytical
results are found to be satisfactory.
The quality control from these laboratories is carried out by means of daily sampling
from sources of supply, from the treatment works or well stations, from the distribution
system, and through to the consumer. Any sign of contamination or any other abnormality
is immediately investigated.
(c) (i) The Board has no record of the number of structually separate dwellings supplied in
your area, but the population supplied direct according to the Registrar-General's
estimates at 30th June, I 971, was 233,960.
(ii) No houses were permanently supplied by standpipe.
(d) No artificial fluoride is being added, and where the fluoride content is indicated in the
analyses it represents the naturally occurring fluoride in the water.
2. (a) The supply was derived from the following works and pumping stations:-
Lee Bridge works, and Chingford Mill Pumping Station. Between May and September,
much of Walthamstow and parts of Chingford received water from Coppermills Works.
A small portion of Lower Chingford adjoining Sewardstone Road north of King's Head
Hill is supplied with Thames-derived water from Sewardstone Reservoir.
No new sources of supply were instituted and there were no changes to the general
scheme of supply in your area.
The number of samples collected and the bacteriological and chemical analyses of the
supply from the above sources after treatment are shown on pages 62 and 63 .
(b) On account of their hardness content and alkaline reaction the Board's river and well
water supplies are shown to be not plumbo-solvent. It should, however, be appreciated
that all types of water pick up varying amounts of metal from the material of water
piping particularly when it is newly installed; this applies to copper, zinc, iron and
also to lead.
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