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SEWERAGF AND SEWAGE DISPOSAL
Sewerage and sewage disposal in the City of London are the responsibility of the City
Engineer who has supplied the following information
"The sewerage system in the City is comprised mainly of ovoid shaped brick sewers, the
average internal dimensions being 4 feet high x 2 feet 8 inches wide. This size being adopted
only to provide access for sewermen, as the normal dry weather flow depth of effluent is only
about 9 inches at an average velocity of 2 to 3 feet per second.
The Corporation sewers discharge into the London County Council intercepting sewers, which
flow eastwards across the City at a much lower depth, to their Northern Disposal and Outfall
Works at Beckton.
The system of sewerage in the City is adequate, with ample margin for diverting flows from
sewers during reconstruction and maintenance works".
WATER SUPPLY
The City of London is supplied with water principally by the Metropolitan Water Board and
the quantity and quality of the water has been satisfactory.
The Metropolitan Water Board has supplied the following information:
"The water supply is derived from two sources in varying and unpredictable proportions,
namely, New River-derived water from the Board's works at Stoke Newington and River
Thames-derived water from the Thames Valley filtration stations. The average analyses of
the water supplied during 1963 is set out on the attached tables.
New mains were laid in your area to the extent of 992 yards and included 154 yards of 15"
diameter trunk main. All new and repaired mains are chlorinated before being brought into
use or restored to service and samples of water from them are tested bacteriologically to
ensure that its quality is up to that normally supplied.
The Board's waters are not plumbo solvent. Samples are collected daily at each stage of
purification and in the distribution system. Immediate action is taken in respect of any form
of contamination or variation in quality."
There are 1030 dwelling-homes (including house-keepers' flats) in the City the majority of
which are supplied with water direct from the Board's mains.
In addition to the Metropolitan Water Board supply there are approximately 135 wells in use
in the City and these are kept under constant supervision.
The estimated night population of the City is only 4.580 but the day population of City
workers is estimated at approximately 500,000. The water supply in the City is adequate for
both day and night population.
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